:root {
    color-scheme: light dark;
    --bg: #0f0820;
    --surface: #1b1033;
    --surface-strong: #271548;
    --text: #fffafd;
    --muted: #c8bdd7;
    --border: rgb(255 255 255 / 14%);
    --pink: #ff007f;
    --purple: #7b2d8e;
    --violet: #9d45dc;
    --green: #3ec464;
    --blue: #23aad7;
    --yellow: #ffd93b;
    --card-pink: #f264a1;
    --radius-sm: 0.75rem;
    --radius: 1.25rem;
    --radius-lg: 2rem;
    --shadow: 0 1.5rem 5rem rgb(4 0 14 / 38%);
    --content: 72rem;
    font-family: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, sans-serif;
    font-synthesis: none;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 5% 0%, rgb(123 45 142 / 45%), transparent 30rem),
        radial-gradient(circle at 95% 20%, rgb(255 0 127 / 24%), transparent 28rem),
        var(--bg);
    line-height: 1.6;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image: linear-gradient(rgb(255 255 255 / 2%) 1px, transparent 1px), linear-gradient(90deg, rgb(255 255 255 / 2%) 1px, transparent 1px);
    background-size: 3rem 3rem;
    content: "";
    mask-image: linear-gradient(to bottom, black, transparent 75%);
}

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

a {
    color: inherit;
    text-underline-offset: 0.2em;
}

button,
textarea {
    font: inherit;
}

button,
.button {
    min-height: 2.75rem;
}

:focus-visible {
    outline: 0.2rem solid var(--yellow);
    outline-offset: 0.25rem;
}

.skip-link {
    position: fixed;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 20;
    padding: 0.7rem 1rem;
    color: #161018;
    background: var(--yellow);
    border-radius: var(--radius-sm);
    transform: translateY(-150%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header,
.site-footer,
main {
    padding-inline: max(1rem, env(safe-area-inset-left)) max(1rem, env(safe-area-inset-right));
}

.site-header {
    position: relative;
    z-index: 5;
}

.nav {
    display: flex;
    width: min(100%, var(--content));
    min-height: 5rem;
    margin-inline: auto;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    text-decoration: none;
}

.brand img {
    width: 2.5rem;
    border-radius: 0.65rem;
    box-shadow: 0 0 1.5rem rgb(255 0 127 / 30%);
}

.nav__links {
    display: flex;
    align-items: center;
    gap: clamp(0.75rem, 2vw, 1.5rem);
}

.nav__links a {
    color: var(--muted);
    font-weight: 650;
    text-decoration: none;
}

.nav__links a:hover,
.nav__links a[aria-current="page"] {
    color: var(--text);
}

.language-link {
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 999px;
}

.container {
    width: min(100%, var(--content));
    margin-inline: auto;
}

.hero {
    display: grid;
    min-height: calc(100vh - 5rem);
    min-height: calc(100svh - 5rem);
    padding-block: clamp(3rem, 8vw, 8rem);
    align-items: center;
    grid-template-columns: minmax(0, 1.1fr) minmax(17rem, 0.9fr);
    gap: clamp(2.5rem, 7vw, 7rem);
}

.eyebrow {
    margin: 0 0 0.75rem;
    color: #ff8ac4;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    line-height: 1.08;
}

h1 {
    max-width: 12ch;
    margin: 0;
    font-size: clamp(3.2rem, 9vw, 7.5rem);
    line-height: 1.14;
    letter-spacing: -0.065em;
}

h2 {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 5vw, 3.75rem);
    letter-spacing: -0.045em;
}

h3 {
    margin: 0 0 0.65rem;
    font-size: 1.25rem;
}

.gradient-text {
    color: transparent;
    background: linear-gradient(105deg, #fff 5%, #ff76ba 45%, #a96cf0);
    background-clip: text;
}

.hero__lead,
.section-lead {
    max-width: 42rem;
    color: var(--muted);
    font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.button-row {
    display: flex;
    margin-top: 2rem;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.button {
    display: inline-flex;
    padding: 0.8rem 1.15rem;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #fff;
    background: linear-gradient(135deg, var(--pink), #b018d1);
    border: 1px solid transparent;
    border-radius: 999px;
    box-shadow: 0 0.8rem 2rem rgb(255 0 127 / 22%);
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.button:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.button--secondary {
    color: var(--text);
    background: rgb(255 255 255 / 7%);
    border-color: var(--border);
    box-shadow: none;
}

.button[aria-disabled="true"] {
    color: var(--muted);
    background: rgb(255 255 255 / 7%);
    border-color: var(--border);
    box-shadow: none;
    cursor: default;
}

.hero-art {
    position: relative;
    display: grid;
    aspect-ratio: 1;
    place-items: center;
}

.hero-art::before {
    position: absolute;
    width: 92%;
    aspect-ratio: 1;
    background: radial-gradient(circle, rgb(255 0 127 / 32%), transparent 67%);
    content: "";
}

.hero-art__icon {
    position: relative;
    width: min(78%, 30rem);
    border: 1px solid rgb(255 255 255 / 18%);
    border-radius: 23%;
    box-shadow: 0 2rem 6rem rgb(0 0 0 / 55%), 0 0 5rem rgb(157 69 220 / 35%);
    transform: rotate(3deg);
}

.section {
    padding-block: clamp(4rem, 10vw, 8rem);
}

.section--surface {
    background: rgb(255 255 255 / 3%);
    border-block: 1px solid var(--border);
}

.section-heading {
    max-width: 48rem;
    margin-bottom: 2.5rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.feature-card,
.step,
.privacy-card,
.faq details {
    padding: clamp(1.25rem, 3vw, 2rem);
    background: linear-gradient(145deg, rgb(255 255 255 / 8%), rgb(255 255 255 / 3%));
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.feature-card p,
.step p,
.privacy-card p {
    margin-bottom: 0;
    color: var(--muted);
}

.color-dots {
    display: flex;
    margin-bottom: 1.2rem;
    gap: 0.35rem;
}

.color-dots span {
    width: 0.8rem;
    aspect-ratio: 1;
    border-radius: 50%;
}

.dot-green { background: var(--green); }
.dot-blue { background: var(--blue); }
.dot-yellow { background: var(--yellow); }
.dot-pink { background: var(--pink); }
.dot-purple { background: var(--purple); }

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    counter-reset: steps;
}

.step {
    counter-increment: steps;
}

.step::before {
    display: grid;
    width: 2.5rem;
    margin-bottom: 1.5rem;
    aspect-ratio: 1;
    color: #170d20;
    background: var(--yellow);
    border-radius: 50%;
    font-weight: 900;
    content: counter(steps);
    place-items: center;
}

.board-promo {
    display: grid;
    padding: clamp(1.5rem, 5vw, 4rem);
    align-items: center;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 6vw, 6rem);
    background: linear-gradient(145deg, #271548, #170d2e);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.mini-board,
.board-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
}

.mini-board {
    gap: 0.35rem;
    transform: rotate(-2deg);
}

.mini-board span {
    aspect-ratio: 1;
    border-radius: 0.45rem;
}

.mini-board span:nth-child(5n + 1) { background: var(--blue); }
.mini-board span:nth-child(5n + 2) { background: var(--yellow); }
.mini-board span:nth-child(5n + 3) { background: var(--card-pink); }
.mini-board span:nth-child(5n + 4) { background: var(--purple); }
.mini-board span:nth-child(5n) { background: var(--green); }

.faq {
    display: grid;
    gap: 0.75rem;
}

.faq summary {
    font-weight: 800;
    cursor: pointer;
}

.faq details p {
    margin-bottom: 0;
    color: var(--muted);
}

.legal-note {
    padding: 1rem 1.25rem;
    color: var(--muted);
    background: rgb(255 255 255 / 4%);
    border-left: 0.25rem solid var(--pink);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.site-footer {
    padding-block: 2rem max(2rem, env(safe-area-inset-bottom));
    color: var(--muted);
    border-top: 1px solid var(--border);
}

.footer__inner {
    display: flex;
    width: min(100%, var(--content));
    margin-inline: auto;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer__links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.update-banner {
    position: fixed;
    right: 1rem;
    bottom: max(1rem, env(safe-area-inset-bottom));
    z-index: 10;
    display: flex;
    max-width: 26rem;
    padding: 0.8rem;
    align-items: center;
    gap: 0.8rem;
    background: #fff;
    color: #201228;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.update-banner[hidden] {
    display: none;
}

.update-banner .button {
    flex: 0 0 auto;
}

.page-hero {
    padding-block: clamp(4rem, 9vw, 7rem) 3rem;
}

.page-hero h1 {
    max-width: 16ch;
    font-size: clamp(2.8rem, 7vw, 5.5rem);
}

.prose {
    width: min(100%, 48rem);
    padding-bottom: 6rem;
}

.prose h2 {
    margin-top: 3rem;
    font-size: 1.75rem;
    letter-spacing: -0.02em;
}

.prose h3 {
    margin-top: 2rem;
}

.prose p,
.prose li {
    color: var(--muted);
}

.board-layout {
    display: grid;
    padding-block: 2rem 5rem;
    align-items: start;
    grid-template-columns: minmax(0, 1fr) minmax(16rem, 24rem);
    gap: clamp(1.5rem, 4vw, 3rem);
}

.board-card {
    padding: clamp(0.75rem, 2.5vw, 1.5rem);
    background: rgb(255 255 255 / 7%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.board-grid {
    gap: clamp(0.3rem, 1vw, 0.65rem);
}

.board-cell {
    position: relative;
    min-width: 0;
    min-height: 2.75rem;
    aspect-ratio: 1;
    padding: 0;
    border: 0.13rem solid rgb(0 0 0 / 32%);
    border-radius: clamp(0.45rem, 1.5vw, 0.85rem);
    box-shadow: inset 0 1px rgb(255 255 255 / 28%);
    cursor: pointer;
    touch-action: manipulation;
}

.board-cell:hover {
    filter: brightness(1.08);
}

.board-cell--yellow { background: var(--yellow); }
.board-cell--blue { background: var(--blue); }
.board-cell--purple { background: var(--purple); }
.board-cell--green { background: var(--green); }
.board-cell--pink { background: var(--card-pink); }

.board-cell__marker {
    position: absolute;
    inset: 8%;
    display: grid;
    color: #151019;
    border: 0.22rem solid currentColor;
    border-radius: 50%;
    font-size: clamp(1.8rem, 8vw, 4.5rem);
    font-weight: 500;
    line-height: 1;
    opacity: 0;
    place-items: center;
    transform: scale(0.65) rotate(-8deg);
}

.board-cell--purple .board-cell__marker {
    color: #fff;
}

.board-cell.is-marked .board-cell__marker {
    opacity: 1;
    transform: scale(1) rotate(-8deg);
}

.board-tools {
    position: sticky;
    top: 1rem;
    display: grid;
    gap: 1rem;
}

.field-label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 800;
}

.notes {
    width: 100%;
    min-height: 7rem;
    padding: 0.9rem;
    color: #201228;
    background: #fff;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    resize: vertical;
}

.board-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
}

.board-meta {
    display: flex;
    color: var(--muted);
    justify-content: space-between;
}

.celebration {
    padding: 1rem;
    text-align: center;
    background: linear-gradient(135deg, rgb(255 217 59 / 18%), rgb(255 0 127 / 15%));
    border: 1px solid var(--yellow);
    border-radius: var(--radius);
    animation: celebrate 500ms ease-out;
}

.celebration[hidden] {
    display: none;
}

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

@keyframes celebrate {
    from { opacity: 0; transform: scale(0.95); }
}

@media (max-width: 48rem) {
    .hero,
    .board-promo,
    .board-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 3rem;
        text-align: center;
    }

    .hero__lead,
    .button-row {
        margin-inline: auto;
        justify-content: center;
    }

    .hero-art {
        max-width: 28rem;
        margin-inline: auto;
        grid-row: 1;
    }

    .card-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    .board-tools {
        position: static;
    }
}

@media (max-width: 38rem) {
    .nav {
        min-height: 4.5rem;
    }

    .nav__links a:not(.language-link):not(.nav__play) {
        display: none;
    }

    .brand span {
        display: none;
    }

    .board-actions {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #fff8fc;
        --surface: #fff;
        --surface-strong: #f3e8fa;
        --text: #24102e;
        --muted: #64566c;
        --border: rgb(50 20 60 / 14%);
        --shadow: 0 1.5rem 4rem rgb(80 30 90 / 14%);
    }

    body {
        background:
            radial-gradient(circle at 5% 0%, rgb(157 69 220 / 18%), transparent 30rem),
            radial-gradient(circle at 95% 20%, rgb(255 0 127 / 12%), transparent 28rem),
            var(--bg);
    }

    .gradient-text {
        background: linear-gradient(105deg, #381044, #d20069 55%, #702192);
        background-clip: text;
    }

    .board-promo {
        color: #fff;
    }

    .board-promo p {
        color: #d9cce2;
    }
}