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

:root {
  --bg: #0a0a0f;
  --bg-2: #111118;
  --bg-3: #16161f;
  --surface: #1c1c28;
  --surface-2: #24243a;
  --border: rgba(255,255,255,0.07);
  --accent: #00e676;
  --accent-dim: rgba(0,230,118,0.12);
  --accent-mid: rgba(0,230,118,0.3);
  --text: #f0f0f8;
  --text-2: #9898b8;
  --text-3: #5a5a78;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 24px 60px rgba(0,0,0,0.5);
}

html { scroll-behavior: smooth; }

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

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

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 3px; }

/* ========== ANIMATIONS ========== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-in {
  opacity: 0;
  transition: opacity 0.9s ease;
}
.fade-in.visible { opacity: 1; }

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ========== NAV ========== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 5%;
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.02em;
}
.nav-logo::before { content: ''; display: inline-block; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; margin-right: 8px; }
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
.nav-links a { font-size: 0.9rem; color: var(--text-2); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent) !important;
  color: #000 !important;
  padding: 8px 18px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem !important;
  transition: opacity 0.2s !important;
}
.nav-cta:hover { opacity: 0.85; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding-bottom: 12px;
}
.mobile-menu.open { display: flex; }
.mobile-link {
  padding: 14px 0;
  font-size: 1rem;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  padding: 120px 5% 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,230,118,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 1px;
  background: var(--border);
}
.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}
.hero-text { flex: 1; max-width: 600px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.hero-tag::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,230,118,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(0,230,118,0); }
}
.hero-heading {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.accent { color: var(--accent); }
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 36px;
  max-width: 460px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-socials { display: flex; gap: 16px; }
.social-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all 0.2s;
}
.social-icon svg { width: 16px; height: 16px; }
.social-icon:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* Hero Avatar */
.hero-image { position: relative; flex-shrink: 0; }
.hero-avatar {
  position: relative;
  width: 280px; height: 280px;
  display: flex; align-items: center; justify-content: center;
}
.avatar-placeholder {
  width: 200px; height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  position: relative;
  z-index: 1;
  border: 2px solid var(--border);
}
.avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px dashed rgba(0,230,118,0.2);
  animation: spin 20s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar-dot {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--bg);
}
.dot-1 { top: 20px; right: 30px; }
.dot-2 { bottom: 30px; left: 20px; width: 8px; height: 8px; background: #7c4dff; }
.dot-3 { top: 50%; right: 0; width: 16px; height: 16px; background: transparent; border: 2px solid var(--accent); }

/* Hero scroll */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-3);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-3), transparent);
  animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.6); opacity: 0.5; }
}

/* ========== STATS ========== */
.stats {
  padding: 60px 5%;
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat-item {
  flex: 1;
  min-width: 150px;
  text-align: center;
  padding: 20px;
}
.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
}
.stat-plus { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat-item p { font-size: 0.85rem; color: var(--text-2); margin-top: 4px; }
.stat-divider { width: 1px; height: 60px; background: var(--border); }

/* ========== SECTION SHARED ========== */
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.section-sub { font-size: 1rem; color: var(--text-2); max-width: 500px; margin: 0 auto; }

/* ========== WORKS ========== */
.works { padding: 100px 5%; }

.filter-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.filter-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.filter-btn.active, .filter-btn:hover {
  background: var(--accent-dim);
  border-color: var(--accent-mid);
  color: var(--accent);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.work-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s, opacity 0.4s;
}
.work-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--accent-mid);
}
.work-card.hidden { display: none; }

.work-thumb {
  height: 220px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* ===== MOCKUP STYLES ===== */
.work-mockup { position: relative; }

.mobile-mockup {
  width: 100px;
  transform: perspective(800px) rotateY(-10deg) rotateX(5deg);
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
}
.mockup-screen {
  background: #1a1a2a;
  border-radius: 14px;
  border: 2px solid rgba(255,255,255,0.1);
  padding: 10px 8px;
  min-height: 170px;
}
.mockup-screen.dark { background: #0d0d1a; }

.web-mockup { width: 200px; transform: perspective(800px) rotateX(8deg); filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5)); }
.mockup-browser {
  background: #1a1a2a;
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.1);
  overflow: hidden;
}
.browser-bar {
  background: #111120;
  padding: 6px 10px;
  display: flex;
  align-items: center;
}
.browser-dots { display: flex; gap: 4px; }
.browser-dots span { width: 6px; height: 6px; border-radius: 50%; }
.browser-dots span:nth-child(1) { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #febc2e; }
.browser-dots span:nth-child(3) { background: #28c840; }
.web-screen { padding: 8px; min-height: 110px; }

.mockup-ui { display: flex; flex-direction: column; gap: 6px; height: 100%; }
.ui-bar { height: 8px; border-radius: 4px; background: rgba(255,255,255,0.1); }
.ui-bar.green { background: var(--accent); opacity: 0.8; }
.ui-card { height: 28px; border-radius: 6px; background: rgba(255,255,255,0.06); }
.ui-card.short { height: 16px; }
.ui-card.wide { height: 20px; grid-column: 1/-1; }
.ui-row { display: flex; align-items: center; gap: 5px; }
.ui-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.15); flex-shrink: 0; }
.ui-dot.green { background: var(--accent); }
.ui-line { height: 5px; border-radius: 3px; background: rgba(255,255,255,0.08); flex: 1; }
.ui-line.short { max-width: 60%; }
.ui-list { display: flex; flex-direction: column; gap: 6px; }
.ui-list-item { display: flex; align-items: center; gap: 5px; }
.ui-avatar { width: 18px; height: 18px; border-radius: 50%; background: rgba(255,255,255,0.1); flex-shrink: 0; }
.ui-avatar.lg { width: 24px; height: 24px; }
.ui-lines { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.ui-btn { height: 14px; border-radius: 7px; background: var(--accent); opacity: 0.7; margin-top: auto; }
.ui-btn.green-btn { background: var(--accent); }
.ui-hero-block { height: 50px; border-radius: 6px; background: rgba(255,255,255,0.08); }
.ui-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.ui-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 3px; }
.ui-nav-strip { height: 8px; border-radius: 4px; background: rgba(255,255,255,0.05); }
.ui-profile-row { display: flex; align-items: center; gap: 6px; }
.ui-sport-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; margin-top: 4px; }
.ui-sport-card { height: 40px; border-radius: 6px; background: rgba(255,255,255,0.07); }
.ui-map-block { height: 60px; border-radius: 8px; background: rgba(18,104,114,0.3); position: relative; display: flex; align-items: center; justify-content: center; }
.ui-map-pin { width: 10px; height: 10px; border-radius: 50% 50% 50% 0; background: var(--accent); transform: rotate(-45deg); }

.work-info { padding: 24px; }
.work-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.work-info h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.work-info p { font-size: 0.85rem; color: var(--text-2); line-height: 1.6; margin-bottom: 16px; }
.work-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}
.work-link:hover { gap: 8px; }

/* ========== SKILLS ========== */
.skills {
  padding: 100px 5%;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color 0.3s, transform 0.3s;
}
.skill-card:hover { border-color: var(--accent-mid); transform: translateY(-4px); }
.skill-icon {
  width: 48px; height: 48px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}
.skill-icon svg { width: 22px; height: 22px; }
.skill-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.skill-card p { font-size: 0.85rem; color: var(--text-2); line-height: 1.7; margin-bottom: 16px; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.skill-tags span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-3);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 50px;
}

/* ========== ABOUT ========== */
.about { padding: 100px 5%; }
.about-inner {
  display: flex;
  align-items: center;
  gap: 80px;
}
.about-visual { flex-shrink: 0; }
.about-card-stack { position: relative; width: 280px; height: 340px; }
.about-card {
  position: absolute;
  width: 240px;
  height: 300px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.card-back { background: var(--surface); transform: rotate(-6deg); top: 20px; left: 20px; }
.card-mid { background: var(--surface-2); transform: rotate(-3deg); top: 10px; left: 10px; }
.card-front {
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface) 100%);
  top: 0; left: 0;
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.card-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 2px solid var(--accent-mid);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
}
.card-name { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.card-role { font-size: 0.8rem; color: var(--text-2); }
.card-divider { width: 40px; height: 1px; background: var(--border); margin: 16px auto; }
.card-stats { display: flex; gap: 20px; }
.card-stats div { display: flex; flex-direction: column; align-items: center; }
.card-stats strong { font-size: 1.2rem; font-weight: 800; color: var(--accent); }
.card-stats span { font-size: 0.7rem; color: var(--text-3); }

.about-text { flex: 1; }
.about-text .section-tag { display: block; margin-bottom: 12px; }
.about-text .section-title { text-align: left; margin-bottom: 20px; }
.about-text p { font-size: 0.95rem; color: var(--text-2); line-height: 1.8; margin-bottom: 14px; }
.about-tools { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 32px; }
.tool-badge {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text-2);
  background: var(--surface);
  transition: all 0.2s;
}
.tool-badge:hover { border-color: var(--accent-mid); color: var(--accent); }

/* ========== CONTACT ========== */
.contact {
  padding: 100px 5%;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.contact-inner { }
.contact-card {
  max-width: 700px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px;
  text-align: center;
}
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  padding: 14px 28px;
  border: 1px solid var(--accent-mid);
  border-radius: 50px;
  background: var(--accent-dim);
  margin-bottom: 32px;
  transition: all 0.2s;
}
.contact-email svg { width: 18px; height: 18px; }
.contact-email:hover { background: rgba(0,230,118,0.2); transform: translateY(-2px); }
.contact-socials { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.contact-social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
  background: var(--bg);
  transition: all 0.2s;
}
.contact-social-btn svg { width: 15px; height: 15px; }
.contact-social-btn:hover { border-color: var(--accent-mid); color: var(--accent); background: var(--accent-dim); }

/* ========== FOOTER ========== */
.footer {
  padding: 28px 5%;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo { font-weight: 700; font-size: 0.9rem; }
.footer p { font-size: 0.8rem; color: var(--text-3); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { flex-direction: column; gap: 48px; }
  .about-card-stack { margin: 0 auto; }
  .about-text .section-title { text-align: center; }
  .about-text { text-align: center; }
  .about-tools { justify-content: center; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-content { flex-direction: column-reverse; gap: 40px; }
  .hero-avatar { width: 200px; height: 200px; }
  .avatar-placeholder { width: 150px; height: 150px; font-size: 2rem; }
  .hero-text { text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-scroll { display: none; }
  .works-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .stat-divider { display: none; }
  .stats-inner { gap: 20px; }
  .contact-card { padding: 28px 20px; }
  .contact-email { font-size: 0.9rem; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}