/*
Theme Name: Lecture AI
Theme URI: https://example.com/lecture-ai
Author: Lecture AI
Description: Editable marketing website for Lecture AI with Home, Download, Support, Privacy Policy and Terms of Use pages.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: lecture-ai
*/
:root{--ink:#10164f;--muted:#64709a;--blue:#2868ff;--purple:#8b2cff;--bg:#f7f8ff;--card:#fff;--line:#e7e9f7}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.6}a{color:var(--blue);text-decoration:none}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav-wrap{max-width:1180px;margin:auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}.brand{font-size:26px;font-weight:800;color:var(--ink)}.brand span,.gradient-text{background:linear-gradient(90deg,var(--blue),var(--purple));-webkit-background-clip:text;color:transparent}.menu{display:flex;gap:22px;list-style:none;margin:0;padding:0}.menu a{color:var(--ink);font-weight:600}.hero{background:linear-gradient(135deg,#f8fbff,#f7f2ff);padding:72px 24px}.hero-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1fr 1.05fr;gap:54px;align-items:center}.eyebrow{font-weight:700;color:var(--purple)}h1{font-size:clamp(44px,6vw,76px);line-height:1.02;margin:12px 0 20px;letter-spacing:-2px}h2{line-height:1.15}.lead{font-size:20px;color:var(--muted);max-width:620px}.hero img{width:100%;border-radius:28px;box-shadow:0 25px 70px rgba(56,49,160,.18)}.buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-block;padding:13px 22px;border-radius:14px;font-weight:700}.btn-primary{color:#fff;background:linear-gradient(90deg,var(--blue),var(--purple))}.btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}.section{padding:78px 24px}.wrap{max-width:1180px;margin:auto}.center{text-align:center}.section-title{font-size:40px;margin:0 0 12px}.section-sub{color:var(--muted);font-size:18px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}.card{padding:28px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 10px 30px rgba(34,40,120,.06)}.icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,#eaf1ff,#f1e7ff);font-size:27px}.page-hero{padding:68px 24px 36px;background:linear-gradient(135deg,#f8fbff,#f7f2ff)}.content{max-width:900px;margin:auto;padding:48px 24px 80px}.legal-section{padding:22px 0;border-bottom:1px solid var(--line)}.legal-section h2{font-size:24px}.legal-section p{color:#343b63}.support-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.footer{padding:36px 24px;background:#0e1442;color:#dfe4ff}.footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.footer a{color:#fff}.notice{padding:18px;border-radius:16px;background:#f6f7ff;border:1px solid var(--line)}@media(max-width:800px){.hero-grid{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}.menu{gap:10px;font-size:14px}.support-grid{grid-template-columns:1fr}}@media(max-width:520px){.cards{grid-template-columns:1fr}.nav-wrap{align-items:flex-start;gap:10px;flex-direction:column}h1{font-size:44px}}