/* ============================================
   NikitCall — Room Page Styles
   ============================================ */

/* --- Room Container --- */
.room {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

/* --- Top Bar --- */
.room__topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--bg-glass-border);
    z-index: 20;
    flex-shrink: 0;
}

.room__info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo--sm .logo__icon svg {
    width: 24px;
    height: 24px;
}

.logo--sm .logo__text {
    font-size: 1rem;
}

.room__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.room__dot {
    opacity: 0.4;
}

.room__timer {
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}

.room__participants::after {
    content: ' уч.';
}

/* --- Copy Link Button --- */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    color: var(--text-primary);
}

.btn-icon--glass {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
}

.btn-icon--glass:hover {
    background: var(--bg-card);
}

.btn-icon--glass:active {
    transform: scale(0.92);
}

/* --- Video Grid --- */
.video-grid {
    flex: 1;
    display: grid;
    gap: 8px;
    padding: 8px;
    overflow: hidden;
    /* Default: 1 participant */
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

/* Grid layouts per participant count */
.video-grid[data-count="1"] {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

.video-grid[data-count="2"] {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
}

.video-grid[data-count="3"] {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.video-grid[data-count="4"] {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.video-grid[data-count="5"],
.video-grid[data-count="6"] {
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.video-grid[data-count="7"],
.video-grid[data-count="8"] {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

/* --- Video Tile --- */
.video-tile {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--bg-glass-border);
    animation: tileAppear 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes tileAppear {
    from {
        opacity: 0;
        transform: scale(0.85);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.video-tile video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: var(--bg-secondary);
    -webkit-transform: scaleX(1);
    transform: scaleX(1);
}

.video-tile--local video {
    -webkit-transform: scaleX(-1);
    transform: scaleX(-1);
}

.video-tile__name {
    position: absolute;
    bottom: 10px;
    left: 10px;
    padding: 4px 12px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    color: white;
    z-index: 2;
}

.video-tile__muted-icon {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.7);
    border-radius: var(--radius-sm);
    z-index: 2;
    color: white;
}

/* Camera off placeholder */
.video-tile--no-video::after {
    content: '';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    z-index: 1;
}

.video-tile__avatar {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: white;
    z-index: 2;
}

/* --- Controls Bar --- */
.controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 16px 20px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--bg-glass-border);
    z-index: 20;
    flex-shrink: 0;
}

.ctrl-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    background: var(--bg-card);
    border: 1px solid var(--bg-glass-border);
    color: var(--text-primary);
    transition: all var(--transition);
    position: relative;
}

.ctrl-btn:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.ctrl-btn:active {
    transform: translateY(0) scale(0.92);
}

.ctrl-btn--active {
    background: var(--accent-primary) !important;
    border-color: transparent !important;
    box-shadow: 0 0 20px var(--accent-glow);
}

.ctrl-btn--muted {
    background: var(--danger) !important;
    border-color: transparent !important;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
}

.ctrl-btn--leave {
    background: var(--danger);
    border-color: transparent;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
}

.ctrl-btn--leave:hover {
    background: #dc2626;
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.4);
}

.ctrl-btn--screen {
    display: none;
}

/* Show screen share only on desktop */
@media (min-width: 768px) {
    .ctrl-btn--screen {
        display: flex;
    }
}

/* --- Toast Notifications --- */
.toast-container {
    position: fixed;
    top: 72px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
    animation: toastIn 0.3s ease-out, toastOut 0.3s ease-in 2.7s forwards;
    box-shadow: var(--shadow-md);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 20px;
}

.modal-overlay.hidden {
    display: none;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-xl);
    padding: 36px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    animation: modalAppear 0.3s ease-out;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal__title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.modal__input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition);
    margin-bottom: 20px;
}

.modal__input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.modal__input::placeholder {
    color: var(--text-muted);
}

.btn--modal {
    width: 100%;
    justify-content: center;
    padding: 14px;
}

/* --- Mobile Responsive --- */
@media (max-width: 640px) {
    .video-grid {
        gap: 4px;
        padding: 4px;
    }

    .video-grid[data-count="2"] {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }

    .video-grid[data-count="3"] {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr 1fr;
    }

    .video-grid[data-count="5"],
    .video-grid[data-count="6"] {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr 1fr 1fr;
    }

    .video-grid[data-count="7"],
    .video-grid[data-count="8"] {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr 1fr 1fr 1fr;
    }

    .ctrl-btn {
        width: 50px;
        height: 50px;
    }

    .controls {
        gap: 12px;
        padding: 12px 16px;
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    }

    .video-tile__avatar {
        width: 56px;
        height: 56px;
        font-size: 1.4rem;
    }

    .room__topbar {
        padding: 8px 12px;
    }
}

/* Landscape on mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .video-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        grid-template-rows: 1fr;
    }

    .controls {
        position: fixed;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        flex-direction: column;
        padding: 12px;
        border-top: none;
        border-left: 1px solid var(--bg-glass-border);
        border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    }
}

/* --- Signal Quality Badge --- */
.signal-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 3px 8px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    z-index: 3;
    color: #22c55e;
}

/* --- Camera Off Icon (remote) --- */
.video-tile__cam-off-icon {
    position: absolute;
    top: 10px;
    right: 44px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(107, 114, 128, 0.7);
    border-radius: var(--radius-sm);
    z-index: 2;
    color: white;
}

/* --- Flip Camera Button --- */
.ctrl-btn--flip {
    display: flex;
}

/* Only show on mobile by default (most useful for phones with 2 cameras) */
@media (min-width: 768px) {
    .ctrl-btn--flip {
        display: none;
    }
}