:root {
    --bg: #0e0f13;
    --bg-2: #171921;
    --bg-3: #1f2230;
    --border: #2a2e3d;
    --text: #e6e8ee;
    --text-dim: #8a90a3;
    --accent: #ff6b1a;
    --accent-hover: #ff8543;
    --danger: #e74c3c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ==== LOGIN ==== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.login-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 32px 28px;
    width: 100%;
    max-width: 380px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.brand {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.brand-sub {
    color: var(--text-dim);
    font-size: 13px;
    margin-top: -8px;
    margin-bottom: 8px;
}
.login-card label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dim);
}
.login-card input {
    background: var(--bg-3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 15px;
    transition: border-color .15s;
}
.login-card input:focus {
    outline: none;
    border-color: var(--accent);
}
.login-card button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 13px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 4px;
    transition: background .15s;
}
.login-card button:hover { background: var(--accent-hover); }
.erro {
    background: rgba(231, 76, 60, .15);
    color: #ff8474;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 13px;
    border: 1px solid rgba(231, 76, 60, .3);
}

/* ==== TOPBAR ==== */
.topbar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 14px 20px;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.brand-mini {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.tabs {
    display: flex;
    gap: 4px;
    flex: 1;
}
.tab {
    background: transparent;
    color: var(--text-dim);
    border: none;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all .15s;
}
.tab:hover { color: var(--text); background: var(--bg-3); }
.tab.active {
    background: var(--accent);
    color: #fff;
}
.logout {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 6px;
    transition: all .15s;
}
.logout:hover { color: var(--text); background: var(--bg-3); }

/* ==== GRID ==== */
.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    padding: 0;
}
/* Mobile landscape / tablet: 3 colunas */
@media (min-width: 600px) and (orientation: landscape) {
    .grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
    .grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1400px) {
    .grid { grid-template-columns: repeat(4, 1fr); }
}
/* Se poucas câmeras, usa max 4 colunas */
.tile {
    border-radius: 0 !important;
    border: none !important;
}

/* ==== TILE ==== */
.tile {
    position: relative;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    cursor: pointer;
    transition: transform .15s, border-color .15s;
}
.tile:hover { border-color: var(--accent); }
.tile:active { transform: scale(.99); }

.stream,
video-stream.stream {
    width: 100%;
    height: 100%;
    display: block;
    background: #000;
    position: relative;
}
video-stream.stream video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
video-stream.stream .info {
    position: absolute;
    top: 0;
    right: 0;
    padding: 6px 10px;
    color: rgba(255,255,255,.5);
    font-size: 11px;
    pointer-events: none;
}
img.stream { object-fit: cover; }
#fs-video {
    max-width: 100%;
    max-height: 100%;
}
#fs-video video {
    max-width: 100%;
    max-height: 100vh;
    object-fit: contain;
}

.tile-nome {
    position: absolute;
    bottom: 8px;
    left: 10px;
    background: rgba(0,0,0,.65);
    color: #fff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(4px);
}
.tile-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255, 107, 26, .9);
    color: #fff;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Slot vazio */
.tile-vazio {
    background: var(--bg-2);
    cursor: default;
}
.tile-vazio:hover { border-color: var(--border); }
.tile-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-dim);
    position: relative;
}
.tile-placeholder-ico {
    font-size: 40px;
    font-weight: 300;
    color: var(--border);
}
.tile-placeholder-txt {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.tile-vazio .tile-badge {
    background: var(--bg-3);
    color: var(--text-dim);
}

/* ==== FULLSCREEN OVERLAY ==== */
.fs-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fs-overlay.hidden { display: none; }

#fs-video {
    width: 100%;
    height: 100%;
    display: block;
    background: #000;
}
#fs-video video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
}

.fs-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(0,0,0,.6);
    color: #fff;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 22px;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    z-index: 110;
    transition: background .15s;
}
.fs-close:hover { background: rgba(0,0,0,.9); }

#fs-nome {
    position: absolute;
    bottom: 24px;
    left: 24px;
    color: #fff;
    background: rgba(0,0,0,.7);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    z-index: 105;
}
/* Filtro por aba */
.grid[data-filtro="casa"] .tile[data-grupo="loja"] { display: none; }
.grid[data-filtro="loja"] .tile[data-grupo="casa"] { display: none; }

/* ==== PTZ ==== */
.tile-ptz-ico {
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(0, 0, 0, .65);
    color: var(--accent);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    backdrop-filter: blur(4px);
}

.ptz-controls {
    position: absolute;
    bottom: 30px;
    right: 30px;
    z-index: 110;
    display: grid;
    grid-template-columns: repeat(3, 60px);
    grid-template-rows: repeat(3, 60px);
    gap: 4px;
    background: rgba(0, 0, 0, .5);
    padding: 10px;
    border-radius: 12px;
    backdrop-filter: blur(6px);
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}
.fs-close { z-index: 110; }
#fs-nome { z-index: 105; }
.ptz-controls.hidden { display: none; }
@media (max-width: 600px) {
    .ptz-controls {
        grid-template-columns: repeat(3, 48px);
        grid-template-rows: repeat(3, 48px);
        bottom: 20px;
        right: 20px;
    }
}
.ptz-btn {
    background: rgba(255, 255, 255, .12);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 22px;
    cursor: pointer;
    transition: background .1s;
    touch-action: none;
}
.ptz-btn:hover { background: rgba(255, 255, 255, .22); }
.ptz-btn:active,
.ptz-btn.pressed { background: var(--accent); }
.ptz-center { background: rgba(255, 107, 26, .25); }
.ptz-center:hover { background: rgba(255, 107, 26, .5); }