/* ============================================
   SHREYAK KUMAR — PERSONAL WEBSITE
   Design system based on PERSONAL_WEBSITE_GUIDELINES.md
   ============================================ */

/* --- DESIGN TOKENS (dark theme — default) --- */
:root {
  /* Background */
  --bg-base:     #0A0A0F;
  --bg-surface:  #111118;
  --bg-elevated: #1A1A24;
  --bg-subtle:   #22222E;

  /* Text */
  --text-primary:   #F0F0F5;
  --text-secondary: #9898A8;
  --text-tertiary:  #5A5A6E;
  --text-disabled:  #3A3A4A;

  /* Accent */
  --accent-primary: #7C6AF7;
  --accent-glow:    #9D8FF9;
  --accent-subtle:  #1E1A38;

  /* Teal */
  --teal-accent: #2DD4BF;
  --teal-subtle: #0F2926;

  /* Borders */
  --border-default: #2A2A38;
  --border-subtle:  #1E1E2A;
  --border-focus:   #7C6AF7;

  /* Semantic */
  --status-success: #34D399;
  --status-warning: #FBBF24;
  --status-error:   #F87171;

  /* Component-specific (avoids hardcoded values) */
  --mobile-header-bg: rgba(10, 10, 15, 0.85);
  --terminal-bg:      #0D0D14;

  /* Typography */
  --font-display: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'Geist Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing */
  --space-4:   4px;
  --space-8:   8px;
  --space-12:  12px;
  --space-16:  16px;
  --space-20:  20px;
  --space-24:  24px;
  --space-28:  28px;
  --space-32:  32px;
  --space-40:  40px;
  --space-48:  48px;
  --space-64:  64px;
  --space-80:  80px;
  --space-96:  96px;
  --space-128: 128px;
  --space-160: 160px;

  /* Motion */
  --dur-fast:   150ms;
  --dur-normal: 250ms;
  --dur-slow:   400ms;
  --dur-crawl:  600ms;

  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:      cubic-bezier(0, 0, 0.2, 1);
  --ease-in:       cubic-bezier(0.4, 0, 1, 1);

  /* Layout */
  --sidebar-width:    380px;
  --content-max:      720px;
  --grid-margin:      clamp(1.5rem, 5vw, 4rem);
  --section-gap:      clamp(80px, 12vw, 160px);
}

/* --- LIGHT THEME OVERRIDES --- */
:root[data-theme="light"] {
  /* Background */
  --bg-base:     #F8F7F4;
  --bg-surface:  #EFEFED;
  --bg-elevated: #E5E4E2;
  --bg-subtle:   #DDDCDA;

  /* Text */
  --text-primary:   #1A1A1A;
  --text-secondary: #555555;
  --text-tertiary:  #888888;
  --text-disabled:  #BBBBBB;

  /* Accent (purple stays the same — it works on both themes) */
  --accent-subtle:  #EDE9FF;

  /* Teal */
  --teal-subtle: #DFFAF6;

  /* Borders */
  --border-default: #E0E0E0;
  --border-subtle:  #EBEBEB;

  /* Semantic */
  --status-success: #16A34A;
  --status-warning: #B45309;
  --status-error:   #DC2626;

  /* Component-specific */
  --mobile-header-bg: rgba(248, 247, 244, 0.92);
  --terminal-bg:      #1A1A24;
}

/* --- SMOOTH THEME TRANSITIONS --- */
/* Applied broadly so the whole page animates when the theme switches.
   We keep this low-specificity so individual component transitions still override. */
body,
.sidebar,
.main-content,
.mobile-header,
.mobile-nav-overlay,
.mobile-nav-link,
.exp-card,
.project-card,
.stat-card,
.edu-card,
.tag,
.footer,
.project-terminal,
.terminal-bar,
.btn-secondary,
.social-link,
.theme-toggle,
.skip-link,
.section-header::after {
  transition:
    background-color var(--dur-slow) var(--ease-standard),
    color var(--dur-slow) var(--ease-standard),
    border-color var(--dur-slow) var(--ease-standard);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background-color: var(--bg-base);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  font-feature-settings: 'ss01', 'cv01';
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* --- SKIP LINK --- */
.skip-link {
  position: fixed;
  top: -100%;
  left: var(--space-16);
  z-index: 999;
  padding: var(--space-8) var(--space-16);
  background: var(--accent-primary);
  color: white;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-16); }

/* --- LAYOUT (two-column sticky) --- */
.layout {
  display: flex;
  min-height: 100vh;
  max-width: 1280px;
  margin: 0 auto;
}

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: var(--space-64) var(--space-48) var(--space-48);
  border-right: 1px solid var(--border-subtle);
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: var(--space-48);
}

/* MAIN CONTENT */
.main-content {
  flex: 1;
  min-width: 0;
  padding: var(--space-96) var(--space-64) var(--space-96) var(--space-80);
}

/* --- MOBILE HEADER (hidden on desktop) --- */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  padding: 0 var(--space-24);
  background: var(--mobile-header-bg);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  align-items: center;
  justify-content: space-between;
}

.mobile-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* Group the right-side controls in mobile header */
.mobile-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-8);
  border-radius: 6px;
  transition: background var(--dur-fast) var(--ease-standard);
}
.hamburger:hover { background: var(--bg-elevated); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--dur-normal) var(--ease-standard), opacity var(--dur-normal) var(--ease-standard);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- MOBILE NAV OVERLAY --- */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--bg-base);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-slow) var(--ease-standard);
}
.mobile-nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-close {
  position: absolute;
  top: var(--space-20);
  right: var(--space-24);
  padding: var(--space-8);
  color: var(--text-secondary);
  border-radius: 6px;
  transition: color var(--dur-fast), background var(--dur-fast);
}
.mobile-nav-close:hover { color: var(--text-primary); background: var(--bg-elevated); }

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.mobile-nav-link {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  color: var(--text-tertiary);
  letter-spacing: -0.03em;
  padding: var(--space-8) var(--space-24);
  transition: color var(--dur-normal) var(--ease-standard);
}
.mobile-nav-link:hover { color: var(--text-primary); }

/* --- THEME TOGGLE BUTTON --- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  color: var(--text-tertiary);
  background: transparent;
  padding: 0;
  transition:
    color var(--dur-fast) var(--ease-standard),
    background-color var(--dur-fast) var(--ease-standard),
    transform var(--dur-normal) var(--ease-spring);
}
.theme-toggle:hover {
  color: var(--text-primary);
  background-color: var(--bg-elevated);
  transform: rotate(20deg) scale(1.1);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* Icon visibility: dark mode → show sun (click → go light) */
/*                  light mode → show moon (click → go dark)  */
.icon-sun  { display: block; }
.icon-moon { display: none; }

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

/* --- HERO BLOCK --- */
.hero-block {
  flex-shrink: 0;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent-primary);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-8);
  display: block;
}

.site-name {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-8);
}

.site-role {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-16);
}

.site-tagline {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  line-height: 1.6;
  max-width: 32ch;
  margin-bottom: var(--space-32);
}

/* --- BUTTONS --- */
.hero-ctas {
  display: flex;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-20);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--dur-fast) var(--ease-standard),
              color var(--dur-fast) var(--ease-standard),
              border-color var(--dur-fast) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-fast) var(--ease-standard);
}
.btn:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--accent-primary);
  color: #fff;
  box-shadow: 0 0 0 0 transparent;
}
.btn-primary:hover {
  background: var(--accent-glow);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(124, 106, 247, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
}
.btn-secondary:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-default);
  transform: translateY(-1px);
}

.btn-large {
  padding: var(--space-16) var(--space-32);
  font-size: 1rem;
  font-weight: 600;
}

/* --- DESKTOP NAV --- */
.desktop-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-8) 0;
  color: var(--text-tertiary);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--dur-normal) var(--ease-standard),
              gap var(--dur-normal) var(--ease-standard);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  gap: var(--space-24);
}
.nav-link.active { color: var(--accent-primary); }

.nav-line {
  display: block;
  height: 1px;
  width: 32px;
  background: currentColor;
  transition: width var(--dur-normal) var(--ease-standard);
  flex-shrink: 0;
}
.nav-link:hover .nav-line,
.nav-link.active .nav-line { width: 48px; }

/* --- SOCIAL LINKS --- */
.social-links {
  display: flex;
  gap: var(--space-16);
  margin-top: auto;
  align-items: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  color: var(--text-tertiary);
  transition: color var(--dur-fast) var(--ease-standard),
              background var(--dur-fast) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard);
}
.social-link:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
  transform: translateY(-2px);
}
.social-link:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 3px; }

/* --- SECTIONS --- */
.section {
  margin-bottom: var(--section-gap);
  max-width: var(--content-max);
}

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  margin-bottom: var(--space-48);
}

.section-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent-primary);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* Decorative line after section heading */
.section-header::after {
  content: '';
  display: block;
  flex: 1;
  height: 1px;
  background: var(--border-default);
  max-width: 200px;
}

/* --- ABOUT SECTION --- */
.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-48);
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}

.body-lg {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 65ch;
}

.inline-link {
  color: var(--accent-primary);
  position: relative;
  background: linear-gradient(var(--accent-primary), var(--accent-primary)) no-repeat;
  background-size: 0% 1px;
  background-position: left bottom;
  transition: background-size var(--dur-normal) var(--ease-standard), color var(--dur-fast);
}
.inline-link:hover {
  color: var(--accent-glow);
  background-size: 100% 1px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-16);
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: var(--space-20) var(--space-16);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--dur-normal), transform var(--dur-normal), background-color var(--dur-slow);
}
.stat-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
}

/* --- EXPERIENCE SECTION --- */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.exp-card {
  padding: var(--space-24);
  border-radius: 12px;
  border: 1px solid transparent;
  transition: background var(--dur-normal) var(--ease-standard),
              border-color var(--dur-normal) var(--ease-standard),
              transform var(--dur-normal) var(--ease-standard);
}
.exp-card:hover {
  background: var(--bg-surface);
  border-color: var(--border-default);
  transform: translateX(4px);
}

.exp-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
  flex-wrap: wrap;
}

.exp-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.exp-company {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--dur-fast);
}
a.exp-company:hover { color: var(--accent-primary); }

.exp-role {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.exp-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  padding-top: 2px;
  flex-shrink: 0;
}

.exp-bullets {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
  padding-left: var(--space-16);
}

.exp-bullets li {
  position: relative;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-left: var(--space-16);
}
.exp-bullets li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-size: 0.75rem;
  top: 3px;
}
.exp-bullets li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- TAGS (shared) --- */
.exp-tags,
.project-tags,
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border: 1px solid var(--border-default);
  transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast);
}

.tag-accent {
  color: var(--accent-primary);
  border-color: var(--accent-subtle);
  background: var(--accent-subtle);
}

/* --- PROJECTS SECTION --- */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}

/* Featured project card */
.project-featured {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: var(--space-32);
  transition: border-color var(--dur-normal) var(--ease-standard),
              transform var(--dur-normal) var(--ease-standard),
              box-shadow var(--dur-normal) var(--ease-standard),
              background-color var(--dur-slow) var(--ease-standard);
}
.project-featured:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124, 106, 247, 0.12);
}

.project-featured-badge {
  margin-bottom: var(--space-20);
}

.mono-small {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-primary);
  letter-spacing: 0.05em;
}

.project-featured-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  align-items: start;
}

.project-name-featured {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-12);
}

.project-desc-lg {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-16);
  max-width: 55ch;
}

.project-links { margin-top: var(--space-20); }

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  background: var(--accent-subtle);
  color: var(--accent-primary);
  border: 1px solid rgba(124, 106, 247, 0.3);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
}
.project-link-btn:hover {
  background: rgba(124, 106, 247, 0.2);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

/* Terminal component */
.project-terminal-wrap {
  display: flex;
  align-items: flex-start;
}

.project-terminal {
  width: 100%;
  background: var(--terminal-bg);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  transition: background-color var(--dur-slow) var(--ease-standard),
              border-color var(--dur-slow) var(--ease-standard);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-16);
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--dur-slow) var(--ease-standard);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }

.terminal-title {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-left: var(--space-8);
}

.terminal-body {
  padding: var(--space-16) var(--space-20);
  display: flex;
  flex-direction: column;
  gap: 5px;
  line-height: 1.6;
}

.t-prompt { color: var(--accent-primary); }
.t-cmd    { color: var(--text-primary); }
.t-dim    { color: var(--text-tertiary); }
.t-accent { color: var(--accent-glow); }
.t-success { color: var(--status-success); }
.t-sep    { color: var(--border-default); letter-spacing: 0.02em; }

/* Small project cards */
.projects-small-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-16);
}

.project-small {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: var(--space-24);
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  transition: border-color var(--dur-normal) var(--ease-standard),
              transform var(--dur-normal) var(--ease-standard),
              box-shadow var(--dur-normal) var(--ease-standard),
              background-color var(--dur-slow) var(--ease-standard);
}
.project-small:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124, 106, 247, 0.08);
}

.project-card-icons {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.folder-icon { color: var(--accent-primary); }

.project-name-sm {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.project-desc-sm {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.projects-footer {
  margin-top: var(--space-8);
  display: flex;
  justify-content: center;
}

.archive-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  color: var(--accent-primary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: gap var(--dur-normal) var(--ease-standard), color var(--dur-fast);
}
.archive-link:hover {
  color: var(--accent-glow);
  gap: var(--space-12);
}

/* Small cards row below featured */
.projects-grid > .project-small:not(.project-featured) {
  /* handled individually */
}

/* 3-col grid for small project cards */
.project-small-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-16);
}

/* --- SKILLS SECTION --- */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32) var(--space-40);
}

.skill-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.skill-group-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* --- EDUCATION SECTION --- */
.edu-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: var(--space-24) var(--space-28);
  transition: border-color var(--dur-normal), transform var(--dur-normal), background-color var(--dur-slow);
}
.edu-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.edu-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-16);
}

.edu-school {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

.edu-degree {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.edu-location {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.edu-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 2px;
}

/* --- CONTACT SECTION --- */
.section-contact {
  max-width: none;
  padding: var(--space-80) 0 var(--space-48);
}

.contact-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-24);
  max-width: 600px;
}

.contact-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.contact-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 48ch;
}

/* --- FOOTER --- */
.footer {
  padding: var(--space-48) 0 var(--space-24);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-text {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.footer-meta {
  font-size: 0.8125rem;
  color: var(--text-disabled);
}

.footer-link {
  color: var(--text-tertiary);
  transition: color var(--dur-fast);
}
.footer-link:hover { color: var(--accent-primary); }

/* --- REVEAL ANIMATIONS --- */
.reveal-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-crawl) var(--ease-out),
              transform var(--dur-crawl) var(--ease-out);
}

.reveal-item.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- GRADIENT ORBS (decorative) --- */
.layout::before {
  content: '';
  position: fixed;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 106, 247, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* --- REDUCED MOTION --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-item {
    opacity: 1;
    transform: none;
  }
}

/* --- RESPONSIVE: TABLET (768–1024px) --- */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 300px;
  }

  .main-content {
    padding: var(--space-80) var(--space-48) var(--space-80) var(--space-48);
  }

  .project-featured-layout {
    grid-template-columns: 1fr;
  }

  .project-terminal-wrap { display: none; }

  .skills-grid { grid-template-columns: 1fr 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}

/* --- RESPONSIVE: MOBILE (<768px) --- */
@media (max-width: 768px) {
  body { padding-top: 64px; }

  .mobile-header { display: flex; }
  .mobile-nav-overlay { display: flex; }

  .layout { flex-direction: column; }

  .sidebar {
    display: none; /* hidden on mobile — replaced by mobile header + overlay */
  }

  .main-content {
    padding: var(--space-48) var(--space-24) var(--space-64);
  }

  .section { max-width: 100%; }

  .section-header::after { display: none; }

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

  .skills-grid { grid-template-columns: 1fr; }

  .project-featured-layout { grid-template-columns: 1fr; }
  .project-terminal-wrap { display: none; }

  .exp-header { flex-direction: column; gap: var(--space-4); }
  .exp-date { align-self: flex-start; }

  .edu-header { flex-direction: column; gap: var(--space-8); }

  .contact-inner { align-items: center; text-align: center; }
  .contact-body { max-width: 100%; }

  .hero-ctas { justify-content: center; }
}

@media (max-width: 480px) {
  .about-stats { grid-template-columns: 1fr 1fr; }
  .stat-card { padding: var(--space-16); }
  .stat-number { font-size: 1.25rem; }
  .project-small-row { grid-template-columns: 1fr; }
}