:root {
  --bg: #0a0f1f;
  --bg-soft: rgba(19, 28, 51, 0.72);
  --surface: rgba(16, 23, 43, 0.75);
  --surface-strong: rgba(21, 31, 56, 0.95);
  --text: #eff4ff;
  --text-muted: #9da9c7;
  --accent: #7c5cff;
  --accent-2: #26d0ce;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 20px 60px rgba(7, 12, 26, 0.45);
  --glow: 0 0 0 1px rgba(124, 92, 255, 0.18), 0 18px 50px rgba(38, 208, 206, 0.14);
  --radius: 24px;
  --radius-sm: 16px;
  --container: min(1120px, calc(100% - 2rem));
  --nav-height: 78px;
  --transition: 0.35s ease;
}

body.light-theme {
  --bg: #f4f7ff;
  --bg-soft: rgba(255, 255, 255, 0.72);
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.97);
  --text: #111827;
  --text-muted: #5e6881;
  --accent: #5b57ff;
  --accent-2: #0ea5a4;
  --border: rgba(17, 24, 39, 0.08);
  --shadow: 0 20px 50px rgba(106, 133, 182, 0.16);
  --glow: 0 0 0 1px rgba(91, 87, 255, 0.12), 0 20px 50px rgba(14, 165, 164, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

body.nav-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.section-shell {
  position: relative;
  padding: 7rem 0;
}

.site-bg {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -2;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  animation: floatOrb 14s ease-in-out infinite;
}

.orb-1 {
  width: 320px;
  height: 320px;
  background: rgba(124, 92, 255, 0.22);
  top: 8%;
  left: -4%;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(38, 208, 206, 0.18);
  top: 45%;
  right: -5%;
  animation-delay: -4s;
}

.orb-3 {
  width: 240px;
  height: 240px;
  background: rgba(255, 91, 146, 0.16);
  bottom: 8%;
  left: 35%;
  animation-delay: -8s;
}

.grid-overlay,
.noise-overlay {
  position: absolute;
  inset: 0;
}

.grid-overlay {
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 70px 70px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 78%);
}

.noise-overlay {
  opacity: 0.12;
  background-image: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.14) 0, transparent 28%), radial-gradient(circle at 80% 30%, rgba(255,255,255,0.08) 0, transparent 20%), radial-gradient(circle at 50% 80%, rgba(255,255,255,0.08) 0, transparent 18%);
}

.page-loader {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(10, 15, 31, 0.88);
  backdrop-filter: blur(14px);
  z-index: 999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-core {
  display: grid;
  gap: 1rem;
  justify-items: center;
  color: #f8fbff;
}

.loader-ring {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.12);
  border-top-color: var(--accent-2);
  border-right-color: var(--accent);
  animation: spin 1s linear infinite;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.navbar {
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.brand span,
.section-label,
.hero-description strong {
  color: var(--accent-2);
}

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

.theme-toggle,
.nav-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform var(--transition), background-color var(--transition), border-color var(--transition);
}

.theme-toggle:hover,
.nav-toggle:hover,
.btn:hover,
.project-link:hover {
  transform: translateY(-2px);
}

.nav-toggle {
  gap: 4px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-menu {
  position: fixed;
  top: calc(var(--nav-height) + 0.75rem);
  left: 1rem;
  right: 1rem;
  display: grid;
  gap: 0.5rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
  transform: translateY(-16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.nav-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-link {
  padding: 0.85rem 1rem;
  border-radius: 14px;
  color: var(--text-muted);
  transition: background-color var(--transition), color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  background: rgba(124, 92, 255, 0.12);
  color: var(--text);
}

.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
}

.hero-layout,
.contact-grid,
.about-grid {
  display: grid;
  gap: 1.5rem;
}

.eyebrow,
.section-label,
.timeline-year,
.projects-status {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
}

.hero-typing-card,
.glass-card,
.project-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-typing-card {
  padding: 1.4rem;
  min-height: 212px;
}

.hero-typing {
  display: grid;
  gap: 0.45rem;
  min-height: 160px;
}

.hero-line {
  margin: 0;
  letter-spacing: -0.04em;
  font-weight: 700;
}

.hero-line.line-1 {
  font-size: clamp(2rem, 6vw, 4.6rem);
}

.hero-line.line-2 {
  font-size: clamp(1.4rem, 4vw, 2.6rem);
  color: var(--text-muted);
}

.hero-line.line-3 {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 500;
  color: var(--text-muted);
  max-width: 56ch;
}

.cursor {
  display: inline-block;
  width: 0.65ch;
  margin-left: 0.1ch;
  color: var(--accent-2);
  animation: blink 1s step-end infinite;
}

.hero-description {
  max-width: 56ch;
  color: var(--text-muted);
}

.hero-actions,
.hero-metrics,
.contact-points,
.projects-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn,
.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.95rem 1.25rem;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: var(--glow);
}

.btn-secondary {
  border-color: var(--border);
  background: rgba(255,255,255,0.03);
}

.btn-full {
  width: 100%;
}

.hero-metrics article {
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  min-width: 150px;
}

.hero-metrics strong {
  display: block;
  font-size: 1.4rem;
}

.hero-metrics span,
.section-heading p,
.bio-card p,
.timeline-content p,
.project-description,
.project-links a,
.contact-points a,
.form-success {
  color: var(--text-muted);
}

.terminal-card {
  padding: 1rem;
}

.terminal-topbar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.terminal-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
}

.terminal-topbar span:nth-child(1) { background: #ff6b6b; }
.terminal-topbar span:nth-child(2) { background: #ffd166; }
.terminal-topbar span:nth-child(3) { background: #4ade80; }

.terminal-body {
  font-family: monospace;
  font-size: 0.96rem;
  color: #dbe6ff;
}

.terminal-key { color: #7dd3fc; }
.terminal-string { color: #86efac; }

.section-heading {
  max-width: 720px;
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0.35rem 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.bio-card,
.skills-card,
.contact-form {
  padding: 1.4rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.2rem;
}

.skill-tags span,
.project-badge {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.12);
  border: 1px solid rgba(124, 92, 255, 0.18);
  color: var(--text);
  font-size: 0.92rem;
}

.skill-bars {
  display: grid;
  gap: 1rem;
}

.skill-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
}

.skill-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  overflow: hidden;
}

.skill-track span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 1.1s ease 0.2s;
}

.reveal-visible .skill-track span,
.reveal.is-visible .skill-track span,
.skill-bar.is-visible .skill-track span {
  width: var(--skill-width);
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.2rem;
  padding-left: 1.2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 1.5rem;
}

.timeline-dot {
  position: absolute;
  left: -0.1rem;
  top: 1.25rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 6px rgba(124, 92, 255, 0.12);
}

.timeline-content {
  padding: 1.2rem;
}

.projects-grid {
  display: grid;
  gap: 1.25rem;
}

.project-card {
  padding: 1.35rem;
  transform: translateY(18px) scale(0.98);
  opacity: 0;
  transition: transform 0.45s ease, opacity 0.45s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.project-card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.project-card:hover {
  box-shadow: var(--glow);
  border-color: rgba(124, 92, 255, 0.26);
  transform: translateY(-8px) scale(1.02);
}

.project-card::after,
.hero-typing-card::after,
.glass-card::after {
  content: "";
  position: absolute;
  inset: -40% auto auto -10%;
  width: 140px;
  height: 200px;
  background: linear-gradient(180deg, rgba(255,255,255,0.12), transparent);
  transform: rotate(24deg);
  opacity: 0.25;
  pointer-events: none;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 1.1rem;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.project-link {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
}

.project-link.primary {
  background: rgba(38, 208, 206, 0.12);
  border-color: rgba(38, 208, 206, 0.22);
}

.project-state,
.project-error {
  padding: 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
  color: var(--text-muted);
}

.contact-grid {
  align-items: start;
}

.contact-points {
  flex-direction: column;
  align-items: flex-start;
}

.contact-points a {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.form-group {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

input,
textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 0.95rem 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

input:focus,
textarea:focus {
  border-color: rgba(124, 92, 255, 0.55);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.12);
}

.form-group.error input,
.form-group.error textarea {
  border-color: rgba(255, 107, 107, 0.65);
}

.error-message {
  min-height: 1rem;
  color: #ff8d8d;
}

.form-success {
  min-height: 1.4rem;
  margin: 0.85rem 0 0;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
}

.form-success.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(34px) scale(0.98);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal.is-visible,
.reveal-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

[data-reveal="slide-left"] {
  transform: translateX(40px);
}

[data-reveal="slide-right"] {
  transform: translateX(-40px);
}

[data-reveal="scale-in"] {
  transform: scale(0.92);
}

[data-reveal="fade-up"] {
  transform: translateY(28px);
}

.progressive-child {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.progressive-child.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes blink {
  50% { opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes floatOrb {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -22px, 0) scale(1.05); }
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .hero-layout {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .section-shell {
    padding: 8rem 0;
  }

  .projects-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-typing-card {
    padding: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  .reveal,
  .progressive-child,
  .project-card {
    opacity: 1 !important;
    transform: none !important;
  }
}