/* ═══════════════════════════════════════
   KontractAI Marketing Site
   Typography: Source Serif 4 (display) + Outfit (UI)
   Accent: #2B7A3E
   ═══════════════════════════════════════ */

:root {
  --accent: #2B7A3E;
  --accent-hover: #348A48;
  --accent-soft: rgba(43,122,62,.08);
  --accent-soft2: rgba(43,122,62,.14);
  --bg: #FAFBFC;
  --bg-white: #FFFFFF;
  --bg-dark: #0C1A12;
  --bg-dark2: #122218;
  --border: #DDE1E8;
  --border-subtle: #EEF0F3;
  --tx: #1A1F2E;
  --tx-muted: #5A6278;
  --tx-dim: #8B93A8;
  --tx-white: #FFFFFF;
  --green: #2B9E5A;
  --green-soft: rgba(43,158,90,.1);
  --yellow: #C68A1A;
  --yellow-soft: rgba(198,138,26,.1);
  --red: #D04040;
  --red-soft: rgba(208,64,64,.1);
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,.04), 0 4px 12px rgba(0,0,0,.03);
  --shadow-lg: 0 4px 24px rgba(0,0,0,.06);
  --font-display: 'Source Serif 4', Georgia, serif;
  --font-ui: 'Outfit', 'Segoe UI', system-ui, sans-serif;
  --container: 1140px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-ui); color: var(--tx); background: var(--bg); line-height: 1.6; overflow-x: hidden; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 24px; border-radius: 6px; font-family: var(--font-ui); font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer; transition: all .15s ease; border: none; white-space: nowrap; }
.btn-primary { background: var(--accent); color: var(--tx-white); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(43,122,62,.25); }
.btn-outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover { background: var(--accent-soft); }
.btn-ghost { background: transparent; color: var(--tx-muted); }
.btn-ghost:hover { color: var(--tx); background: rgba(0,0,0,.04); }
.btn-white { background: var(--tx-white); color: var(--accent); }
.btn-white:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255,255,255,.2); }
.btn-lg { padding: 14px 32px; font-size: 15px; border-radius: 8px; }

.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(250,251,252,.85); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-subtle); transition: all .2s; }
.nav-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; height: 64px; gap: 40px; }
.nav-logo img { display: block; }
.nav-links { display: flex; gap: 32px; flex: 1; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--tx-muted); text-decoration: none; transition: color .15s; }
.nav-links a:hover { color: var(--tx); }
.nav-actions { display: flex; gap: 10px; align-items: center; }
.nav-mobile-toggle { display: none; }

.hero { position: relative; padding: 160px 0 100px; overflow: hidden; background: linear-gradient(170deg, #FAFBFC 0%, #F0F5F2 40%, #E8F0EB 100%); }
.hero-bg-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(43,122,62,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(43,122,62,.04) 1px, transparent 1px); background-size: 60px 60px; mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 20%, transparent 70%); }
.hero .container { position: relative; text-align: center; }
.hero-badge { display: inline-block; padding: 6px 16px; border-radius: 100px; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft2); border: 1px solid rgba(43,122,62,.15); margin-bottom: 28px; }
.hero-title { font-family: var(--font-display); font-size: clamp(40px, 6vw, 68px); font-weight: 700; line-height: 1.08; letter-spacing: -.03em; color: var(--tx); margin-bottom: 24px; }
.hero-sub { max-width: 620px; margin: 0 auto 36px; font-size: 17px; line-height: 1.65; color: var(--tx-muted); }
.hero-cta { display: flex; gap: 14px; justify-content: center; margin-bottom: 64px; }
.hero-proof { display: flex; gap: 48px; justify-content: center; align-items: center; }
.hero-stat { text-align: center; }
.hero-stat-num { display: block; font-family: var(--font-display); font-size: 36px; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 6px; }
.hero-stat-label { font-size: 12px; color: var(--tx-dim); line-height: 1.4; }
.hero-stat-divider { width: 1px; height: 40px; background: var(--border); }

.social-proof { padding: 48px 0; border-bottom: 1px solid var(--border-subtle); background: var(--bg-white); }
.social-proof-label { text-align: center; font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--tx-dim); margin-bottom: 20px; }
.social-proof-row { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.proof-item { font-size: 14px; font-weight: 600; color: var(--tx-muted); padding: 8px 20px; border: 1px solid var(--border); border-radius: 100px; background: var(--bg); }

.section-header { text-align: center; margin-bottom: 56px; }
.section-badge { display: inline-block; padding: 4px 14px; border-radius: 100px; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); margin-bottom: 16px; }
.section-title { font-family: var(--font-display); font-size: clamp(28px, 4vw, 42px); font-weight: 700; line-height: 1.15; letter-spacing: -.025em; color: var(--tx); margin-bottom: 16px; }
.section-sub { max-width: 560px; margin: 0 auto; font-size: 16px; color: var(--tx-muted); line-height: 1.6; }

.features { padding: 100px 0; background: var(--bg-white); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg); transition: all .2s ease; }
.feature-card:hover { border-color: rgba(43,122,62,.25); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.feature-card-lg { grid-column: span 1; }
.feature-icon { width: 48px; height: 48px; border-radius: 10px; background: var(--accent-soft2); color: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feature-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--tx); }
.feature-card p { font-size: 14px; color: var(--tx-muted); line-height: 1.6; }

.showcase { padding: 100px 0; background: var(--bg); }
.showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.showcase-text .section-badge { margin-bottom: 16px; }
.showcase-text .section-title { text-align: left; margin-bottom: 16px; }
.showcase-text p { font-size: 15px; color: var(--tx-muted); line-height: 1.65; margin-bottom: 24px; }
.showcase-list { list-style: none; }
.showcase-list li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: 14px; color: var(--tx-muted); }
.showcase-list li::before { content: ""; position: absolute; left: 0; top: 7px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.showcase-visual { position: relative; }
.showcase-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.showcase-card-header { display: flex; align-items: center; gap: 10px; padding: 14px 20px; border-bottom: 1px solid var(--border-subtle); background: var(--bg); }
.showcase-card-dot { width: 8px; height: 8px; border-radius: 50%; }
.showcase-card-dot.green { background: var(--green); }
.showcase-card-title { font-size: 12px; font-weight: 700; color: var(--tx); letter-spacing: .02em; }
.showcase-field { display: flex; align-items: center; gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--border-subtle); }
.showcase-field:last-child { border-bottom: none; }
.showcase-field-label { font-size: 10px; font-weight: 700; color: var(--tx-dim); text-transform: uppercase; letter-spacing: .04em; min-width: 140px; flex-shrink: 0; }
.showcase-field-value { font-size: 13px; color: var(--tx); flex: 1; line-height: 1.4; }
.showcase-conf { font-size: 9px; font-weight: 700; padding: 2px 8px; border-radius: 3px; letter-spacing: .05em; flex-shrink: 0; }
.showcase-conf.high { color: var(--green); background: var(--green-soft); }
.showcase-conf.med { color: var(--yellow); background: var(--yellow-soft); }
.showcase-conf.low { color: var(--red); background: var(--red-soft); }

.integrations { padding: 100px 0; background: var(--bg-white); }
.integration-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.integration-item { text-align: center; padding: 32px 24px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg); transition: all .2s; }
.integration-item:hover { border-color: rgba(43,122,62,.2); box-shadow: var(--shadow); }
.integration-icon { font-size: 28px; margin-bottom: 12px; }
.integration-name { font-size: 15px; font-weight: 700; color: var(--tx); margin-bottom: 8px; }
.integration-desc { font-size: 13px; color: var(--tx-muted); line-height: 1.5; }

.cta { padding: 100px 0; }
.cta-inner { text-align: center; padding: 72px 40px; border-radius: 20px; background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark2) 100%); position: relative; overflow: hidden; }
.cta-inner::before { content: ""; position: absolute; top: -50%; right: -20%; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(43,122,62,.15) 0%, transparent 70%); }
.cta-inner h2 { font-family: var(--font-display); font-size: clamp(26px, 3.5vw, 36px); font-weight: 700; color: var(--tx-white); margin-bottom: 14px; position: relative; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,.65); margin-bottom: 32px; position: relative; }

.footer { padding: 64px 0 32px; background: var(--bg-white); border-top: 1px solid var(--border-subtle); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand img { margin-bottom: 14px; }
.footer-brand p { font-size: 13px; color: var(--tx-muted); line-height: 1.6; max-width: 280px; }
.footer-col h4 { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--tx-dim); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: var(--tx-muted); text-decoration: none; margin-bottom: 10px; transition: color .12s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--border-subtle); }
.footer-bottom p { font-size: 12px; color: var(--tx-dim); }

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card-lg { grid-column: span 2; }
  .showcase-grid { grid-template-columns: 1fr; gap: 40px; }
  .integration-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links, .nav-actions { display: none; }
  .nav-links.open, .nav-actions.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg-white); padding: 20px 24px; border-bottom: 1px solid var(--border); gap: 14px; }
  .nav-actions.open { top: auto; border-top: 1px solid var(--border-subtle); }
  .nav-mobile-toggle { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; margin-left: auto; }
  .nav-mobile-toggle span { display: block; width: 20px; height: 2px; background: var(--tx); border-radius: 1px; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 36px; }
  .hero-proof { flex-direction: column; gap: 20px; }
  .hero-stat-divider { width: 40px; height: 1px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card-lg { grid-column: span 1; }
  .integration-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-inner { padding: 48px 24px; }
}

.page-hero { padding: 140px 0 60px; background: linear-gradient(170deg, #FAFBFC 0%, #F0F5F2 100%); text-align: center; }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(32px, 4.5vw, 48px); font-weight: 700; letter-spacing: -.02em; color: var(--tx); margin-bottom: 12px; }
.page-hero p { font-size: 17px; color: var(--tx-muted); max-width: 540px; margin: 0 auto; }
.page-content { padding: 64px 0 100px; background: var(--bg-white); }
.page-content .container { max-width: 760px; }
.page-content h2 { font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--tx); margin: 40px 0 14px; }
.page-content h2:first-child { margin-top: 0; }
.page-content p { font-size: 15px; color: var(--tx-muted); line-height: 1.7; margin-bottom: 16px; }
.page-content ul { margin-bottom: 16px; padding-left: 0; list-style: none; }
.page-content ul li { position: relative; padding-left: 20px; margin-bottom: 8px; font-size: 15px; color: var(--tx-muted); line-height: 1.6; }
.page-content ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 1px; background: var(--accent); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 900px; margin: 0 auto; }
.contact-form { max-width: none; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 12px; font-weight: 700; color: var(--tx-dim); letter-spacing: .04em; text-transform: uppercase; margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--tx); font-family: var(--font-ui); font-size: 14px; outline: none; transition: border-color .15s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-success { display: none; text-align: center; padding: 40px; background: var(--green-soft); border-radius: var(--radius-lg); border: 1px solid rgba(43,158,90,.2); }
.form-success.show { display: block; }
.form-success h3 { font-family: var(--font-display); font-size: 22px; color: var(--green); margin-bottom: 8px; }
.form-success p { color: var(--tx-muted); font-size: 14px; }
.contact-info h3 { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--tx); margin-bottom: 12px; }
.contact-info p { font-size: 14px; color: var(--tx-muted); line-height: 1.6; margin-bottom: 24px; }
.contact-detail { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 20px; }
.contact-detail-icon { width: 36px; height: 36px; border-radius: 8px; background: var(--accent-soft2); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
.contact-detail-text h4 { font-size: 13px; font-weight: 700; color: var(--tx); margin-bottom: 2px; }
.contact-detail-text p { font-size: 13px; color: var(--tx-muted); margin-bottom: 0; }

.blog-placeholder { text-align: center; padding: 80px 40px; border: 2px dashed var(--border); border-radius: var(--radius-lg); background: var(--bg); }
.blog-placeholder h3 { font-family: var(--font-display); font-size: 22px; color: var(--tx-muted); margin-bottom: 8px; }
.blog-placeholder p { color: var(--tx-dim); font-size: 14px; }

.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 32px 0; }
.security-card { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); }
.security-card h3 { font-size: 16px; font-weight: 700; color: var(--tx); margin-bottom: 8px; }
.security-card p { font-size: 14px; color: var(--tx-muted); line-height: 1.6; margin-bottom: 0; }
@media (max-width: 640px) { .security-grid { grid-template-columns: 1fr; } .contact-grid { grid-template-columns: 1fr; } .form-row { grid-template-columns: 1fr; } }

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.hero-badge, .hero-title, .hero-sub, .hero-cta, .hero-proof { animation: fadeUp .6s ease forwards; opacity: 0; }
.hero-badge { animation-delay: .1s; }
.hero-title { animation-delay: .2s; }
.hero-sub { animation-delay: .35s; }
.hero-cta { animation-delay: .5s; }
.hero-proof { animation-delay: .65s; }