:root {
  --bg: #080812;
  --bg2: #0d0d1a;
  --cyan: #00d4ff;
  --purple: #a855f7;
  --pink: #f472b6;
  --white: #f0f0ff;
  --muted: #6b6b8a;
  --card-bg: rgba(255,255,255,0.03);
  --card-border: rgba(255,255,255,0.07);
  --grad: linear-gradient(135deg, var(--cyan), var(--purple));
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  overflow-x: hidden;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(16px);
  background: rgba(8,8,18,0.7);
  border-bottom: 1px solid var(--card-border);
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: 2px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--grad);
  transform: scaleX(0);
  transition: transform 0.3s;
}

.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--white); }
.nav-links a.active::after { transform: scaleX(1); }

/* ── SHARED ── */
section { position: relative; z-index: 1; }

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}

.section-divider {
  width: 60px; height: 3px;
  background: var(--grad);
  border-radius: 2px;
  margin-bottom: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── BUTTONS ── */
.btn-primary-custom {
  padding: 0.75rem 1.75rem;
  background: var(--grad);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.25);
}

.btn-ghost {
  padding: 0.75rem 1.75rem;
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-ghost:hover {
  border-color: var(--purple);
  background: rgba(168,85,247,0.08);
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 8% 60px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero-title span {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stack {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--purple);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.55s forwards;
}

.hero-desc {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.7s forwards;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.85s forwards;
}

.hero-visual {
  opacity: 0;
  animation: fadeIn 1s 0.6s forwards;
  position: relative;
}

.hero-visual-inner {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
}

.hero-visual-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(168,85,247,0.15));
  z-index: 1;
  border-radius: 20px;
}

.hero-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid var(--card-border);
  display: block;
}

.hero-badge {
  position: absolute;
  bottom: -20px; left: -20px;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
  backdrop-filter: blur(10px);
}

.hero-badge-dot {
  width: 10px; height: 10px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero-badge-text { font-size: 0.8rem; color: var(--muted); }
.hero-badge-text strong { color: var(--white); display: block; font-size: 0.9rem; }

/* ── ABOUT ── */
#about {
  padding: 140px 8% 100px;
  text-align: center;
}

.about-text {
  max-width: 700px;
  margin: 0 auto 3rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.9;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.stat-item { text-align: center; }

.stat-number {
  font-size: 2.8rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: 'JetBrains Mono', monospace;
}

.stat-label { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }

/* ── SKILLS ── */
#skills { padding: 80px 8%; }
.skills-header { text-align: center; margin-bottom: 3rem; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 2rem 1rem;
  text-align: center;
  cursor: default;
  transition: transform 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.3s;
}

.skill-card:hover { transform: translateY(-6px); border-color: var(--cyan); }
.skill-card:hover::before { opacity: 0.05; }

.skill-card i {
  font-size: 2.2rem;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 0.75rem;
  position: relative;
}

.skill-card h5 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  position: relative;
}

/* ── PROJECTS SECTION (index) ── */
#projects { padding: 80px 8%; }
.projects-header { text-align: center; margin-bottom: 3rem; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(168,85,247,0.4);
  box-shadow: 0 20px 60px rgba(168,85,247,0.1);
}

.project-img { position: relative; overflow: hidden; height: 200px; }
.project-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.project-card:hover .project-img img { transform: scale(1.08); }

.project-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(8,8,18,0.95));
}

.project-tag {
  position: absolute;
  top: 1rem; left: 1rem;
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.3);
  color: var(--cyan);
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  letter-spacing: 1px;
}

.project-body { padding: 1.5rem; }
.project-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; color: var(--white); }
.project-desc { color: var(--muted); font-size: 0.88rem; line-height: 1.7; margin-bottom: 1.5rem; }

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

.project-tech { display: flex; gap: 0.4rem; flex-wrap: wrap; }

.tech-tag {
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--purple);
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.2);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.project-link {
  width: 36px; height: 36px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}
.project-link:hover { border-color: var(--cyan); color: var(--cyan); }

/* ── FOOTER ── */
footer {
  position: relative; z-index: 1;
  padding: 50px 8%;
  border-top: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem; font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-copy { color: var(--muted); font-size: 0.85rem; }

.footer-socials { display: flex; gap: 1rem; }
.footer-socials a {
  color: var(--muted); font-size: 1rem;
  text-decoration: none; transition: color 0.2s;
}
.footer-socials a:hover { color: var(--cyan); }

/* ── CONTACT PAGE ── */
.contact-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 120px 5% 60px;
  position: relative; z-index: 1;
}

.contact-wrapper {
  width: 100%; max-width: 1000px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; line-height: 1.1;
  margin-bottom: 1rem;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-sub {
  color: var(--muted);
  font-size: 0.95rem; line-height: 1.8;
  margin-bottom: 2.5rem;
}

.contact-items { display: flex; flex-direction: column; gap: 1.25rem; }

.contact-item {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px; padding: 1rem 1.25rem;
  transition: border-color 0.3s;
}
.contact-item:hover { border-color: rgba(0,212,255,0.3); }

.contact-item-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(168,85,247,0.1));
  border: 1px solid var(--card-border);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan); font-size: 1rem; flex-shrink: 0;
}

.contact-item-text .label {
  font-size: 0.72rem; color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}
.contact-item-text .value { font-size: 0.9rem; color: var(--white); margin-top: 2px; }

.contact-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px; padding: 2.5rem;
}

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

.form-group { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }

.form-group label {
  font-size: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted); letter-spacing: 1px;
}

.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: 10px; padding: 0.8rem 1rem;
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem; outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}

.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select option { background: #0d0d1a; }

.btn-send {
  width: 100%; padding: 0.9rem;
  background: var(--grad); border: none; border-radius: 10px;
  color: #fff; font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem; font-weight: 700; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 0.6rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-send:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,212,255,0.2); }

.success-msg {
  display: none; text-align: center; padding: 1.5rem;
  color: #22c55e; font-size: 0.95rem;
}
.success-msg i { font-size: 2rem; display: block; margin-bottom: 0.5rem; }

/* ── PROJECTS PAGE ── */
.projects-page {
  padding: 120px 8% 80px;
  position: relative; z-index: 1;
}

.projects-page-header {
  text-align: center;
  margin-bottom: 3rem;
}

.filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 30px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 1px;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,212,255,0.07);
}

.projects-full-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card-full {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.project-card-full:hover {
  transform: translateY(-8px);
  border-color: rgba(168,85,247,0.4);
  box-shadow: 0 20px 60px rgba(168,85,247,0.1);
}

.project-card-full.hidden { display: none; }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulse-dot {
  0%,100% { box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
  50%      { box-shadow: 0 0 0 6px rgba(34,197,94,0.05); }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .stats-row { gap: 2rem; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; text-align: center; }
}