:root {
    --bg: #f1f5f9;
    --panel: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #dbe3ec;

    --primary: #0f766e;
    --primary-dark: #115e59;

    --success: #166534;
    --success-bg: #dcfce7;

    --danger: #b91c1c;
    --danger-bg: #fee2e2;

    --warning: #a16207;
    --warning-bg: #fef3c7;

    --neutral-bg: #e2e8f0;

    --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    background: var(--bg);
    color: var(--text);
}

body {
    min-height: 100vh;
}

button,
input,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

.hidden {
    display: none !important;
}

.app-shell {
    min-height: 100vh;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;

    min-height: 72px;
    padding:
        max(12px, env(safe-area-inset-top))
        max(16px, env(safe-area-inset-right))
        12px
        max(16px, env(safe-area-inset-left));

    background: #0f172a;
    color: #ffffff;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    font-weight: 800;
    letter-spacing: 0.08em;
    font-size: 18px;
}

.subbrand {
    margin-top: 2px;
    color: #cbd5e1;
    font-size: 13px;
}

.device-badge {
    max-width: 55%;
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    text-align: right;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.device-online {
    background: #14532d;
    color: #dcfce7;
}

.device-offline {
    background: #7f1d1d;
    color: #fee2e2;
}

.main-content {
    width: min(100%, 960px);
    margin: 0 auto;
    padding: 18px;
    padding-bottom: calc(26px + env(safe-area-inset-bottom));
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 16px;
}

h1,
h2 {
    margin: 0;
}

h1 {
    font-size: 22px;
}

h2 {
    font-size: 19px;
}

.muted {
    color: var(--muted);
}

.small {
    font-size: 13px;
}

.activation-panel {
    max-width: 520px;
    margin: 24px auto;
}

.activation-panel p {
    line-height: 1.55;
}

.field {
    display: block;
    margin-top: 14px;
}

.field > span {
    display: block;
    margin-bottom: 7px;
    font-size: 13px;
    font-weight: 700;
    color: #334155;
}

input,
select {
    width: 100%;
    min-height: 48px;
    padding: 10px 12px;

    border: 1px solid #cbd5e1;
    border-radius: 12px;

    background: #ffffff;
    color: var(--text);

    outline: none;
}

input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

.btn {
    min-height: 46px;
    padding: 10px 16px;

    border-radius: 12px;
    border: 1px solid transparent;

    font-weight: 800;
}

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

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

.btn-secondary {
    background: #ffffff;
    border-color: #cbd5e1;
    color: #334155;
}

.btn-small {
    min-height: 38px;
    padding: 7px 12px;
    font-size: 13px;
}

.btn-danger-outline {
    background: #ffffff;
    color: var(--danger);
    border-color: #fecaca;
}

.activation-panel .btn-primary {
    width: 100%;
    margin-top: 18px;
}

.inline-message {
    margin-top: 12px;
    font-size: 14px;
    line-height: 1.45;
}

.section-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 14px;
}

.departure-meta {
    margin-top: 14px;
    padding: 12px 14px;

    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid var(--border);
}

.departure-meta strong {
    display: block;
    margin-top: 3px;
}

.meta-label {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 14px;
}

.stat-card {
    padding: 14px;
    border-radius: 14px;
    background: #f8fafc;
    border: 1px solid var(--border);
    text-align: center;
}

.stat-card span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.stat-card strong {
    display: block;
    margin-top: 5px;
    font-size: 26px;
}

.scanner-status {
    padding: 8px 10px;
    border-radius: 999px;
    background: #e2e8f0;
    color: #334155;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.04em;
}

.scanner-status.ready {
    background: #dcfce7;
    color: #166534;
}

.camera-area {
    margin-top: 16px;
}

.camera-preview-wrap {
    position: relative;
    width: 100%;
    overflow: hidden;

    aspect-ratio: 4 / 3;
    min-height: 220px;
    max-height: 560px;

    border-radius: 16px;
    background: #020617;
    border: 1px solid #1e293b;
}

.camera-video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    background: #020617;
}

.camera-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;

    display: grid;
    place-items: center;
}

.scan-frame {
    width: min(68vw, 360px);
    max-width: 78%;
    aspect-ratio: 1 / 1;

    border: 3px solid rgba(255, 255, 255, 0.92);
    border-radius: 22px;

    box-shadow:
        0 0 0 999px rgba(2, 6, 23, 0.28),
        0 0 28px rgba(255, 255, 255, 0.12);

    transition:
        border-color 120ms ease,
        box-shadow 120ms ease,
        transform 120ms ease;
}

.camera-area.camera-hit .scan-frame {
    border-color: #86efac;
    box-shadow:
        0 0 0 999px rgba(2, 6, 23, 0.20),
        0 0 34px rgba(134, 239, 172, 0.65);

    transform: scale(1.015);
}

.camera-empty-state {
    position: absolute;
    inset: 0;

    display: grid;
    place-items: center;

    padding: 24px;
    text-align: center;

    color: #cbd5e1;
    font-size: 14px;
    font-weight: 800;

    background:
        radial-gradient(
            circle at center,
            rgba(15, 23, 42, 0.25),
            rgba(2, 6, 23, 0.85)
        );
}

.camera-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.camera-controls .btn {
    flex: 1 1 auto;
}

.camera-select-wrap {
    margin-top: 10px;
}

.camera-message {
    margin-top: 9px;
    line-height: 1.4;
}

.camera-message.camera-error {
    color: var(--danger);
    font-weight: 700;
}

.camera-message.camera-ok {
    color: var(--success);
    font-weight: 700;
}

.scan-input-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
}

.hid-hint {
    margin-top: 14px;
    padding: 12px 14px;

    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid var(--border);

    color: #475569;
    font-size: 13px;
}

.result-panel {
    min-height: 160px;
    margin-bottom: 16px;
    padding: 24px 18px;

    border-radius: 18px;
    border: 2px solid transparent;

    text-align: center;

    transition:
        background 120ms ease,
        transform 120ms ease;
}

.result-neutral {
    background: var(--neutral-bg);
    color: #334155;
}

.result-success {
    background: var(--success-bg);
    color: var(--success);
    border-color: #86efac;
}

.result-error {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: #fca5a5;
}

.result-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border-color: #fde68a;
}

.result-title {
    font-size: clamp(26px, 6vw, 48px);
    font-weight: 950;
    letter-spacing: 0.02em;
}

.result-message {
    margin-top: 7px;
    font-size: 15px;
    font-weight: 700;
}

.result-details {
    margin-top: 20px;

    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.result-details > div {
    padding: 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.55);
}

.result-details span {
    display: block;
    font-size: 11px;
    opacity: 0.75;
}

.result-details strong {
    display: block;
    margin-top: 4px;
    font-size: 13px;
}

.footer-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: space-between;
}

.hid-scanner-input {
    position: fixed;
    left: -10000px;
    top: -10000px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

@media (max-width: 720px) {
    .main-content {
        padding: 12px;
    }

    .panel {
        padding: 14px;
        border-radius: 15px;
    }

    .controls-grid {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .result-details {
        grid-template-columns: 1fr 1fr;
    }

    .footer-actions {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 430px) {
    .topbar {
        min-height: 64px;
    }

    .brand {
        font-size: 16px;
    }

    .device-badge {
        max-width: 50%;
        font-size: 10px;
    }

    .stats-grid {
        gap: 6px;
    }

    .stat-card {
        padding: 10px 6px;
    }

    .stat-card strong {
        font-size: 22px;
    }

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

    .camera-preview-wrap {
        min-height: 280px;
        aspect-ratio: 3 / 4;
    }

    .scan-frame {
        width: min(72vw, 320px);
    }

    .camera-controls .btn {
        min-width: 0;
        padding-left: 10px;
        padding-right: 10px;
    }
}