/* ============================================================
   Navigation Bar
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-surface-strong);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1.5px solid var(--color-border);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.navbar-brand .brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.navbar-brand .brand-logo:hover {
  transform: scale(1.05);
}

.brand-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.brand-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.nav-link:hover {
  background: rgba(46, 106, 219, 0.1);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--color-primary) 0%, #5a8deb 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(46, 106, 219, 0.3);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-btn {
  width: 45px;
  height: 45px;
  border: none;
  border-radius: 12px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.nav-btn svg {
  width: 22px;
  height: 22px;
}

.nav-btn:hover {
  background: rgba(46, 106, 219, 0.1);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.nav-btn-mobile {
  display: none;
}

.hamburger {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  display: block;
  transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s ease;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

/* Page Content */
.page-content {
  display: none;
}

.page-content.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile responsive - DISABLED (showing desktop version on all devices) */
@media (max-width: 0px) {
  .navbar-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--color-surface-strong);
    flex-direction: column;
    gap: 0;
    padding: 1rem;
    border-bottom: 1.5px solid var(--color-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    display: none;
  }

  .navbar-menu.active {
    display: flex;
  }

  .nav-link {
    width: 100%;
    text-align: center;
  }

  .nav-btn-mobile {
    display: flex;
  }

  .brand-text {
    display: none;
  }
}

/* ============================================================
   Global Tokens & Resets
   ============================================================ */

:root {
  --font-sans: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;

  --color-bg: #f7f9fc;
  --color-surface: rgba(255, 255, 255, 0.9);
  --color-surface-strong: rgba(255, 255, 255, 0.98);
  --color-text: #0b1728;
  --color-text-soft: #40536d;
  --color-border: rgba(46, 106, 219, 0.2);
  --color-primary: #2e6adb;
  --color-primary-soft: rgba(46, 106, 219, 0.18);
  --color-primary-strong: rgba(46, 106, 219, 0.8);
  --color-accent: #f5b84c;
  --color-accent-soft: rgba(245, 184, 76, 0.25);
  --color-danger: #e95555;
  --gradient-surface: linear-gradient(135deg, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.5));
  --shadow-soft: 0 30px 60px -40px rgba(15, 47, 110, 0.6);
  --shadow-sharp: 0 18px 40px -20px rgba(9, 17, 37, 0.4);
}

[data-theme="dark"] {
  --color-bg: #05070f;
  --color-surface: rgba(10, 16, 32, 0.78);
  --color-surface-strong: rgba(16, 22, 41, 0.92);
  --color-text: #e7edfb;
  --color-text-soft: #a6b4d3;
  --color-border: rgba(91, 128, 212, 0.28);
  --gradient-surface: linear-gradient(135deg, rgba(30, 48, 80, 0.6), rgba(10, 16, 32, 0.9));
  --shadow-soft: 0 30px 60px -40px rgba(2, 7, 19, 0.8);
  --shadow-sharp: 0 18px 40px -20px rgba(0, 0, 0, 0.65);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-top: 70px; /* Space for fixed navbar */
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.hidden {
  display: none !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 600;
  line-height: 1.25;
}

p {
  margin: 0;
}

button,
input,
select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Background & Layout
   ============================================================ */

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image: radial-gradient(rgba(46, 106, 219, 0.08) 1px, transparent 0);
  background-size: 80px 80px;
  opacity: 0.4;
}

main {
  display: flex;
  flex-direction: column;
  gap: 6rem;
  padding: 0 6vw 8rem;
}

section.section {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 28px;
  padding: 3rem;
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.section-header p {
  max-width: 48ch;
  color: var(--color-text-soft);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  background: var(--color-surface-strong);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.status-pill .dot {
  width: 0.6rem;
  height: 0.6rem;
  display: inline-flex;
  border-radius: 999px;
  background: var(--color-primary);
}

.status-pill .pulse {
  position: relative;
}

.status-pill .pulse::after {
  content: "";
  position: absolute;
  inset: -0.2rem;
  border-radius: inherit;
  border: 2px solid var(--color-primary);
  opacity: 0.5;
  animation: pulse 1.6s ease-out infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.8);
    opacity: 0.85;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

.hero {
  position: relative;
  padding: 5rem 6vw 4rem;
  display: flex;
  justify-content: center;
  background: radial-gradient(circle at top left, rgba(46, 106, 219, 0.16), transparent 55%),
    radial-gradient(circle at top right, rgba(245, 184, 76, 0.2), transparent 55%);
}

.hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  width: min(1200px, 100%);
}

.hero-copy {
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.eyebrow {
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.cta,
.ghost {
  padding: 0.85rem 1.8rem;
  border-radius: 14px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid transparent;
}

.cta {
  background: linear-gradient(135deg, var(--color-primary), #1746a8);
  color: #ffffff;
  box-shadow: 0 15px 30px -18px rgba(26, 62, 142, 0.8);
}

.cta:hover,
.cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 36px -16px rgba(26, 62, 142, 0.9);
}

.ghost {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
}

.ghost:hover,
.ghost:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.theme-toggle {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--color-surface-strong);
  box-shadow: var(--shadow-sharp);
  display: grid;
  place-items: center;
  font-size: 1.4rem;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  transform: translateY(-2px);
}

/* ============================================================
   Simulation Controls & Layout
   ============================================================ */

.control-bar {
  display: grid;
  gap: 1.2rem;
  padding: 1.2rem 1.4rem;
  border-radius: 18px;
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.control-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.control-btn {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 12px;
  background: var(--color-surface-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1.2rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  border: 1px solid var(--color-border);
}

.control-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.control-btn-main {
  width: auto;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #5a8deb 100%);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  box-shadow: 0 4px 12px rgba(46, 106, 219, 0.3);
}

.control-btn-main:hover {
  box-shadow: 0 6px 16px rgba(46, 106, 219, 0.4);
  transform: translateY(-2px);
}

.control-btn-secondary {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
}

.control-btn:hover,
.control-btn:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sharp);
  background: rgba(46, 106, 219, 0.12);
}

.control-btn-main:hover {
  background: linear-gradient(135deg, #3a7aeb 0%, #6a9dff 100%);
}

/* Sim Status */
.sim-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-soft);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ef4444;  /* Kırmızı (durduruldu) */
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
  transition: all 0.3s ease;
}

.status-dot.active {
  background: #10b981;  /* Yeşil (çalışıyor) */
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
  animation: status-pulse 1.5s ease-in-out infinite;
}

@keyframes status-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.control-row.secondary label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text-soft);
}

.control-row.secondary input[type="range"],
.control-row.secondary select {
  min-width: 160px;
}

/* Scenario Select - Modern tasarım */
.scenario-select {
  padding: 0.6rem 2.5rem 0.6rem 1rem !important;
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.1) 0%, rgba(140, 111, 240, 0.1) 100%);
  border: 1.5px solid rgba(46, 106, 219, 0.25);
  border-radius: 8px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: all 0.3s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%232e6adb' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  box-shadow: 0 2px 8px rgba(46, 106, 219, 0.1);
}

.scenario-select:hover {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.15) 0%, rgba(140, 111, 240, 0.15) 100%);
  box-shadow: 0 4px 12px rgba(46, 106, 219, 0.2);
}

.scenario-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46, 106, 219, 0.15);
}

.scenario-info {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.8rem 1.2rem;
  background: rgba(46, 106, 219, 0.05);
  border-left: 3px solid var(--color-primary);
  border-radius: 8px;
  max-width: 380px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.scenario-text {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.scenario-text strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.scenario-text p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--color-text-soft);
}

.control-row.secondary input[type="range"] {
  accent-color: var(--color-primary);
}

input[type="range"] {
  appearance: none;
  height: 6px;
  border-radius: 6px;
  background: rgba(46, 106, 219, 0.18);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
  box-shadow: 0 3px 6px rgba(18, 45, 94, 0.45);
}

.lcd {
  display: grid;
  place-items: center;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  background: rgba(14, 32, 68, 0.9);
  color: #aef3ff;
  font-family: var(--font-mono);
  min-width: 90px;
}

.lcd strong {
  font-size: 1.1rem;
}

.state-indicator {
  display: grid;
  gap: 0.15rem;
}

.state-indicator .badge {
  background: rgba(46, 106, 219, 0.12);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  text-align: center;
}

.state-indicator .sub {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.legend-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  padding: 0.8rem 0;
  color: var(--color-text-soft);
}

.legend-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  display: inline-flex;
  margin-right: 0.5rem;
}

.legend-dot.register,
.legend-dot.cpu {
  background: var(--color-primary);
}

.legend-dot.memory,
.legend-dot.memory-active {
  background: #47bea9;
}

.legend-dot.io {
  background: #f57c52;
}

.legend-dot.bus-system,
.legend-dot.data {
  background: #f5b84c;
}

.legend-dot.address {
  background: #8c6ff0;
}

.legend-dot.bus-control,
.legend-dot.control {
  background: #ff67b5;
}

.simulation-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: stretch;
}

.diagram-canvas {
  position: relative;
  background: var(--color-surface-strong);
  border-radius: 24px;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

/* Execution Trace Table */
.execution-trace {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border-radius: 12px;
  border: 1px solid rgba(46, 106, 219, 0.12);
}

.trace-header {
  margin-bottom: 1.5rem;
}

.trace-header h4 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
}

.trace-header p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.trace-container {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-surface);
}

/* Custom scrollbar for webkit browsers */
.trace-container::-webkit-scrollbar {
  height: 8px;
}

.trace-container::-webkit-scrollbar-track {
  background: var(--color-surface);
  border-radius: 10px;
}

.trace-container::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--color-primary), #5a8deb);
  border-radius: 10px;
  transition: background 0.3s ease;
}

.trace-container::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #3a7aeb, #6a9dff);
}

.trace-step {
  flex-shrink: 0;
  min-width: 420px;
  border: 1.5px solid rgba(46, 106, 219, 0.2);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(46, 106, 219, 0.03);
  transition: all 0.3s ease;
}

.trace-step.is-active {
  background: rgba(46, 106, 219, 0.12);
  border: 2px solid var(--color-primary);
  box-shadow: 0 4px 16px rgba(46, 106, 219, 0.25);
  transform: scale(1.03);
}

.trace-step-label {
  padding: 0.6rem 1rem;
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.15) 0%, rgba(140, 111, 240, 0.15) 100%);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  text-align: center;
  border-bottom: 1.5px solid rgba(46, 106, 219, 0.2);
  transition: all 0.3s ease;
}

.trace-step.is-active .trace-step-label {
  background: var(--color-primary);
  color: white;
  font-weight: 700;
}

.trace-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(46, 106, 219, 0.1);
}

.trace-column {
  background: var(--color-surface);
  padding: 1rem;
}

.trace-column-header {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.trace-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.trace-table td {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid rgba(46, 106, 219, 0.08);
}

.trace-table td:first-child {
  font-weight: 600;
  color: var(--color-text-soft);
  width: 35%;
}

.trace-table td:last-child {
  color: var(--color-text);
  text-align: right;
}

.trace-table tr.changed {
  background: rgba(255, 193, 7, 0.15);
  animation: highlight-change 0.6s ease;
}

.trace-table tr.changed td {
  color: var(--color-accent);
  font-weight: 700;
}

@keyframes highlight-change {
  0%, 100% {
    background: rgba(255, 193, 7, 0.15);
  }
  50% {
    background: rgba(255, 193, 7, 0.35);
  }
}

#architecture-diagram {
  width: 100%;
  height: auto;
  display: block;
}

.diagram-tooltip {
  position: absolute;
  min-width: 220px;
  max-width: 280px;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sharp);
  font-size: 0.95rem;
  color: var(--color-text);
  z-index: 9999;
  pointer-events: none;
  transition: opacity 0.12s ease;
}

.info-panel {
  position: sticky;
  top: 3.5rem;
  display: grid;
  gap: 1.4rem;
  padding: 1.8rem;
  border-radius: 22px;
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  height: fit-content;
}

.info-header {
  display: grid;
  gap: 0.6rem;
}

.info-header p {
  color: var(--color-text-soft);
}

.info-body p + p {
  margin-top: 0.8rem;
}

.info-metrics dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  color: var(--color-text-soft);
}

.info-metrics dd {
  margin: 0.2rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.6;
}

.info-metrics dd strong {
  color: var(--color-primary);
  font-weight: 600;
}

.info-metrics dd em {
  color: var(--color-accent);
  font-style: normal;
  font-size: 0.85rem;
}

.info-flow-detail {
  margin-top: 1.5rem;
  padding: 1.2rem;
  background: rgba(46, 106, 219, 0.05);
  border-left: 3px solid var(--color-primary);
  border-radius: 6px;
}

.flow-detail-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.8rem;
  color: var(--color-primary);
}

.flow-steps {
  margin: 0;
  padding-left: 1.5rem;
  list-style: none;
  counter-reset: flow-counter;
}

.flow-steps li {
  counter-increment: flow-counter;
  position: relative;
  padding-left: 0.5rem;
  margin-bottom: 0.7rem;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text);
}

.flow-steps li::before {
  content: counter(flow-counter);
  position: absolute;
  left: -1.5rem;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.3rem;
  height: 1.3rem;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
}

.flow-steps li strong {
  color: var(--color-accent);
  font-weight: 600;
}

.flow-steps li code {
  padding: 0.1rem 0.4rem;
  background: rgba(140, 111, 240, 0.15);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-accent);
}

.info-actions {
  display: flex;
  justify-content: flex-start;
}

.cta--ghost {
  background: rgba(46, 106, 219, 0.1);
  color: var(--color-primary);
}

.cta--ghost:hover,
.cta--ghost:focus-visible {
  box-shadow: var(--shadow-soft);
}

.step-track {
  margin-top: 2.5rem;
  padding: 1.8rem;
  border-radius: 22px;
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 1.2rem;
}

.step-track-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.step-count {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.step-progress {
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: rgba(46, 106, 219, 0.12);
  overflow: hidden;
}

.step-progress-bar {
  position: absolute;
  inset: 0;
  width: 25%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), #1746a8);
  transition: width 0.3s ease;
}

.step-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.step-list li {
  list-style: none;
}

.step-pill {
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.step-pill:hover,
.step-pill:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.step-pill.is-active {
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.1), rgba(46, 106, 219, 0.28));
  color: var(--color-primary);
  border-color: rgba(46, 106, 219, 0.4);
  box-shadow: 0 10px 24px -18px rgba(26, 62, 142, 0.6);
}

.step-narration {
  margin: 0;
  color: var(--color-text-soft);
  font-size: 0.98rem;
  line-height: 1.5;
}

.diagram-reference {
  margin-top: 2.5rem;
  padding: 1.8rem;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-strong);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 1.4rem;
}

.diagram-reference-header h3 {
  margin-bottom: 0.4rem;
}

.diagram-reference-header p {
  color: var(--color-text-soft);
  max-width: 65ch;
}

.diagram-reference-controls {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.reference-tab {
  padding: 0.6rem 1.2rem;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.reference-tab:hover,
.reference-tab:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.reference-tab.is-active {
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.12), rgba(46, 106, 219, 0.28));
  border-color: rgba(46, 106, 219, 0.45);
  color: var(--color-primary);
  box-shadow: 0 10px 24px -18px rgba(26, 62, 142, 0.6);
}

.diagram-reference-viewport {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: rgba(12, 26, 54, 0.35);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  min-height: 260px;
}

.diagram-reference-viewport img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: rgba(0, 0, 0, 0.05);
}

.diagram-reference-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

#reference-caption {
  margin: 0;
  color: var(--color-text-soft);
  max-width: 55ch;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge--ghost {
  background: rgba(46, 106, 219, 0.12);
  color: var(--color-primary);
}

/* ============================================================
   SVG Styling
   ============================================================ */

/* CPU Border */
.cpu-border {
  fill: rgba(255, 255, 255, 0.05);
  stroke: rgba(46, 106, 219, 0.4);
  stroke-width: 2;
  filter: url(#soft-shadow);
  pointer-events: none;
}

/* Register Bank Container */
.register-bank-border {
  fill: rgba(46, 106, 219, 0.05);
  stroke: rgba(46, 106, 219, 0.25);
  stroke-width: 1.5;
  pointer-events: none;
}

/* Register Shapes - Rounded pills like in images */
.register-shape {
  fill: rgba(46, 106, 219, 0.12);
  stroke: rgba(46, 106, 219, 0.35);
  stroke-width: 2;
  filter: url(#soft-shadow);
  transition: transform 0.2s ease, fill 0.25s ease, stroke 0.25s ease;
}

.register-node:hover .register-shape {
  fill: rgba(46, 106, 219, 0.22);
  transform: translateY(-2px);
}

.register-node.is-active .register-shape {
  fill: rgba(46, 106, 219, 0.35);
  stroke: rgba(46, 106, 219, 0.6);
  stroke-width: 2.5;
}

/* ALU - Trapezoid Shape */
.alu-shape {
  fill: rgba(46, 106, 219, 0.12);
  stroke: rgba(46, 106, 219, 0.35);
  stroke-width: 2;
  filter: url(#soft-shadow);
  transition: transform 0.2s ease, fill 0.25s ease;
}

.sub-node[data-node="alu"]:hover .alu-shape {
  fill: rgba(46, 106, 219, 0.22);
  transform: translateY(-2px);
}

.sub-node[data-node="alu"].is-active .alu-shape {
  fill: rgba(46, 106, 219, 0.35);
  stroke: rgba(46, 106, 219, 0.6);
}

/* Control Unit - Yellow Box */
.control-unit-shape {
  fill: rgba(46, 106, 219, 0.12);
  stroke: rgba(46, 106, 219, 0.35);
  stroke-width: 2;
  filter: url(#soft-shadow);
  transition: transform 0.2s ease, fill 0.25s ease;
}

.sub-node[data-node="control-unit"]:hover .control-unit-shape {
  fill: rgba(46, 106, 219, 0.22);
  transform: translateY(-2px);
}

.sub-node[data-node="control-unit"].is-active .control-unit-shape {
  fill: rgba(46, 106, 219, 0.35);
  stroke: rgba(46, 106, 219, 0.6);
}

/* Memory Border and Cells */
.memory-border {
  fill: rgba(255, 255, 255, 0.05);
  stroke: rgba(71, 190, 169, 0.4);
  stroke-width: 2;
  filter: url(#soft-shadow);
  pointer-events: none;
}

.memory-cell {
  fill: rgba(71, 190, 169, 0.1);
  stroke: rgba(71, 190, 169, 0.42);
  stroke-width: 1.5;
  transition: fill 0.25s ease;
}

.memory-cell:hover,
.memory-bank:hover .memory-cell {
  fill: rgba(71, 190, 169, 0.22);
}

.memory-bank.is-active .memory-cell {
  fill: rgba(71, 190, 169, 0.35);
  stroke: rgba(71, 190, 169, 0.6);
}

/* I/O Border */
.io-border {
  fill: rgba(255, 255, 255, 0.05);
  stroke: rgba(245, 124, 82, 0.4);
  stroke-width: 2;
  filter: url(#soft-shadow);
  pointer-events: none;
}

.io-buffer-shape {
  fill: rgba(245, 124, 82, 0.12);
  stroke: rgba(245, 124, 82, 0.42);
  stroke-width: 1.5;
  transition: fill 0.25s ease, transform 0.2s ease;
}

.sub-node[data-node="io-buffer"]:hover .io-buffer-shape {
  fill: rgba(245, 124, 82, 0.25);
  transform: translateY(-2px);
}

.sub-node[data-node="io-buffer"].is-active .io-buffer-shape {
  fill: rgba(245, 124, 82, 0.35);
  stroke: rgba(245, 124, 82, 0.6);
}

.node-title {
  fill: var(--color-text);
  font-weight: 700;
  font-size: 0.85rem;
  text-anchor: middle;
  letter-spacing: 0.02em;
  pointer-events: none;
}

.bank-title {
  fill: var(--color-text);
  font-weight: 600;
  font-size: 0.75rem;
  text-anchor: middle;
  pointer-events: none;
}

.bank-label {
  fill: var(--color-text-soft);
  font-weight: 600;
  font-size: 0.7rem;
  text-anchor: middle;
  letter-spacing: 0.05em;
  pointer-events: none;
}

.register-text,
.alu-text,
.control-text,
.io-text {
  fill: var(--color-text);
  font-weight: 600;
  font-size: 0.7rem;
  text-anchor: middle;
  pointer-events: none;
}

.alu-text,
.control-text,
.io-text {
  font-size: 0.65rem;
}

.memory-address-label {
  fill: var(--color-text-soft);
  font-size: 0.65rem;
  font-family: var(--font-mono);
  pointer-events: none;
}

.memory-separator {
  fill: var(--color-text-soft);
  font-size: 1.2rem;
  text-anchor: middle;
  pointer-events: none;
}

.bus-label {
  fill: var(--color-text);
  font-weight: 600;
  font-size: 0.75rem;
  text-anchor: middle;
  pointer-events: none;
}

/* Bus Lines */
.bus-line {
  fill: none;
  stroke-width: 12;
  stroke-linecap: round;
  opacity: 0.45;
  transition: opacity 0.3s ease, stroke-width 0.3s ease;
}

.bus-line--data,
.bus-line--system,
.bus-line--system-return {
  stroke: rgba(245, 184, 76, 0.7);
}

.bus-line--address {
  stroke: rgba(140, 111, 240, 0.7);
}

.bus-line--control,
.bus-line--control-signal {
  stroke: rgba(255, 103, 181, 0.7);
}

.bus-line--io,
.bus-line--io-bus-up,
.bus-line--io-bus-down {
  stroke: rgba(245, 124, 82, 0.65);
}

.bus-line--internal {
  stroke: rgba(46, 106, 219, 0.6);
  stroke-width: 8;
  opacity: 0.4;
}

.bus-line {
  cursor: help;
  pointer-events: stroke;
}

.bus-line:hover {
  opacity: 0.8;
  stroke-width: 14;
  filter: drop-shadow(0 0 8px currentColor);
}

.node:focus-visible,
.sub-node:focus-visible,
.node:focus,
.sub-node:focus {
  outline: none;
}

.node:focus-visible .cpu-border,
.node:focus-visible .memory-border,
.node:focus-visible .io-border {
  stroke-width: 3;
  stroke: var(--color-accent);
}

.bus-line.is-active {
  opacity: 1;
  stroke-width: 14;
  stroke-dasharray: 12 14;
  animation: dash-flow 0.8s linear infinite;
}

/* Yön belirtilmişse animasyon yönünü değiştir */
.bus-line.is-active[data-direction="reverse"] {
  animation: dash-flow-reverse 0.8s linear infinite;
}

@keyframes dash-flow {
  to {
    stroke-dashoffset: -26;
  }
}

@keyframes dash-flow-reverse {
  to {
    stroke-dashoffset: 26;
  }
}

.flow-particle {
  fill: var(--color-accent);
  opacity: 0.9;
  transition: opacity 0.2s ease;
  filter: drop-shadow(0 0 6px var(--color-accent));
}

/* ============================================================
   Accordion & Layer Sections
   ============================================================ */

.accordion {
  display: grid;
  gap: 1rem;
}

.accordion-item {
  border-radius: 18px;
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  padding: 1.4rem 1.8rem;
  background: transparent;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
}

.accordion-trigger:hover,
.accordion-trigger:focus-visible {
  background: rgba(46, 106, 219, 0.08);
}

.accordion-panel {
  padding: 1.6rem 1.8rem 2rem;
  display: none;
}

.accordion-item.is-open .accordion-panel {
  display: block;
}

.accordion-item.is-open .icon {
  transform: rotate(180deg);
}

/* ============================================================
 * Components Section
 * ============================================================ */
.components-section {
  background: var(--color-bg);
}

.component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.component-card {
  padding: 1.4rem;
  border-radius: 16px;
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 0.8rem;
}

.component-card h3 {
  font-size: 1.05rem;
}

.component-card p {
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

.component-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--color-text-soft);
}

.component-meta span {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(46, 106, 219, 0.08);
}

.micro-zoom {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.micro-layer {
  padding: 1.4rem;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.panel-note {
  margin-top: 1rem;
  color: var(--color-text-soft);
  font-size: 0.9rem;
}

/* ============================================================
   Timeline & Microfacts
   ============================================================ */

.timeline-wrapper {
  display: grid;
  gap: 1.5rem;
}

#generation-slider {
  width: 100%;
}

.timeline-content {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}

.timeline-card {
  padding: 1.6rem;
  border-radius: 18px;
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 0.9rem;
}

.timeline-card ul {
  padding-left: 1.2rem;
  list-style: disc;
  color: var(--color-text-soft);
}

.timeline-visual {
  border-radius: 18px;
  min-height: 280px;
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.12), transparent);
  border: 1px dashed var(--color-border);
  display: grid;
  place-items: center;
  font-size: 1rem;
  color: var(--color-text-soft);
  text-align: center;
  padding: 1.2rem;
}

.microfacts {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
}

.microfact-carousel {
  display: flex;
  justify-content: center;
  padding: 2rem;
}

.microfact-card {
  padding: 1.8rem;
  border-radius: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  max-width: 560px;
  text-align: center;
  display: grid;
  gap: 0.8rem;
}

.microfact-card h3 {
  color: var(--color-primary);
}

/* Slide atlas styles removed - section deleted */

/* ============================================================
 * Theory Section Styles
 * ============================================================ */

.theory-section {
  background: var(--color-surface);
}

.theory-accordion {
  display: grid;
  gap: 1.2rem;
}

.theory-item {
  border-radius: 16px;
  border: 1.5px solid var(--color-border);
  background: var(--gradient-surface);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
  overflow: hidden;
}

.theory-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sharp);
}

.theory-item[open] {
  border-color: var(--color-primary);
  background: var(--color-surface-strong);
}

.theory-item summary {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.5rem 1.8rem;
  cursor: pointer;
  list-style: none;
  -webkit-user-select: none;
  user-select: none;
  transition: background 0.3s ease;
}

.theory-item summary::-webkit-details-marker {
  display: none;
}

.theory-item summary:hover {
  background: rgba(46, 106, 219, 0.05);
}

.theory-item[open] summary {
  background: rgba(46, 106, 219, 0.08);
  border-bottom: 1.5px solid var(--color-border);
}

.theory-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--color-primary);
  stroke-width: 2;
}

.theory-item summary > div {
  flex: 1;
}

.theory-item summary h3 {
  margin: 0 0 0.3rem 0;
  font-size: 1.2rem;
  color: var(--color-text);
}

.theory-item summary p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.theory-content {
  padding: 2rem 1.8rem;
  color: var(--color-text);
  line-height: 1.7;
}

.theory-content h4 {
  margin: 1.5rem 0 0.8rem 0;
  color: var(--color-primary);
  font-size: 1.05rem;
}

.theory-content h4:first-child {
  margin-top: 0;
}

.theory-content ul {
  margin: 0.8rem 0;
  padding-left: 1.5rem;
}

.theory-content li {
  margin: 0.5rem 0;
}

.theory-content li ul {
  margin-top: 0.5rem;
}

.theory-content strong {
  color: var(--color-primary);
}

.instruction-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.instruction-table thead {
  background: rgba(46, 106, 219, 0.1);
}

.instruction-table th,
.instruction-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--color-border);
}

.instruction-table th {
  font-weight: 700;
  color: var(--color-primary);
}

.instruction-table tbody tr:hover {
  background: rgba(46, 106, 219, 0.05);
}

.instruction-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-primary);
}

.instruction-table td:nth-child(2) {
  font-family: var(--font-mono);
  color: var(--color-accent);
}

.code-block {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  padding: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
  margin: 1rem 0;
  color: var(--color-text);
}

.external-links {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  gap: 1rem;
}

.external-links li {
  margin: 0;
}

.external-links a {
  display: block;
  padding: 1.2rem 1.5rem;
  border-radius: 12px;
  border: 1.5px solid var(--color-border);
  background: var(--gradient-surface);
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

.external-links a:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-strong);
  transform: translateX(8px);
  box-shadow: var(--shadow-soft);
}

.external-links a strong {
  display: block;
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 0.3rem;
}

.external-links a span {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  margin: 5rem 6vw 3rem;
  padding: 2.5rem 3rem;
  border-radius: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer ul {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--color-text-soft);
}

.footer-meta {
  display: grid;
  gap: 0.4rem;
  color: var(--color-text-soft);
}

/* ============================================================
   Modal
   ============================================================ */

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(2, 8, 20, 0.45);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 50;
}

.modal[hidden] {
  display: none;
}

.modal-content {
  width: min(480px, 90vw);
  background: var(--color-surface-strong);
  border-radius: 22px;
  padding: 2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sharp);
  display: grid;
  gap: 1.6rem;
}

.modal-content ol {
  display: grid;
  gap: 0.8rem;
  color: var(--color-text-soft);
}

.modal-content footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-content label {
  font-size: 0.9rem;
  color: var(--color-text-soft);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* ============================================================
   Responsiveness
   ============================================================ */

@media (max-width: 0px) {
  .simulation-layout {
    grid-template-columns: 1fr;
  }

  .info-panel {
    position: relative;
    top: auto;
  }

  .section-header {
    flex-direction: column;
  }

  /* Slide atlas media queries removed */
}

@media (max-width: 0px) {
  main {
    padding: 0 5vw 6rem;
  }

  section.section {
    padding: 2.4rem;
  }

  .hero {
    padding-bottom: 3rem;
  }

  .hero-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .control-bar {
    padding: 1rem;
  }

  .control-row.secondary {
    flex-wrap: wrap;
  }

  .info-metrics dl {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-content {
    grid-template-columns: 1fr;
  }

  .slide-atlas-detail {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 0px) {
  section.section {
    padding: 1.8rem;
  }

  main {
    gap: 4rem;
  }

  .control-row.primary {
    flex-wrap: wrap;
  }

  .control-row.secondary {
    flex-direction: column;
    align-items: flex-start;
  }

  .legend-panel {
    gap: 0.8rem;
  }

  .info-metrics dl {
    grid-template-columns: 1fr;
  }

  .step-list {
    flex-direction: column;
  }

  .slide-atlas-layout {
    gap: 1.5rem;
  }

  .slide-atlas-menu {
    padding: 1rem;
  }

  .footer {
    margin: 4rem 5vw 2.5rem;
    padding: 2rem;
    flex-direction: column;
  }
}

/* ============================================================
   Reduced Motion
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .bus-line.is-active {
    animation: none;
    stroke-dasharray: none;
  }
}

/* ============================================================
 * Keyboard & Input Protection Utilities
 * ============================================================ */

/* Prevent space/arrow keys from scrolling page when focused */
.prevent-keyboard-scroll {
  /* Applied via JS to textarea/input elements */
  position: relative; /* Prevent empty ruleset warning */
}

textarea.prevent-keyboard-scroll:focus,
input.prevent-keyboard-scroll:focus,
.vvm-code-editor:focus-within {
  /* Visual indication that keyboard shortcuts are disabled */
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================================
 * VVM Simulator Styles
 * ============================================================ */

.vvm-simulator {
  background: var(--color-surface);
}

.vvm-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

/* Left Panel: Code Editor */
.vvm-left-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.vvm-examples {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.vvm-examples label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.vvm-select {
  padding: 0.75rem 1rem;
  border: 1.5px solid rgba(46, 106, 219, 0.25);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: var(--font-base);
  cursor: pointer;
  transition: all 0.3s ease;
}

.vvm-select:hover {
  border-color: var(--color-primary);
}

.vvm-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46, 106, 219, 0.1);
}

.vvm-editor-container {
  display: flex;
  flex-direction: column;
  border: 1.5px solid rgba(46, 106, 219, 0.25);
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-bg);
}

.vvm-editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.1) 0%, rgba(140, 111, 240, 0.1) 100%);
  border-bottom: 1.5px solid rgba(46, 106, 219, 0.2);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.vvm-editor-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.vvm-btn-small {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  border: 1px solid rgba(46, 106, 219, 0.3);
  background: transparent;
  color: var(--color-primary);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.vvm-btn-small svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.vvm-btn-small:hover {
  background: rgba(46, 106, 219, 0.1);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.vvm-editor-wrapper {
  display: grid;
  grid-template-columns: auto 1fr;
  position: relative;
  min-height: 350px;
  max-height: 500px;
  overflow: hidden;
}

.vvm-line-numbers {
  padding: 1rem 0.5rem;
  background: rgba(46, 106, 219, 0.05);
  border-right: 1.5px solid rgba(46, 106, 219, 0.2);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-soft);
  text-align: right;
  -webkit-user-select: none;
  user-select: none;
  line-height: 1.6;
  overflow: hidden;
  white-space: pre;
  min-width: 40px;
  pointer-events: none;
}

.vvm-code-editor {
  padding: 1rem;
  border: none;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.6;
  resize: none;
  overflow-y: auto;
  overflow-x: auto;
  white-space: pre;
  word-wrap: normal;
}

.vvm-code-editor:focus {
  outline: none;
}

.vvm-code-editor::placeholder {
  color: var(--color-text-soft);
  opacity: 0.5;
}

/* Multi-cursor mode indicator */
.vvm-code-editor[data-multi-cursor="true"] {
  outline: 2px solid var(--color-accent) !important;
  outline-offset: 2px;
}

.vvm-code-editor[data-multi-cursor="true"]::before {
  content: "MULTI-CURSOR MODE (Esc to exit)";
  position: absolute;
  top: -2rem;
  right: 0.5rem;
  background: var(--color-accent);
  color: #000;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  z-index: 10;
  animation: pulse-multi-cursor 1.5s ease-in-out infinite;
}

@keyframes pulse-multi-cursor {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

.vvm-editor-info {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: rgba(46, 106, 219, 0.05);
  border-top: 1.5px solid rgba(46, 106, 219, 0.2);
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

/* Keyboard Shortcuts Panel */
.vvm-shortcuts-panel {
  margin-top: 1rem;
}

.vvm-shortcuts-toggle {
  background: rgba(46, 106, 219, 0.05);
  border: 1.5px solid rgba(46, 106, 219, 0.15);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.vvm-shortcuts-toggle:hover {
  background: rgba(46, 106, 219, 0.08);
  border-color: rgba(46, 106, 219, 0.25);
}

.vvm-shortcuts-toggle summary {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.vvm-shortcuts-toggle summary::-webkit-details-marker {
  display: none;
}

.vvm-shortcuts-toggle summary::before {
  content: "▶";
  font-size: 0.7rem;
  transition: transform 0.3s ease;
}

.vvm-shortcuts-toggle[open] summary::before {
  transform: rotate(90deg);
}

.vvm-shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(46, 106, 219, 0.15);
}

.vvm-shortcut-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.vvm-shortcut-item kbd {
  background: linear-gradient(135deg, rgba(46, 106, 219, 0.15), rgba(46, 106, 219, 0.08));
  color: var(--color-text);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(46, 106, 219, 0.25);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(46, 106, 219, 0.1);
  white-space: nowrap;
}

.vvm-shortcut-item span {
  color: var(--color-text-soft);
  flex: 1;
}

.vvm-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: rgba(46, 106, 219, 0.05);
  border-radius: 12px;
  border: 1.5px solid rgba(46, 106, 219, 0.15);
}

.vvm-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.vvm-btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #5a8deb 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(46, 106, 219, 0.3);
}

.vvm-btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(46, 106, 219, 0.4);
}

.vvm-btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid rgba(46, 106, 219, 0.3);
}

.vvm-btn-secondary:hover:not(:disabled) {
  background: rgba(46, 106, 219, 0.1);
  border-color: var(--color-primary);
}

.vvm-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.vvm-speed-control {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.vvm-speed-control label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.vvm-slider {
  width: 100px;
  height: 6px;
  border-radius: 3px;
  background: rgba(46, 106, 219, 0.2);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.vvm-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  transition: all 0.3s ease;
}

.vvm-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 4px rgba(46, 106, 219, 0.2);
}

.vvm-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

.vvm-slider::-moz-range-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 4px rgba(46, 106, 219, 0.2);
}

#vvm-speed-label {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-primary);
  min-width: 2rem;
}

.vvm-help-box {
  padding: 1.5rem;
  background: rgba(46, 106, 219, 0.05);
  border-radius: 12px;
  border: 1.5px solid rgba(46, 106, 219, 0.15);
}

.vvm-help-box h4 {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--color-primary);
}

.vvm-instruction-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.vvm-instruction-list li {
  font-size: 0.85rem;
  color: var(--color-text);
}

.vvm-instruction-list code {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(46, 106, 219, 0.1);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

/* Right Panel: Registers, Memory, Output */
.vvm-right-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.vvm-panel {
  padding: 1.5rem;
  background: var(--color-bg);
  border: 1.5px solid rgba(46, 106, 219, 0.2);
  border-radius: 12px;
}

.vvm-panel h3 {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--color-primary);
}

.vvm-registers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.vvm-register {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem;
  background: rgba(46, 106, 219, 0.05);
  border-radius: 8px;
  border: 1.5px solid rgba(46, 106, 219, 0.15);
  transition: all 0.3s ease;
}

.vvm-register label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.vvm-register-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.vvm-register.changed {
  background: rgba(255, 193, 7, 0.15);
  border-color: var(--color-accent);
  animation: register-pulse 0.6s ease;
}

.vvm-register.changed .vvm-register-value {
  color: var(--color-accent);
}

@keyframes register-pulse {
  0%, 100% {
    background: rgba(255, 193, 7, 0.15);
  }
  50% {
    background: rgba(255, 193, 7, 0.35);
  }
}

.vvm-register-flags {
  grid-column: span 3;
}

.vvm-register-flags .vvm-register-value {
  display: flex;
  gap: 0.5rem;
}

.flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  background: rgba(46, 106, 219, 0.1);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-soft);
  transition: all 0.3s ease;
}

.flag.active {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(46, 106, 219, 0.3);
}

.vvm-memory-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 0.4rem;
  max-height: 400px;
  overflow-y: auto;
}

.vvm-memory-cell {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.4rem;
  background: rgba(46, 106, 219, 0.05);
  border-radius: 4px;
  border: 1.5px solid rgba(46, 106, 219, 0.15);
  transition: all 0.3s ease;
  font-size: 0.75rem;
  aspect-ratio: 1;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.vvm-memory-cell-addr {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
}

.vvm-memory-cell-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  line-height: 1;
}

.vvm-memory-cell.changed {
  background: rgba(255, 193, 7, 0.15);
  border-color: var(--color-accent);
  animation: memory-pulse 0.6s ease;
}

.vvm-memory-cell.changed .vvm-memory-cell-value {
  color: var(--color-accent);
}

@keyframes memory-pulse {
  0%, 100% {
    background: rgba(255, 193, 7, 0.15);
  }
  50% {
    background: rgba(255, 193, 7, 0.35);
  }
}

.vvm-output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.vvm-output-header h3 {
  margin: 0;
}

.vvm-output-console {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--color-bg);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  padding: 1rem;
  border-radius: 8px;
  min-height: 150px;
  max-height: 250px;
  overflow-y: auto;
  line-height: 1.6;
}

.vvm-output-line {
  margin-bottom: 0.5rem;
}

.vvm-output-info {
  color: #3b82f6; /* Blue */
}

.vvm-output-success {
  color: #10b981; /* Green */
}

.vvm-output-error {
  color: #ef4444; /* Red */
}

.vvm-output-warning {
  color: #f59e0b; /* Orange */
}

/* Dark mode overrides */
[data-theme="dark"] .vvm-output-info {
  color: #60a5fa;
}

[data-theme="dark"] .vvm-output-success {
  color: #34d399;
}

[data-theme="dark"] .vvm-output-error {
  color: #f87171;
}

[data-theme="dark"] .vvm-output-warning {
  color: #fbbf24;
}

.vvm-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: rgba(46, 106, 219, 0.05);
  border-radius: 8px;
  border: 1.5px solid rgba(46, 106, 219, 0.15);
}

.vvm-status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  animation: status-blink 2s ease-in-out infinite;
}

.status-ready {
  background: #0f0;
}

.status-running {
  background: #fa0;
}

.status-halted {
  background: #f55;
}

.status-error {
  background: #f00;
  animation: status-blink 0.5s ease-in-out infinite;
}

@keyframes status-blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

#vvm-cycle-count {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .vvm-container {
    grid-template-columns: 1fr;
  }

  .vvm-instruction-list {
    grid-template-columns: 1fr;
  }

  .vvm-controls {
    flex-wrap: wrap;
  }

  .vvm-speed-control {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 0px) {
  .vvm-registers-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vvm-register-flags {
    grid-column: span 2;
  }

  .vvm-memory-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vvm-btn {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
}

/* ============================================================
 * Footer
 * ============================================================ */
.footer {
  background: var(--gradient-surface);
  border-top: 1.5px solid var(--color-border);
  padding: 3rem 2rem;
  margin-top: 4rem;
  text-align: center;
}

.footer-contact {
  max-width: 600px;
  margin: 0 auto;
}

.footer-contact h3 {
  color: var(--color-primary);
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.footer-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0.5rem 0;
}

.footer-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin: 0.75rem 0;
  color: var(--color-text-soft);
  font-size: 1rem;
}

.footer-info svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.footer-info a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-info a:hover {
  color: var(--color-primary);
  transform: translateX(4px);
}

.footer-license {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-soft);
  font-size: 0.9rem;
}

.footer-license svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.footer-license a {
  color: var(--color-text-soft);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-license a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-copyright {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-soft);
  text-align: center;
  font-style: italic;
}

@media (max-width: 0px) {
  /* Main section spacing */
  section.section {
    padding: 2rem 1rem !important;
    margin-bottom: 2rem;
  }
  
  main {
    gap: 2rem !important;
  }
  
  /* Hero section - compact */
  .hero {
    padding: 3rem 1rem !important;
    min-height: auto;
  }
  
  .hero h1 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
  }
  
  .hero p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }
  
  .hero-actions .cta,
  .hero-actions .ghost {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1.25rem;
  }
  
  /* Section headers - compact */
  .section-header {
    padding: 0 0 1.5rem 0;
  }
  
  .section-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }
  
  .section-header p {
    font-size: 0.9rem;
  }
  
  /* Simulation section - compact */
  .simulation-layout {
    gap: 1.5rem;
  }
  
  /* Diagram section - hide on mobile, show notice */
  .diagram-canvas {
    display: none;
  }
  
  /* Show a mobile-friendly notice instead */
  .simulation-layout::before {
    content: "💡 İnteraktif diyagram desktop cihazlarda daha iyi deneyim sunar. Şimdilik aşağıdaki kontroller ve bileşen bilgilerini kullanabilirsiniz.";
    display: block;
    padding: 1rem;
    margin-bottom: 1rem;
    background: rgba(46, 106, 219, 0.1);
    border: 1px solid rgba(46, 106, 219, 0.3);
    border-radius: 12px;
    color: var(--color-text);
    font-size: 0.85rem;
    line-height: 1.5;
    text-align: center;
  }
  
  /* Control panel - compact */
  .control-bar {
    padding: 1rem;
    gap: 1rem;
  }
  
  .control-row {
    gap: 0.5rem;
    flex-wrap: wrap;
  }
  
  .control-btn {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
  
  .sim-status {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
  }
  
  /* Info panel - compact */
  .info-panel {
    padding: 1.25rem;
    max-height: 400px;
  }
  
  .info-header h3 {
    font-size: 1.1rem;
  }
  
  .info-body {
    font-size: 0.9rem;
  }
  
  /* Component grid - smaller cards */
  .component-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .component-card {
    padding: 1rem;
  }
  
  .component-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }
  
  .component-card p {
    font-size: 0.85rem;
    line-height: 1.4;
  }
  
  /* Execution trace - compact */
  .trace-section {
    padding: 1.25rem;
  }
  
  .trace-header h3 {
    font-size: 1.1rem;
  }
  
  .trace-container {
    max-height: 300px;
  }
  
  .trace-table {
    font-size: 0.8rem;
  }
  
  .trace-step {
    padding: 0.6rem;
  }
  
  /* Timeline - compact */
  .timeline-wrapper {
    gap: 1rem;
  }
  
  .timeline-header h3 {
    font-size: 1.1rem;
  }
  
  .generation-info {
    padding: 1rem;
  }
  
  .generation-title {
    font-size: 1.25rem;
  }
  
  .generation-subtitle {
    font-size: 0.85rem;
  }
  
  /* Microfact cards - smaller */
  .microfact-card {
    padding: 1.25rem;
    max-width: 100%;
  }
  
  .microfact-card h3 {
    font-size: 1.1rem;
  }
  
  .microfact-card p {
    font-size: 0.9rem;
  }
  
  /* Footer */
  .footer {
    padding: 2rem 1rem;
  }
  
  .footer-name {
    font-size: 1.1rem;
  }
  
  .footer-info {
    font-size: 0.9rem;
  }
  
  .footer-license {
    font-size: 0.85rem;
    margin-top: 1rem;
    padding-top: 1rem;
  }
  
  /* Navbar mobile improvements */
  .navbar {
    padding: 0.75rem 1rem;
  }
  
  .navbar-brand {
    font-size: 1.1rem;
  }
  
  .brand-icon {
    width: 24px;
    height: 24px;
  }
  
  /* Theory section mobile */
  .theory-item summary {
    font-size: 1rem;
    padding: 0.75rem;
  }
  
  .instruction-table {
    font-size: 0.8rem;
  }
  
  .code-block {
    font-size: 0.75rem;
    padding: 0.75rem;
  }
}

/* Extra small devices (phones, less than 480px) */
@media (max-width: 0px) {
  /* Global spacing reduction */
  section.section {
    padding: 1.5rem 0.75rem !important;
    margin-bottom: 1.5rem;
  }
  
  main {
    gap: 1.5rem !important;
    padding: 0 0.75rem 4rem !important;
  }
  
  /* Typography adjustments */
  body {
    font-size: 14px;
  }
  
  h1 {
    font-size: 1.6rem;
  }
  
  h2 {
    font-size: 1.3rem;
  }
  
  h3 {
    font-size: 1.1rem;
  }
  
  /* Hero section - very compact */
  .hero {
    padding: 2rem 1rem !important;
    min-height: auto;
  }
  
  .hero h1 {
    font-size: 1.5rem;
    line-height: 1.2;
  }
  
  .hero p {
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
  }
  
  .hero-actions {
    gap: 0.5rem;
  }
  
  .hero-actions .cta,
  .hero-actions .ghost {
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
  }
  
  /* Section headers - very compact */
  .section-header {
    padding: 0 0 1rem 0;
  }
  
  .section-header h2 {
    font-size: 1.3rem;
    margin-bottom: 0.4rem;
  }
  
  .section-header p {
    font-size: 0.85rem;
    line-height: 1.4;
  }
  
  /* Buttons - compact */
  .cta, .ghost {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
  
  /* Control panel - very compact */
  .control-bar {
    padding: 0.75rem;
    gap: 0.75rem;
  }
  
  .control-row {
    gap: 0.4rem;
  }
  
  .control-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .sim-status {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
  }
  
  .status-dot {
    width: 8px;
    height: 8px;
  }
  
  /* Info panel - very compact */
  .info-panel {
    padding: 1rem;
    max-height: 350px;
  }
  
  .info-header h3 {
    font-size: 1rem;
  }
  
  .info-body {
    font-size: 0.85rem;
    line-height: 1.4;
  }
  
  .info-metrics dl {
    gap: 0.75rem;
  }
  
  .info-metrics dt {
    font-size: 0.75rem;
  }
  
  .info-metrics dd {
    font-size: 0.9rem;
  }
  
  /* Component grid - very compact */
  .component-grid {
    gap: 0.75rem;
  }
  
  .component-card {
    padding: 0.85rem;
  }
  
  .component-card h3 {
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
  }
  
  .component-card p {
    font-size: 0.8rem;
    line-height: 1.3;
  }
  
  /* Execution trace - very compact */
  .trace-section {
    padding: 1rem;
  }
  
  .trace-header h3 {
    font-size: 1rem;
  }
  
  .trace-container {
    max-height: 250px;
  }
  
  .trace-table {
    font-size: 0.75rem;
  }
  
  .trace-step {
    padding: 0.5rem;
  }
  
  /* Timeline - very compact */
  .timeline-wrapper {
    gap: 0.75rem;
  }
  
  .generation-info {
    padding: 0.85rem;
  }
  
  .generation-title {
    font-size: 1.1rem;
  }
  
  .generation-subtitle {
    font-size: 0.8rem;
  }
  
  .generation-description {
    font-size: 0.85rem;
  }
  
  /* Microfact cards - very compact */
  .microfact-card {
    padding: 1rem;
  }
  
  .microfact-card h3 {
    font-size: 1rem;
  }
  
  .microfact-card p {
    font-size: 0.85rem;
    line-height: 1.4;
  }
  
  /* Legend - compact */
  .legend-panel {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .legend-panel span {
    font-size: 0.8rem;
  }
  
  .legend-dot {
    width: 10px;
    height: 10px;
  }
  
  /* Diagram - keep hidden on extra small */
  .diagram-canvas {
    display: none;
  }
  
  /* Mobile notice - more compact */
  .simulation-layout::before {
    padding: 0.75rem;
    font-size: 0.8rem;
  }
  
  /* Info panel - prioritize on mobile */
  .info-panel {
    order: -1;
  }
  
  /* VVM specific */
  .vvm-code-editor {
    font-size: 0.8rem;
  }
  
  .vvm-line-numbers {
    font-size: 0.75rem;
  }
  
  .vvm-btn {
    padding: 0.5rem 0.9rem;
    font-size: 0.8rem;
  }
  
  .vvm-memory-cell {
    font-size: 0.7rem;
    padding: 0.3rem;
  }
  
  .vvm-register {
    padding: 0.6rem;
  }
  
  .vvm-register-label {
    font-size: 0.7rem;
  }
  
  .vvm-register-value {
    font-size: 0.95rem;
  }
  
  /* Theory tables */
  .instruction-table {
    font-size: 0.75rem;
  }
  
  .instruction-table td,
  .instruction-table th {
    padding: 0.4rem;
  }
  
  /* Footer */
  .footer-name {
    font-size: 1rem;
  }
  
  .footer-info {
    font-size: 0.85rem;
    flex-wrap: wrap;
  }
  
  .footer-info svg {
    width: 18px;
    height: 18px;
  }
  
  .footer-license {
    font-size: 0.8rem;
  }
  
  .footer-copyright {
    font-size: 0.75rem;
  }
  
  /* Component cards */
  .component-card {
    padding: 1rem;
  }
  
  .component-card h3 {
    font-size: 1rem;
  }
  
  .component-card p {
    font-size: 0.85rem;
  }
  
  /* Execution trace */
  .trace-table {
    font-size: 0.75rem;
  }
  
  .trace-step {
    padding: 0.5rem;
  }
}

/* Always show diagram (desktop version on all devices) */
.diagram-canvas {
  display: block !important;
}

.simulation-layout::before {
  display: none !important;
}

/* Landscape mobile optimization */
@media (max-width: 900px) and (max-height: 500px) and (orientation: landscape) {
  .hero {
    padding: 1.5rem 1rem;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .section-header {
    padding: 1rem 0;
  }
  
  /* Keep diagram hidden in landscape mobile */
  .diagram-canvas {
    display: none;
  }
  
  .vvm-container {
    max-height: 80vh;
  }
  
  .vvm-code-editor {
    max-height: 200px;
  }
  
  .vvm-memory-grid {
    max-height: 250px;
  }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .control-btn,
  .vvm-btn,
  .cta,
  .ghost {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-link {
    min-height: 44px;
    padding: 0.75rem 1rem;
  }
  
  .theory-item summary {
    min-height: 48px;
    padding: 1rem;
  }
  
  /* Remove hover effects on touch */
  .control-btn:hover,
  .vvm-btn:hover {
    transform: none;
  }
  
  /* Better tap highlighting */
  * {
    -webkit-tap-highlight-color: rgba(46, 106, 219, 0.2);
  }
}