:root {
    --bg-main: #050b08;
    --bg-card: rgba(9, 18, 13, 0.92);
    --bg-card-strong: rgba(12, 24, 17, 0.96);
    --border: rgba(0, 255, 153, 0.18);
    --text-main: #dbfff1;
    --text-soft: #89b9a1;
    --text-accent: #00ff9f;
    --text-accent-2: #52ffc0;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.38);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body.landing-body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, rgba(0, 255, 159, 0.12), transparent 28%),
        radial-gradient(circle at top right, rgba(20, 255, 125, 0.08), transparent 24%),
        linear-gradient(180deg, #030806 0%, #08110d 55%, #050906 100%);
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

.landing-grid {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(0, 255, 153, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 153, 0.04) 1px, transparent 1px);
    background-size: 28px 28px;
    -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 88%);
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 88%);
}

.landing-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 42px;
}

.landing-shell > * {
    min-width: 0;
}

.landing-topbar,
.brand-wrap,
.cta-row,
.meta-strip {
    display: flex;
    align-items: center;
}

.landing-topbar {
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 26px;
}

.brand-wrap {
    gap: 14px;
}

.brand-mark {
    width: 14px;
    height: 14px;
    background: linear-gradient(135deg, #a5ffd5 0%, #00ff9f 100%);
    box-shadow: 0 0 20px rgba(0, 255, 159, 0.45);
    transform: rotate(45deg);
}

.eyebrow,
.card-kicker,
.panel-title {
    margin: 0 0 8px;
    color: var(--text-accent);
    font-size: 12px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin: 0;
}

h1 {
    font-size: clamp(28px, 5vw, 42px);
}

h2 {
    font-size: clamp(38px, 8vw, 72px);
    line-height: 0.96;
    max-width: 760px;
    color: #f1fff8;
    text-shadow: 0 0 24px rgba(82, 255, 192, 0.08);
}

h3 {
    font-size: 24px;
    color: #f1fff8;
}

.hero-card,
.info-card,
.install-card,
.showcase-card,
.qr-card {
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--bg-card);
    box-shadow: var(--shadow);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.8fr);
    gap: 24px;
    padding: 34px;
}

.hero-text {
    margin-top: 18px;
    max-width: 620px;
    color: var(--text-soft);
    font-size: 20px;
    line-height: 1.55;
}

.cta-row {
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 20px;
    border-radius: 14px;
    border: 1px solid rgba(82, 255, 192, 0.25);
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    color: #05100c;
    background: linear-gradient(180deg, #a5ffd5 0%, #00ff9f 100%);
    box-shadow: 0 10px 28px rgba(0, 255, 159, 0.22);
}

.btn-secondary {
    color: var(--text-main);
    background: rgba(11, 23, 16, 0.86);
}

.meta-strip {
    flex-wrap: wrap;
    gap: 10px 14px;
    margin-top: 18px;
    color: var(--text-soft);
    font-size: 14px;
}

.meta-strip span,
.release-note {
    border: 1px solid rgba(82, 255, 192, 0.12);
    background: rgba(7, 16, 12, 0.7);
    border-radius: 12px;
    padding: 10px 12px;
}

.hero-panel {
    border: 1px solid rgba(82, 255, 192, 0.14);
    border-radius: 18px;
    background: var(--bg-card-strong);
    padding: 22px;
}

.feature-list,
.steps-list {
    margin: 0;
    padding-left: 18px;
    color: var(--text-soft);
    line-height: 1.7;
}

.feature-list li + li,
.steps-list li + li {
    margin-top: 8px;
}

.release-note {
    margin-top: 22px;
}

.release-note span {
    display: block;
    margin-bottom: 8px;
    color: var(--text-accent);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.release-note strong {
    color: var(--text-main);
    line-height: 1.5;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.info-card,
.install-card,
.showcase-card,
.qr-card {
    padding: 24px;
}

.info-card p,
.install-card li {
    margin-top: 12px;
    color: var(--text-soft);
    line-height: 1.65;
}

.install-card {
    margin-top: 16px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: end;
    margin-bottom: 18px;
}

.section-copy {
    max-width: 460px;
    color: var(--text-soft);
    line-height: 1.6;
}

.showcase-card,
.download-grid {
    margin-top: 16px;
}

.screen-grid,
.download-grid {
    display: grid;
    gap: 16px;
}

.screen-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.download-grid {
    grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
    align-items: stretch;
}

.phone-shot {
    position: relative;
    border-radius: 30px;
    border: 1px solid rgba(82, 255, 192, 0.16);
    background: linear-gradient(180deg, #0b120f 0%, #08110d 100%);
    padding: 16px 14px 18px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
    min-width: 0;
}

.phone-notch {
    width: 90px;
    height: 16px;
    border-radius: 0 0 12px 12px;
    margin: 0 auto 12px;
    background: rgba(0, 0, 0, 0.48);
}

.phone-screen {
    border-radius: 22px;
    border: 1px solid rgba(82, 255, 192, 0.12);
    background:
        radial-gradient(circle at top right, rgba(0, 255, 159, 0.08), transparent 28%),
        linear-gradient(180deg, rgba(6, 15, 11, 0.98) 0%, rgba(9, 20, 15, 0.98) 100%);
    min-height: 430px;
    padding: 16px;
}

.screen-top,
.screen-row,
.screen-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    min-width: 0;
}

.screen-top,
.screen-title,
.screen-input,
.screen-nav,
.security-item,
.bubble {
    border: 1px solid rgba(82, 255, 192, 0.12);
    border-radius: 14px;
}

.screen-top,
.screen-nav {
    padding: 10px 12px;
    color: var(--text-soft);
    font-size: 13px;
    background: rgba(7, 16, 12, 0.74);
    flex-wrap: wrap;
}

.screen-title {
    margin-top: 14px;
    padding: 14px;
    background: rgba(0, 255, 159, 0.07);
    color: var(--text-main);
    font-size: 22px;
    font-weight: 700;
}

.screen-list,
.bubble-col,
.security-stack {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.screen-row,
.security-item {
    padding: 12px;
    background: rgba(7, 16, 12, 0.74);
    color: var(--text-soft);
    overflow-wrap: anywhere;
}

.screen-input {
    margin-top: 14px;
    padding: 12px;
    color: var(--text-soft);
    background: rgba(7, 16, 12, 0.74);
}

.screen-nav {
    margin-top: 14px;
}

.bubble {
    max-width: 86%;
    padding: 12px;
    color: var(--text-main);
}

.bubble-in {
    background: rgba(15, 30, 21, 0.96);
}

.bubble-out {
    margin-left: auto;
    background: rgba(0, 255, 159, 0.12);
}

.qr-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-items: center;
    justify-content: space-between;
}

.qr-wrap {
    width: min(100%, 280px);
    aspect-ratio: 1 / 1;
    border-radius: 18px;
    border: 1px solid rgba(82, 255, 192, 0.12);
    background: rgba(7, 16, 12, 0.74);
    display: grid;
    place-items: center;
    padding: 12px;
}

.qr-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
}

@supports not ((-webkit-backdrop-filter: blur(12px)) or (backdrop-filter: blur(12px))) {
    .hero-card,
    .info-card,
    .install-card,
    .showcase-card,
    .qr-card,
    .hero-panel {
        background: rgba(9, 18, 13, 0.98);
    }
}

@media (max-width: 980px) {
    .landing-shell {
        width: min(100% - 20px, 1180px);
        padding-top: 18px;
    }

    .landing-topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-card,
    .info-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }

    .hero-card {
        padding: 24px 18px;
    }

    .hero-text {
        font-size: 17px;
    }
}

@media (max-width: 640px) {
    h2 {
        font-size: clamp(32px, 13vw, 52px);
        line-height: 1.02;
    }

    .btn,
    .meta-strip span {
        width: 100%;
    }

    .cta-row {
        align-items: stretch;
    }

    .info-card,
    .install-card,
    .hero-panel,
    .showcase-card,
    .qr-card {
        padding: 18px;
    }

    .phone-screen {
        min-height: 360px;
    }
}