/* ============================================
   LexiRule — Static Website Stylesheet
   Premium dark theme with gold accents
   ============================================ */

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

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --gold:        #C9A84C;
  --gold-light:  #E6C97A;
  --gold-dark:   #A07830;
  --dark:        #0A0C10;
  --dark-2:      #111318;
  --dark-3:      #181C24;
  --dark-4:      #1E2330;
  --slate:       #8892A4;
  --slate-light: #C0C8D8;
  --white:       #F5F7FA;
  --accent-blue: #4F8EF7;
  --accent-teal: #32C8A0;
  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 20px;
  --shadow-gold: 0 0 40px rgba(201, 168, 76, 0.15);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--dark);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ── Typography ── */
h1, h2, h3, h4 { line-height: 1.2; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem);   font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }

.gold        { color: var(--gold); }
.gold-grad   { background: linear-gradient(135deg, var(--gold-light), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.slate       { color: var(--slate-light); }
.section-tag { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); background: rgba(201,168,76,0.1); border: 1px solid rgba(201,168,76,0.25); padding: 4px 14px; border-radius: 99px; margin-bottom: 1rem; }

/* ── Layout ── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section   { padding: 100px 0; }
.section--sm { padding: 60px 0; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 99px;
  font-weight: 600; font-size: 0.95rem;
  border: none; cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
  color: var(--dark);
  box-shadow: 0 4px 20px rgba(201,168,76,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(201,168,76,0.45); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.2);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); background: rgba(201,168,76,0.06); }

/* ── Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 24px;
  transition: background var(--transition), backdrop-filter var(--transition);
}
.nav.scrolled {
  background: rgba(10,12,16,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav__inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; gap: 40px;
  height: 68px;
}
.nav__logo { display: flex; align-items: center; gap: 0; flex-shrink: 0; }
.nav__logo .icon-wrap { height: 36px; width: 28px; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.nav__logo .icon-wrap img { height: 100%; width: 100%; object-fit: contain; transform: scale(2.8); }
.nav__logo .text-wrap { height: 34px; overflow: hidden; display: flex; align-items: center; margin-left: -4px; }
.nav__logo .text-wrap img { height: 30px; width: auto; object-fit: contain; }

.nav__links { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.nav__links a { font-size: 0.9rem; color: var(--slate-light); transition: color var(--transition); }
.nav__links a:hover { color: var(--white); }
.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__hamburger span { display: block; width: 22px; height: 2px; background: var(--slate-light); border-radius: 2px; transition: all var(--transition); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px 24px 80px;
  background:
    radial-gradient(ellipse 60% 50% at 70% 50%, rgba(201,168,76,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(79,142,247,0.05) 0%, transparent 50%),
    var(--dark);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.015'%3E%3Ccircle cx='1' cy='1' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero__inner { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(201,168,76,0.08); border: 1px solid rgba(201,168,76,0.2);
  padding: 6px 16px; border-radius: 99px;
  font-size: 0.8rem; font-weight: 600; color: var(--gold);
  margin-bottom: 24px;
}
.hero__badge::before { content: '●'; font-size: 0.5rem; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }

.hero h1 { margin-bottom: 24px; }
.hero p { font-size: 1.1rem; color: var(--slate-light); margin-bottom: 40px; max-width: 480px; line-height: 1.75; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 32px; margin-top: 48px; }
.hero__stat span:first-child { display: block; font-size: 1.8rem; font-weight: 800; color: var(--gold); }
.hero__stat span:last-child  { font-size: 0.8rem; color: var(--slate); }

/* Dashboard Mockup */
.hero__visual { position: relative; }
.mockup {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), var(--shadow-gold);
}
.mockup__bar { height: 40px; background: var(--dark-2); border-bottom: 1px solid rgba(255,255,255,0.06); display: flex; align-items: center; padding: 0 16px; gap: 8px; }
.mockup__dot { width: 10px; height: 10px; border-radius: 50%; }
.mockup__dot:nth-child(1) { background: #FF5F57; }
.mockup__dot:nth-child(2) { background: #FEBC2E; }
.mockup__dot:nth-child(3) { background: #28C840; }
.mockup__body { display: flex; }
.mockup__sidebar { width: 140px; background: var(--dark-2); border-right: 1px solid rgba(255,255,255,0.05); padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; }
.mock-item { height: 28px; border-radius: 6px; background: rgba(255,255,255,0.04); display: flex; align-items: center; padding: 0 10px; gap: 8px; font-size: 0.7rem; color: var(--slate); }
.mock-item.active { background: rgba(201,168,76,0.12); color: var(--gold); }
.mock-item .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--slate); flex-shrink: 0; }
.mock-item.active .dot { background: var(--gold); }
.mockup__content { flex: 1; padding: 20px; }
.mock-rule { margin-bottom: 10px; padding: 12px 14px; border-radius: 8px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); display: flex; align-items: center; gap: 10px; }
.mock-rule .badge { width: 20px; height: 20px; border-radius: 50%; font-size: 0.6rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.mock-rule .badge.pass  { background: rgba(50,200,160,0.2); color: var(--accent-teal); }
.mock-rule .badge.fail  { background: rgba(255,80,80,0.15); color: #FF6060; }
.mock-rule .badge.warn  { background: rgba(254,188,46,0.15); color: #FEBC2E; }
.mock-rule__text { flex: 1; }
.mock-rule__title { font-size: 0.7rem; font-weight: 600; color: var(--slate-light); margin-bottom: 2px; }
.mock-rule__sub   { font-size: 0.6rem; color: var(--slate); }
.mock-rule__pts   { font-size: 0.7rem; font-weight: 700; color: var(--accent-teal); }
.mock-score-bar   { margin-top: 16px; padding: 14px; background: rgba(201,168,76,0.06); border: 1px solid rgba(201,168,76,0.15); border-radius: 8px; }
.mock-score-bar__label { font-size: 0.65rem; color: var(--slate); margin-bottom: 6px; }
.mock-score-bar__num   { font-size: 1.4rem; font-weight: 800; color: var(--gold); }
.mock-score-bar__track { height: 4px; background: rgba(255,255,255,0.08); border-radius: 2px; margin-top: 8px; overflow: hidden; }
.mock-score-bar__fill  { height: 100%; background: linear-gradient(90deg, var(--gold-dark), var(--gold-light)); border-radius: 2px; width: 72%; }

/* ── Features ── */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 64px; }
.feature-card {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.feature-card:hover { border-color: rgba(201,168,76,0.25); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 48px; height: 48px; border-radius: var(--radius-sm); background: rgba(201,168,76,0.1); border: 1px solid rgba(201,168,76,0.2); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; font-size: 1.4rem; }
.feature-card h3 { margin-bottom: 10px; color: var(--white); }
.feature-card p  { font-size: 0.9rem; color: var(--slate); line-height: 1.7; }

/* ── How It Works ── */
.how-it-works { background: var(--dark-2); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 64px; position: relative; }
.steps::before { content: ''; position: absolute; top: 40px; left: 10%; right: 10%; height: 1px; background: linear-gradient(90deg, transparent, rgba(201,168,76,0.3), rgba(201,168,76,0.3), transparent); }
.step { text-align: center; padding: 0 20px; }
.step__num { width: 80px; height: 80px; border-radius: 50%; background: var(--dark-3); border: 2px solid rgba(201,168,76,0.3); display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; position: relative; z-index: 1; }
.step__num span { font-size: 1.5rem; font-weight: 800; color: var(--gold); }
.step h3 { margin-bottom: 10px; }
.step p  { font-size: 0.88rem; color: var(--slate); line-height: 1.7; }

/* ── Use Cases ── */
.use-cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 64px; }
.use-case {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex; gap: 24px;
  transition: all var(--transition);
}
.use-case:hover { border-color: rgba(201,168,76,0.2); box-shadow: 0 16px 40px rgba(0,0,0,0.25); }
.use-case__icon { font-size: 2.5rem; flex-shrink: 0; }
.use-case__content h3 { margin-bottom: 10px; }
.use-case__content p  { font-size: 0.9rem; color: var(--slate); line-height: 1.7; }
.use-case__tag { display: inline-block; font-size: 0.72rem; font-weight: 600; color: var(--accent-teal); background: rgba(50,200,160,0.1); border: 1px solid rgba(50,200,160,0.2); padding: 3px 10px; border-radius: 99px; margin-top: 12px; }

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, var(--dark-3), var(--dark-4));
  border: 1px solid rgba(201,168,76,0.15);
  border-radius: var(--radius-lg);
  padding: 72px 60px;
  text-align: center;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-gold);
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(201,168,76,0.07) 0%, transparent 60%);
}
.cta-banner > * { position: relative; }
.cta-banner h2 { margin-bottom: 16px; }
.cta-banner p  { font-size: 1rem; color: var(--slate-light); margin-bottom: 36px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
footer {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 32px;
}
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer__brand p { font-size: 0.875rem; color: var(--slate); margin-top: 16px; max-width: 260px; line-height: 1.7; }
.footer__col h4 { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate); margin-bottom: 16px; }
.footer__col a { display: block; font-size: 0.875rem; color: var(--slate); margin-bottom: 10px; transition: color var(--transition); }
.footer__col a:hover { color: var(--white); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 28px; display: flex; align-items: center; justify-content: space-between; }
.footer__bottom p { font-size: 0.8rem; color: var(--slate); }
.footer__socials { display: flex; gap: 16px; }
.footer__socials a { width: 36px; height: 36px; borders-radius: 8px; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); color: var(--slate); font-size: 0.85rem; transition: all var(--transition); border-radius: 8px; }
.footer__socials a:hover { background: rgba(201,168,76,0.1); border-color: rgba(201,168,76,0.3); color: var(--gold); }

/* ── Divider ── */
.divider { height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.07), transparent); margin: 0; }

/* ── Page: Features ── */
.page-hero { padding: 140px 24px 80px; text-align: center; background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(201,168,76,0.08) 0%, transparent 60%), var(--dark); }
.page-hero h1 { margin-bottom: 20px; }
.page-hero p  { font-size: 1.1rem; color: var(--slate-light); max-width: 560px; margin: 0 auto; }

.big-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; padding: 80px 0; }
.big-feature + .big-feature { border-top: 1px solid rgba(255,255,255,0.06); }
.big-feature--reverse { direction: rtl; }
.big-feature--reverse > * { direction: ltr; }
.big-feature__content h2 { margin-bottom: 16px; }
.big-feature__content p  { color: var(--slate-light); line-height: 1.8; margin-bottom: 24px; }
.big-feature__list { display: flex; flex-direction: column; gap: 12px; }
.big-feature__list li { display: flex; align-items: flex-start; gap: 12px; font-size: 0.9rem; color: var(--slate-light); }
.big-feature__list li::before { content: '✓'; color: var(--gold); font-weight: 700; flex-shrink: 0; }

.visual-card { background: var(--dark-3); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg); padding: 28px; }

/* ── About Page ── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.value-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 60px; }
.value-card { background: var(--dark-3); border: 1px solid rgba(255,255,255,0.07); border-radius: var(--radius); padding: 28px 24px; }
.value-card .icon { font-size: 2rem; margin-bottom: 14px; }
.value-card h3 { margin-bottom: 10px; }
.value-card p  { font-size: 0.875rem; color: var(--slate); line-height: 1.7; }

/* ── Contact ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contact-form { background: var(--dark-3); border: 1px solid rgba(255,255,255,0.07); border-radius: var(--radius-lg); padding: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--slate-light); margin-bottom: 8px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  background: var(--dark-2); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm); color: var(--white);
  font-family: 'Inter', sans-serif; font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,168,76,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--dark-2); }
.contact-info h3 { margin-bottom: 16px; }
.contact-info p  { color: var(--slate-light); margin-bottom: 32px; line-height: 1.7; }
.contact-detail { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-detail .icon { width: 44px; height: 44px; border-radius: var(--radius-sm); background: rgba(201,168,76,0.1); border: 1px solid rgba(201,168,76,0.2); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
.contact-detail h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 4px; }
.contact-detail p  { font-size: 0.85rem; color: var(--slate); margin: 0; }

/* ── Mobile Nav ── */
.nav__mobile { display: none; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .steps::before { display: none; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .big-feature { grid-template-columns: 1fr; }
  .big-feature--reverse { direction: ltr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav__links, .nav__cta .btn-outline { display: none; }
  .nav__hamburger { display: flex; margin-left: auto; }
  .nav__mobile { display: none; position: fixed; top: 68px; left: 0; right: 0; background: rgba(10,12,16,0.97); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,0.08); padding: 20px 24px; flex-direction: column; gap: 16px; z-index: 99; }
  .nav__mobile.open { display: flex; }
  .nav__mobile a { font-size: 1rem; color: var(--slate-light); padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
  .nav__mobile a:last-child { border: none; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .value-cards { grid-template-columns: 1fr; }
  .cta-banner { padding: 48px 28px; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 16px; text-align: center; }
  .hero__stats { gap: 24px; }
}

/* ── Animations ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 0.6s ease-out both; }
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }