/* ─────────────────────────────────────────────────────────────
 *  SuperiorChat Connect — Stylesheet
 * ─────────────────────────────────────────────────────────────
 *  Design system built with CSS custom properties for easy
 *  theming. Matches the Android app's call screen tokens.
 * ───────────────────────────────────────────────────────────── */

/* ── Design Tokens ────────────────────────────────────────── */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e1b4b;
    --accent: #6366f1;
    --accent-dark: #4f46e5;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.4);
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --success-border: rgba(16, 185, 129, 0.25);
    --text-primary: #ffffff;
    --text-secondary: #a5b4fc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-blur: 24px;
    --glass-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    --surface: #1e293b;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.4s ease;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    height: 100%;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    overflow: hidden;
    touch-action: none;
    -webkit-tap-highlight-color: transparent;
    height: 100vh;
    height: 100dvh;
    /* Safe area for notched/pill devices */
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
}

/* ── Glassmorphism ────────────────────────────────────────── */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* ── Video Elements ───────────────────────────────────────── */
#remoteVideo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
    display: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

#localVideo {
    width: 104px;
    height: 144px;
    object-fit: cover;
    position: absolute;
    bottom: calc(185px + env(safe-area-inset-bottom, 0px));
    right: 16px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 40;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
    display: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

/* Host Mode (Android App — position below native CallHeader) */
body.is-host #localVideo {
    top: calc(160px + env(safe-area-inset-top, 0px));
    bottom: auto;
    right: 16px;
    width: 108px;
    height: 148px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
}

.mirror {
    transform: scaleX(-1) !important;
}

/* ── Feature 1: Controls Hidden (Immersive Mode) ─────────── */
.controls-hidden .controls-area {
    opacity: 0;
    pointer-events: none;
    transform: translateY(24px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.controls-hidden .status-card {
    background: transparent !important;
    border-color: transparent !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ── Feature 2: Video View Swap (PiP Tap to Swap) ───────── */
body.video-swapped #localVideo {
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    bottom: auto !important;
    right: auto !important;
    border-radius: 0 !important;
    border: none !important;
    z-index: 10 !important;
    box-shadow: none !important;
}

body.video-swapped #remoteVideo {
    width: 104px !important;
    height: 144px !important;
    top: auto !important;
    left: auto !important;
    bottom: calc(185px + env(safe-area-inset-bottom, 0px)) !important;
    right: 16px !important;
    border-radius: var(--radius-lg) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    z-index: 40 !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5) !important;
    transform: none !important;
}

body.is-host.video-swapped #remoteVideo {
    top: calc(160px + env(safe-area-inset-top, 0px)) !important;
    bottom: auto !important;
    right: 16px !important;
    width: 108px !important;
    height: 148px !important;
    border-radius: var(--radius-lg) !important;
    border: 1px solid rgba(255, 255, 255, 0.25) !important;
    z-index: 40 !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6) !important;
}

/* ── UI Overlay Layer ─────────────────────────────────────── */
#ui-layer {
    position: relative;
    z-index: 30;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* ── E2E Encryption Badge ─────────────────────────────────── */
.encryption-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--success);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.encryption-badge i {
    font-size: 0.6rem;
}

/* ── Status Area ──────────────────────────────────────────── */
.status-area {
    padding-top: calc(1.5rem + env(safe-area-inset-top, 0px));
    padding-bottom: 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.status-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 12px 24px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    box-shadow: var(--glass-shadow);
}

#statusText {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    transition: color var(--transition-base);
}

#statusText.connected {
    color: var(--success);
}

#statusText.ended {
    color: var(--danger);
}

#durationText {
    font-size: 0.875rem;
    font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
    margin-top: 0.25rem;
    color: var(--text-muted);
    display: none;
    letter-spacing: 1px;
}

/* ── Avatar ───────────────────────────────────────────────── */
.avatar-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-base);
}

.avatar-container {
    position: relative;
}

.avatar-ring {
    width: 8rem;
    height: 8rem;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.35);
    position: relative;
    z-index: 10;
}

/* ── Pulse Animation ──────────────────────────────────────── */
@keyframes pulse-ring {
    0% {
        transform: scale(0.85);
        opacity: 0.45;
    }

    80% {
        transform: scale(1.6);
        opacity: 0;
    }

    100% {
        transform: scale(1.6);
        opacity: 0;
    }
}

@keyframes pulse-ring-delayed {
    0% {
        transform: scale(0.85);
        opacity: 0;
    }

    33% {
        transform: scale(0.85);
        opacity: 0.45;
    }

    100% {
        transform: scale(1.6);
        opacity: 0;
    }
}

.avatar-pulse::before,
.avatar-pulse::after {
    content: '';
    position: absolute;
    left: -20px;
    top: -20px;
    right: -20px;
    bottom: -20px;
    border-radius: var(--radius-full);
    background: var(--accent-glow);
    z-index: -1;
}

.avatar-pulse::before {
    animation: pulse-ring 1.8s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

.avatar-pulse::after {
    animation: pulse-ring-delayed 1.8s cubic-bezier(0.215, 0.61, 0.355, 1) 0.6s infinite;
}

/* ── Bottom Controls ──────────────────────────────────────── */
.controls-area {
    padding-bottom: calc(2rem + env(safe-area-inset-bottom, 0px));
    padding-top: 2rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, transparent 100%);
    pointer-events: none;
}

.controls-area>* {
    pointer-events: auto;
}

/* Join Button */
.btn-join {
    width: 100%;
    padding: 1rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.4);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.btn-join:hover {
    box-shadow: 0 15px 35px -5px rgba(99, 102, 241, 0.5);
}

.btn-join:active {
    transform: scale(0.97);
}

.btn-join:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Active Controls Row */
.controls-row {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    padding: 1rem 0.5rem;
    border-radius: var(--radius-xl);
    gap: 0.5rem;
}

.controls-row.hidden {
    display: none;
}

/* Control Buttons */
.btn-control {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-control::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    opacity: 0;
    transition: opacity 0.15s;
}

.btn-control:active {
    transform: scale(0.9);
}

.btn-control:active::after {
    opacity: 1;
}

.btn-off {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-on {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-danger {
    background: var(--danger);
    color: var(--text-primary);
    box-shadow: 0 0 20px var(--danger-glow);
    width: 64px;
    height: 64px;
    font-size: 1.35rem;
}

/* ── Control Labels ───────────────────────────────────────── */
.btn-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 6px;
    text-align: center;
    white-space: nowrap;
}

.btn-danger+.btn-label {
    color: rgba(239, 68, 68, 0.7);
}

/* ── Toast Notifications ──────────────────────────────────── */
#toastContainer {
    position: fixed;
    top: calc(4.5rem + env(safe-area-inset-top, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.toast {
    padding: 8px 20px;
    border-radius: var(--radius-full);
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

/* ── Network Banner ───────────────────────────────────────── */
#networkBanner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: calc(6px + env(safe-area-inset-top, 0px)) 6px 6px;
    background: var(--danger);
    color: var(--text-primary);
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 200;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

/* ── Landing View ───────────────────────────────────────── */
.landing-view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    /* Changed from flex, ui.js will set to flex */
    align-items: center;
    justify-content: center;
    z-index: 100;
    background: radial-gradient(circle at center, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 1) 100%);
    overflow: hidden;
}

.landing-glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 3rem 2rem;
    max-width: 450px;
    width: 90%;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 10;
    animation: fadeUpIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.btn-control.btn-danger {
    background: linear-gradient(135deg, #ef4444, #f87171);
    color: white;
}

.btn-control.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.flip-animate i {
    animation: flipRotate 0.4s ease-in-out;
}

@keyframes flipRotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(180deg);
    }
}

.landing-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #7c3aed, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 10px 15px rgba(124, 58, 237, 0.3));
    animation: float 6s ease-in-out infinite;
}

.landing-title {
    font-size: 2rem;
    font-weight: 700;
    color: #f8fafc;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

.landing-subtitle {
    font-size: 1.1rem;
    color: #94a3b8;
    margin-bottom: 2rem;
    font-weight: 500;
}

.landing-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: 1.5rem 0;
}

.landing-instructions {
    font-size: 0.95rem;
    color: #cbd5e1;
    line-height: 1.6;
}

/* Decorative Background Orbs */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    opacity: 0.4;
    animation: floatOrb 15s ease-in-out infinite alternate;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: #7c3aed;
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: #4f46e5;
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

@keyframes fadeUpIn {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes floatOrb {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(50px, 30px) scale(1.1);
    }

    100% {
        transform: translate(-30px, 60px) scale(0.9);
    }
}

.btn-exit {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 12px 24px;
    border-radius: 99px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-exit:hover {
    background: rgba(239, 68, 68, 0.25);
    transform: translateY(-2px);
}

/* ── Picture in Picture Mode (Synchronized via Media Query) ── */
@media (max-width: 250px) {
    body.pip-mode {
        background: transparent !important;
    }

    body.pip-mode #ui-layer,
    body.pip-mode .status-area,
    body.pip-mode .controls-area,
    body.pip-mode .bg-layer {
        display: none !important;
    }

    body.pip-mode.show-local-pip #localVideo {
        display: block !important;
        width: 100% !important;
        height: 100% !important;
        top: 0 !important;
        left: 0 !important;
        bottom: auto !important;
        right: auto !important;
        border-radius: 0 !important;
        border: none !important;
        box-shadow: none !important;
        z-index: 100 !important;
        box-sizing: border-box !important;
        object-fit: cover !important;
    }

    body.pip-mode.show-local-pip #remoteVideo {
        display: none !important;
    }

    body.pip-mode.show-remote-pip #remoteVideo {
        display: block !important;
        width: 100% !important;
        height: 100% !important;
        top: 0 !important;
        left: 0 !important;
        z-index: 100 !important;
        border-radius: 0 !important;
        border: none !important;
        box-sizing: border-box !important;
        object-fit: cover !important;
    }

    body.pip-mode.show-remote-pip #localVideo {
        display: none !important;
    }
}