:root {
    color-scheme: light;
    --bg: #f2efe8;
    --panel: #fffdf8;
    --panel-strong: #ffffff;
    --text: #20242a;
    --muted: #6f7580;
    --line: #e2dbce;
    --accent: #2f8f83;
    --accent-dark: #1f6f66;
    --warm: #f4b45f;
    --rose: #e9697a;
    --blue: #5987d7;
    --lotto-yellow: #fbc400;
    --lotto-blue: #5f8ee4;
    --lotto-red: #f05b5b;
    --lotto-gray: #8f98a3;
    --lotto-green: #57b96f;
    --shadow: 0 24px 60px rgba(73, 62, 44, 0.18);
}

body.dark {
    color-scheme: dark;
    --bg: #14181b;
    --panel: #1e2428;
    --panel-strong: #283037;
    --text: #f5f7f8;
    --muted: #a9b1bb;
    --line: #39424a;
    --accent: #63c9b9;
    --accent-dark: #8ce3d6;
    --warm: #f4c978;
    --rose: #ff8a98;
    --blue: #7ea7ff;
    --lotto-yellow: #ffd43b;
    --lotto-blue: #78a7ff;
    --lotto-red: #ff7676;
    --lotto-gray: #aeb7c4;
    --lotto-green: #69d384;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 14% 18%, color-mix(in srgb, var(--warm) 28%, transparent), transparent 30%),
        radial-gradient(circle at 86% 8%, color-mix(in srgb, var(--blue) 18%, transparent), transparent 28%),
        var(--bg);
    color: var(--text);
}

button,
input {
    font: inherit;
}

.app-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px 18px;
}

.sandbox-panel {
    width: min(1060px, 100%);
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: color-mix(in srgb, var(--panel) 93%, transparent);
    box-shadow: var(--shadow);
}

.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 0;
    font-size: clamp(40px, 7vw, 76px);
    line-height: 0.95;
}

.theme-toggle {
    min-width: 72px;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel-strong);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
}

.feature-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 22px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: color-mix(in srgb, var(--panel-strong) 72%, transparent);
}

.nav-button {
    min-height: 48px;
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--muted);
    font-weight: 900;
    cursor: pointer;
}

.nav-button.active {
    background: var(--accent);
    color: white;
    box-shadow: 0 12px 22px color-mix(in srgb, var(--accent) 24%, transparent);
}

.feature-view {
    display: none;
}

.feature-view.active {
    display: block;
}

.feature-heading {
    margin-bottom: 18px;
}

.feature-heading h2 {
    margin-bottom: 0;
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1;
}

.controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
}

.switch-control {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 6px 8px 6px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel-strong);
    color: var(--text);
    cursor: pointer;
    user-select: none;
}

.switch-text {
    font-size: 14px;
    font-weight: 800;
}

.switch-control input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.switch-track {
    display: inline-flex;
    align-items: center;
    width: 48px;
    height: 28px;
    padding: 3px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--line) 76%, var(--panel-strong));
    transition: background-color 180ms ease;
}

.switch-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--panel-strong);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
    transition: transform 180ms ease;
}

.switch-control input:checked + .switch-track {
    background: var(--accent);
}

.switch-control input:checked + .switch-track .switch-thumb {
    transform: translateX(20px);
}

.tickets {
    display: grid;
    gap: 14px;
    margin-bottom: 18px;
}

.ticket {
    position: relative;
    overflow: hidden;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--panel-strong) 86%, var(--warm)), var(--panel-strong)),
        var(--panel-strong);
}

.ticket.compact {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
}

.ticket.compact::before,
.ticket.compact::after {
    display: none;
}

.ticket::before,
.ticket::after {
    position: absolute;
    top: 50%;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--panel);
    content: "";
    transform: translateY(-50%);
}

.ticket::before {
    left: -17px;
}

.ticket::after {
    right: -17px;
}

.ticket-header,
.bonus-row {
    display: flex;
    align-items: center;
}

.ticket-header {
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 24px;
}

.ticket-mark {
    padding: 7px 10px;
    border-radius: 8px;
    background: var(--text);
    color: var(--panel);
    font-weight: 900;
}

.game-label {
    color: var(--muted);
    font-size: 14px;
    font-weight: 800;
}

.ticket.compact .game-label {
    min-width: 40px;
    font-size: 13px;
}

.number-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 0;
}

.balls {
    display: grid;
    grid-template-columns: repeat(6, minmax(54px, 1fr));
    gap: 12px;
}

.ticket.compact .balls {
    grid-template-columns: repeat(6, 34px);
    justify-content: center;
    gap: 5px;
}

.ball,
.bonus-ball {
    display: grid;
    aspect-ratio: 1;
    place-items: center;
    border-radius: 50%;
    color: #111318;
    font-size: clamp(22px, 5vw, 34px);
    font-weight: 900;
    box-shadow: inset 0 -8px 16px rgba(0, 0, 0, 0.16), 0 10px 20px rgba(0, 0, 0, 0.12);
}

.ticket.compact .ball,
.ticket.compact .bonus-ball {
    width: 34px;
    height: 34px;
    font-size: 15px;
    box-shadow: inset 0 -5px 10px rgba(0, 0, 0, 0.14), 0 6px 12px rgba(0, 0, 0, 0.1);
}

.ball-yellow,
.bonus-ball.ball-yellow {
    background: var(--lotto-yellow);
    color: #1f1a05;
}

.ball-blue,
.bonus-ball.ball-blue {
    background: var(--lotto-blue);
    color: white;
}

.ball-red,
.bonus-ball.ball-red {
    background: var(--lotto-red);
    color: white;
}

.ball-gray,
.bonus-ball.ball-gray {
    background: var(--lotto-gray);
    color: white;
}

.ball-green,
.bonus-ball.ball-green {
    background: var(--lotto-green);
    color: #092513;
}

.ball.placeholder,
.bonus-ball.placeholder {
    background: color-mix(in srgb, var(--line) 72%, var(--panel-strong));
    color: var(--muted);
}

.bonus-row {
    justify-content: center;
    gap: 12px;
    margin-top: 22px;
}

.plus {
    color: var(--muted);
    font-size: 28px;
    font-weight: 800;
}

.ticket.compact .plus {
    font-size: 18px;
    line-height: 1;
}

.bonus-ball {
    width: 70px;
    height: 70px;
}

.test-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: 18px;
}

.camera-card,
.result-card {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--panel-strong);
}

.camera-card {
    display: grid;
    gap: 16px;
    padding: 18px;
}

.camera-frame {
    position: relative;
    display: grid;
    min-height: 420px;
    place-items: center;
    overflow: hidden;
    border-radius: 16px;
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--accent) 16%, transparent), transparent),
        color-mix(in srgb, var(--panel) 74%, var(--line));
}

#webcam-container {
    display: grid;
    place-items: center;
}

.camera-placeholder {
    display: grid;
    width: min(280px, 80%);
    aspect-ratio: 1;
    place-items: center;
    border: 2px dashed color-mix(in srgb, var(--accent) 44%, var(--line));
    border-radius: 50%;
    color: var(--muted);
}

.placeholder-mark {
    font-size: clamp(36px, 9vw, 72px);
    font-weight: 1000;
    color: color-mix(in srgb, var(--text) 18%, transparent);
}

.webcam-canvas,
.preview-image {
    width: min(100%, 420px);
    height: auto;
    max-height: 420px;
    object-fit: contain;
    border-radius: 16px;
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
}

.action-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 10px;
}

.primary-button,
.secondary-button {
    min-height: 54px;
    border-radius: 14px;
    font-weight: 900;
    cursor: pointer;
}

.primary-button {
    width: 100%;
    border: 0;
    background: var(--accent);
    color: white;
    box-shadow: 0 14px 24px color-mix(in srgb, var(--accent) 26%, transparent);
}

.primary-button:hover {
    background: var(--accent-dark);
}

.secondary-button {
    min-width: 92px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text);
}

.primary-button:disabled,
.secondary-button:disabled {
    cursor: wait;
    opacity: 0.55;
}

.status-text {
    min-height: 22px;
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.upload-control {
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px dashed var(--line);
    border-radius: 14px;
    background: color-mix(in srgb, var(--panel) 72%, transparent);
    cursor: pointer;
}

.upload-control span {
    color: var(--text);
    font-weight: 900;
}

.upload-control input {
    width: 100%;
    color: var(--muted);
}

.mode-note {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.45;
}

.result-card {
    display: grid;
    align-content: start;
    gap: 18px;
    padding: 18px;
}

.result-hero {
    display: grid;
    gap: 12px;
    min-height: 220px;
    place-items: center;
    padding: 28px 18px;
    border-radius: 16px;
    background:
        radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--warm) 34%, transparent), transparent 34%),
        linear-gradient(145deg, color-mix(in srgb, var(--accent) 14%, var(--panel-strong)), var(--panel-strong));
    text-align: center;
}

.result-label {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    font-weight: 900;
    text-transform: uppercase;
}

.result-hero h2 {
    margin: 0;
    font-size: clamp(34px, 6vw, 56px);
    line-height: 1;
}

.result-caption {
    max-width: 280px;
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    font-weight: 800;
    line-height: 1.45;
}

.score-ring {
    display: grid;
    width: 92px;
    height: 92px;
    place-items: center;
    border-radius: 50%;
    background: var(--text);
    color: var(--panel);
    font-size: 24px;
    font-weight: 1000;
}

.prediction-list {
    display: grid;
    gap: 10px;
}

.empty-state {
    padding: 18px;
    border: 1px dashed var(--line);
    border-radius: 14px;
    color: var(--muted);
    font-weight: 700;
    text-align: center;
}

.prediction-item {
    display: grid;
    gap: 8px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: color-mix(in srgb, var(--panel) 72%, transparent);
}

.prediction-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-weight: 900;
}

.prediction-meta strong {
    color: var(--accent);
}

.meter {
    height: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: color-mix(in srgb, var(--line) 74%, transparent);
}

.meter span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--warm), var(--rose));
    transition: width 160ms ease;
}

@media (max-width: 820px) {
    .sandbox-panel {
        padding: 20px;
        border-radius: 18px;
    }

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

    .theme-toggle {
        width: 100%;
    }

    .feature-nav,
    .test-layout {
        grid-template-columns: 1fr;
    }

    .controls {
        justify-content: stretch;
    }

    .switch-control {
        width: 100%;
        justify-content: space-between;
    }

    .balls {
        grid-template-columns: repeat(3, 1fr);
    }

    .ticket.compact {
        grid-template-columns: 32px minmax(0, 1fr);
        gap: 6px;
        padding: 7px 9px;
    }

    .ticket.compact .game-label {
        min-width: 34px;
        font-size: 12px;
    }

    .ticket.compact .balls {
        grid-template-columns: repeat(6, 28px);
        gap: 4px;
    }

    .ticket.compact .ball,
    .ticket.compact .bonus-ball {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }

    .ticket.compact .plus {
        font-size: 15px;
    }

    .camera-frame {
        min-height: 320px;
    }

    .action-row {
        grid-template-columns: 1fr;
    }

    .secondary-button {
        width: 100%;
    }
}