@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ═══════════════════════════════════════════════
   DESIGN TOKENS
   ═══════════════════════════════════════════════ */
:root {
  --bg: #050508;
  --bg-card: #0d0d14;
  --bg-card-hover: #12121c;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);

  --text: #e4e4eb;
  --text-muted: #8b8b9e;
  --text-dim: #5a5a6e;

  --accent: #6366f1;
  --accent-light: #818cf8;
  --cyan: #06b6d4;
  --gradient: linear-gradient(135deg, #6366f1, #06b6d4);
  --gradient-text: linear-gradient(135deg, #818cf8, #22d3ee);
  --glow: 0 0 60px rgba(99,102,241,0.15), 0 0 120px rgba(6,182,212,0.08);

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --container: 1100px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ═══════════════════════════════════════════════
   AMBIENT BACKGROUND
   ═══════════════════════════════════════════════ */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.ambient-orb:nth-child(1) {
  width: 600px; height: 600px;
  background: var(--accent);
  top: -10%; left: -10%;
  animation-delay: 0s;
}

.ambient-orb:nth-child(2) {
  width: 500px; height: 500px;
  background: var(--cyan);
  bottom: -15%; right: -10%;
  animation-delay: -10s;
}

.ambient-orb:nth-child(3) {
  width: 300px; height: 300px;
  background: #a855f7;
  top: 40%; left: 50%;
  animation-delay: -5s;
  opacity: 0.15;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(15px, 30px) scale(1.02); }
}

/* ═══════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

.nav.scrolled {
  background: rgba(5,5,8,0.85);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links { display: flex; gap: 32px; align-items: center; }

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient);
  transition: width 0.3s;
}

.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }

.nav-cta {
  background: var(--gradient);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 600;
  -webkit-text-fill-color: #fff;
}

.nav-cta::after { display: none; }
.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.nav-hamburger span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5,5,8,0.97);
  backdrop-filter: blur(30px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.nav-mobile.open { display: flex; }

.nav-mobile .nav-link {
  font-size: 1.5rem;
  font-family: var(--font-heading);
  color: var(--text);
}

/* ═══════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 80px;
}

.hero-content {
  text-align: center;
  max-width: 800px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero h1 .gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 550px;
  margin: 0 auto 40px;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-dim);
  animation: bounce 2s infinite;
}

.hero-scroll::after {
  content: '';
  display: block;
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  margin: 8px auto 0;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99,102,241,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hover);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-2px);
}

/* ═══════════════════════════════════════════════
   SECTION SHARED
   ═══════════════════════════════════════════════ */
.section-pad { padding: 120px 0; }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 16px;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ═══════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ═══════════════════════════════════════════════
   SKILLS
   ═══════════════════════════════════════════════ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.4s;
}

.skill-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--glow);
}

.skill-card:hover::before { opacity: 1; }

.skill-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.skill-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.skill-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════
   PROJECTS
   ═══════════════════════════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s;
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: var(--glow);
}

.project-img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}

.project-body {
  padding: 28px;
}

.project-body h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.project-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(99,102,241,0.1);
  color: var(--accent-light);
  border: 1px solid rgba(99,102,241,0.15);
}

.project-meta {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--cyan);
  margin-bottom: 8px;
}

.project-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-light);
  transition: color 0.3s, gap 0.3s;
}

.project-link:hover { color: var(--cyan); }

/* Filter Tabs */
.filter-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
  margin-bottom: 8px;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all 0.3s;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.filter-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
}

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

/* Wide card — spans full grid width */
.project-card--wide {
  grid-column: 1 / -1;
}

.project-banner {
  padding: 40px 36px;
  border-bottom: 1px solid var(--border);
}

.project-banner-inner {}

.platform-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 12px;
}

.project-banner-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 8px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.project-banner-sub {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.platform-chip {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: border-color 0.3s, color 0.3s;
}

.project-card--wide:hover .platform-chip {
  border-color: rgba(99,102,241,0.2);
  color: var(--text);
}


/* ═══════════════════════════════════════════════
   EXPERIENCE TIMELINE
   ═══════════════════════════════════════════════ */
.timeline {
  position: relative;
  margin-top: 48px;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--cyan), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}

.timeline-dot {
  position: absolute;
  left: -33px; top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 12px rgba(99,102,241,0.4);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.timeline-item h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-company {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.timeline-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ═══════════════════════════════════════════════
   CTA / CONTACT
   ═══════════════════════════════════════════════ */
.cta-section {
  text-align: center;
  padding: 120px 24px;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,0.08), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.contact-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.9rem;
  color: var(--text);
  transition: all 0.3s;
}

.contact-chip:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer a {
  color: var(--accent-light);
  transition: color 0.3s;
}

.footer a:hover { color: var(--cyan); }

/* ═══════════════════════════════════════════════
   SCROLL REVEAL
   ═══════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s, transform 0.8s;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .hero { padding: 100px 24px 60px; }
  .section-pad { padding: 80px 0; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
  .stat-card { padding: 14px; }
  .stat-number { font-size: 1.5rem; }
  .contact-links { flex-direction: column; align-items: center; }
}