@font-face { font-family: 'Codec Pro'; src: local('Codec Pro'), local('CodecPro-Regular'); font-weight: 400; }
@font-face { font-family: 'Codec Pro'; src: local('Codec Pro Bold'), local('CodecPro-Bold'); font-weight: 700; }
@font-face { font-family: 'Codec Pro'; src: local('Codec Pro SemiBold'), local('CodecPro-SemiBold'); font-weight: 600; }

:root {
  --primary: #1b17ff;
  --primary-light: #EEEDFF;
  --primary-dark: #1310C0;
  --bg: #FFFFFF;
  --bg-alt: #F6F6FB;
  --text: #0A0E27;
  --text-secondary: #5A5F7A;
  --text-on-primary: #FFFFFF;
  --border: #E2E3EC;
  --font-h: 'Codec Pro','Inter',-apple-system,sans-serif;
  --font-b: 'Inter',-apple-system,sans-serif;
  --radius: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-b); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; background: var(--bg); }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }

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

/* === NAV === */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.nav-logo svg { height: 28px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--text-secondary); transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.btn-primary { color: var(--text-on-primary); }
.nav-links a.btn-primary:hover { color: var(--text-on-primary); }
.btn { display: inline-flex; align-items: center; justify-content: center; font-family: var(--font-b); font-weight: 600; border-radius: var(--radius); border: none; cursor: pointer; transition: all .2s; text-decoration: none; }
.btn-primary { background: var(--primary); color: var(--text-on-primary); padding: 10px 24px; font-size: 14px; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(27,23,255,.2); }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-outline-lg { padding: 14px 32px; font-size: 16px; background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline-lg:hover { background: var(--primary-light); }

/* === HERO === */
.hero { padding: 140px 0 80px; text-align: center; background: radial-gradient(ellipse at center top, rgba(27,23,255,.04) 0%, transparent 60%); }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 100px; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; margin-bottom: 24px; }
.hero-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.hero h1 { font-family: var(--font-h); font-size: 56px; font-weight: 700; line-height: 1.08; letter-spacing: -0.03em; max-width: 780px; margin: 0 auto 20px; }
.hero p { font-size: 19px; line-height: 1.6; color: var(--text-secondary); max-width: 620px; margin: 0 auto 36px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* === SECTION COMMON === */
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-label { font-family: var(--font-h); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; color: var(--primary); margin-bottom: 12px; }
.section-header h2 { font-family: var(--font-h); font-size: 40px; font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 16px; }
.section-header p { font-size: 17px; color: var(--text-secondary); line-height: 1.6; }

/* === PAGE HERO (for inner pages) === */
.page-hero { padding: 140px 0 60px; text-align: center; background: radial-gradient(ellipse at center top, rgba(27,23,255,.04) 0%, transparent 60%); }
.page-hero .section-label { margin-bottom: 12px; }
.page-hero h1 { font-family: var(--font-h); font-size: 48px; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; max-width: 780px; margin: 0 auto 16px; }
.page-hero p { font-size: 18px; color: var(--text-secondary); max-width: 620px; margin: 0 auto; line-height: 1.6; }

/* === PROBLEM === */
.problem { padding: 100px 0; background: var(--bg-alt); }
.problem-intro { max-width: 800px; margin: 0 auto 48px; text-align: center; }
.problem-label { font-family: var(--font-h); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; color: var(--primary); margin-bottom: 12px; }
.problem h2 { font-family: var(--font-h); font-size: 40px; font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 20px; }
.problem-body { font-size: 17px; color: var(--text-secondary); line-height: 1.7; max-width: 800px; margin: 0 auto 48px; text-align: center; }
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pain-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.pain-card-icon { width: 48px; height: 48px; border-radius: 12px; background: #FEE2E2; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.pain-card-icon img { width: 26px; height: 26px; }
.pain-card h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.pain-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* === HOW IT WORKS === */
.how-it-works { padding: 100px 0; }
.steps { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.step-card { background: var(--bg-alt); border-radius: var(--radius); padding: 32px; position: relative; }
.step-num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: var(--primary); color: var(--text-on-primary); font-family: var(--font-h); font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.step-card h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* === FEATURES === */
.features { padding: 100px 0; background: var(--bg-alt); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: all .3s; }
.feature-card:hover { box-shadow: 0 8px 32px rgba(10,14,39,.08); transform: translateY(-2px); }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.feature-icon img { width: 26px; height: 26px; }
.feature-card h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* === FEATURE CARD LINK === */
a.feature-card-link { color: inherit; text-decoration: none; display: block; }
a.feature-card-link h3 { transition: color .2s; }
a.feature-card-link:hover h3 { color: var(--primary); }

/* === PLATFORM SUMMARY === */
.platform-summary { padding: 80px 0; background: var(--bg); text-align: center; }
.platform-summary .section-header p { max-width: 680px; margin-left: auto; margin-right: auto; }
.platform-summary .btn { margin-top: 8px; }

/* === FEATURE DETAIL === */
.feature-detail { padding: 80px 0 100px; }
.feature-detail-body { max-width: 760px; margin: 0 auto; }
.feature-detail-body > p { font-size: 17px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 24px; }
.feature-detail-nav { margin-top: 48px; display: flex; gap: 12px; flex-wrap: wrap; }

/* === ARCHITECTURE === */
.architecture { padding: 100px 0; background: var(--text); color: #FFFFFF; }
.architecture .section-label { color: #7B75FF; }
.architecture .section-header h2 { color: #FFFFFF; }
.architecture .section-header p { color: #8B8FA8; }
.arch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.arch-card { background: #12141F; border: 1px solid #1E2133; border-radius: var(--radius); padding: 28px; transition: all .3s; }
.arch-card:hover { border-color: rgba(27,23,255,.3); box-shadow: 0 0 32px rgba(27,23,255,.08); }
.arch-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(27,23,255,.15); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.arch-icon img { width: 26px; height: 26px; filter: brightness(0) invert(1); }
.arch-card h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 8px; color: #E8E9EE; }
.arch-card p { font-size: 14px; color: #8B8FA8; line-height: 1.6; }

/* === TOOLS VS SKILLS === */
.tools-vs-skills { padding: 100px 0; }
.tvs-body { max-width: 800px; margin: 0 auto; }
.tvs-body > p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.tvs-body > p strong { color: var(--text); }
.tvs-reasons { margin-top: 32px; }
.tvs-reasons h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.tvs-list { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.tvs-list li { font-size: 15px; color: var(--text-secondary); line-height: 1.6; padding-left: 20px; position: relative; }
.tvs-list li::before { content: ''; position: absolute; left: 0; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }
.tvs-list li strong { color: var(--text); }
.tvs-bottom { margin-top: 32px; font-size: 16px; color: var(--text); line-height: 1.7; font-weight: 500; }

/* === LLM-FIRST DISCOVERY === */
.llm-discovery { padding: 100px 0; background: var(--bg-alt); }
.llm-body { max-width: 800px; margin: 0 auto; }
.llm-body > p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.graduation-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 32px 0; }
.grad-step { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.grad-step-label { font-family: var(--font-h); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--primary); margin-bottom: 8px; }
.grad-step h4 { font-family: var(--font-h); font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.grad-step p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
.exec-paths { margin-top: 40px; }
.exec-paths h3 { font-family: var(--font-h); font-size: 20px; font-weight: 600; margin-bottom: 20px; }
.exec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.exec-table th { text-align: left; padding: 12px 16px; background: var(--bg); font-weight: 600; border-bottom: 2px solid var(--border); }
.exec-table td { padding: 10px 16px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
.exec-table td:first-child { font-weight: 500; color: var(--text); }

/* === BUYERS === */
.buyers { padding: 100px 0; background: var(--bg-alt); }
.buyers-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.buyer-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.buyer-role { font-family: var(--font-h); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--primary); margin-bottom: 8px; }
.buyer-card h3 { font-family: var(--font-h); font-size: 20px; font-weight: 600; margin-bottom: 12px; }
.buyer-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* === SECURITY === */
.security { padding: 100px 0; background: var(--text); color: #FFFFFF; }
.security .section-label { color: #7B75FF; }
.security .section-header h2 { color: #FFFFFF; }
.security .section-header p { color: #8B8FA8; }
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.security-card { background: #12141F; border: 1px solid #1E2133; border-radius: var(--radius); padding: 28px; transition: all .3s; }
.security-card:hover { border-color: rgba(27,23,255,.3); box-shadow: 0 0 32px rgba(27,23,255,.08); }
.security-card h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 8px; color: #E8E9EE; }
.security-card p { font-size: 14px; color: #8B8FA8; line-height: 1.6; }

/* === PRICING === */
.pricing { padding: 100px 0; }
.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 48px; }
.pricing-card { background: var(--bg-alt); border-radius: var(--radius); padding: 28px; }
.pricing-card h3 { font-family: var(--font-h); font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.pricing-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.pricing-cta { text-align: center; }

/* === FAQ === */
.faq { padding: 100px 0; background: var(--bg-alt); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 24px 0; background: none; border: none; cursor: pointer; font-family: var(--font-h); font-size: 17px; font-weight: 600; color: var(--text); text-align: left; line-height: 1.4; }
.faq-question::after { content: '+'; font-size: 24px; font-weight: 300; color: var(--text-secondary); flex-shrink: 0; margin-left: 16px; transition: transform .2s; }
.faq-item.open .faq-question::after { content: '\2212'; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer-inner { padding: 0 0 24px; font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

/* === CTA === */
.cta { padding: 100px 0; text-align: center; background: radial-gradient(ellipse at center, rgba(27,23,255,.06) 0%, transparent 60%); }
.cta h2 { font-family: var(--font-h); font-size: 44px; font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 16px; }
.cta p { font-size: 18px; color: var(--text-secondary); max-width: 560px; margin: 0 auto 36px; line-height: 1.6; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* === FOOTER === */
.footer { padding: 64px 0 48px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 13px; color: var(--text-secondary); margin-top: 12px; line-height: 1.6; }
.footer-col h4 { font-family: var(--font-h); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--text); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--text-secondary); transition: color .2s; }
.footer-col ul li a:hover { color: var(--text); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--border); }
.footer-text { font-size: 13px; color: var(--text-secondary); }

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .features-grid, .arch-grid, .buyers-grid, .security-grid { grid-template-columns: 1fr; }
  .pain-grid, .steps, .graduation-steps, .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero h1 { font-size: 38px; }
  .page-hero h1 { font-size: 34px; }
  .section-header h2, .problem h2, .cta h2 { font-size: 32px; }
  .nav-links a:not(.btn) { display: none; }
  .exec-table { font-size: 13px; }
  .exec-table th, .exec-table td { padding: 8px 10px; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}