:root {
    --accent: #9ad83e;
    --accent-strong: #b5ef5a;
    --bg: #0d0f10;
    --panel: #171a1c;
    --panel-2: #202426;
    --line: #323739;
    --text: #f3f6f0;
    --muted: #9ca5a0;
    --danger: #ff5c5c;
}

* {
    box-sizing: border-box;
}

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

body {
    min-height: 100vh;
    min-height: 100dvh;
    overscroll-behavior: none;
}

button,
input {
    font: inherit;
}

button {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.hidden {
    display: none !important;
}

.cache-compat {
    display: none !important;
}

.topbar {
    min-height: 64px;
    display: grid;
    grid-template-columns: minmax(80px, 1fr) auto minmax(80px, 1fr);
    align-items: center;
    gap: 16px;
    padding: calc(10px + env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) 10px max(18px, env(safe-area-inset-left));
    border-bottom: 1px solid #24282a;
    background: #111314;
}

.topbar h1 {
    margin: 0;
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    letter-spacing: -0.025em;
    text-align: center;
    color: var(--accent-strong);
}

.topbar h1 span {
    color: var(--text);
    font-weight: 500;
}

.home-link {
    color: var(--muted);
    text-decoration: none;
    font-weight: 650;
    transition: color 160ms ease;
}

.home-link {
    justify-self: end;
    font-size: 1.55rem;
}

.home-link:hover {
    color: var(--accent);
}

.app-shell {
    width: min(1420px, 100%);
    margin: 0 auto;
    padding: 14px clamp(10px, 2vw, 26px) calc(22px + env(safe-area-inset-bottom));
}

.source-bar {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 12px;
}

.source-button,
.action-button,
.tool-button,
.icon-button,
.frame-button,
.speed-control button,
.camera-side-button {
    border: 1px solid var(--line);
    color: var(--text);
    background: var(--panel-2);
    cursor: pointer;
    border-radius: 10px;
    min-height: 44px;
    font-weight: 700;
    transition: background 150ms ease, border-color 150ms ease, color 150ms ease, transform 100ms ease;
}

.source-button {
    padding: 9px 16px;
}

.source-button.primary {
    color: #11150d;
    background: var(--accent);
    border-color: var(--accent);
}

button:active {
    transform: scale(0.97);
}

button:focus-visible,
input:focus-visible,
.media-stage:focus-visible {
    outline: 3px solid rgba(154, 216, 62, 0.45);
    outline-offset: 2px;
}

.studio {
    display: grid;
    gap: 10px;
}

.media-stage {
    position: relative;
    width: 100%;
    height: min(67vh, 760px);
    min-height: 360px;
    overflow: hidden;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at 50% 48%, #1b2022 0, #111415 58%, #090a0b 100%);
    border: 1px solid #2b3032;
    border-radius: 16px;
    box-shadow: 0 20px 55px rgba(0, 0, 0, 0.3);
}

.media-element {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #050606;
}

#annotation-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 4;
    pointer-events: none;
    touch-action: none;
}

#annotation-canvas.drawing-enabled {
    pointer-events: auto;
    cursor: crosshair;
}

.empty-state {
    color: var(--muted);
    text-align: center;
    user-select: none;
}

.empty-state p {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 650;
}

.stage-badge {
    position: absolute;
    z-index: 8;
    top: 14px;
    left: 14px;
    padding: 7px 11px;
    border-radius: 999px;
    color: #fff;
    background: rgba(8, 10, 10, 0.7);
    backdrop-filter: blur(8px);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.stage-badge.recording {
    color: #fff;
    background: rgba(185, 24, 24, 0.82);
}

.transport,
.analysis-bar {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 62px;
    padding: 9px;
    border: 1px solid #292e30;
    border-radius: 14px;
    background: var(--panel);
}

.transport-play,
.icon-button,
.frame-button {
    flex: 0 0 44px;
    width: 44px;
    padding: 0;
    font-size: 1rem;
}

.transport-play {
    color: #11150d;
    background: var(--accent);
    border-color: var(--accent);
}

.frame-button {
    font-size: 0.85rem;
}

.timeline {
    min-width: 120px;
    flex: 1 1 auto;
    accent-color: var(--accent);
    cursor: pointer;
}

.time-display {
    min-width: 102px;
    color: var(--muted);
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
    text-align: center;
}

.speed-control {
    display: flex;
    gap: 4px;
    padding: 3px;
    border-radius: 11px;
    background: #101314;
}

.speed-control button {
    min-height: 38px;
    padding: 0 10px;
    border: 0;
    background: transparent;
    color: var(--muted);
    border-radius: 8px;
    font-size: 0.78rem;
}

.speed-control button.active {
    color: #11150d;
    background: var(--accent);
}

.analysis-bar {
    flex-wrap: wrap;
}

.tool-group,
.color-group,
.action-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tool-group {
    padding-right: 10px;
    border-right: 1px solid var(--line);
}

.tool-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 13px;
    color: var(--muted);
}

.tool-button.active {
    color: var(--accent-strong);
    border-color: #5c792f;
    background: #26301d;
}

.angle-icon {
    width: 18px;
    height: 14px;
    display: inline-block;
    border-left: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: skewX(-32deg);
}

.circle-icon {
    width: 17px;
    height: 17px;
    display: inline-block;
    border: 2px solid currentColor;
    border-radius: 50%;
}

.edit-icon {
    display: inline-block;
    color: currentColor;
    font-size: 1.1rem;
    line-height: 1;
}

.color-group {
    padding: 0 6px;
}

.color-button {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 3px solid var(--panel);
    border-radius: 50%;
    box-shadow: 0 0 0 1px #4a4f51;
    cursor: pointer;
}

.color-button.active {
    box-shadow: 0 0 0 2px #eef2ec;
}

.color-button.yellow { background: #ffd43b; }
.color-button.red { background: #ff5c5c; }
.color-button.blue { background: #4dd7ff; }

.tool-hint {
    flex: 1 1 170px;
    color: var(--muted);
    font-size: 0.78rem;
    text-align: center;
}

.action-group {
    margin-left: auto;
}

.action-button {
    padding: 0 14px;
    color: #11150d;
    background: var(--accent);
    border-color: var(--accent);
}

button:disabled {
    opacity: 0.35;
    cursor: default;
    transform: none;
}

.camera-controls {
    position: absolute;
    z-index: 10;
    left: 50%;
    bottom: max(18px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(8px, 2vw, 16px);
    padding: 9px 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 999px;
    background: rgba(8, 10, 10, 0.72);
    backdrop-filter: blur(12px);
}

.camera-settings {
    position: absolute;
    z-index: 11;
    left: 50%;
    bottom: calc(max(18px, env(safe-area-inset-bottom)) + 91px);
    width: min(480px, calc(100% - 20px));
    transform: translateX(-50%);
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 10px;
    align-items: end;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 14px;
    background: rgba(17, 20, 21, 0.94);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(14px);
}

.camera-settings label {
    display: grid;
    gap: 5px;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 750;
}

.camera-settings select,
.camera-settings button {
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 9px;
    color: var(--text);
    background: var(--panel-2);
    font-weight: 700;
}

.camera-settings select {
    min-width: 0;
    padding: 0 9px;
}

.camera-settings button {
    padding: 0 13px;
    color: #11150d;
    border-color: var(--accent);
    background: var(--accent);
    cursor: pointer;
}

#camera-actual {
    grid-column: 1 / -1;
    min-height: 1em;
    color: var(--accent-strong);
    font-size: 0.72rem;
    font-weight: 750;
    text-align: center;
}

.shutter,
.record {
    position: relative;
    width: 62px;
    height: 62px;
    border: 3px solid #fff;
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
}

.shutter span,
.record span {
    position: absolute;
    inset: 5px;
    border-radius: 50%;
    background: #fff;
    transition: border-radius 160ms ease, inset 160ms ease;
}

.record span {
    background: var(--danger);
}

.record.recording span {
    inset: 15px;
    border-radius: 5px;
}

.camera-side-button {
    width: 44px;
    padding: 0;
    font-size: 1.5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.toast {
    position: fixed;
    z-index: 1000;
    left: 50%;
    bottom: max(22px, env(safe-area-inset-bottom));
    transform: translate(-50%, 18px);
    padding: 9px 14px;
    border-radius: 9px;
    color: #11150d;
    background: var(--accent-strong);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    font-size: 0.85rem;
    font-weight: 750;
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

.studio.fullscreen-fallback,
.studio:fullscreen,
.studio:-webkit-full-screen {
    position: fixed !important;
    inset: 0 !important;
    z-index: 99999 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    display: grid !important;
    grid-template-rows: minmax(0, 1fr) auto auto;
    gap: 6px;
    padding: max(6px, env(safe-area-inset-top)) max(6px, env(safe-area-inset-right)) max(6px, env(safe-area-inset-bottom)) max(6px, env(safe-area-inset-left));
    background: #050606;
}

.studio.fullscreen-fallback .media-stage,
.studio:fullscreen .media-stage,
.studio:-webkit-full-screen .media-stage {
    height: auto !important;
    min-height: 0 !important;
    border-radius: 8px;
}

.studio.fullscreen-fallback .transport,
.studio.fullscreen-fallback .analysis-bar,
.studio:fullscreen .transport,
.studio:fullscreen .analysis-bar,
.studio:-webkit-full-screen .transport,
.studio:-webkit-full-screen .analysis-bar {
    min-height: 52px;
    flex-wrap: nowrap;
    gap: 6px;
    padding: 5px;
    overflow-x: auto;
    border-radius: 10px;
    scrollbar-width: none;
}

.studio.fullscreen-fallback .transport::-webkit-scrollbar,
.studio.fullscreen-fallback .analysis-bar::-webkit-scrollbar,
.studio:fullscreen .transport::-webkit-scrollbar,
.studio:fullscreen .analysis-bar::-webkit-scrollbar,
.studio:-webkit-full-screen .transport::-webkit-scrollbar,
.studio:-webkit-full-screen .analysis-bar::-webkit-scrollbar {
    display: none;
}

.studio.fullscreen-fallback .timeline,
.studio:fullscreen .timeline,
.studio:-webkit-full-screen .timeline {
    order: initial;
    flex: 1 0 110px;
}

.studio.fullscreen-fallback .speed-control,
.studio:fullscreen .speed-control,
.studio:-webkit-full-screen .speed-control {
    order: initial;
    width: auto;
    margin-left: 0;
    flex: 0 0 auto;
}

.studio.fullscreen-fallback .tool-group,
.studio.fullscreen-fallback .color-group,
.studio.fullscreen-fallback .action-group,
.studio:fullscreen .tool-group,
.studio:fullscreen .color-group,
.studio:fullscreen .action-group,
.studio:-webkit-full-screen .tool-group,
.studio:-webkit-full-screen .color-group,
.studio:-webkit-full-screen .action-group {
    flex: 0 0 auto;
    width: auto;
    margin-left: 0;
    order: initial;
}

.studio.fullscreen-fallback .tool-hint,
.studio:fullscreen .tool-hint,
.studio:-webkit-full-screen .tool-hint {
    display: none;
}

body.fullscreen-active {
    overflow: hidden;
}

@media (hover: hover) {
    .source-button:hover,
    .action-button:hover,
    .tool-button:hover,
    .icon-button:hover,
    .frame-button:hover,
    .camera-side-button:hover {
        border-color: #66706c;
        background: #2b3032;
    }

    .source-button.primary:hover,
    .action-button:hover,
    .transport-play:hover {
        border-color: var(--accent-strong);
        background: var(--accent-strong);
    }
}

@media (max-width: 900px) {
    .media-stage {
        height: min(59vh, 650px);
        min-height: 330px;
    }

    .transport {
        flex-wrap: wrap;
    }

    .timeline {
        order: 5;
        flex-basis: 100%;
    }

    .speed-control {
        margin-left: auto;
    }
}

@media (max-width: 620px) {
    .topbar {
        min-height: 56px;
        grid-template-columns: 42px 1fr 42px;
        padding-left: 12px;
        padding-right: 12px;
    }

    .topbar h1 span {
        display: none;
    }

    .source-bar {
        display: grid;
        grid-template-columns: 1.2fr 1fr 1fr;
    }

    .source-button {
        padding: 7px 8px;
        font-size: 0.79rem;
    }

    .media-stage {
        min-height: 280px;
        height: 48vh;
    }

    .time-display {
        margin-left: auto;
    }

    .speed-control {
        order: 6;
        width: 100%;
    }

    .speed-control button {
        flex: 1;
    }

    .analysis-bar {
        align-items: stretch;
    }

    .tool-group {
        flex: 1 1 auto;
    }

    .tool-button {
        flex: 1;
        justify-content: center;
    }

    .tool-hint {
        order: 4;
        flex-basis: 100%;
        padding: 2px 0;
    }

    .action-group {
        order: 5;
        width: 100%;
        margin: 0;
    }

    .action-group .action-button {
        flex: 1;
    }

    .camera-settings {
        grid-template-columns: 1fr 1fr;
    }

    .camera-settings button {
        grid-column: 1 / -1;
    }
}

@media (orientation: landscape) and (max-height: 620px) {
    .topbar {
        min-height: 48px;
        padding-top: calc(6px + env(safe-area-inset-top));
        padding-bottom: 6px;
    }

    .app-shell {
        padding-top: 8px;
    }

    .source-bar {
        margin-bottom: 7px;
    }

    .source-button {
        min-height: 38px;
        padding-top: 6px;
        padding-bottom: 6px;
    }

    .media-stage {
        height: calc(100vh - 230px);
        height: calc(100dvh - 230px);
        min-height: 240px;
    }
}

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