:root {
    /* App proportions — sbt-m/src/lib/tabBarShape.ts
       Bar spans 11/13 of screen; ref 390pt → 4 cells of 82.5pt; pill 76 + gap 6.5. */
    --bar-length-fraction: calc(11 / 13);
    --pill-width-fraction: calc(76 / 82.5);
    --pill-gap-fraction: calc(6.5 / 82.5);
    --edge-line-thickness: 1px;
    --edge-line-gap: 3px;

    /* App proportions — sbt-m/src/lib/graphShape.ts
       Curve amplitudes expressed as a fraction of wavelength (= screen width). */
    --sun-amplitude-fraction: calc(10 / 19);
    --moon-amplitude-fraction: calc(5 / 14);
    --dot-diameter-fraction-v: calc(1 / 23);
    --dot-diameter-fraction-h: calc(1 / 47);

    --color-primary: #FF9752;
    --color-primary-glow: rgba(255, 151, 82, 0.18);
    --color-bg: #121212;
    --color-bg-elevated: #1E1E1E;
    --color-bg-soft: #2C2C2E;
    --color-border: #333333;
    --color-text: #E8E8E8;
    --color-text-secondary: #E8E8E8;
    --color-text-muted: #E8E8E8;
    --color-success: #66BB6A;
    --color-error: #EF5350;

    --bg-image-opacity: 0.80;
    --bg-image-underlay: #ffc7a1;

    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --section-pad-y: clamp(4rem, 10vw, 8rem);
    --container: min(1180px, calc(100vw * var(--bar-length-fraction)));
    --radius: 14px;
    --radius-sm: 8px;
    --transition: 200ms ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-y: auto;
}

body {
    margin: 0;
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 17px;
    overflow: clip;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

button {
    font: inherit;
    cursor: pointer;
    border: 0;
}

h1,
h2,
h3,
h4 {
    margin: 0;
    line-height: 1.15;
    letter-spacing: -0.02em;
    font-weight: 600;
}

h1 {
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
    font-weight: 300;
}

h2 {
    font-size: clamp(2rem, 4.2vw, 3.25rem);
    font-weight: 300;
    padding-bottom: 0.75rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin: 0 0 1rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ───── Header ───── */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem clamp(1.25rem, 4vw, 3rem);
    background: rgba(18, 18, 18, 0.4);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 300ms ease, opacity 300ms ease;
    pointer-events: none;
}

.site-header.is-scrolled {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--color-primary);
}

.brand-mark {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    border-radius: 6px;
    object-fit: cover;
}

.brand-name {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--color-text);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2.5vw, 2rem);
    font-size: 0.94rem;
    color: var(--color-text-secondary);
}

.site-nav a:hover {
    color: var(--color-text);
}

.site-nav .nav-cta {
    padding: 0.55rem 1.1rem;
    border: 1px solid var(--color-primary);
    border-radius: 999px;
    color: var(--color-primary);
}

.site-nav .nav-cta:hover {
    background: var(--color-primary-glow);
    color: var(--color-primary);
}

@media (max-width: 680px) {
    .site-nav a:not(.nav-cta) {
        display: none;
    }
}

/* ───── Shared ───── */

.section-head {
    position: relative;
    z-index: 1;
    max-width: 780px;
    margin: 0 auto 3.5rem;
    text-align: center;
}

.section-head-left {
    margin: 0 0 2.5rem;
    text-align: left;
}

.section-lede {
    font-size: 1.12rem;
    color: var(--color-text-secondary);
    max-width: 58ch;
    margin-inline: auto;
}

.section-head-left .section-lede {
    margin-inline: 0;
}

/* Typography shadows for legibility over images */
.hero-copy h1,
.hero-copy .lede,
.hero-copy .hero-note,
.section-head h2,
.section-head .section-lede,
.cycle-step h3,
.cycle-step p,
.cycle-step-kicker {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.95rem 1.8rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    transition: transform var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
}

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

.btn-primary {
    background: var(--color-primary);
    color: #121212;
}

.btn-primary:hover {
    background: var(--color-primary);
    opacity: 0.88;
}

.btn-ghost {
    background: linear-gradient(135deg, rgba(30, 30, 30, 0.65) 0%, rgba(18, 18, 18, 0.25) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.02);
    color: var(--color-text);
}

.btn-ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ───── Hero ───── */

.hero {
    position: relative;
    padding: clamp(4rem, 9vw, 7rem) clamp(1.25rem, 4vw, 3rem) clamp(5rem, 10vw, 8rem);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 55% 40% at 70% 20%, var(--color-primary-glow), transparent 70%),
        radial-gradient(ellipse 60% 50% at 10% 90%, rgba(255, 151, 82, 0.08), transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: -250px;
    left: 0;
    background-image: url('images/bg/4k_image1.webp');
    background-size: auto 100%;
    background-color: var(--bg-image-underlay);
    background-position: center top;
    background-repeat: no-repeat;
    background-blend-mode: multiply;
    opacity: var(--bg-image-opacity);
    mix-blend-mode: screen;
    pointer-events: none;
    z-index: 0;
    -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}

@media (max-width: 2666px) {
    .hero::after {
        background-image: url('images/bg/2k_image1.webp');
    }
}

@media (max-width: 888px) {
    .hero::after {
        background-image: url('images/bg/mobile_image1.webp');
    }
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-copy h1 {
    margin: 0.5rem 0 1.5rem;
}

.lede {
    font-size: 1.18rem;
    color: var(--color-text-secondary);
    max-width: 48ch;
    margin-bottom: 2rem;
    margin-inline: auto;
}

.hero-ctas {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    justify-content: center;
}

.hero-note {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin: 0;
}

@media (max-width: 880px) {
    .lede {
        max-width: 54ch;
    }
}

/* ───── Cycle (interactive) ───── */

.cycle {
    padding: var(--section-pad-y) clamp(1.25rem, 4vw, 3rem);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    position: relative;
}

.cycle::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 55% 45% at 50% 90%, var(--color-primary-glow), transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.cycle::after {
    content: "";
    position: absolute;
    top: -250px;
    right: 0;
    bottom: 0;
    left: 0;
    background-image: url('images/bg/4k_image2.webp');
    background-size: cover;
    background-color: var(--bg-image-underlay);
    background-position: center;
    background-blend-mode: multiply;
    opacity: var(--bg-image-opacity);
    mix-blend-mode: screen;
    pointer-events: none;
    z-index: 0;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 25%, black 75%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, black 25%, black 75%, transparent 100%);
}

@media (max-width: 2560px) {
    .cycle::after {
        background-image: url('images/bg/2k_image2.webp');
    }
}

@media (max-width: 880px) {
    .cycle::after {
        background-image: url('images/bg/mobile_image2.webp');
    }
}

.cycle-interactive {
    position: relative;
    z-index: 1;
    max-width: var(--container);
    margin: 0 auto;
}

.cycle-tabs {
    /* Outer padding = inter-pill gap / 2 (app tab bar layout: leftover space = one gap, split). */
    --cycle-tab-gap: 6px;
    display: inline-flex;
    padding: calc(var(--cycle-tab-gap) / 2);
    margin: 0 auto 2.5rem;
    background: linear-gradient(135deg, rgba(30, 30, 30, 0.65) 0%, rgba(18, 18, 18, 0.25) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.02);
    border-radius: 999px;
    gap: var(--cycle-tab-gap);
}

.cycle-interactive>.cycle-tabs {
    display: flex;
    width: fit-content;
    margin-inline: auto;
}

.cycle-tab {
    padding: 0.7rem 1.4rem;
    border-radius: 999px;
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: color var(--transition), background-color var(--transition);
    white-space: nowrap;
}

.cycle-tab:hover {
    color: var(--color-text);
}

.cycle-tab.is-active {
    background: var(--color-primary);
    color: #121212;
}

.cycle-stage {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

.cycle-graph {
    position: relative;
    padding: 1rem;
}

.cycle-svg {
    width: 100%;
    height: auto;
    display: none;
}

.cycle-svg.is-active {
    display: block;
    animation: cycleFade 380ms ease;
}

@keyframes cycleFade {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cycle-svg .horizon {
    stroke: var(--color-text-muted);
    stroke-width: 1;
    stroke-dasharray: 2 4;
}

.cycle-svg .curve {
    fill: none;
    stroke: var(--color-text-secondary);
    stroke-width: 2;
    opacity: 0.55;
}

.cycle-svg .curve-telling {
    stroke: var(--color-primary);
    stroke-width: 2.5;
    opacity: 0.85;
}

/* Sundial hotspots */

.hotspot {
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.hotspot:hover {
    color: var(--color-text);
}

.hotspot-ring {
    fill: none;
    stroke: currentColor;
    stroke-width: 1;
    opacity: 0.3;
    transition: opacity var(--transition), stroke var(--transition), r var(--transition);
}

.hotspot-fill {
    fill: var(--color-bg-elevated);
    stroke: var(--color-border);
    stroke-width: 1;
    transition: fill var(--transition), stroke var(--transition);
}

.hotspot-icon {
    pointer-events: none;
    transform-box: fill-box;
    transform-origin: center;
    transition: transform var(--transition);
}

.hotspot.is-active .hotspot-icon {
    transform: scale(1.1667);
}

.hotspot-label {
    fill: var(--color-text-muted);
    font-size: 11px;
    font-family: var(--font-body);
    text-anchor: middle;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    pointer-events: none;
    transition: fill var(--transition);
}

.hotspot.is-active {
    color: var(--color-primary);
}

.hotspot.is-active .hotspot-ring {
    opacity: 1;
    stroke: var(--color-primary);
    animation: ringPulse 2.4s ease-in-out infinite;
}

.hotspot.is-active .hotspot-fill {
    fill: rgba(255, 151, 82, 0.12);
    stroke: var(--color-primary);
}

.hotspot.is-active .hotspot-label {
    fill: var(--color-primary);
}

@keyframes ringPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.45;
    }
}

/* Telling time labels */

.period-shade {
    opacity: 0;
    transition: opacity 350ms ease;
    pointer-events: none;
}

.period-shade.is-active {
    opacity: 1;
}

.day-night-label {
    fill: var(--color-text-muted);
    font-size: 12px;
    font-family: var(--font-body);
    letter-spacing: 0.24em;
    pointer-events: none;
}

.period-label {
    cursor: pointer;
}

.period-label rect {
    fill: var(--color-bg-elevated);
    stroke: var(--color-border);
    stroke-width: 1;
    transition: fill var(--transition), stroke var(--transition);
}

.period-label text {
    fill: var(--color-text-secondary);
    font-size: 13px;
    font-weight: 700;
    font-family: var(--font-body);
    text-anchor: middle;
    letter-spacing: 0.12em;
    pointer-events: none;
    transition: fill var(--transition);
}

.period-label:hover rect {
    stroke: var(--color-primary);
}

.period-label.is-active rect {
    fill: var(--color-primary);
    stroke: var(--color-primary);
}

.period-label.is-active text {
    fill: #121212;
}

/* Text panel */

.cycle-panel {
    position: relative;
}

.cycle-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
    min-height: 260px;
}

.cycle-step {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 320ms ease, transform 320ms ease;
    pointer-events: none;
}

.cycle-step.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    position: relative;
}

.cycle-step-kicker {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-primary);
    margin: 0 0 0.85rem;
}

.cycle-step h3 {
    font-size: clamp(1.5rem, 2.4vw, 1.9rem);
    font-weight: 400;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.cycle-step-tag {
    display: inline-block;
    padding: 0.18rem 0.55rem;
    background: var(--color-primary-glow);
    color: var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.cycle-step p {
    color: var(--color-text-secondary);
    font-size: 1.02rem;
    line-height: 1.65;
    margin: 0;
}

.cycle-step strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Controls */

.cycle-controls {
    /* Edge lines echo the app tab bar's anchoring stripes: 5 × 1px lines, 3px gaps. */
    --edge-stack-height: calc(var(--edge-line-thickness) * 5 + var(--edge-line-gap) * 4);
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2.25rem;
    padding-top: calc(1.5rem + var(--edge-stack-height));
    background-image: repeating-linear-gradient(to bottom,
            rgba(255, 255, 255, 0.08) 0,
            rgba(255, 255, 255, 0.08) var(--edge-line-thickness),
            transparent var(--edge-line-thickness),
            transparent calc(var(--edge-line-thickness) + var(--edge-line-gap)));
    background-size: 100% var(--edge-stack-height);
    background-repeat: no-repeat;
    background-position: top;
}

.cycle-nav {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(30, 30, 30, 0.65) 0%, rgba(18, 18, 18, 0.25) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.02);
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition), color var(--transition), background-color var(--transition);
}

.cycle-nav:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.cycle-nav:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.cycle-dots {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    justify-content: center;
}

.cycle-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border-radius: 999px;
    background: var(--color-border);
    border: 0;
    transition: background-color var(--transition), transform var(--transition), width var(--transition);
}

.cycle-dot:hover {
    background: var(--color-text-secondary);
}

.cycle-dot.is-active {
    background: var(--color-primary);
    width: 22px;
}

.cycle-dots-divider {
    width: 1px;
    height: 14px;
    background: var(--color-border);
    margin: 0 0.25rem;
}

@media (max-width: 880px) {
    .cycle-stage {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .cycle-graph {
        padding: 0;
    }

    .cycle-steps {
        min-height: 220px;
    }

    .cycle-step h3 {
        font-size: 1.4rem;
    }
}

/* ───── Features ───── */

.features {
    padding: var(--section-pad-y) clamp(1.25rem, 4vw, 3rem);
    position: relative;
}

.features::after {
    content: "";
    position: absolute;
    top: -250px;
    right: 0;
    bottom: -250px;
    left: 0;
    background-image: url('images/bg/4k_image3.webp');
    background-size: cover;
    background-color: var(--bg-image-underlay);
    background-position: center;
    background-blend-mode: multiply;
    opacity: var(--bg-image-opacity);
    mix-blend-mode: screen;
    pointer-events: none;
    z-index: 0;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 75%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 75%, transparent 100%);
}

@media (max-width: 2560px) {
    .features::after {
        background-image: url('images/bg/2k_image3.webp');
    }
}

@media (max-width: 880px) {
    .features::after {
        background-image: url('images/bg/mobile_image3.webp');
    }
}

.feature-grid {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.feature-card {
    background: linear-gradient(135deg, rgba(30, 30, 30, 0.65) 0%, rgba(18, 18, 18, 0.25) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.02);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    display: grid;
    grid-template-columns: 48px 1fr;
    column-gap: 1.5rem;
}

@media (min-width: 601px) {
    .feature-card:nth-child(even) {
        transform: translateX(2rem);
    }

    .feature-card:nth-child(odd) {
        transform: translateX(-2rem);
    }
}

.feature-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    grid-column: 1;
    grid-row: 1 / 3;
    align-self: center;
}

.feature-card h3 {
    margin-bottom: 0.25rem;
    grid-column: 2;
    grid-row: 1;
    align-self: end;
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.97rem;
    margin: 0;
    grid-column: 2;
    grid-row: 2;
    align-self: start;
}

@media (max-width: 600px) {
    .feature-card {
        padding: 1.25rem;
        column-gap: 1rem;
    }
}

/* ───── Why ───── */

.why {
    padding: var(--section-pad-y) clamp(1.25rem, 4vw, 3rem);
    background: #121212;
    position: relative;
    overflow: hidden;
}

.why::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 45% at 80% 30%, var(--color-primary-glow), transparent 70%);
    pointer-events: none;
}

.why-inner {
    position: relative;
    max-width: var(--container);
    margin: 0 auto;
}

.why-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
    margin-bottom: 3.5rem;
}

.why-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.75rem;
}

.why-card h3 {
    color: var(--color-primary);
    margin-bottom: 0.6rem;
    font-weight: 500;
}

.why-card p {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 0.98rem;
}

.circle-quote {
    margin: 4.5rem auto 0;
    padding: 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.circle-quote p {
    font-size: clamp(1.25rem, 2.5vw, 1.7rem);
    font-weight: 400;
    font-style: italic;
    color: #121212;
    max-width: 30ch;
    margin: 0 auto 1rem;
    line-height: 1.4;
}

.circle-quote cite {
    font-style: normal;
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(18, 18, 18, 0.7);
    letter-spacing: 0.06em;
}

/* ───── Get the App ───── */

.get-app {
    padding: calc(var(--section-pad-y) * 1.5) clamp(1.25rem, 4vw, 3rem) calc(var(--section-pad-y) * 3);
    background: var(--color-bg);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    position: relative;
}

.get-app-inner {
    position: relative;
    z-index: 1;
    max-width: 620px;
    margin: 0 auto;
    text-align: center;
}

.store-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
    position: relative;
}

.store-buttons::before {
    content: "";
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(800px, 150vw, 1600px);
    aspect-ratio: 1 / 1;
    background: var(--color-primary);
    border-radius: 50%;
    z-index: -1;
}

.store-badge {
    display: block;
    transition: transform var(--transition), opacity var(--transition);
}

.store-badge svg {
    height: 52px;
    width: auto;
}

.store-badge:hover {
    transform: translateY(-2px);
    opacity: 0.85;
}

/* ───── Android beta modal ───── */

.beta-modal[hidden] {
    display: none;
}

.beta-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.beta-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: beta-fade 200ms ease;
}

.beta-modal-card {
    position: relative;
    width: min(440px, 100%);
    max-height: calc(100vh - 2.5rem);
    overflow-y: auto;
    text-align: left;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 4vw, 2.25rem);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
    animation: beta-rise 220ms ease;
}

.beta-modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.9rem;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition);
}

.beta-modal-close:hover {
    opacity: 1;
}

.beta-modal-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.4rem;
}

.beta-modal-intro {
    margin: 0 0 1.5rem;
    color: var(--color-text);
    opacity: 0.85;
}

.beta-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.beta-steps li {
    display: flex;
    gap: 0.9rem;
    align-items: flex-start;
}

.beta-step-num {
    flex: 0 0 auto;
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-bg);
    background: var(--color-primary);
}

.beta-step-body {
    flex: 1 1 auto;
}

.beta-step-body strong {
    display: block;
    margin-bottom: 0.2rem;
}

.beta-step-body p {
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
    opacity: 0.8;
}

.beta-step-btn {
    display: inline-block;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: var(--color-bg);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform var(--transition), opacity var(--transition);
}

.beta-step-btn:hover {
    transform: translateY(-1px);
    opacity: 0.9;
}

.beta-modal-note {
    margin: 1.5rem 0 0;
    font-size: 0.85rem;
    opacity: 0.6;
}

@keyframes beta-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes beta-rise {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ───── Feature card hero emphasis ───── */

.feature-card-hero {
    border-color: rgba(255, 151, 82, 0.15);
}

.feature-card-hero h3 {
    color: var(--color-primary);
}

/* ───── Footer ───── */

.site-footer {
    padding: 2.5rem clamp(1.25rem, 4vw, 3rem);
    background: transparent;
    color: #121212;
    position: relative;
    z-index: 1;
}

.footer-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
}

.footer-brand {
    grid-column: 2;
    text-align: center;
}

.footer-legal {
    grid-column: 3;
    justify-self: end;
}

.footer-brand .brand-name {
    display: block;
    color: #121212;
    margin-bottom: 0.25rem;
}

.footer-brand p {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(18, 18, 18, 0.75);
}

.footer-legal a {
    font-size: 0.9rem;
    color: rgba(18, 18, 18, 0.8);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.footer-legal a:hover {
    color: #121212;
}

/* ───── Motion ───── */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}