/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
  --bg-hsl: 45 25% 96%;
  --fg-hsl: 30 15% 10%;
  --card-hsl: 46 30% 97%;
  --card-solid-hsl: 45 22% 94%;
  --border-hsl: 30 10% 86%;
  --muted-hsl: 30 5% 45%;
  --primary-hsl: 14 75% 36%;
  --primary-hover-hsl: 14 75% 30%;
  --accent-hsl: 14 75% 36%;

  --shadow-card: 0 0 0 1px rgba(26, 24, 20, 0.04), 0 2px 4px rgba(26, 24, 20, 0.02), 0 12px 24px -4px rgba(26, 24, 20, 0.04);
  --shadow-hover: 0 0 0 1px rgba(180, 83, 9, 0.18), 0 8px 20px rgba(26, 24, 20, 0.07);
  --shadow-elevated: 0 0 0 1px rgba(26, 24, 20, 0.05), 0 4px 12px rgba(26, 24, 20, 0.04), 0 20px 40px -8px rgba(26, 24, 20, 0.06);
  --glass-bg: rgba(246, 244, 240, 0.82);
  --glass-border: rgba(30, 20, 10, 0.06);
  --glow-color: rgba(180, 83, 9, 0.05);

  --font-display: "Instrument Serif", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: all 0.35s var(--ease);
  --transition-fast: all 0.18s var(--ease);

  --header-height: 60px;
  --radius-xl: 20px;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 6px;
}

[data-theme="dark"] {
  --bg-hsl: 215 25% 9%;
  --fg-hsl: 210 20% 94%;
  --card-hsl: 215 18% 12%;
  --card-solid-hsl: 215 18% 14%;
  --border-hsl: 215 15% 20%;
  --muted-hsl: 215 10% 55%;
  --primary-hsl: 20 85% 55%;
  --primary-hover-hsl: 20 85% 50%;
  --accent-hsl: 20 85% 55%;

  --shadow-card: 0 0 0 1px rgba(255, 255, 255, 0.04), 0 4px 12px rgba(0, 0, 0, 0.3), 0 16px 32px -8px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 0 0 1px rgba(249, 115, 22, 0.18), 0 12px 28px rgba(0, 0, 0, 0.35);
  --shadow-elevated: 0 0 0 1px rgba(255, 255, 255, 0.05), 0 8px 24px rgba(0, 0, 0, 0.35), 0 24px 48px -8px rgba(0, 0, 0, 0.3);
  --glass-bg: rgba(15, 20, 28, 0.88);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glow-color: rgba(249, 115, 22, 0.08);
}

/* ==========================================================================
   BASE & RESET
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  overflow-x: hidden;
}

body {
  background-color: hsl(var(--bg-hsl));
  color: hsl(var(--fg-hsl));
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.5s var(--ease), color 0.5s var(--ease);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; height: auto; }

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* ==========================================================================
   LAYOUT & TYPOGRAPHY
   ========================================================================== */
.section-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 20px;
}

@media (min-width: 768px) {
  .section-container { padding: 72px 36px; }
}

.grid-layout { display: grid; gap: 20px; }
.cols-2 { grid-template-columns: 1fr; }
.cols-3 { grid-template-columns: 1fr; }
.cols-4 { grid-template-columns: repeat(2, 1fr); }

@media (min-width: 640px) {
  .cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .cols-2 { grid-template-columns: repeat(2, 1fr); }
  .cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .cols-4 { grid-template-columns: repeat(4, 1fr); }
}

.gap-6 { gap: 16px; }
.gap-8 { gap: 20px; }
.gap-12 { gap: 36px; }

@media (min-width: 768px) {
  .gap-6 { gap: 20px; }
  .gap-8 { gap: 24px; }
  .gap-12 { gap: 48px; }
}

.text-center { text-align: center; }
.items-center { align-items: center; }
.mb-6 { margin-bottom: 20px; }
.mb-10 { margin-bottom: 32px; }
.mb-16 { margin-bottom: 44px; }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
}

.italic { font-style: italic; }
.text-serif { font-family: var(--font-display); }
.text-accent { color: hsl(var(--accent-hsl)); }

.label-meta {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: hsl(var(--accent-hsl));
  margin-bottom: 10px;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1rem;
  color: hsl(var(--muted-hsl));
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.55;
}

@media (min-width: 768px) {
  .section-title { font-size: 2.75rem; }
}

/* Background grid overlay */
.bg-grid-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background-image:
    linear-gradient(to right, hsl(var(--border-hsl) / 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, hsl(var(--border-hsl) / 0.1) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  z-index: -10;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-primary {
  background-color: hsl(var(--primary-hsl));
  color: hsl(var(--bg-hsl));
  border: 1px solid hsl(var(--primary-hsl));
}

.btn-primary:hover {
  background-color: hsl(var(--primary-hover-hsl));
  border-color: hsl(var(--primary-hover-hsl));
  transform: translateY(-1px);
  box-shadow: 0 4px 14px hsl(var(--primary-hsl) / 0.25);
}

.btn-outline {
  border: 1px solid hsl(var(--border-hsl));
  color: hsl(var(--fg-hsl));
}

.btn-outline:hover {
  background-color: hsl(var(--card-hsl));
  border-color: hsl(var(--fg-hsl) / 0.4);
  transform: translateY(-1px);
}

.btn-block { display: flex; width: 100%; }

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.main-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  background-color: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.header-container {
  max-width: 1100px;
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .header-container { padding: 0 36px; }
}

.logo {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: hsl(var(--fg-hsl));
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.logo-accent { color: hsl(var(--accent-hsl)); }

/* Desktop nav */
.nav-menu {
  display: none;
  gap: 28px;
}

@media (min-width: 768px) {
  .nav-menu { display: flex; }
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: hsl(var(--muted-hsl));
  position: relative;
  padding: 4px 0;
  transition: var(--transition-fast);
}

.nav-link:hover { color: hsl(var(--fg-hsl)); }

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1.5px;
  background-color: hsl(var(--accent-hsl));
  transition: var(--transition-smooth);
}

.nav-link:hover::after { width: 100%; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle, .social-icon-btn {
  cursor: pointer;
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  transition: var(--transition-fast);
}

.theme-toggle:hover, .social-icon-btn:hover {
  border-color: hsl(var(--fg-hsl) / 0.4);
}

.theme-toggle svg { width: 17px; height: 17px; }
.social-icon-btn svg { width: 16px; height: 16px; }
.social-icon-btn { color: hsl(var(--muted-hsl)); }
.social-icon-btn:hover { color: hsl(var(--fg-hsl)); }

.sun-icon { display: block; }
.moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

/* Mobile hamburger */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-menu-btn:hover { border-color: hsl(var(--fg-hsl) / 0.4); }
.mobile-menu-btn svg { width: 18px; height: 18px; }

@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}

/* Mobile drawer */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
}

.mobile-nav-overlay.active { opacity: 1; visibility: visible; }

.mobile-nav-drawer {
  position: fixed;
  top: 0; right: 0;
  width: min(300px, 80vw);
  height: 100%;
  background-color: hsl(var(--bg-hsl));
  border-left: 1px solid hsl(var(--border-hsl));
  z-index: 151;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-drawer.active { transform: translateX(0); }

.mobile-nav-close {
  align-self: flex-end;
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  cursor: pointer;
  margin-bottom: 16px;
  transition: var(--transition-fast);
}

.mobile-nav-close:hover { border-color: hsl(var(--fg-hsl) / 0.4); }
.mobile-nav-close svg { width: 18px; height: 18px; }

.mobile-nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: hsl(var(--fg-hsl));
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.mobile-nav-link:hover {
  background-color: hsl(var(--card-hsl));
  color: hsl(var(--accent-hsl));
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: var(--header-height);
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
  width: 100%;
  padding-top: 40px;
  padding-bottom: 20px;
}

@media (min-width: 768px) {
  .hero-container {
    padding-top: 56px;
    padding-bottom: 32px;
  }
}

@media (min-width: 1024px) {
  .hero-container {
    grid-template-columns: 1.25fr 0.75fr;
    gap: 48px;
    padding-top: 64px;
    padding-bottom: 40px;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

@media (min-width: 768px) {
  .hero-title { font-size: 3.25rem; }
}

@media (min-width: 1024px) {
  .hero-title { font-size: 3.75rem; }
}

.hero-description {
  font-size: 1rem;
  color: hsl(var(--muted-hsl));
  margin-bottom: 28px;
  max-width: 540px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-graphic-container {
  display: flex;
  justify-content: center;
}

/* Geometric card */
.interactive-geometric-card {
  position: relative;
  width: 280px; height: 350px;
  border-radius: var(--radius-xl);
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: var(--transition-smooth);
}

@media (min-width: 768px) {
  .interactive-geometric-card {
    width: 300px; height: 370px;
  }
}

.interactive-geometric-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-hover);
  border-color: hsl(var(--accent-hsl) / 0.4);
}

.card-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 220px; height: 220px;
  background: radial-gradient(circle, var(--glow-color) 0%, transparent 70%);
  pointer-events: none;
}

.card-grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, hsl(var(--border-hsl) / 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, hsl(var(--border-hsl) / 0.15) 1px, transparent 1px);
  background-size: 20px 20px;
  mask-image: radial-gradient(circle, black, transparent 75%);
  -webkit-mask-image: radial-gradient(circle, black, transparent 75%);
  pointer-events: none;
}

.card-content-visual {
  position: relative;
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.math-node {
  position: absolute;
  border-radius: 50%;
  background-color: hsl(var(--bg-hsl));
  border: 1.5px solid hsl(var(--border-hsl));
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transition: var(--transition-smooth);
}

.main-node {
  width: 64px; height: 64px;
  border-color: hsl(var(--accent-hsl));
  border-width: 2px;
  z-index: 5;
}

.center-initials {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--accent-hsl));
  z-index: 6;
}

.sub-node { width: 24px; height: 24px; }
.node-1 { top: 38px; left: 26px; }
.node-2 { top: 52px; right: 20px; }
.node-3 { bottom: 26px; left: 85px; }

.node-connections {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  color: hsl(var(--accent-hsl) / 0.3);
  pointer-events: none;
}

.card-status-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  border-top: 1px solid hsl(var(--border-hsl));
  padding-top: 14px;
  font-size: 0.625rem;
  color: hsl(var(--muted-hsl));
  letter-spacing: 0.05em;
}

.status-indicator {
  width: 5px; height: 5px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 6px #10b981;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ==========================================================================
   ABOUT SECTION — wrapped in a surface card
   ========================================================================== */
.about-section {
  position: relative;
}

.about-section .section-container {
  /* The grid itself becomes a card */
}

.about-section .grid-layout {
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .about-section .grid-layout {
    padding: 48px 44px;
  }
}

.about-text-column { max-width: 520px; }

.prose-body p {
  margin-bottom: 16px;
  color: hsl(var(--muted-hsl));
  font-size: 0.95rem;
  line-height: 1.65;
}

.prose-body strong {
  color: hsl(var(--fg-hsl));
  font-weight: 600;
}

.about-stats-column {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stats-card {
  padding: 20px;
  background-color: hsl(var(--bg-hsl));
  border: 1px solid hsl(var(--border-hsl));
  border-radius: var(--radius-md);
  transition: var(--transition-smooth);
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.stats-card:hover {
  transform: translateY(-3px);
  border-color: hsl(var(--accent-hsl) / 0.3);
  box-shadow: var(--shadow-hover);
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 3px;
  color: hsl(var(--accent-hsl));
}

.stat-label {
  font-size: 0.775rem;
  color: hsl(var(--muted-hsl));
  line-height: 1.4;
}

/* ==========================================================================
   FOCUS PILLARS
   ========================================================================== */
.pillars-section { }

.pillar-card {
  padding: 28px 24px;
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  border-radius: var(--radius-lg);
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.pillar-card:hover {
  border-color: hsl(var(--accent-hsl) / 0.4);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.pillar-icon-container {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background-color: hsl(var(--bg-hsl));
  border: 1px solid hsl(var(--border-hsl));
  color: hsl(var(--accent-hsl));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.pillar-icon { width: 20px; height: 20px; }

.pillar-title {
  font-size: 1.2rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.pillar-desc {
  font-size: 0.85rem;
  color: hsl(var(--muted-hsl));
  line-height: 1.55;
}

/* ==========================================================================
   TERMINAL WIDGET
   ========================================================================== */
.terminal-section { }

.terminal-widget {
  max-width: 760px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  background-color: #0c0f16;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.2), 0 20px 50px -10px rgba(0,0,0,0.5);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.terminal-widget:focus-within {
  box-shadow: 0 0 0 1px rgba(249, 115, 22, 0.3), 0 20px 50px -10px rgba(249, 115, 22, 0.1);
  border-color: rgba(249, 115, 22, 0.3);
}

.terminal-header {
  background-color: #07090e;
  padding: 11px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.terminal-controls { display: flex; gap: 7px; flex-shrink: 0; }

.control-dot { width: 10px; height: 10px; border-radius: 50%; }
.control-dot.close { background-color: #ef4444; }
.control-dot.minimize { background-color: #eab308; }
.control-dot.expand { background-color: #22c55e; }

.terminal-title {
  font-size: 0.725rem;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.terminal-connection-status {
  font-size: 0.625rem;
  color: #f97316;
  opacity: 0.8;
  white-space: nowrap;
  flex-shrink: 0;
}

.terminal-body {
  height: 280px;
  overflow-y: auto;
  padding: 20px;
  font-size: 0.8125rem;
  color: #e5e7eb;
  line-height: 1.55;
}

@media (min-width: 768px) {
  .terminal-body { height: 300px; padding: 24px; }
}

.terminal-output-line {
  margin-bottom: 5px;
  word-break: break-all;
  white-space: pre-wrap;
}

.terminal-system-line { color: #f97316; }
.terminal-accent-line { color: #fb923c; }

.terminal-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 20px;
  border-top: 1px solid rgba(255,255,255,0.04);
  background-color: #07090e;
}

@media (min-width: 768px) {
  .terminal-input-row { padding: 13px 24px; }
}

.prompt-symbol { color: #f97316; font-weight: 700; }

#terminal-input {
  flex-grow: 1;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.terminal-shortcuts {
  padding: 9px 20px 11px;
  background-color: #05070a;
  border-top: 1px solid rgba(255,255,255,0.03);
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .terminal-shortcuts { padding: 9px 24px 11px; }
}

.shortcut-btn {
  font-size: 0.675rem;
  padding: 4px 10px;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition-fast);
}

.shortcut-btn:hover {
  background-color: rgba(249, 115, 22, 0.12);
  border-color: rgba(249, 115, 22, 0.4);
  color: #f97316;
}

/* ==========================================================================
   TIMELINE — items as individual cards
   ========================================================================== */
.journey-section { }

.timeline-container {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  padding-left: 28px;
}

.timeline-container::before {
  content: "";
  position: absolute;
  top: 0; left: 7px;
  width: 1px; height: 100%;
  background: linear-gradient(to bottom, hsl(var(--accent-hsl) / 0.3), hsl(var(--border-hsl)), hsl(var(--border-hsl) / 0.2));
}

.timeline-item {
  position: relative;
  padding-bottom: 24px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  top: 20px; left: -28px;
  width: 13px; height: 13px;
  border-radius: 50%;
  background-color: hsl(var(--bg-hsl));
  border: 2px solid hsl(var(--accent-hsl));
  box-shadow: 0 0 0 3px hsl(var(--bg-hsl));
  z-index: 2;
  transition: var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  background-color: hsl(var(--accent-hsl));
  box-shadow: 0 0 0 3px hsl(var(--bg-hsl)), 0 0 8px hsl(var(--accent-hsl) / 0.3);
}

.timeline-content {
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px 24px;
  transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
  box-shadow: var(--shadow-hover);
  border-color: hsl(var(--accent-hsl) / 0.3);
}

.timeline-header {
  font-size: 0.6875rem;
  font-weight: 600;
  color: hsl(var(--accent-hsl));
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}

.timeline-title {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 0.875rem;
  color: hsl(var(--muted-hsl));
  line-height: 1.55;
}

/* ==========================================================================
   SPEAKING & EDITORIAL CARDS
   ========================================================================== */
.speaking-section { }

.editorial-card {
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

.editorial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: hsl(var(--accent-hsl) / 0.35);
}

.editorial-category { margin-bottom: 14px; }

.editorial-title {
  font-size: 1.45rem;
  margin-bottom: 12px;
  line-height: 1.25;
}

.editorial-excerpt {
  font-size: 0.875rem;
  color: hsl(var(--muted-hsl));
  margin-bottom: 24px;
  flex-grow: 1;
  line-height: 1.55;
}

.editorial-meta {
  font-size: 0.625rem;
  font-weight: 600;
  color: hsl(var(--muted-hsl));
  letter-spacing: 0.06em;
  border-top: 1px solid hsl(var(--border-hsl) / 0.6);
  padding-top: 14px;
}

/* ==========================================================================
   CONTACT SECTION — form in a card surface
   ========================================================================== */
.contact-section { }

.contact-text {
  color: hsl(var(--muted-hsl));
  font-size: 0.95rem;
  margin-bottom: 28px;
  max-width: 460px;
  line-height: 1.6;
}

.direct-contact-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-detail-item {
  border-bottom: 1px solid hsl(var(--border-hsl));
  padding-bottom: 12px;
}

.detail-label {
  font-size: 0.65rem;
  color: hsl(var(--muted-hsl));
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 3px;
}

.detail-value {
  font-size: 1.05rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

a.detail-value:hover { color: hsl(var(--accent-hsl)); }

.executive-contact-form {
  background-color: hsl(var(--card-hsl));
  border: 1px solid hsl(var(--border-hsl));
  padding: 28px 24px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}

@media (min-width: 768px) {
  .executive-contact-form { padding: 36px 32px; }
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 0;
}

@media (min-width: 480px) {
  .form-row { grid-template-columns: repeat(2, 1fr); }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-group label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: hsl(var(--muted-hsl));
}

.form-group input, .form-group textarea {
  border: 1px solid hsl(var(--border-hsl));
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.875rem;
  background-color: hsl(var(--bg-hsl));
  transition: var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
  border-color: hsl(var(--accent-hsl));
  box-shadow: 0 0 0 3px hsl(var(--accent-hsl) / 0.08);
}

.form-feedback {
  margin-top: 14px;
  font-size: 0.75rem;
  text-align: center;
  transition: var(--transition-fast);
  min-height: 1.2em;
}

.form-feedback.success { color: #10b981; }
.form-feedback.error { color: #ef4444; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
  background-color: hsl(var(--bg-hsl));
  border-top: 1px solid hsl(var(--border-hsl));
}

.main-footer .section-container {
  padding-top: 32px;
  padding-bottom: 32px;
}

.footer-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .footer-container { flex-direction: row; }
}

.footer-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

@media (min-width: 768px) {
  .footer-left { align-items: flex-start; }
}

.footer-copyright {
  font-size: 0.625rem;
  color: hsl(var(--muted-hsl));
  letter-spacing: 0.03em;
}

.footer-right {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  font-size: 0.8125rem;
  color: hsl(var(--muted-hsl));
  transition: var(--transition-fast);
}

.footer-link:hover { color: hsl(var(--fg-hsl)); }

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-slide-up {
  animation: slideUp 0.7s var(--ease) forwards;
}

.animate-fade-in {
  animation: fadeIn 0.7s var(--ease) forwards;
}

.animate-fade-in-delayed {
  opacity: 0;
  animation: fadeIn 0.7s var(--ease) 0.25s forwards;
}

/* Terminal scrollbar */
.terminal-body::-webkit-scrollbar { width: 4px; }
.terminal-body::-webkit-scrollbar-track { background: transparent; }
.terminal-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}
.terminal-body::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}