/* ===== Design Tokens ===== */
:root {
  --bg: #0a0e17;
  --bg-elevated: #10151f;
  --bg-card: #141a26;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e8ecf4;
  --text-dim: #9aa4b8;
  --text-faint: #636e82;
  --accent: #6ee7ff;
  --accent-2: #a78bfa;
  --accent-3: #f472b6;
  --gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-3) 100%);
  --radius: 18px;
  --radius-sm: 10px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --shadow-soft: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --bg-elevated: #ffffff;
    --bg-card: #ffffff;
    --border: rgba(10, 14, 23, 0.08);
    --border-strong: rgba(10, 14, 23, 0.14);
    --text: #141a26;
    --text-dim: #4b5468;
    --text-faint: #848e9e;
    --shadow-soft: 0 20px 60px -25px rgba(20, 26, 38, 0.25);
  }
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Background Textures ===== */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.cursor-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 231, 255, 0.07), transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  will-change: transform;
}

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(.16,1,.3,1), transform 0.8s cubic-bezier(.16,1,.3,1);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }
.btn-primary {
  background: var(--gradient);
  color: #06111b;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(110, 231, 255, 0.5); }
.btn-outline {
  border-color: var(--border-strong);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-ghost {
  color: var(--text-dim);
  padding: 8px 16px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text); border-color: var(--border-strong); }

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(16px) saturate(140%);
  background: rgba(10, 14, 23, 0.55);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
@media (prefers-color-scheme: light) {
  .navbar { background: rgba(246, 247, 251, 0.7); }
}
.navbar.scrolled { border-bottom-color: var(--border); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}
.logo .dot { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient);
  transition: width 0.25s ease;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 14px; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.burger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 90px;
  overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
}
.blob-1 {
  width: 480px; height: 480px;
  background: var(--accent);
  top: -120px; right: -100px;
  animation: float1 14s ease-in-out infinite;
}
.blob-2 {
  width: 420px; height: 420px;
  background: var(--accent-2);
  bottom: -140px; left: -120px;
  animation: float2 16s ease-in-out infinite;
}
@keyframes float1 {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(-40px, 40px); }
}
@keyframes float2 {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(50px, -30px); }
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, black, transparent);
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--text-dim);
  font-weight: 500;
  margin-bottom: 22px;
  min-height: 1.6em;
}
.cursor-blink { color: var(--accent); animation: blink 1s step-start infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-desc strong { color: var(--text); font-weight: 600; }

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }

.hero-socials { display: flex; gap: 16px; }
.hero-socials a {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  transition: all 0.25s ease;
}
.hero-socials a:hover {
  color: var(--bg);
  background: var(--gradient);
  border-color: transparent;
  transform: translateY(-3px);
}

.hero-visual { position: relative; display: flex; justify-content: center; }
.photo-frame {
  width: 340px;
  aspect-ratio: 1 / 1.08;
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-soft);
}
.photo-frame::before {
  content: '';
  position: absolute; inset: -2px;
  background: var(--gradient);
  z-index: -1;
  border-radius: 30px;
  opacity: 0.8;
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; }

.floating-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  animation: bob 5s ease-in-out infinite;
}
.card-1 { top: 10%; left: -40px; animation-delay: 0s; }
.card-2 { bottom: 8%; right: -30px; animation-delay: 1.5s; }
@keyframes bob {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.scroll-down {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 26px; height: 42px;
  border: 2px solid var(--border-strong);
  border-radius: 20px;
  display: flex; justify-content: center; padding-top: 8px;
}
.scroll-down span {
  width: 4px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollDown 1.6s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* ===== Sections ===== */
.section { padding: 120px 0; position: relative; z-index: 2; }

.section-tag {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 56px;
  max-width: 600px;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: start;
}
.about-photo img {
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-soft);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/5;
}
.about-content p { color: var(--text-dim); margin-bottom: 18px; font-size: 1.02rem; }
.about-content strong { color: var(--text); font-weight: 600; }

.about-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 30px;
}
.fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.fact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.fact-value { font-size: 0.92rem; font-weight: 500; }

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.skill-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.skill-icon { font-size: 1.8rem; margin-bottom: 14px; }
.skill-card h3 { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(110, 231, 255, 0.08);
  border: 1px solid rgba(110, 231, 255, 0.18);
  color: var(--text-dim);
}

/* ===== Projects ===== */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.project-card:hover { border-color: var(--border-strong); transform: translateY(-4px); }
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.project-card:hover::before { opacity: 1; }

.project-index {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  opacity: 0.7;
}
.project-info h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin: 8px 0 10px;
}
.project-stack {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.project-points { margin-bottom: 26px; }
.project-points li {
  color: var(--text-dim);
  font-size: 0.96rem;
  margin-bottom: 10px;
  padding-left: 22px;
  position: relative;
}
.project-points li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent);
}
.project-points strong { color: var(--text); font-weight: 600; }
.project-links { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Achievements ===== */
.achieve-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.achieve-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.achieve-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.achieve-icon { font-size: 1.8rem; margin-bottom: 12px; }
.achieve-card h3 { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 8px; }
.achieve-card p { color: var(--text-dim); font-size: 0.92rem; }
.achieve-card strong { color: var(--text); }

/* ===== Contact ===== */
.contact-inner { text-align: center; }
.contact-inner .section-title { margin-left: auto; margin-right: auto; }
.contact-desc {
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 48px;
  font-size: 1.02rem;
}
.contact-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}
.contact-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: var(--shadow-soft);
}
.contact-icon { font-size: 1.6rem; }
.contact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.contact-value { font-size: 0.88rem; color: var(--text-dim); word-break: break-word; }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  position: relative;
  z-index: 2;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-faint);
}
.back-top { color: var(--text-dim); transition: color 0.2s ease; }
.back-top:hover { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-cta, .hero-socials { justify-content: center; }
  .hero-visual { order: -1; margin-bottom: 24px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 320px; margin: 0 auto; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .achieve-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 18px;
  }
  .section { padding: 80px 0; }
  .about-facts { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .achieve-grid { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr 1fr; }
  .project-card { padding: 28px 22px; }
  .floating-card { display: none; }
  .nav-actions .btn-ghost { padding: 7px 14px; font-size: 0.8rem; }
}