/* ===========================
   TRYSIL — Landing Page CSS
   =========================== */

:root {
  --primary:       #0055CC;
  --primary-dark:  #003D99;
  --primary-light: #EBF2FF;
  --accent:        #CC2200;
  --text-primary:  #1A202C;
  --text-secondary:#4A5568;
  --text-muted:    #718096;
  --bg:            #FFFFFF;
  --bg-alt:        #F7F9FC;
  --border:        #E2E8F0;
  --code-bg:       #F1F5F9;
  --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:     0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg:     0 10px 30px rgba(0,0,0,.10), 0 4px 8px rgba(0,0,0,.06);
  --radius:        10px;
  --radius-lg:     16px;
  --font:          'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:     'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --transition:    .2s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===========================
   LAYOUT
   =========================== */

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -.03em;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===========================
   NAVIGATION
   =========================== */

.nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}

.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.nav-logo-img {
  height: 17px;
  width: auto;
}

.logo-t {
  color: var(--primary);
  font-weight: 900;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  display: block;
  padding: 6px 14px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover { color: var(--primary); background: var(--primary-light); }

.nav-github {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 32px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: transparent;
  font-size: .8rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.lang-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===========================
   HERO
   =========================== */

.hero {
  padding: 100px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, #F0F5FF 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}

.hero-badge {
  display: block;
  margin-bottom: 20px;
}

.hero-logo-img {
  height: 28px;
  width: auto;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.15;
  max-width: 780px;
  margin: 0 auto 20px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 36px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: .9375rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,85,204,.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(0,85,204,.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  padding: 16px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.stat { text-align: center; }

.stat-value {
  display: block;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -.03em;
}

.stat-label {
  display: block;
  font-size: .78rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ===========================
   FEATURES
   =========================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: #C5D8F5;
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -.01em;
}

.feature-card p {
  font-size: .9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===========================
   CODE EXAMPLE
   =========================== */

.example-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-btn {
  padding: 10px 20px;
  border: none;
  background: none;
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}

.tab-btn:hover { color: var(--primary); }

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.code-wrapper {
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow: hidden;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.code-block {
  font-family: var(--font-mono);
  font-size: .845rem;
  line-height: 1.75;
  padding: 32px 36px;
  overflow-x: auto;
  margin: 0;
  white-space: pre;
}

/* Syntax tokens */
.c  { color: #718096; font-style: italic; }    /* comment */
.kw { color: #0055CC; font-weight: 600; }       /* keyword / attribute */
.s  { color: #276749; }                         /* string */
.n  { color: #9C4221; }                         /* number */

/* ===========================
   DATABASES
   =========================== */

.db-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.db-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.db-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.db-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 80px;
  height: 48px;
  border-radius: var(--radius);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: #fff;
}

.db-sqlite    { background: #003B57; font-size: .7rem; }
.db-postgres  { background: #336791; font-size: .65rem; }
.db-sqlserver { background: #CC2200; font-size: .6rem;  }
.db-firebird  { background: #E05A00; font-size: .7rem;  }

.db-card p {
  font-size: .875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.db-note {
  text-align: center;
  font-size: .875rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

/* ===========================
   FOOTER
   =========================== */

.footer {
  background: var(--text-primary);
  color: rgba(255,255,255,.6);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
}

.footer-brand {
  color: #fff;
}

.footer-brand p {
  font-size: .8rem;
  font-weight: 400;
  color: rgba(255,255,255,.45);
  margin-top: 4px;
}

.footer-logo-img {
  height: 10px;
  width: auto;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}

.footer-links a:hover { color: #fff; }

.footer-copy {
  text-align: right;
  font-size: .8rem;
}

/* ===========================
   ANIMATIONS
   =========================== */

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .45s ease, transform .45s ease;
}

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

/* ===========================
   RESPONSIVE
   =========================== */

@media (max-width: 960px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner  { grid-template-columns: 1fr; text-align: center; }
  .footer-copy   { text-align: center; }
  .footer-links  { justify-content: center; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .db-grid       { grid-template-columns: 1fr; }
  .hero-stats    { flex-direction: column; gap: 16px; }
  .stat-divider  { width: 40px; height: 1px; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    gap: 4px;
  }
  .nav-burger { display: flex; }

  .code-block { font-size: .78rem; padding: 20px 20px; }
}