:root {
  --bg: #07101d;
  --bg-soft: #0d192a;
  --card: #12233a;
  --card-light: #172b46;
  --text: #f5f7fb;
  --muted: #b9c6d9;
  --line: rgba(255,255,255,0.12);
  --accent: #42a5ff;
  --accent-2: #8dd7ff;
  --white: #fff;
  --success: #a8e6cf;
  --shadow: 0 24px 80px rgba(0,0,0,0.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(66,165,255,0.24), transparent 32rem),
    linear-gradient(180deg, var(--bg), #0a1424 60%, #07101e);
  line-height: 1.6;
}

a { color: inherit; }
img { max-width: 100%; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.centered { text-align: center; margin-left: auto; margin-right: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7,16,29,0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 850; letter-spacing: 0.06em; white-space: nowrap; }
.brand img { width: 46px; height: 46px; object-fit: contain; }
.nav-links { display: flex; gap: 24px; color: var(--muted); font-size: 0.94rem; }
.nav-links a { text-decoration: none; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--white); }

.eyebrow { margin: 0 0 12px; color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.78rem; font-weight: 850; }
h1, h2, h3 { margin: 0; line-height: 1.08; }
h1 { max-width: 760px; font-size: clamp(2.8rem, 6vw, 5.7rem); letter-spacing: -0.06em; }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); letter-spacing: -0.045em; }
h3 { font-size: 1.35rem; }
p { margin-top: 0; }

.hero { padding: 92px 0 66px; display: grid; grid-template-columns: 1.06fr 0.94fr; gap: 54px; align-items: center; }
.hero-text { max-width: 740px; margin: 26px 0 0; color: var(--muted); font-size: 1.18rem; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }
.microcopy { margin: 18px 0 0; color: var(--muted); font-size: 0.9rem; }

.button { min-height: 50px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 999px; text-decoration: none; font-weight: 850; transition: transform .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--accent); color: #04111f; }
.button.primary:hover { background: #75bdff; }
.button.secondary { border-color: var(--line); background: rgba(255,255,255,0.05); }
.button.secondary:hover { background: rgba(255,255,255,0.1); }

.calculator-card, .card, .audience-card, .session-card, .faq-list details, .final-cta, .workflow-example, .example-summary-grid article, .about-photo-wrap {
  background: rgba(18,35,58,0.8);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.calculator-card { padding: 34px; border-radius: 30px; }
.calculator-card h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); }
.calculator-grid { margin-top: 26px; display: grid; gap: 16px; }
.calculator-grid label { display: grid; gap: 7px; color: var(--muted); font-size: 0.88rem; font-weight: 750; }
.calculator-grid input { width: 100%; min-height: 48px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,0.07); color: var(--white); font: inherit; font-size: 1rem; }
.calculator-grid input:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.currency-input { display: grid; grid-template-columns: 38px 1fr; align-items: center; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,0.07); overflow: hidden; }
.currency-input > span { text-align: center; color: var(--accent-2); font-size: 1.1rem; }
.currency-input input { border: 0; border-left: 1px solid var(--line); border-radius: 0; background: transparent; }
.calculator-result { margin-top: 24px; padding: 22px; display: grid; border-radius: 18px; background: linear-gradient(135deg, rgba(66,165,255,0.22), rgba(141,215,255,0.08)); border: 1px solid rgba(141,215,255,0.25); }
.calculator-result span { color: var(--muted); font-size: 0.9rem; }
.calculator-result strong { margin: 4px 0; font-size: clamp(2.5rem, 5vw, 4.2rem); line-height: 1; letter-spacing: -0.05em; }
.calculator-result small { color: var(--accent-2); }
.disclaimer { margin: 14px 0 0; color: var(--muted); font-size: 0.76rem; }

.proof-band { padding: 32px 0 20px; background: rgba(255,255,255,0.035); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.proof-grid div { display: grid; gap: 5px; }
.proof-grid strong { color: var(--white); font-size: clamp(1.8rem, 3vw, 2.7rem); letter-spacing: -0.04em; }
.proof-grid span { color: var(--muted); font-size: 0.88rem; line-height: 1.35; }
.proof-note { margin-top: 16px; color: #8798b1; font-size: 0.7rem; }

.section { padding: 82px 0; }
.section-heading { max-width: 790px; margin-bottom: 34px; }
.section-heading > p:not(.eyebrow) { margin: 18px 0 0; color: var(--muted); font-size: 1.05rem; }
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { min-height: 220px; padding: 26px; border-radius: 24px; }
.card > span { display: inline-block; margin-bottom: 30px; color: var(--accent-2); font-weight: 900; }
.card p { margin: 14px 0 0; color: var(--muted); }

.audience-section { background: rgba(255,255,255,0.025); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.audience-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.audience-card { padding: 36px; border-radius: 28px; }
.audience-card h3 { max-width: 490px; font-size: clamp(1.7rem, 3vw, 2.4rem); }
.audience-card > p:not(.eyebrow) { margin: 18px 0; color: var(--muted); }
ul { padding-left: 20px; color: var(--muted); }
li { margin: 10px 0; }

.example-section { background: linear-gradient(180deg, rgba(66,165,255,0.035), rgba(255,255,255,0.015)); border-bottom: 1px solid var(--line); }
.workflow-example { margin: 0; padding: 16px; border-radius: 30px; overflow: hidden; }
.workflow-example img { width: 100%; display: block; border-radius: 20px; }
.workflow-example figcaption { padding: 14px 10px 2px; color: var(--muted); font-size: 0.82rem; text-align: center; }
.example-summary-grid { margin-top: 22px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.example-summary-grid article { padding: 26px; border-radius: 22px; }
.example-summary-grid span { display: inline-block; margin-bottom: 18px; color: var(--accent-2); font-weight: 900; }
.example-summary-grid p { margin: 12px 0 0; color: var(--muted); }

.session-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.session-card { position: relative; padding: 30px; border-radius: 26px; }
.session-card.featured { border-color: rgba(66,165,255,0.7); transform: translateY(-10px); }
.session-time { display: block; margin-bottom: 20px; color: var(--accent-2); font-weight: 850; }
.session-card p { margin: 15px 0; color: var(--muted); }
.recommended { position: absolute; top: -14px; right: 22px; padding: 6px 12px; border-radius: 999px; background: var(--accent); color: #04111f; font-size: 0.7rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.07em; }
.action-row { margin-top: 38px; }

.about-section { background: rgba(255,255,255,0.025); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr); gap: 60px; align-items: center; }
.about-photo-wrap { position: relative; padding: 14px; border-radius: 30px; }
.about-photo { width: 100%; display: block; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 21px; }
.photo-note { position: absolute; left: 28px; right: 28px; bottom: 28px; padding: 9px 12px; border-radius: 999px; background: rgba(7,16,29,0.86); color: var(--muted); font-size: 0.72rem; text-align: center; backdrop-filter: blur(10px); }
.about-copy > p:not(.eyebrow) { margin: 20px 0 0; color: var(--muted); font-size: 1.05rem; }
.about-points { margin: 28px 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.about-points span { padding: 13px 15px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.045); color: var(--text); font-weight: 750; }
.text-link { color: var(--accent-2); font-weight: 850; text-decoration: none; }
.text-link:hover { color: var(--white); }

.faq-section { background: rgba(255,255,255,0.025); border-top: 1px solid var(--line); }
.faq-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 48px; align-items: start; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { padding: 20px 22px; border-radius: 18px; }
.faq-list summary { cursor: pointer; font-weight: 800; }
.faq-list p { margin: 14px 0 0; color: var(--muted); }

.final-cta { margin-top: 70px; margin-bottom: 82px; padding: 34px; border-radius: 30px; display: grid; grid-template-columns: 110px 1fr auto; gap: 28px; align-items: center; }
.final-cta img { width: 110px; max-height: 90px; object-fit: contain; }
.final-cta h2 { max-width: 680px; font-size: clamp(1.7rem, 3vw, 2.7rem); }

.footer { padding: 28px 0; border-top: 1px solid var(--line); color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer p { margin: 0; }
.footer a { color: var(--accent-2); text-decoration: none; }

@media (max-width: 960px) {
  .hero, .faq-wrap, .about-grid { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-grid, .session-grid, .example-summary-grid { grid-template-columns: repeat(2, 1fr); }
  .session-card.featured { transform: none; }
  .about-photo-wrap { max-width: 520px; }
  .final-cta { grid-template-columns: 90px 1fr; }
  .final-cta .button { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1160px); }
  .nav { padding: 12px 0; align-items: flex-start; flex-direction: column; gap: 10px; }
  .nav-links { width: 100%; gap: 14px; overflow-x: auto; padding-bottom: 3px; }
  .hero { padding-top: 58px; gap: 36px; }
  .calculator-card { padding: 24px; }
  .proof-grid, .problem-grid, .audience-grid, .session-grid, .example-summary-grid { grid-template-columns: 1fr; }
  .proof-grid { gap: 18px; }
  .proof-grid div { padding-bottom: 14px; border-bottom: 1px solid var(--line); }
  .section { padding: 62px 0; }
  .workflow-example { padding: 8px; border-radius: 20px; }
  .workflow-example img { border-radius: 14px; }
  .about-points { grid-template-columns: 1fr; }
  .final-cta { grid-template-columns: 1fr; text-align: center; }
  .final-cta img { margin: 0 auto; }
}