@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
    --bg: #071014;
    --panel: rgba(13, 22, 27, 0.76);
    --line: rgba(180, 240, 238, 0.14);
    --text: #e9ffff;
    --muted: rgba(210, 240, 240, 0.48);
    --cyan: #8fffea;
    --cyan-soft: rgba(143, 255, 234, 0.22);
    --blue: #8ac7ff;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background:
        radial-gradient(circle at 50% 20%, rgba(42, 106, 112, 0.16), transparent 34%),
        radial-gradient(circle at 85% 85%, rgba(73, 124, 177, 0.10), transparent 30%),
        var(--bg);
    color: var(--text);
    font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
    padding: 28px;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.24;
    background-image:
        linear-gradient(rgba(150, 230, 230, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(150, 230, 230, 0.035) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.tech-header {
    width: min(1280px, 100%);
    margin: 0 auto 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--line);
    padding: 0 4px 17px;
}

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

.brand-mark {
    width: 13px;
    height: 13px;
    border: 1px solid var(--cyan);
    transform: rotate(45deg);
    box-shadow: 0 0 18px rgba(143, 255, 234, 0.34);
}

.brand-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.22em;
}

.brand-subtitle,
.system-status,
.panel-label,
.panel-info,
.camera-meta,
.footer {
    font-family: "Space Mono", monospace;
}

.brand-subtitle {
    margin-top: 4px;
    color: var(--muted);
    font-size: 9px;
    letter-spacing: 0.13em;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.12em;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 12px rgba(143, 255, 234, 0.8);
}

.app {
    width: min(1280px, 100%);
    margin: 0 auto;
}

.control-panel {
    margin-bottom: 16px;
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.045),
        rgba(255, 255, 255, 0.012)
    );
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
}

.panel-label {
    margin: 0 0 10px 4px;
    color: var(--muted);
    font-size: 9px;
    letter-spacing: 0.18em;
}

.mode-selector {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.mode-button {
    position: relative;
    min-height: 72px;
    padding: 11px 12px;
    border: 1px solid rgba(180, 240, 238, 0.09);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.025);
    color: var(--muted);
    text-align: left;
    cursor: pointer;
    overflow: hidden;
    transition:
        border-color 220ms ease,
        background 220ms ease,
        transform 220ms ease,
        color 220ms ease;
}

.mode-button::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 7px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(143, 255, 234, 0.25),
        transparent
    );
    opacity: 0;
    transition: opacity 220ms ease;
}

.mode-button:hover {
    color: var(--text);
    border-color: rgba(143, 255, 234, 0.28);
    background: rgba(143, 255, 234, 0.045);
    transform: translateY(-1px);
}

.mode-button.active {
    color: var(--text);
    border-color: rgba(143, 255, 234, 0.42);
    background:
        linear-gradient(
            135deg,
            rgba(143, 255, 234, 0.10),
            rgba(138, 199, 255, 0.045)
        );
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.09),
        0 8px 30px rgba(45, 130, 135, 0.10);
}

.mode-button.active::after {
    opacity: 1;
}

.mode-number {
    display: block;
    margin-bottom: 5px;
    color: rgba(143, 255, 234, 0.65);
    font: 700 9px "Space Mono", monospace;
    letter-spacing: 0.12em;
}

.mode-name {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.mode-desc {
    display: block;
    margin-top: 4px;
    font-size: 9px;
    opacity: 0.58;
}

.panel-info {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 10px;
    padding: 0 4px;
    color: rgba(210, 240, 240, 0.36);
    font-size: 8px;
    letter-spacing: 0.1em;
}

.camera-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 22px;
    border: 1px solid rgba(190, 240, 240, 0.16);
    background: #03090b;
    box-shadow:
        0 30px 90px rgba(0, 0, 0, 0.34),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

#video,
#canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}

#video {
    opacity: 0.88;
    filter: saturate(0.78) contrast(0.94) brightness(0.82);
}

#canvas {
    pointer-events: none;
}

.camera-container::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(
            180deg,
            rgba(0, 0, 0, 0.15),
            transparent 20%,
            transparent 78%,
            rgba(0, 0, 0, 0.20)
        );
}

.camera-overlay {
    position: absolute;
    width: 32px;
    height: 32px;
    pointer-events: none;
    z-index: 3;
    opacity: 0.6;
}

.camera-overlay::before,
.camera-overlay::after {
    content: "";
    position: absolute;
    background: rgba(190, 250, 245, 0.55);
}

.top-left {
    top: 18px;
    left: 18px;
    border-top: 1px solid rgba(190, 250, 245, 0.55);
    border-left: 1px solid rgba(190, 250, 245, 0.55);
}

.top-right {
    top: 18px;
    right: 18px;
    border-top: 1px solid rgba(190, 250, 245, 0.55);
    border-right: 1px solid rgba(190, 250, 245, 0.55);
}

.bottom-left {
    bottom: 18px;
    left: 18px;
    border-bottom: 1px solid rgba(190, 250, 245, 0.55);
    border-left: 1px solid rgba(190, 250, 245, 0.55);
}

.bottom-right {
    bottom: 18px;
    right: 18px;
    border-bottom: 1px solid rgba(190, 250, 245, 0.55);
    border-right: 1px solid rgba(190, 250, 245, 0.55);
}

.camera-meta {
    position: absolute;
    z-index: 4;
    left: 25px;
    right: 25px;
    bottom: 21px;
    display: flex;
    justify-content: space-between;
    color: rgba(230, 255, 250, 0.46);
    font-size: 8px;
    letter-spacing: 0.13em;
}

.footer {
    width: min(1280px, 100%);
    margin: 13px auto 0;
    display: flex;
    justify-content: space-between;
    color: rgba(210, 240, 240, 0.30);
    font-size: 8px;
    letter-spacing: 0.12em;
}

.footer strong {
    color: rgba(143, 255, 234, 0.62);
}

@media (max-width: 850px) {
    body {
        padding: 15px;
    }

    .mode-selector {
        grid-template-columns: repeat(2, 1fr);
    }

    .mode-button:last-child {
        grid-column: span 2;
    }

    .footer {
        flex-direction: column;
        gap: 6px;
    }

    .system-status {
        display: none;
    }
}