/* ==========================================================================
   Navaneeth Krishnan — Portfolio Stylesheet
   Design tokens: deep-space dark theme, blue→purple→cyan gradient accents,
   glassmorphism cards, Sora (display) + Inter (body) + JetBrains Mono (data)
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Dark theme (default) */
  --bg-0: #070912;
  --bg-1: #0a0e1a;
  --bg-2: #0f1424;
  --bg-3: #141a30;

  --text-1: #eef1fa;
  --text-2: #a3adcc;
  --text-3: #6b7494;

  --glass-bg: rgba(255, 255, 255, 0.045);
  --glass-bg-strong: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.1);

  --accent-blue: #4f7cff;
  --accent-purple: #9d4fff;
  --accent-cyan: #4fd8ff;

  --gradient-primary: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  --gradient-full: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 55%, var(--accent-cyan) 100%);
  --gradient-text: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue) 45%, var(--accent-purple) 100%);

  --shadow-glow: 0 8px 40px rgba(79, 124, 255, 0.18);
  --shadow-card: 0 10px 30px rgba(3, 5, 15, 0.35);

  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --nav-h: 76px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Light theme overrides */
html[data-theme='light'] {
  --bg-0: #f5f6fb;
  --bg-1: #fbfbfe;
  --bg-2: #ffffff;
  --bg-3: #eef0f9;

  --text-1: #10132a;
  --text-2: #454e6e;
  --text-3: #767f9e;

  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(20, 25, 60, 0.08);

  --shadow-glow: 0 8px 40px rgba(79, 124, 255, 0.12);
  --shadow-card: 0 10px 30px rgba(30, 35, 70, 0.08);
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

body {
  font-family: var(--font-body);
  background: var(--bg-1);
  color: var(--text-1);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

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

::selection { background: var(--accent-purple); color: #fff; }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--gradient-primary); border-radius: 10px; }

/* ---------- Utility ---------- */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Page Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-0);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
body.loaded .loader { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-node { width: 64px; height: 64px; }
.loader-node .node { fill: var(--accent-cyan); animation: pulseNode 1.4s ease-in-out infinite; }
.loader-node .n2 { animation-delay: 0.15s; }
.loader-node .n3 { animation-delay: 0.3s; fill: var(--accent-purple); }
.loader-node .n4 { animation-delay: 0.45s; }
.loader-node .n5 { animation-delay: 0.6s; }
.loader-node .edge { stroke: var(--accent-blue); stroke-width: 1; opacity: 0.5; }

@keyframes pulseNode {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.25); transform-origin: center; }
}

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-3);
  text-transform: uppercase;
}

/* ---------- Scroll Progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--gradient-full);
  z-index: 1100;
  transition: width 0.1s linear;
}

/* ---------- Particles ---------- */
#particles-js {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition), height var(--transition);
}
.navbar.scrolled {
  background: color-mix(in srgb, var(--bg-1) 78%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--glass-border);
  height: 66px;
}

.nav-inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-1);
}
.logo-bracket { color: var(--accent-purple); }

.nav-links {
  display: flex; gap: 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 6px;
  border-radius: 999px;
  backdrop-filter: blur(12px);
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 8px 16px;
  border-radius: 999px;
  transition: color var(--transition), background var(--transition);
  position: relative;
}
.nav-link:hover { color: var(--text-1); }
.nav-link.active { color: #fff; background: var(--gradient-primary); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  transition: transform var(--transition), background var(--transition);
}
.theme-toggle:hover { transform: rotate(20deg); background: var(--glass-bg-strong); }

.nav-burger {
  display: none;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  flex-direction: column; align-items: center; justify-content: center;
  gap: 5px;
}
.nav-burger span {
  width: 18px; height: 2px; background: var(--text-1);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(157, 79, 255, 0.35); }

.btn-ghost {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
}
.btn-ghost:hover { background: var(--glass-bg-strong); transform: translateY(-3px); }

.btn-block { width: 100%; justify-content: center; }

.btn-sm {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 999px;
  background: var(--gradient-primary);
  color: #fff;
  transition: transform var(--transition), opacity var(--transition);
}
.btn-sm:hover { transform: translateY(-2px); }
.btn-sm-ghost {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-2);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  padding: 140px 24px 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: -20% -20% auto -20%; height: 70%;
  background: radial-gradient(60% 60% at 50% 0%, rgba(79, 124, 255, 0.18), transparent 70%),
              radial-gradient(40% 50% at 80% 20%, rgba(157, 79, 255, 0.14), transparent 70%);
  z-index: 0; pointer-events: none;
}

.hero-inner { position: relative; z-index: 2; max-width: 760px; }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 7vw, 5rem);
  letter-spacing: -0.03em;
  line-height: 1.02;
  background: var(--gradient-full);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 14px;
}

.hero-typed-wrap {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.15rem, 3vw, 1.7rem);
  color: var(--text-2);
  margin-bottom: 26px;
  min-height: 2.4em;
}
#typed { color: var(--text-1); }
.typed-cursor { color: var(--accent-purple); animation: blink 0.9s infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-2);
  font-size: 1.02rem;
  max-width: 560px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 34px;
}

.hero-socials { display: flex; gap: 16px; justify-content: center; }
.hero-socials a {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 1.1rem;
  transition: transform var(--transition), color var(--transition), border-color var(--transition);
}
.hero-socials a:hover { transform: translateY(-4px); color: var(--accent-cyan); border-color: var(--accent-cyan); }

.scroll-cue {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
  animation: floatY 2.2s ease-in-out infinite;
}
@keyframes floatY { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ---------- Sections ---------- */
.section { position: relative; padding: 120px 24px; }
.section-alt { background: var(--bg-2); }
.section-inner { max-width: 1160px; margin: 0 auto; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-purple);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  letter-spacing: -0.02em;
  margin-bottom: 56px;
  max-width: 640px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 64px;
  align-items: start;
}

.about-visual { position: relative; }
.about-photo-frame {
  position: relative;
  width: 100%; aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-3);
  border: 1px solid var(--glass-border);
}
.about-photo-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem;
  color: var(--text-3);
  background: linear-gradient(160deg, rgba(79,124,255,0.12), rgba(157,79,255,0.12));
}
.about-photo-glow {
  position: absolute; inset: -30px;
  background: radial-gradient(circle at 30% 20%, rgba(157, 79, 255, 0.35), transparent 60%);
  filter: blur(30px);
  z-index: -1;
}

.about-badge {
  position: absolute; bottom: -24px; left: -24px; right: 24px;
  display: flex; align-items: center; gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}
.about-badge i { font-size: 1.4rem; color: var(--accent-cyan); }
.about-badge strong { display: block; font-size: 0.88rem; }
.about-badge span { display: block; font-size: 0.76rem; color: var(--text-3); }

.about-content p { color: var(--text-2); margin-bottom: 18px; }
.about-content strong { color: var(--text-1); }

.about-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  margin: 32px 0;
}
.stat-card {
  padding: 20px 16px;
  border-radius: var(--radius-md);
  text-align: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-size: 0.76rem; color: var(--text-3); }

.about-timeline { margin-top: 8px; }
.mini-timeline-item {
  display: flex; gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--glass-border);
}
.mini-timeline-item:first-child { border-top: none; }
.mini-timeline-item .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--gradient-primary);
  margin-top: 6px; flex-shrink: 0;
}
.mini-timeline-item strong { font-size: 0.85rem; }
.mini-timeline-item p { font-size: 0.85rem; color: var(--text-3); margin-top: 2px; }

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.skill-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  transform: translateY(-6px);
  border-color: rgba(157, 79, 255, 0.4);
  box-shadow: var(--shadow-glow);
}

.skill-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.skill-card-head i {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 1rem;
}
.skill-card-head h3 { font-family: var(--font-display); font-size: 1.05rem; }

.skill-bars li { margin-bottom: 16px; }
.skill-bars li:last-child { margin-bottom: 0; }
.skill-row { display: flex; justify-content: space-between; font-size: 0.82rem; margin-bottom: 6px; color: var(--text-2); }
.bar { height: 6px; border-radius: 999px; background: var(--bg-3); overflow: hidden; }
.fill {
  height: 100%; width: 0%;
  border-radius: 999px;
  background: var(--gradient-full);
  transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 26px;
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border-color: rgba(79, 124, 255, 0.4);
}

.project-media {
  height: 160px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem;
  color: #fff;
  background: linear-gradient(135deg, rgba(79,124,255,0.9), rgba(157,79,255,0.85));
  position: relative;
  overflow: hidden;
}
.project-media::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.25), transparent 60%);
}
.project-media i { position: relative; z-index: 1; }

.project-body { padding: 24px; }
.project-body h3 { font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 10px; }
.project-body p { color: var(--text-2); font-size: 0.9rem; margin-bottom: 16px; }

.project-stack { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.project-stack span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-3);
  color: var(--accent-cyan);
  border: 1px solid var(--glass-border);
}

.project-links { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Timeline (Experience) ---------- */
.timeline { position: relative; padding-left: 44px; }
.timeline-line {
  position: absolute; left: 15px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(var(--accent-blue), var(--accent-purple), var(--accent-cyan));
  opacity: 0.4;
}
.timeline-item { position: relative; margin-bottom: 8px; }
.timeline-dot {
  position: absolute; left: -44px; top: 0;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.85rem;
  box-shadow: 0 0 0 6px var(--bg-2);
}

.timeline-card { padding: 30px; border-radius: var(--radius-lg); }
.timeline-card-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.timeline-card-head h3 { font-family: var(--font-display); font-size: 1.3rem; }
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  white-space: nowrap;
}
.timeline-org { color: var(--text-2); font-size: 0.92rem; margin-bottom: 20px; }

.exp-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.exp-tags span {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-3);
  border: 1px solid var(--glass-border);
  color: var(--text-2);
}
.exp-tags i { color: var(--accent-purple); }

.timeline-list { display: grid; gap: 12px; }
.timeline-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  color: var(--text-2);
}
.timeline-list li::before {
  content: '';
  position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--gradient-primary);
  transform: rotate(45deg);
}

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.edu-card {
  padding: 30px;
  border-radius: var(--radius-lg);
  transition: transform var(--transition), box-shadow var(--transition);
}
.edu-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.edu-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 18px;
}
.edu-date {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  margin-bottom: 10px;
}
.edu-card h3 { font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 8px; }
.edu-card p { color: var(--text-2); font-size: 0.88rem; }

/* ---------- Achievements ---------- */
.achieve-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.achieve-card {
  text-align: center;
  padding: 36px 20px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}
.achieve-card .stat-num { font-size: 2.6rem; }
.achieve-card .stat-label {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 8px; font-size: 0.85rem; color: var(--text-2);
}
.achieve-card .stat-label i { color: var(--accent-purple); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
}

.contact-info > p { color: var(--text-2); margin-bottom: 30px; max-width: 420px; }

.contact-item { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.contact-item i {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--accent-cyan);
}
.contact-item strong { display: block; font-size: 0.78rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.04em; }
.contact-item a, .contact-item span { font-size: 0.94rem; }
.contact-item a:hover { color: var(--accent-cyan); }

.contact-socials { display: flex; gap: 14px; margin: 28px 0; }
.contact-socials a {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: transform var(--transition), color var(--transition);
}
.contact-socials a:hover { transform: translateY(-4px); color: var(--accent-cyan); }

.map-placeholder {
  height: 160px;
  border-radius: var(--radius-md);
  background:
    linear-gradient(var(--bg-3), var(--bg-3)) padding-box,
    repeating-linear-gradient(45deg, rgba(79,124,255,0.08) 0 2px, transparent 2px 14px);
  border: 1px solid var(--glass-border);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  color: var(--text-3);
  font-size: 0.82rem;
}
.map-placeholder i { font-size: 1.6rem; color: var(--accent-purple); }

.contact-form { padding: 34px; border-radius: var(--radius-lg); }
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.form-row input, .form-row textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  background: var(--bg-3);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 0.92rem;
  resize: vertical;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-row input::placeholder, .form-row textarea::placeholder { color: var(--text-3); }
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(157, 79, 255, 0.18);
}

.form-status { margin-top: 14px; font-size: 0.85rem; text-align: center; min-height: 1.2em; color: var(--accent-cyan); }

/* ---------- Footer ---------- */
.footer { padding: 50px 24px 30px; background: var(--bg-0); border-top: 1px solid var(--glass-border); }
.footer-inner {
  max-width: 1160px; margin: 0 auto;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 24px; margin-bottom: 30px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-links a { font-size: 0.85rem; color: var(--text-2); }
.footer-links a:hover { color: var(--accent-cyan); }
.footer-socials { display: flex; gap: 14px; }
.footer-socials a {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}
.footer-socials a:hover { color: var(--accent-cyan); }
.footer-copy { text-align: center; font-size: 0.78rem; color: var(--text-3); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 500;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-glow);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 340px; margin: 0 auto 50px; }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    background: var(--bg-2);
    border: none;
    border-radius: 0;
    padding: 12px 24px 24px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    border-bottom: 1px solid var(--glass-border);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; }
  .nav-link { width: 100%; padding: 12px 16px; }
  .nav-burger { display: flex; }
}

@media (max-width: 640px) {
  .section { padding: 90px 20px; }
  .section-title { margin-bottom: 40px; }
  .about-badge { position: static; margin-top: 20px; }
  .hero { padding-top: 120px; }
  .timeline { padding-left: 34px; }
  .timeline-dot { left: -34px; width: 28px; height: 28px; }
}