:root { font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif; color: #eaf0fa; background: #090f1d; scroll-behavior: smooth; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(ellipse at 68% 7%, #1a2a3f 0, #0b1424 34%, #090f1d 68%); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid #8fcac4; outline-offset: 3px; }
button:disabled { cursor: wait; opacity: .65; }
[hidden] { display: none !important; }
.site-header { border-bottom: 1px solid #ffffff12; }
.header-inner, .shell, .footer { width: min(100% - 64px, 1200px); margin: 0 auto; }
.header-inner { height: 88px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 750; letter-spacing: -.03em; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: #8ed3c9; color: #0c2026; font-size: 23px; font-weight: 850; }
.brand small { display: block; margin-top: 3px; color: #8e9db1; font-size: 9px; letter-spacing: .16em; }
.header-link { font-size: 13px; font-weight: 650; color: #c8d6e5; text-decoration: none; }
.header-link span { color: #8ed3c9; margin-left: 8px; }
.preview-notice { margin: 20px 0 -45px; padding: 12px 16px; border: 1px solid #536a79; border-radius: 9px; color: #c6d6e0; font-size: 13px; line-height: 1.5; background: #182b3a; }
.hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .75fr); gap: clamp(48px, 8vw, 110px); align-items: center; padding: 105px 0 94px; }
.eyebrow { margin: 0 0 18px; color: #85d0c4; font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.eyebrow-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: #85d0c4; }
.hero h1 { margin: 0; font-size: clamp(42px, 5.2vw, 68px); font-weight: 720; line-height: 1.1; letter-spacing: -.055em; }
.hero h1 span { color: #91d4cb; }
.hero-intro { max-width: 500px; color: #a7b6c8; font-size: 17px; line-height: 1.75; margin: 25px 0 30px; }
.hero-action { display: inline-flex; gap: 32px; align-items: center; padding: 15px 19px; border: 1px solid #4d777a; border-radius: 9px; color: #ddf5f0; font-size: 14px; font-weight: 700; text-decoration: none; }
.hero-action:hover { background: #ffffff0a; }
.hero-action span { color: #8ed3c9; }
.hero-caption { margin: 68px 0 18px; color: #6f8399; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.hero-points { display: flex; flex-wrap: wrap; gap: 32px; }
.hero-points strong, .hero-points span { display: block; }
.hero-points strong { color: #d7e4f0; font-size: 12px; }
.hero-points span { margin-top: 6px; color: #8799ad; font-size: 11px; }
.card { background: #121d2d; border: 1px solid #314054; border-radius: 18px; padding: 32px; box-shadow: 0 24px 70px #0005; }
.login-card { position: relative; }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 34px; }
.card-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: #244543; color: #92dbcd; font-size: 21px; }
.card-tag { color: #8899ac; font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.card h1, .card h2 { margin: 0; font-size: 25px; letter-spacing: -.035em; }
.intro { color: #a2b1c3; line-height: 1.6; margin: 10px 0 25px; font-size: 14px; }
label { display: block; color: #dce5f0; font-size: 13px; font-weight: 650; margin: 18px 0 8px; }
input { width: 100%; padding: 14px; color: #fff; background: #0b1422; border: 1px solid #38495c; border-radius: 8px; }
input::placeholder { color: #718197; }
.primary, .secondary, .danger { border: 0; border-radius: 9px; min-height: 48px; padding: 12px 20px; font-weight: 700; }
.primary { color: #0b2526; background: #8ed3c9; }
.primary:hover { background: #a8e1d8; }
form .primary { width: 100%; margin-top: 24px; display: flex; justify-content: center; gap: 12px; align-items: center; }
.secondary { color: #e8f4f3; background: #2a4351; }
.danger { color: #ffd9df; background: #602f3e; }
.note { color: #8fa0b4; font-size: 12px; line-height: 1.6; margin: 22px 0 0; }
.feature-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; padding: 35px 0 60px; border-top: 1px solid #ffffff1b; }
.feature-number { color: #77bdb4; font-size: 11px; font-weight: 700; }
.feature-strip h2 { margin: 12px 0 8px; font-size: 16px; }
.feature-strip p { max-width: 320px; margin: 0; color: #8fa0b4; font-size: 13px; line-height: 1.7; }
.room-card { max-width: 620px; margin: 65px auto; }
.room-heading { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.text-button { color: #b7d7d4; background: none; border: 0; padding: 5px; }
.status-card { display: flex; gap: 12px; align-items: center; padding: 18px; border: 1px solid #34485a; background: #0d1726; border-radius: 12px; }
.status-card strong, .status-card span:not(.status-dot) { display: block; }
.status-card span:not(.status-dot) { margin-top: 4px; color: #aebbd2; font-size: 13px; }
.status-dot { flex: 0 0 10px; height: 10px; border-radius: 50%; background: #8290a8; }
.status-dot.connected { background: #69d6a5; box-shadow: 0 0 12px #69d6a599; }
.controls { display: flex; gap: 10px; margin-top: 20px; }
.controls button { flex: 1; }
#participants-section h2, .download-card h2 { font-size: 16px; margin: 0; }
#participants-section { margin-top: 25px; }
ul { padding: 0; margin: 0; list-style: none; }
li { padding: 10px 0; border-bottom: 1px solid #2b3a55; color: #dbe5f8; }
.download-card { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 30px; padding: 20px; border: 1px solid #34485a; border-radius: 12px; background: #0d1726; }
.download-card .eyebrow { margin-bottom: 8px; font-size: 9px; }
.download-card p:not(.eyebrow) { color: #98aabe; font-size: 12px; line-height: 1.6; margin: 8px 0 0; }
.download-card button { flex-shrink: 0; font-size: 12px; }
.message { min-height: 24px; color: #ffbec5; line-height: 1.5; text-align: center; }
.footer { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid #ffffff12; padding: 25px 0 35px; color: #8293a8; font-size: 11px; }
.footer strong { color: #cdd9e7; margin-right: 14px; }
@media (max-width: 850px) { .hero { grid-template-columns: 1fr; gap: 45px; padding: 70px 0; } .login-card { max-width: 560px; } .hero-caption { margin-top: 45px; } }
@media (max-width: 580px) { .header-inner, .shell, .footer { width: min(100% - 36px, 1200px); } .header-inner { height: 76px; } .hero { padding: 55px 0; } .hero h1 { font-size: 42px; } .card { padding: 24px; } .feature-strip { grid-template-columns: 1fr; gap: 25px; } .download-card { align-items: start; flex-direction: column; } .footer { flex-direction: column; } .footer strong, .footer div span { display: block; margin-bottom: 5px; } }