:root {
    --bg: #020813;
    --bg2: #0a1628;
    --bg3: #111d33;
    --fg: #E4F4F6;
    --fg-secondary: #8a9bb0;
    --teal: #14B8A6;
    --teal-soft: #0a9396;
    --teal-glow: rgba(20, 184, 166, 0.12);
    --border: rgba(255,255,255,0.08);
    --border-subtle: rgba(255,255,255,0.04);
    --hover: rgba(255,255,255,0.08);
    --icon-mask: #020813;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Jost', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #F3F5FA;
        --bg2: #E8EBF2;
        --bg3: #DDE1EA;
        --fg: #00102E;
        --fg-secondary: #4a5568;
        --teal: #0a9396;
        --teal-soft: #0b7a7d;
        --teal-glow: rgba(10, 147, 150, 0.08);
        --border: rgba(0,0,0,0.08);
        --border-subtle: rgba(0,0,0,0.06);
        --hover: rgba(0,0,0,0.04);
        --icon-mask: #F3F5FA;
    }
}

/* -- Hero -- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 80px 24px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--teal-glow) 0%, transparent 70%);
    pointer-events: none;
}

.translations {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.tl {
    position: absolute;
    font-size: 13px;
    color: var(--fg);
    opacity: 0.30;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

@media (prefers-color-scheme: light) {
    .tl { opacity: 0.30; }
}

.hero .logo,
.hero h1,
.hero .tagline,
.hero .cta-row {
    position: relative;
    z-index: 1;
}

.logo {
    width: 88px;
    height: 88px;
    margin-bottom: 24px;
    border-radius: 20px;
    overflow: hidden;
}

.hero h1 {
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}

.hero h1 span {
    color: var(--teal);
}

.hero .tagline {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--fg-secondary);
    max-width: 520px;
    margin-bottom: 40px;
}

.cta-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--teal);
    color: #fff;
}

.btn-primary:hover {
    background: var(--teal-soft);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg3);
    color: var(--fg);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--hover);
}

/* -- Sections -- */
section {
    padding: 80px 24px;
}

.container {
    max-width: 960px;
    margin: 0 auto;
}

.section-label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--teal);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}

.section-desc {
    font-size: 15px;
    color: var(--fg-secondary);
    max-width: 600px;
    margin-bottom: 40px;
}

/* -- How it works -- */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
}

.step {
    padding: 28px 24px;
    background: var(--bg2);
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
}

.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--teal-glow);
    color: var(--teal);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}

.step h3 {
    font-size: 15px;
    margin-bottom: 6px;
}

.step p {
    font-size: 14px;
    color: var(--fg-secondary);
}

/* -- Features -- */
.features {
    background: var(--bg2);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 640px) {
    .feature-grid { grid-template-columns: 1fr; }
}

.feature {
    padding: 28px 24px;
    background: var(--bg3);
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
}

.feature-icon {
    font-size: 28px;
    margin-bottom: 14px;
    display: block;
}

.feature h3 {
    font-size: 15px;
    margin-bottom: 6px;
}

.feature p {
    font-size: 14px;
    color: var(--fg-secondary);
}

/* -- Use cases -- */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.use-case {
    padding: 24px;
    border-radius: 14px;
    border: 1px solid rgba(20, 184, 166, 0.15);
    background: linear-gradient(135deg, var(--teal-glow), transparent);
}

.use-case h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

.use-case p {
    font-size: 14px;
    color: var(--fg-secondary);
}

/* -- Privacy -- */
.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.privacy-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    font-size: 15px;
    color: var(--fg-secondary);
}

.privacy-item::before {
    content: '';
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    margin-top: 8px;
    border-radius: 50%;
    background: var(--teal);
}

/* -- Rooms -- */
.rooms {
    background: var(--bg2);
}

.rooms-flex {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.rooms-flex .section-desc {
    margin-bottom: 24px;
}

.room-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.room-features li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 15px;
    color: var(--fg-secondary);
}

.room-features li::before {
    content: '';
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    margin-top: 8px;
    border-radius: 50%;
    background: var(--teal);
}

/* -- Footer -- */
footer {
    padding: 40px 24px;
    text-align: center;
    color: var(--fg-secondary);
    font-size: 14px;
    border-top: 1px solid var(--border-subtle);
}

footer a {
    color: var(--teal);
    text-decoration: none;
}

/* -- Responsive -- */
@media (max-width: 640px) {
    section { padding: 60px 20px; }
    .rooms-flex { grid-template-columns: 1fr; }
}