/* ================================================================
   EDGE AI — Object Detection UI
   Theme: Dark Tactical · Neon Accents · Clean & Performant
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Outfit:wght@300;400;600;700&display=swap');

/* ---- CSS Variables ---- */
:root {
    --green:      #00ff88;
    --green-dim:  rgba(0, 255, 136, 0.15);
    --green-glow: rgba(0, 255, 136, 0.35);
    --bg-deep:    #080e0b;
    --bg-card:    #0f1914;
    --border:     rgba(0, 255, 136, 0.18);
    --text-hi:    #e8f5ee;
    --text-lo:    #5a7a65;
    --scan-amber: #ffb21d;
    --red-err:    #ff4d4d;
    --radius:     14px;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    background: var(--bg-deep);
    color: var(--text-hi);
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Subtle grid texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,255,136,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,136,0.025) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

/* ---- Header ---- */
.app-header {
    position: relative;
    z-index: 10;
    padding: 18px 28px 14px;
    border-bottom: 1px solid var(--border);
    background: rgba(8, 14, 11, 0.85);
    backdrop-filter: blur(12px);
}

.header-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-icon {
    font-size: 28px;
    color: var(--green);
    filter: drop-shadow(0 0 8px var(--green-glow));
    animation: hexPulse 3s ease-in-out infinite;
    line-height: 1;
}

@keyframes hexPulse {
    0%, 100% { opacity: 1; filter: drop-shadow(0 0 8px var(--green-glow)); }
    50%       { opacity: 0.7; filter: drop-shadow(0 0 18px var(--green)); }
}

.brand-text h1 {
    font-family: 'Space Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-hi);
    line-height: 1;
}

.brand-accent {
    color: var(--green);
    text-shadow: 0 0 12px var(--green-glow);
}

.brand-sub {
    font-size: 0.72rem;
    color: var(--text-lo);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 3px;
}

/* ---- Header Stats ---- */
.header-stats {
    display: flex;
    gap: 10px;
}

.stat-chip {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    min-width: 64px;
}

.stat-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.58rem;
    color: var(--text-lo);
    letter-spacing: 0.12em;
}

.stat-value {
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: var(--green);
    text-shadow: 0 0 8px var(--green-glow);
    line-height: 1;
}

/* ---- Status Bar ---- */
.status-container {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: center;
    padding: 14px 20px 0;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 22px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    font-family: 'Outfit', sans-serif;
}

.status-loading {
    background: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.3);
    color: var(--scan-amber);
    animation: pulseAmber 2s ease-in-out infinite;
}

.status-active {
    background: var(--green-dim);
    border-color: var(--green-glow);
    color: var(--green);
}

.status-scanning {
    background: rgba(255, 193, 7, 0.08);
    border-color: rgba(255, 193, 7, 0.2);
    color: rgba(255, 193, 7, 0.8);
}

.status-error {
    background: rgba(255, 77, 77, 0.1);
    border-color: rgba(255, 77, 77, 0.3);
    color: var(--red-err);
}

@keyframes pulseAmber {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.3); }
    50%       { box-shadow: 0 0 0 8px rgba(255, 193, 7, 0); }
}

/* ---- Viewport ---- */
.viewport-container {
    position: relative;
    z-index: 5;
    display: flex;
    justify-content: center;
    padding: 20px 16px 8px;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 820px;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow:
        0 0 0 1px rgba(0,255,136,0.05),
        0 20px 60px rgba(0, 0, 0, 0.7),
        0 0 40px rgba(0, 255, 136, 0.07);
    transition: box-shadow 0.4s ease;
}

.video-wrapper:hover {
    box-shadow:
        0 0 0 1px rgba(0,255,136,0.1),
        0 24px 70px rgba(0, 0, 0, 0.8),
        0 0 55px rgba(0, 255, 136, 0.13);
}

video, canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

video { opacity: 0; }

/* ---- Scan-line Animation ---- */
.scan-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    opacity: 0;
    z-index: 8;
    pointer-events: none;
    animation: scanDown 4s linear infinite;
    box-shadow: 0 0 12px var(--green-glow);
}

@keyframes scanDown {
    0%   { top: 0%;   opacity: 0; }
    5%   { opacity: 0.6; }
    95%  { opacity: 0.3; }
    100% { top: 100%; opacity: 0; }
}

/* ---- Corner Decorations ---- */
.scan-corner {
    position: absolute;
    width: 22px;
    height: 22px;
    z-index: 9;
    pointer-events: none;
    opacity: 0.7;
}

.scan-corner.tl { top: 10px; left: 10px;
    border-top: 2px solid var(--green); border-left: 2px solid var(--green); }
.scan-corner.tr { top: 10px; right: 10px;
    border-top: 2px solid var(--green); border-right: 2px solid var(--green); }
.scan-corner.bl { bottom: 10px; left: 10px;
    border-bottom: 2px solid var(--green); border-left: 2px solid var(--green); }
.scan-corner.br { bottom: 10px; right: 10px;
    border-bottom: 2px solid var(--green); border-right: 2px solid var(--green); }

/* ---- Camera Switch Button ---- */
.cam-switch-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 15;
    background: rgba(8, 14, 11, 0.75);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px;
    color: var(--green);
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.cam-switch-btn:hover:not(:disabled) {
    background: var(--green-dim);
    box-shadow: 0 0 14px var(--green-glow);
    transform: scale(1.05);
}

.cam-switch-btn:active:not(:disabled) { transform: scale(0.97); }
.cam-switch-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- Footer info strip ---- */
.info-strip {
    position: relative;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 20px 20px;
    flex-wrap: wrap;
}

.info-item {
    font-size: 0.72rem;
    color: var(--text-lo);
    letter-spacing: 0.04em;
}

.info-sep {
    color: var(--border);
    font-size: 0.72rem;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
    .app-header { padding: 14px 16px 12px; }
    .brand-text h1 { font-size: 1.2rem; }
    .stat-chip { min-width: 54px; padding: 6px 10px; }
    .stat-value { font-size: 0.9rem; }
    .viewport-container { padding: 14px 10px 6px; }
    .video-wrapper { border-radius: 10px; }
    .info-strip { gap: 6px; }
    .info-sep { display: none; }
}

@media (min-width: 900px) {
    .video-wrapper { max-width: 900px; }
}