/* ============================================
   PARAIBELCOM — Sovereign Tactical AI
   Dark defense-industry theme
   ============================================ */

:root {
  --bg:       #080c10;
  --bg2:      #0d1117;
  --bg3:      #161b22;
  --border:   #21262d;
  --text:     #c9d1d9;
  --text2:    #8b949e;
  --gold:     #c9a84c;
  --gold-dim: #a8893a;
  --blue:     #4a7aac;
  --blue-dim: #2d5a8a;
  --red:      #b44;
  --white:    #e6edf3;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 64px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- BRANDING COLORS ---- */
.t-gold { color: var(--gold); }
.t-white { color: var(--white); }

/* ---- NAV ---- */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 64px;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 18px;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 3px;
}
.nav-logo .t-gold { color: var(--gold); }
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--text2);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--gold); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: 0.2s;
}

/* ---- HERO ---- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(74, 122, 172, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 30% 60%, rgba(201, 168, 76, 0.05) 0%, transparent 60%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 24px;
}
.hero-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--gold);
  border: 1px solid var(--gold-dim);
  padding: 6px 16px;
  margin-bottom: 32px;
  text-transform: uppercase;
}
#hero h1 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 800;
  letter-spacing: 8px;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1;
}
.hero-etym {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(12px, 1.6vw, 16px);
  color: var(--text2);
  letter-spacing: 4px;
  margin-bottom: 32px;
}
.hero-sub {
  font-size: clamp(16px, 2.2vw, 22px);
  color: var(--text);
  max-width: 680px;
  margin: 0 auto 16px;
  line-height: 1.5;
}
.hero-sub2 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-decoration: none;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s;
}
.btn-gold {
  background: var(--gold);
  color: var(--bg);
  border-color: var(--gold);
}
.btn-gold:hover {
  background: transparent;
  color: var(--gold);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text2);
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---- SECTION COMMON ---- */
section {
  padding: 120px 0;
}
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}
section h2 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 48px;
  letter-spacing: 1px;
}

/* ---- PROBLEM ---- */
#problem {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}
.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 32px;
  text-align: center;
}
.problem-stat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 36px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 16px;
}
.problem-desc {
  font-size: 15px;
  color: var(--text2);
  line-height: 1.6;
}
.problem-solution {
  text-align: center;
  padding: 32px;
  border: 1px solid var(--gold-dim);
  background: rgba(201, 168, 76, 0.04);
}
.solution-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--gold);
  display: block;
  margin-bottom: 12px;
}
.problem-solution p {
  color: var(--text);
  font-size: 17px;
  max-width: 600px;
  margin: 0 auto;
}

/* ---- CAPABILITIES ---- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.cap-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 32px;
  display: flex;
  gap: 20px;
  transition: border-color 0.25s;
}
.cap-card:hover {
  border-color: var(--gold-dim);
}
.cap-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  color: var(--text2);
}
.cap-icon svg {
  width: 100%;
  height: 100%;
}
.cap-card h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.cap-card p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.6;
}

/* ---- PIPELINE ---- */
#pipeline {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.pipeline-intro {
  color: var(--text2);
  font-size: 17px;
  max-width: 600px;
  margin-bottom: 64px;
}
.pipeline-diagram {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 24px 0;
  margin-bottom: 64px;
}
.pipe-stage {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.pipe-box {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 20px 18px;
  min-width: 140px;
  text-align: center;
  position: relative;
}
.pipe-box-red {
  border-color: var(--red);
  background: rgba(187, 68, 68, 0.06);
}
.pipe-box-gold {
  border-color: var(--gold);
  background: rgba(201, 168, 76, 0.06);
}
.pipe-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 6px;
}
.pipe-title {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.pipe-detail {
  font-size: 11px;
  color: var(--text2);
  line-height: 1.4;
  max-width: 140px;
}
.pipe-arrow {
  width: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.pipe-arrow svg {
  width: 100%;
}

.pipe-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.pipe-stat {
  padding: 24px;
  border: 1px solid var(--border);
  background: var(--bg);
}
.ps-val {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 32px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 4px;
}
.ps-label {
  font-size: 12px;
  color: var(--text2);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ---- DIFFERENTIATORS ---- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.diff-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 32px;
  text-align: center;
  transition: border-color 0.25s, transform 0.25s;
}
.diff-card:hover {
  border-color: var(--gold-dim);
  transform: translateY(-2px);
}
.diff-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 20px;
}
.diff-icon svg {
  width: 100%;
  height: 100%;
}
.diff-card h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.diff-card p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.6;
}

/* ---- SCREENSHOTS ---- */
#screenshots {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ss-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}
.ss-card {
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
}
.ss-placeholder {
  aspect-ratio: 16/10;
  background: var(--bg3);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.ss-placeholder img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ss-caption {
  padding: 16px;
  font-size: 13px;
  color: var(--text2);
}
.ss-note {
  text-align: center;
  font-size: 13px;
  color: var(--text2);
  font-style: italic;
}

/* ---- SPECS ---- */
.specs-table-wrap {
  max-width: 700px;
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
}
.specs-table tr {
  border-bottom: 1px solid var(--border);
}
.specs-table td {
  padding: 18px 0;
}
.spec-key {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 1px;
  width: 180px;
  vertical-align: top;
}
.spec-val {
  font-size: 15px;
  color: var(--text);
}

/* ---- DEMO (thumbnail, not iframe) ---- */
#demo {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.demo-desc {
  color: var(--text2);
  font-size: 17px;
  max-width: 600px;
  margin: 0 auto 48px;
}
.demo-thumb {
  display: block;
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto 24px;
  aspect-ratio: 16/9;
  border: 1px solid var(--border);
  overflow: hidden;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.3s;
}
.demo-thumb:hover {
  border-color: var(--gold-dim);
}
.demo-thumb-bg {
  position: absolute;
  inset: 0;
  background: #060a0e;
}
.demo-thumb-svg {
  width: 100%;
  height: 100%;
}
.demo-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  transition: transform 0.3s, filter 0.3s;
}
.demo-play svg {
  width: 100%;
  height: 100%;
}
.demo-thumb:hover .demo-play {
  transform: translate(-50%, -50%) scale(1.12);
  filter: drop-shadow(0 0 20px rgba(201, 168, 76, 0.4));
}
.demo-note {
  font-size: 13px;
  color: var(--text2);
  font-style: italic;
}

/* ---- CONTACT ---- */
#contact {
  padding: 120px 0 80px;
}
.contact-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
}
.contact-info h2 {
  margin-bottom: 8px;
}
.contact-full {
  font-size: 17px;
  color: var(--text);
  margin-bottom: 4px;
}
.contact-loc {
  font-size: 15px;
  color: var(--text2);
  margin-bottom: 16px;
}
.contact-focus {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text2);
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.contact-links {
  display: flex;
  gap: 24px;
}
.contact-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.contact-links a:hover {
  border-bottom-color: var(--gold);
}
.contact-logo {
  text-align: center;
}
.cl-mark {
  width: 160px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  border: 2px solid var(--gold-dim);
  margin: 0 auto 12px;
  letter-spacing: 2px;
}
.cl-mark .t-gold { color: var(--gold); }
.contact-logo > span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--text2);
}
.contact-logo > span .t-gold { color: var(--gold); }

/* ---- FOOTER ---- */
footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
}
footer span {
  font-size: 12px;
  color: var(--text2);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .problem-grid { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .ss-grid { grid-template-columns: 1fr; }
  .pipe-stats { grid-template-columns: repeat(2, 1fr); }

  .pipeline-diagram {
    flex-direction: column;
    align-items: stretch;
  }
  .pipe-stage {
    flex-direction: column;
  }
  .pipe-box {
    width: 100%;
    max-width: none;
  }
  .pipe-detail { max-width: none; }
  .pipe-arrow {
    width: auto;
    height: 32px;
    justify-content: center;
    transform: rotate(90deg);
  }

  .contact-inner {
    flex-direction: column;
    text-align: center;
  }
  .contact-links { justify-content: center; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(8, 12, 16, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    gap: 20px;
  }
  .nav-toggle { display: flex; }

  section { padding: 80px 0; }
  .cap-card { flex-direction: column; }
  .spec-key { width: 140px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .pipe-stats { grid-template-columns: 1fr; }
  #hero h1 { letter-spacing: 4px; font-size: clamp(36px, 10vw, 64px); }
  .hero-etym { letter-spacing: 2px; font-size: 11px; }
}

/* ---- ANIMATIONS ---- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}