@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
  --bg: #101010;
  --bg2: #1a1a1a;
  --bg3: #222222;
  --accent: #0bb4aa;
  --accent2: #09d4c8;
  --text: #f0f0f0;
  --text2: #a0a0a0;
  --border: #2a2a2a;
  --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ========== NAV ========== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0 48px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(11,180,170,0.4), transparent);
}

.nav-logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  align-items: center;
}

.nav-links li:not(:last-child) a {
  font-size: 14px;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  transition: color 0.18s, background 0.18s;
}

.nav-links li:not(:last-child) a:hover {
  color: #fff;
  background: rgba(255,255,255,0.07);
}

.nav-cta {
  background: linear-gradient(135deg, var(--accent) 0%, #08c4b8 100%);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.3px;
  margin-left: 8px;
  transition: all 0.2s;
  box-shadow: 0 0 20px rgba(11,180,170,0.25);
}

.nav-cta:hover {
  box-shadow: 0 0 32px rgba(11,180,170,0.45) !important;
  transform: translateY(-1px);
  color: #fff !important;
}

/* ========== HERO ========== */
.hero {
  padding: 140px 40px 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(11,180,170,0.12);
  border: 1px solid rgba(11,180,170,0.3);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.hero h1 span { color: var(--accent); }

.hero p {
  font-size: 18px;
  color: var(--text2);
  max-width: 560px;
  margin-bottom: 40px;
}

/* ========== PROJECTS GRID ========== */
.projects-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px 100px;
}

.section-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 48px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  cursor: pointer;
  display: block;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(11,180,170,0.12);
}

.card-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  position: relative;
  overflow: hidden;
}

.card-thumb-gradient {
  position: absolute;
  inset: 0;
  opacity: 0.15;
}

.card-body {
  padding: 24px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.tag {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(11,180,170,0.12);
  color: var(--accent);
  border: 1px solid rgba(11,180,170,0.2);
}

.card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.card-desc {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.65;
  margin-bottom: 20px;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.card-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #4ade80;
  font-weight: 600;
}

.card-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4ade80;
}

.card-arrow {
  font-size: 18px;
  color: var(--accent);
  transition: transform 0.2s;
}

.project-card:hover .card-arrow { transform: translateX(4px); }

/* ========== PROJECT DETAIL ========== */
.detail-hero {
  padding: 120px 40px 60px;
  max-width: 900px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text2);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 32px;
  transition: color 0.2s;
}

.back-link:hover { color: var(--accent); }

.detail-icon {
  font-size: 56px;
  margin-bottom: 20px;
}

.detail-hero h1 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.detail-hero .subtitle {
  font-size: 18px;
  color: var(--text2);
  max-width: 600px;
  margin-bottom: 32px;
}

.detail-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }

.detail-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent2); }

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--bg2);
}

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

.detail-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 40px 100px;
}

.detail-section {
  margin-bottom: 56px;
}

.detail-section h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.detail-section p {
  font-size: 16px;
  color: var(--text2);
  line-height: 1.8;
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.feature-list li {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.feature-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.stack-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.stack-chip {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text2);
}

/* ========== DEMO GATE ========== */
.demo-gate {
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-gate input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  outline: none;
  width: 180px;
  transition: border-color 0.2s;
}

.demo-gate input::placeholder { color: var(--text2); }
.demo-gate input:focus { border-color: var(--accent); }

.demo-gate button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: background 0.2s;
}

.demo-gate button:hover { background: var(--accent2); }

.demo-gate .demo-error {
  color: #f87171;
  font-size: 13px;
  display: none;
}

/* ========== FOOTER ========== */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 40px;
  text-align: center;
  color: var(--text2);
  font-size: 13px;
}

footer a { color: var(--accent); }

/* ========== FADE-IN ANIMATION ========== */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== HAMBURGER MENU ========== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========== RESPONSIVE ========== */
/* ========== CLIENT FLAGS ========== */
.client-flags-wrap {
  margin-top: 32px;
}
.client-flags-label {
  font-size: 13px;
  color: var(--text2);
  font-weight: 500;
  margin-bottom: 12px;
  display: block;
}
.client-flags {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.client-flags span {
  font-size: 13px;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 20px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
}

@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    background: #101010;
    flex-direction: column;
    align-items: stretch;
    padding: 0 20px 20px;
    gap: 0;
    list-style: none;
    border-bottom: 1px solid var(--border);
    z-index: 200;
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--border); width: 100%; }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a {
    display: block;
    padding: 16px 0;
    font-size: 16px;
    color: var(--text2);
    background: none;
    box-shadow: none;
    margin-left: 0;
  }
  .nav-links .nav-cta {
    display: block;
    margin: 0;
    padding: 16px 0;
    text-align: left;
    border-radius: 0;
    font-size: 16px;
    background: none;
    color: var(--accent);
    box-shadow: none;
  }
  .hero, .projects-section, .detail-hero, .detail-content { padding-left: 20px; padding-right: 20px; }
  .hero { padding-top: 100px; }
  .projects-grid { grid-template-columns: 1fr; }
  .client-flags { gap: 6px; }
  .client-flags span { font-size: 12px; padding: 5px 10px; }
}