:root {
    color-scheme: dark;
    --bg: #0a0d0c;
    --surface: #111614;
    --surface-raised: #171d1a;
    --line: #29312d;
    --line-strong: #3a4741;
    --text: #f1f5f3;
    --muted: #9aa7a1;
    --accent: #42d99b;
    --accent-deep: #183e30;
    --warning: #e4b95f;
    --danger: #f18478;
    --radius-panel: 14px;
    --radius-control: 8px;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    min-width: 320px;
    min-height: 100dvh;
    margin: 0;
    background:
        linear-gradient(rgba(66, 217, 155, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(66, 217, 155, 0.025) 1px, transparent 1px),
        var(--bg);
    background-size: 32px 32px;
    color: var(--text);
}

button,
input {
    font: inherit;
}

button {
    white-space: nowrap;
}

.app-header {
    min-height: 72px;
    padding: 14px clamp(18px, 3vw, 44px);
    border-bottom: 1px solid var(--line);
    background: rgba(10, 13, 12, 0.96);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border: 1px solid var(--accent);
    border-radius: var(--radius-control);
    display: grid;
    place-items: center;
    color: var(--accent);
    font-weight: 800;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: 17px;
    letter-spacing: 0.01em;
}

.brand p,
.section-title-row p {
    margin-top: 3px;
    color: var(--muted);
    font-size: 12px;
}

.local-badge {
    padding: 7px 10px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    color: #c9d2ce;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.local-badge span,
.connection-label span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(66, 217, 155, 0.1);
}

.workspace {
    width: min(1720px, 100%);
    margin: 0 auto;
    padding: clamp(16px, 2.4vw, 32px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(330px, 420px);
    gap: 18px;
    align-items: start;
}

.viewer-panel,
.status-section,
.hand-section,
.strategy-section,
.privacy-section {
    border: 1px solid var(--line);
    border-radius: var(--radius-panel);
    background: var(--surface);
}

.viewer-panel {
    padding: clamp(14px, 2vw, 22px);
}

.panel-heading,
.section-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.panel-heading {
    margin-bottom: 16px;
}

.panel-heading.compact {
    margin-bottom: 10px;
}

.section-label {
    margin-bottom: 5px;
    color: var(--accent);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.18em;
}

h2 {
    font-size: 17px;
    line-height: 1.25;
}

.connection-label {
    color: var(--muted);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.connection-label span {
    background: #6d7772;
    box-shadow: none;
}

.connection-label[data-state="connected"] {
    color: var(--text);
}

.connection-label[data-state="connected"] span {
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(66, 217, 155, 0.1);
    animation: live-pulse 2s ease-in-out infinite;
}

.connection-label[data-state="error"] span {
    background: var(--danger);
}

@keyframes live-pulse {
    50% {
        opacity: 0.5;
    }
}

.video-stage {
    position: relative;
    min-height: min(66vh, 760px);
    border: 1px solid var(--line);
    border-radius: var(--radius-control);
    overflow: hidden;
    background: #050706;
    display: grid;
    place-items: center;
}

.frame-shell {
    position: relative;
    display: inline-block;
    max-width: 100%;
    max-height: min(66vh, 760px);
    line-height: 0;
}

#live-frame {
    display: none;
    max-width: 100%;
    max-height: min(66vh, 760px);
    width: auto;
    height: auto;
    object-fit: contain;
}

#overlay {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    touch-action: none;
    cursor: crosshair;
}

.empty-state {
    position: absolute;
    inset: 0;
    padding: 24px;
    display: grid;
    place-content: center;
    justify-items: center;
    text-align: center;
    z-index: 2;
}

.empty-state[hidden] {
    display: none;
}

.empty-state strong {
    margin-top: 18px;
    font-size: 15px;
}

.empty-state p {
    max-width: 410px;
    margin-top: 8px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
}

.scan-grid {
    width: 108px;
    height: 74px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-control);
    background:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 18px 18px;
    box-shadow: inset 0 0 26px rgba(66, 217, 155, 0.06);
}

.frame-meta {
    position: absolute;
    right: 10px;
    bottom: 10px;
    z-index: 3;
    padding: 6px 8px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    background: rgba(5, 7, 6, 0.78);
    color: #c4cdc9;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 10px;
    display: flex;
    gap: 10px;
}

.drag-hint {
    margin: 9px 1px 0;
    color: var(--muted);
    font-size: 12px;
}

.controls {
    margin-top: 18px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(190px, 0.34fr);
    gap: 14px;
}

.field {
    min-width: 0;
    display: grid;
    gap: 7px;
}

.field-wide {
    grid-column: 1 / -1;
}

.field label {
    color: #d7dedb;
    font-size: 12px;
    font-weight: 650;
}

.field small {
    color: var(--muted);
    font-size: 11px;
    line-height: 1.45;
}

input[type="url"],
input[type="text"] {
    min-width: 0;
    height: 42px;
    padding: 0 12px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-control);
    outline: none;
    background: #0d110f;
    color: var(--text);
}

input::placeholder {
    color: #738079;
}

input:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

#confidence-value {
    color: var(--accent);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.actions {
    min-height: 40px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 9px;
}

.actions button {
    min-height: 40px;
    padding: 0 16px;
    border-radius: var(--radius-control);
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.actions button:active {
    transform: translateY(1px);
}

.primary-button {
    background: var(--accent);
    color: #07130e;
}

.primary-button:hover {
    background: #67e6b1;
}

.secondary-button {
    border-color: var(--line-strong) !important;
    background: var(--surface-raised);
    color: var(--text);
}

.secondary-button:hover,
.text-button:hover {
    border-color: #58665f !important;
}

.text-button {
    background: transparent;
    color: var(--muted);
}

.actions button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.action-feedback {
    min-width: 120px;
    color: var(--muted);
    font-size: 12px;
}

.analysis-panel {
    display: grid;
    gap: 12px;
}

.status-section,
.hand-section,
.strategy-section,
.privacy-section {
    padding: 18px;
}

.fps-value {
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 10px;
}

.fps-value strong {
    color: var(--text);
    font-size: 16px;
}

.status-list {
    margin: 0;
}

.status-list div {
    min-height: 42px;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.status-list dt {
    color: var(--muted);
    font-size: 12px;
}

.status-list dd {
    margin: 0;
    color: var(--text);
    font-size: 12px;
    font-weight: 650;
    text-align: right;
}

[data-tone="good"] {
    color: var(--accent) !important;
}

[data-tone="warning"] {
    color: var(--warning) !important;
}

[data-tone="danger"] {
    color: var(--danger) !important;
}

.error-message {
    margin-top: 10px;
    padding: 10px 11px;
    border: 1px solid rgba(241, 132, 120, 0.35);
    border-radius: var(--radius-control);
    background: rgba(241, 132, 120, 0.08);
    color: #ffb8b0;
    font-size: 12px;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.hand-count,
.locked-label {
    padding: 5px 7px;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 10px;
}

.hand-list {
    min-height: 116px;
    margin-top: 16px;
    display: flex;
    align-content: flex-start;
    flex-wrap: wrap;
    gap: 7px;
}

.hand-empty {
    width: 100%;
    min-height: 96px;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-control);
    color: var(--muted);
    display: grid;
    place-items: center;
    text-align: center;
    font-size: 12px;
}

.tile-chip {
    min-width: 48px;
    height: 56px;
    padding: 6px;
    border: 1px solid #46534c;
    border-radius: var(--radius-control);
    background: #e7edea;
    color: #111614;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 3px;
    font-weight: 800;
}

.tile-chip small {
    color: #53615a;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 8px;
    font-weight: 700;
}

.stability {
    margin-top: 14px;
}

.stability-bar {
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
    background: var(--line);
    display: block;
}

.stability-bar i {
    width: 0;
    height: 100%;
    background: var(--accent);
    display: block;
    transition: width 220ms ease;
}

.stability p {
    margin-top: 7px;
    color: var(--muted);
    font-size: 11px;
}

.stability[data-state="stable"] p {
    color: var(--accent);
}

.strategy-copy,
.privacy-section p {
    margin-top: 14px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.65;
}

.privacy-section {
    background: transparent;
}

.privacy-section strong {
    font-size: 12px;
}

.privacy-section p {
    margin-top: 6px;
}

@media (max-width: 1020px) {
    .workspace {
        grid-template-columns: 1fr;
    }

    .analysis-panel {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .privacy-section,
    .status-section {
        grid-column: 1 / -1;
    }
}

@media (max-width: 680px) {
    .app-header {
        align-items: flex-start;
    }

    .local-badge {
        padding: 6px;
        font-size: 0;
    }

    .workspace {
        padding: 10px;
    }

    .viewer-panel {
        padding: 12px;
    }

    .video-stage {
        min-height: 54vh;
    }

    .frame-shell,
    #live-frame {
        max-height: 54vh;
    }

    .controls,
    .analysis-panel {
        grid-template-columns: 1fr;
    }

    .model-field,
    .confidence-field,
    .privacy-section,
    .status-section {
        grid-column: auto;
    }

    .frame-meta {
        left: 8px;
        right: auto;
    }
}

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