:root {
    --bg: #09090f;
    --card: rgba(14, 15, 22, 0.92);
    --card-border: rgba(255, 255, 255, 0.06);
    --text: #f7f8fc;
    --muted: #97a1b8;
    --primary: #87f5c4;
    --primary-strong: #49d99b;
    --danger: #ff7d7d;
    --shadow: 0 30px 80px rgba(0, 0, 0, 0.42);
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html,
body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    background:
        radial-gradient(circle at top, rgba(135, 245, 196, 0.12), transparent 32%),
        radial-gradient(circle at bottom right, rgba(72, 105, 200, 0.12), transparent 26%),
        linear-gradient(180deg, #05060a, #0a0c12 56%, #090b11);
    color: var(--text);
    min-height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
    overscroll-behavior: none;
}

.public-body {
    display: block;
    height: 100vh;
    height: 100dvh;
    padding:
        max(8px, env(safe-area-inset-top))
        8px
        max(10px, env(safe-area-inset-bottom))
        8px;
    overflow: hidden;
}

.app-shell {
    width: min(100%, 720px);
    margin: 0 auto;
    height: calc(100vh - 18px);
    height: calc(100dvh - 18px);
    overflow: hidden;
}

.scanner-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 30px;
    padding: 14px 14px 12px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
    overflow: hidden;
}

.scanner-card__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
    text-align: center;
    width: 100%;
}

.scanner-card__header h1 {
    margin: 0;
    font-size: clamp(1.55rem, 7.5vw, 2.2rem);
    line-height: 1;
    letter-spacing: -0.04em;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: 0.68rem;
    color: var(--primary);
    white-space: nowrap;
    padding-top: 4px;
}

.scanner-stage {
    position: relative;
    border-radius: 26px;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
    border: 1px solid rgba(255,255,255,0.05);
    min-height: 0;
    height: min(47svh, 380px);
    height: min(47dvh, 380px);
    flex: 1 1 auto;
    width: 100%;
}

.scanner-reader {
    min-height: 0;
    height: 100%;
}

#scanner-reader video {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    border-radius: 26px;
}

#scanner-reader,
#scanner-reader > div,
#scanner-reader section {
    width: 100% !important;
}

#scanner-reader__scan_region {
    min-height: 0 !important;
    height: 100% !important;
}

#scanner-reader img {
    max-width: 100%;
}

.scanner-overlay {
    pointer-events: none;
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
}

.scanner-frame {
    width: min(60vw, 235px);
    aspect-ratio: 1;
    border-radius: 26px;
    border: 3px solid rgba(135, 245, 196, 0.9);
    box-shadow: 0 0 0 999px rgba(0, 0, 0, 0.22);
    position: relative;
    animation: pulse 2.2s ease-in-out infinite;
}

.scanner-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    border-top: 4px solid rgba(255, 255, 255, 0.9);
    animation: scanline 2s linear infinite;
}

.status-pill,
.invalid-panel,
.meme-panel {
    margin-top: 12px;
    border-radius: 18px;
    padding: 12px 14px;
    border: 1px solid rgba(255,255,255,0.06);
}

.status-pill {
    background: rgba(255,255,255,0.035);
    color: var(--muted);
    font-size: 0.84rem;
    text-align: center;
    width: 100%;
}

.invalid-panel {
    background: rgba(255, 125, 125, 0.08);
    color: #ffd8d8;
    line-height: 1.4;
    text-align: center;
    width: 100%;
}

.meme-panel {
    display: flex;
    flex-direction: column;
    gap: 14px;
    background: linear-gradient(135deg, rgba(135,245,196,0.12), rgba(73,217,155,0.05));
    text-align: center;
    align-items: center;
    justify-content: center;
    flex: 1 1 auto;
    width: 100%;
}

.player-buttons {
    width: 100%;
    display: grid;
    gap: 14px;
}

.primary-button {
    appearance: none;
    border: 0;
    border-radius: 999px;
    min-height: 58px;
    width: 100%;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 700;
    color: #062415;
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    box-shadow: 0 14px 30px rgba(53, 208, 143, 0.28);
}

.primary-button:hover,
.primary-button:focus-visible {
    transform: translateY(-1px) scale(1.01);
}

.player-button,
.next-button-large {
    min-height: 68px;
    font-size: 1.2rem;
    letter-spacing: 0.01em;
}

#scanner-reader__dashboard_section_csr button,
#scanner-reader__dashboard_section_swaplink {
    border-radius: 999px !important;
}

#scanner-reader__dashboard_section_csr button {
    min-height: 44px !important;
    font-size: 0.9rem !important;
    padding: 0 18px !important;
}

#scanner-reader__dashboard_section_swaplink {
    display: inline-flex !important;
    align-items: center !important;
    min-height: 44px !important;
}

@keyframes scanline {
    0% { transform: translateY(0); opacity: 0.15; }
    50% { transform: translateY(220px); opacity: 0.9; }
    100% { transform: translateY(0); opacity: 0.15; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@media (min-width: 700px) {
    .public-body {
        display: grid;
        place-items: center;
        padding: 20px;
        overflow: auto;
    }

    .app-shell,
    .scanner-card {
        min-height: auto;
        height: auto;
    }

    .scanner-card {
        padding: 34px;
    }

    .scanner-stage,
    .scanner-reader,
    #scanner-reader__scan_region {
        min-height: 460px !important;
        height: 460px !important;
    }

    .meme-panel {
        align-items: center;
        justify-content: center;
        flex-direction: column;
    }

    .primary-button {
        width: auto;
        min-width: 180px;
    }

    .next-button-large {
        width: min(100%, 360px);
    }

    .player-buttons {
        width: min(100%, 360px);
    }
}

@media (max-width: 420px) {
    .scanner-card {
        padding: 16px;
        border-radius: 24px;
    }

    .scanner-stage,
    .scanner-reader,
    #scanner-reader__scan_region {
        height: min(43svh, 320px) !important;
        height: min(43dvh, 320px) !important;
        min-height: 0 !important;
    }

    .scanner-frame {
        width: min(56vw, 210px);
        border-width: 3px;
    }

    .scanner-card__header h1 {
        letter-spacing: -0.03em;
    }
}