/* ============================================
   NAITIK DEV — Design System
   Dark, developer-grade, blue→purple accent
   ============================================ */

:root {
  --bg: #0d0d0d;
  --bg-alt: #0a0a0a;
  --card: #111;
  --card-hover: #161616;
  --border: #1f1f1f;
  --border-glow: #2a2a2a;
  --text: #e8e8e8;
  --text-muted: #888;
  --text-dim: #555;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-soft: linear-gradient(135deg, rgba(59,130,246,0.15) 0%, rgba(139,92,246,0.15) 100%);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.25);
  --radius: 12px;
  --font-sans: 'Inter', -apple-system, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Background grid effect */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 0%, rgba(59,130,246,0.08), transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(139,92,246,0.08), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ============ NAVBAR ============ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(13, 13, 13, 0.7);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 12px var(--accent-purple);
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  list-style: none;
}
.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color 0.2s;
  font-weight: 500;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  text-align: center;
}
.btn-primary {
  background: var(--gradient);
  color: white;
  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, 0.5);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-glow);
}
.btn-ghost:hover {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.08);
}
.btn-danger {
  background: #2a0e0e;
  color: #ff6b6b;
  border: 1px solid #4a1a1a;
}
.btn-danger:hover { background: #3a1414; }

/* ============ HERO ============ */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.05;
  margin-bottom: 20px;
}
.hero h1 .grad {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ SECTIONS ============ */
.section { padding: 70px 0; }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 36px;
  flex-wrap: wrap;
  gap: 16px;
}
.section-head h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.section-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-blue);
}
.section-link:hover { color: var(--accent-purple); }

/* ============ WHAT I BUILD ============ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-soft);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.feature-card:hover { border-color: var(--accent-purple); transform: translateY(-4px); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--gradient-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

/* ============ PROJECT CARDS ============ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.project-card:hover {
  border-color: var(--accent-purple);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.project-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 10px;
}
.project-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
}
.project-card .desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 18px;
  flex: 1;
}
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}
.status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.status-live {
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
}
.status-testing {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.project-link-inline {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-blue);
  margin-top: auto;
}

/* ============ EMPTY STATE ============ */
.empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--card);
  border: 1px dashed var(--border-glow);
  border-radius: var(--radius);
  color: var(--text-muted);
}
.empty h3 { color: var(--text); margin-bottom: 8px; font-size: 1.2rem; }
.empty p { font-size: 0.95rem; }

/* ============ FILTERS ============ */
.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.filter-chip {
  padding: 8px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.filter-chip:hover { color: var(--text); border-color: var(--border-glow); }
.filter-chip.active {
  background: var(--gradient);
  color: white;
  border-color: transparent;
}

/* ============ PROJECT DETAIL ============ */
.detail-hero {
  padding: 60px 0 40px;
}
.back-link {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: inline-block;
}
.back-link:hover { color: var(--accent-purple); }
.detail-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}
.detail-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.detail-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 18px;
}
.detail-section h2 {
  font-size: 1.05rem;
  font-family: var(--font-mono);
  color: var(--accent-purple);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.detail-section p, .detail-section li {
  color: var(--text);
  font-size: 0.98rem;
  line-height: 1.8;
}
.detail-section ul { padding-left: 20px; }
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ============ ABOUT ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.skills-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.skills-list li {
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

/* ============ CONTACT ============ */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 32px;
}
.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  transition: all 0.3s;
}
.contact-card:hover {
  border-color: var(--accent-purple);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}
.contact-card .ico {
  font-size: 2.4rem;
  margin-bottom: 14px;
}
.contact-card h3 { margin-bottom: 8px; }
.contact-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 18px; }

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 80px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.88rem;
  font-family: var(--font-mono);
}
.footer .tagline {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
  margin-bottom: 6px;
}

/* ============ ADMIN ============ */
.admin-body {
  background: var(--bg);
  min-height: 100vh;
  padding: 40px 20px;
}
.admin-card {
  max-width: 440px;
  margin: 80px auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.admin-card h1 {
  font-size: 1.6rem;
  margin-bottom: 6px;
  text-align: center;
}
.admin-card .sub {
  color: var(--text-muted);
  text-align: center;
  font-size: 0.9rem;
  margin-bottom: 30px;
  font-family: var(--font-mono);
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-purple);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.btn-block { width: 100%; justify-content: center; }
.error-msg {
  color: #ff6b6b;
  font-size: 0.85rem;
  margin-top: 10px;
  text-align: center;
}

/* Admin dashboard */
.admin-wrap { max-width: 1100px; margin: 0 auto; }
.admin-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.admin-top h1 { font-size: 1.5rem; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: var(--radius);
}
.stat-card .num {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-card .lbl {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--font-mono);
  margin-top: 4px;
}
.admin-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.admin-table {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-collapse: collapse;
  overflow: hidden;
}
.admin-table th, .admin-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.admin-table th {
  background: var(--bg-alt);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.admin-table tr:last-child td { border-bottom: none; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.hidden { display: none !important; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(13,13,13,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
  }
  .nav-links.open { display: flex; }
  .about-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 50px; }
  .section { padding: 50px 0; }
  .admin-card { margin: 30px auto; padding: 28px; }
  .admin-table { font-size: 0.8rem; }
  .admin-table th, .admin-table td { padding: 10px; }
}