/* ============================================
   Video Call Module Styles - fairShared.VideoCallModule
   Modern, Responsive, Unified Design System
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
    /* Spacing Scale */
    --vcm-spacing-xs: 4px;
    --vcm-spacing-sm: 8px;
    --vcm-spacing-md: 12px;
    --vcm-spacing-lg: 16px;
    --vcm-spacing-xl: 24px;
    --vcm-spacing-xxl: 32px;
    --vcm-spacing-xxxl: 48px;

    /* Border Radius */
    --vcm-radius-sm: 8px;
    --vcm-radius-md: 12px;
    --vcm-radius-lg: 16px;
    --vcm-radius-xl: 20px;

    /* Shadows - Elevation System */
    --vcm-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.12);
    --vcm-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --vcm-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.20);
    --vcm-shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.30);

    /* Colors - Semantic Palette */
    --vcm-primary: var(--mud-palette-primary, #2167ae);
    --vcm-secondary: var(--mud-palette-secondary, #00B5E2);
    --vcm-success: var(--mud-palette-success, #45890b);
    --vcm-error: var(--mud-palette-error, #dc3545);
    --vcm-warning: var(--mud-palette-warning, #ff9800);
    --vcm-info: var(--mud-palette-info, #2196f3);

    /* Surface Colors */
    --vcm-video-bg: #1a1a1a;
    --vcm-surface: #ffffff;
    --vcm-surface-hover: #f5f5f5;
    --vcm-surface-alt: #fafafa;
    --vcm-border: rgba(0, 0, 0, 0.12);
    --vcm-border-strong: rgba(0, 0, 0, 0.20);

    /* Text Colors */
    --vcm-text-primary: rgba(0, 0, 0, 0.87);
    --vcm-text-secondary: rgba(0, 0, 0, 0.60);
    --vcm-text-disabled: rgba(0, 0, 0, 0.38);

    /* Transitions */
    --vcm-transition-fast: 0.15s;
    --vcm-transition-normal: 0.3s;
    --vcm-transition-slow: 0.5s;
    --vcm-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --vcm-ease-in: cubic-bezier(0.4, 0, 1, 1);
    --vcm-ease-out: cubic-bezier(0, 0, 0.2, 1);

    /* Z-Index Scale */
    --vcm-z-base: 1;
    --vcm-z-video-pip: 10;
    --vcm-z-controls: 20;
    --vcm-z-flash: 25;
    --vcm-z-modal: 100;
    --vcm-z-fullscreen: 1000;   /* Unter MudBlazor Popovers (1400+) */
    --vcm-z-drawer: 1000;
    --vcm-z-menu: 10000;        /* Fallback - sollte nicht nötig sein */
    --vcm-z-overlay: 1001;      /* Photo Preview etc. */
}

/* ============================================
   Global Styles & Base Layout
   ============================================ */

.video-call-host,
.video-call-wrapper {
    font-family: var(--mud-typography-default-family, 'Roboto', sans-serif);
    box-sizing: border-box;
    width: 100%;
    height: 100%;
}

video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: var(--vcm-video-bg);
}

/* ============================================
   WRAPPER Component Styles
   VideoCallWrapper: Loading, Error, and Host Container
   ============================================ */

.video-call-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-call-wrapper.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--vcm-z-fullscreen); /* 1300 - UNTER MudBlazor Popovers (1400+) */
    background: #000;
    height: 100dvh;
    width: 100vw;
    /* iOS safe areas */
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}

.video-call-wrapper.embedded {
    min-height: 500px;
    max-height: 100%;
    border-radius: var(--vcm-radius-md);
    overflow: hidden;
}

.video-call-wrapper .loading-state,
.video-call-wrapper .error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    padding: var(--vcm-spacing-xxxl) var(--vcm-spacing-xl);
    text-align: center;
    width: 100%;
}

/* ============================================
   HOST Component Styles
   VideoCallHost: Container for all three views
   ============================================ */

.video-call-host {
    position: relative;
    display: flex;
    flex-direction: column;
}

.video-call-host.fullscreen {
    height: 100dvh;
    min-height: 100dvh;
}

.video-call-host.embedded {
    height: 100%;
    min-height: 500px;
}

/* ============================================
   JOIN ROOM VIEW
   Takes only the space it needs, centered
   ============================================ */

.vcm-join-room {
    width: 100%;
    min-height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--vcm-spacing-md);
    box-sizing: border-box;
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
    overflow-y: auto;
    overflow-x: hidden;
}

.vcm-join-room.vcm-fullscreen {
    min-height: 100dvh;
    max-height: 100dvh;
    padding: var(--vcm-spacing-lg) var(--vcm-spacing-md);
}

.vcm-join-room.vcm-embedded {
    min-height: 500px;
    height: 100%;
    background: var(--vcm-surface);
}

.vcm-join-content {
    width: 100%;
    max-width: 500px;
    animation: vcmFadeIn var(--vcm-transition-normal) var(--vcm-ease-out);
    padding: var(--vcm-spacing-sm) 0;
}

.vcm-join-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    gap: var(--vcm-spacing-md);
    max-width: 400px;
    margin: 0 auto;
    padding: var(--vcm-spacing-xl) var(--vcm-spacing-lg);
    background: var(--mud-palette-background-grey);
    border-radius: var(--vcm-radius-lg);
    box-shadow: var(--vcm-shadow-sm);
    border: 1px solid var(--mud-palette-lines-default);
}

/* Error Alert - Simple styling for critical errors */
.vcm-error-alert {
    max-width: 400px;
    margin: var(--vcm-spacing-xl) auto;
    border-radius: var(--vcm-radius-lg) !important;
}

.vcm-join-stack {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--vcm-spacing-md);
}

/* Video Preview Card */
.vcm-preview-card {
    border-radius: var(--vcm-radius-md) !important;
    overflow: hidden;
    background: var(--vcm-surface);
    box-shadow: var(--vcm-shadow-md) !important;
}

.vcm-video-preview {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio - kompakter */
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: var(--vcm-radius-sm);
    overflow: hidden;
}

.vcm-video-preview-element {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.vcm-video-preview-element video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Device Selector Styles */
.vcm-device-select {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--vcm-spacing-sm);
}

.vcm-device-label {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-xs);
}

.vcm-blur-toggle {
    margin: 0 !important;
}

/* Background Mode Selector */
.vcm-bg-mode-selector {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.vcm-bg-mode-btn {
    flex: 1 1 0;
    min-width: 0;
    font-size: 0.75rem !important;
    text-transform: none !important;
    letter-spacing: normal !important;
}

/* Background Image Upload */
.vcm-bg-image-upload {
    padding: var(--vcm-spacing-xs) 0;
}

.vcm-bg-image-preview {
    position: relative;
    width: 100%;
    height: 80px;
    border-radius: var(--vcm-radius-sm);
    overflow: hidden;
    border: 1px solid var(--vcm-border);
}

.vcm-bg-image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vcm-bg-image-remove {
    position: absolute !important;
    top: 2px;
    right: 2px;
    background-color: rgba(0, 0, 0, 0.5) !important;
    color: white !important;
}

/* Join Button */
.vcm-join-button-container {
    margin-top: var(--vcm-spacing-sm);
}

.vcm-join-button {
    height: 48px !important;
    font-size: 1rem !important;
    font-weight: 600 !important;
    border-radius: var(--vcm-radius-md) !important;
    box-shadow: 0 4px 14px rgba(76, 175, 80, 0.4) !important;
    transition: all var(--vcm-transition-normal) var(--vcm-ease) !important;
}

.vcm-join-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.5) !important;
}

.vcm-join-button:active:not(:disabled) {
    transform: translateY(0);
}

/* ============================================
   CALL VIEW (InCall)
   Fills entire available space
   ============================================ */

.video-call-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: var(--vcm-video-bg);
    box-sizing: border-box;
}

.video-call-container.fullscreen {
    height: 100dvh;
    min-height: 100dvh;
    padding-top: env(safe-area-inset-top, 0);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}

.video-call-container.embedded {
    height: 100%;
    min-height: 500px;
    border-radius: var(--vcm-radius-md);
    overflow: hidden;
}

/* Video Content Container - fills remaining space */
.video-content-container {
    position: absolute; /* KRITISCH: Nimmt kompletten Raum ein */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0; /* Bis ganz unten - keine Platzreservierung für Controls */
    display: flex;
    gap: var(--vcm-spacing-md);
    overflow: hidden;
    padding: var(--vcm-spacing-md);
}

.video-main-area {
    flex: 1;
    min-width: 0;
    position: relative; /* ZURÜCK - wird für PiP-Positioning benötigt */
    overflow: hidden;
    isolation: isolate; /* KRITISCH: Isoliert Video-Stacking von Controls */
    z-index: 1; /* Niedrig - Videos sollen unter Controls sein */
}

.video-grid {
    height: 100%;
    position: static;
    min-height: 0;
}

.attendee-video-item,
.presenter-video-item {
    height: 100%;
}

.video-container {
    position: relative;
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: var(--vcm-radius-sm);
    overflow: hidden;
}

.attendee-video {
    height: 100%;
    min-height: 200px;
}

.presenter-video {
    position: absolute;
    bottom: 100px; /* KONSTANTER Abstand für alle Modi (Embedded) */
    right: 20px;
    width: 240px;
    height: 135px;
    z-index: var(--vcm-z-video-pip);
    border: 2px solid #fff;
    border-radius: var(--vcm-radius-sm);
    overflow: hidden;
    background: #000;
    box-shadow: var(--vcm-shadow-lg);
    transition: transform var(--vcm-transition-fast) var(--vcm-ease);
}

/* Fullscreen Mode: Mehr Abstand für Touch-Controls */
.video-call-container.fullscreen .presenter-video {
    bottom: 120px; /* Reduziert für mehr Video-Fläche auf Mobile */
}

.presenter-video:hover {
    transform: scale(1.05);
}

.video-element {
    width: 100%;
    height: 100%;
    position: relative; /* ZURÜCK - wird für absolute positioning des video-Tags benötigt */
}

.video-element video {
    width: 100%;
    height: 100%;
    position: absolute; /* ZURÜCK - füllt den Parent komplett aus */
    top: 0;
    left: 0;
    object-fit: cover;
}

/* PiP Videos use contain to show full video with letterboxing */
.presenter-video .video-element video {
    object-fit: contain !important;
}

.no-video-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100%;
    color: #888;
    background: var(--vcm-video-bg);
    z-index: var(--vcm-z-base);
    pointer-events: none;
}

.attendee-video.has-video .no-video-placeholder,
.presenter-video.has-video .no-video-placeholder {
    display: none !important;
}

/* Call Mode Switching - Presentation vs Photo Mode */
/* In Presentation Mode: presenter-video wird groß, attendee-video wird PiP */
.video-call-container.presentation-mode .presenter-video-item {
    position: absolute !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100% !important;
    height: 100% !important;
    z-index: var(--vcm-z-base);
    margin: 0 !important;
}

.video-call-container.presentation-mode .presenter-video-item .presenter-video {
    position: static !important;
    width: 100% !important;
    height: 100% !important;
    border: none;
    box-shadow: none;
    bottom: auto;
    right: auto;
}

.video-call-container.presentation-mode .presenter-video-item .presenter-video .video-element video {
    object-fit: cover;
}

/* Attendee wird PiP in Presentation Mode - GLEICHE Abstände wie presenter-video */
.video-call-container.presentation-mode .attendee-video-item {
    position: absolute !important;
    bottom: 100px; /* SYNC mit presenter-video Basis-Abstand */
    right: 20px;
    width: 240px !important;
    height: 135px !important;
    z-index: var(--vcm-z-video-pip);
    margin: 0 !important;
}

/* Fullscreen: Mehr Abstand auch für Presentation Mode PiP */
.video-call-container.fullscreen.presentation-mode .attendee-video-item {
    bottom: 120px; /* SYNC mit Fullscreen presenter-video */
}

.video-call-container.presentation-mode .attendee-video-item .attendee-video {
    position: static;
    width: 100% !important;
    height: 100% !important;
    min-height: 0;
    border: 2px solid #fff;
    box-shadow: var(--vcm-shadow-md);
    background: #000;
}

.video-call-container.presentation-mode .attendee-video-item .attendee-video .video-element video {
    object-fit: contain !important;
}

/* Photo mode: Same as default attendee-large mode */
.video-call-container.photo-mode .attendee-video {
    /* Attendee video is already large by default */
}

/* Controls Container - Transparent Overlay at bottom */
.controls-container {
    position: absolute; /* KRITISCH: Overlay über Video */
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100; /* HOCH - Controls müssen über Videos sein */
    padding: var(--vcm-spacing-lg) var(--vcm-spacing-xl);
    background: transparent; /* KOMPLETT TRANSPARENT - nur Container haben Hintergrund */
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-top: none;
    box-shadow: none;
    pointer-events: none; /* Durchklickbar wo keine Buttons sind */
}

/* Pointer-Events für Kinder erlauben */
.controls-container * {
    pointer-events: auto;
}

.video-call-container.embedded .controls-container {
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    background: transparent; /* Auch embedded transparent */
}

.video-call-container.fullscreen .controls-container {
    padding-bottom: calc(var(--vcm-spacing-lg) + env(safe-area-inset-bottom, 0));
    padding-left: calc(var(--vcm-spacing-xl) + env(safe-area-inset-left, 0));
    padding-right: calc(var(--vcm-spacing-xl) + env(safe-area-inset-right, 0));
}

.controls-wrapper {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-lg);
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.controls-section {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-md);
}

/* Standard Controls - linksbündig */
.controls-standard {
    flex-shrink: 0;
    padding: var(--vcm-spacing-xs) var(--vcm-spacing-md);
    background: rgba(0, 0, 0, 0.5); /* Halbtransparentes Schwarz */
    border-radius: var(--vcm-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Presenter Controls - zentriert */
.controls-presenter {
    flex-shrink: 0;
    padding: var(--vcm-spacing-xs) var(--vcm-spacing-md);
    background: rgba(0, 181, 226, 0.35); /* Halbtransparentes Cyan */
    border-radius: var(--vcm-radius-lg);
    border: 1px solid rgba(0, 181, 226, 0.45);
    box-shadow: 0 4px 16px rgba(0, 181, 226, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Vertical Divider within control sections */
.controls-divider-vertical {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, transparent 0%, rgba(33, 103, 174, 0.25) 50%, transparent 100%);
    margin: 0 var(--vcm-spacing-xs);
}

.controls-spacer {
    flex: 1;
}

.controls-hangup {
    flex-shrink: 0;
    /* Gleiche visuelle Balance wie andere Sections */
    display: flex;
    align-items: center;
}

/* Participant Chip */
.participant-chip {
    font-weight: 600 !important;
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md) !important;
    border-radius: var(--vcm-radius-md) !important;
    box-shadow: 0 2px 6px rgba(0, 181, 226, 0.2) !important;
    transition: all var(--vcm-transition-fast) var(--vcm-ease) !important;
}

.participant-chip:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 181, 226, 0.3) !important;
}

.control-btn {
    transition: all var(--vcm-transition-fast) var(--vcm-ease) !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1) !important;
    border-radius: var(--vcm-radius-md) !important;
}

.control-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 103, 174, 0.2) !important;
}

.control-btn:active:not(:disabled) {
    transform: translateY(0);
}

/* Disabled Controls - Rote Icons & Error Style */
.control-btn:disabled,
.control-btn.Mui-disabled {
    opacity: 0.7 !important;
    background: rgba(220, 53, 69, 0.15) !important; /* Leicht roter Hintergrund */
    border-color: rgba(220, 53, 69, 0.3) !important;
}

/* Icon Farbe auf Rot setzen */
.control-btn:disabled .mud-icon-root,
.control-btn.Mui-disabled .mud-icon-root,
.control-btn:disabled {
    color: #dc3545 !important; /* Rot für deaktivierte Buttons */
    fill: #dc3545 !important; /* Für SVG Icons */
}

/* Control button hover effects - use native MudBlazor colors, just add hover shadow */
.control-btn.mud-button-filled:hover:not(:disabled) {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
}

.photo-btn {
    position: relative;
    animation: pulse-success 3s infinite;
}

@keyframes pulse-success {
    0%, 100% {
        box-shadow: 0 2px 6px rgba(69, 137, 11, 0.2);
    }
    50% {
        box-shadow: 0 2px 6px rgba(69, 137, 11, 0.2), 0 0 0 8px rgba(69, 137, 11, 0.15), 0 0 0 16px rgba(69, 137, 11, 0);
    }
}

.hangup-btn {
    min-width: 64px !important;
    height: 64px !important;

    border-radius: var(--vcm-radius-lg) !important;
}

.hangup-btn:hover:not(:disabled) {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 6px 18px rgba(220, 53, 69, 0.35) !important;

}

.hangup-btn:active:not(:disabled) {
    transform: translateY(0) scale(1.01);
}

/* Capture Progress Indicator */
.capture-progress-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.98);
    padding: var(--vcm-spacing-xxxl) var(--vcm-spacing-xxxl);
    border-radius: var(--vcm-radius-lg);
    z-index: var(--vcm-z-controls);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--vcm-shadow-xl);
    min-width: 280px;
}

/* Capture Flash */
.capture-flash {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    z-index: var(--vcm-z-flash);
    animation: vcmFlash 0.4s ease-out;
    pointer-events: none;
}

/* ============================================
   END OF CALL VIEW
   Takes only the space it needs
   ============================================ */

.call-ended-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--vcm-spacing-md);
    padding: var(--vcm-spacing-lg) var(--vcm-spacing-md);
    height: auto;
    min-height: 100%;
    max-width: 100%;
    margin: 0 auto;
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
}

.call-ended-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--vcm-spacing-lg) var(--vcm-spacing-md);
    min-width: 320px;
    border-radius: var(--vcm-radius-lg);
    background: linear-gradient(135deg, #fafafa 0%, #ffffff 100%);
    box-shadow: var(--vcm-shadow-md);
    animation: vcmFadeIn var(--vcm-transition-normal) var(--vcm-ease-out);
}

/* ============================================
   Photo Preview Modal (Shared Component)
   ============================================ */

.vcm-photo-preview-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: var(--vcm-z-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: vcmFadeIn var(--vcm-transition-fast) ease-out;
}

.vcm-photo-preview-modal {
    background: var(--vcm-surface);
    border-radius: var(--vcm-radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--vcm-shadow-xl);
    animation: vcmSlideUp var(--vcm-transition-normal) ease-out;
}

.vcm-photo-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--vcm-spacing-xl) var(--vcm-spacing-xl);
    border-bottom: 1px solid var(--vcm-border);
    background: var(--mud-palette-primary);
}

.vcm-photo-preview-header .mud-typography {
    color: var(--mud-palette-primary-text);
    margin: 0;
    display: flex;
    align-items: center;
    font-weight: 600;
}

.vcm-photo-preview-header .mud-icon-button {
    color: var(--mud-palette-primary-text);
}

.vcm-photo-preview-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
    padding: var(--vcm-spacing-xl);
    overflow: auto;
    min-height: 400px;
    max-height: calc(90vh - 160px);
}

.vcm-photo-preview-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    box-shadow: var(--vcm-shadow-md);
}

.vcm-photo-preview-actions {
    display: flex;
    gap: var(--vcm-spacing-md);
    justify-content: flex-end;
    padding: var(--vcm-spacing-lg) var(--vcm-spacing-xl);
    border-top: 1px solid var(--vcm-border);
}

/* ============================================
   Animations
   ============================================ */

@keyframes vcmFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes vcmSlideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes vcmSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes vcmFlash {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0.9;
    }
    100% {
        opacity: 0;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

.vcm-smooth-scroll {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* Custom scrollbar */
.vcm-scrollbar::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.vcm-scrollbar::-webkit-scrollbar-track {
    background: var(--vcm-surface-hover);
    border-radius: 4px;
}

.vcm-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

.vcm-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.5);
}

/* ============================================
   MudBlazor Popover/Tooltip/Menu z-index Fix

   Problem: MudBlazor rendert Popovers am Ende des <body> via Portal
   Sie sind NICHT Siblings des Fullscreen-Containers

   MudBlazor default z-index hierarchy:
   - Drawer: 1200
   - Dialog: 1300
   - Popover: 1400
   - Tooltip: 1500

   Lösung: Globaler Override für alle MudBlazor Popovers
   ============================================ */

/* KRITISCH: Direct override aller MudBlazor Popover z-index Werte */
.mud-popover {
    z-index: 1500 !important; /* Muss über Fullscreen (1300) sein */
}

.mud-popover-provider {
    z-index: 1500 !important;
}

.mud-popover-cascading-value {
    z-index: 1500 !important;
}

/* Tooltip noch höher */
.mud-tooltip {
    z-index: 1600 !important;
}

.mud-tooltip-root {
    z-index: 1600 !important;
}

/* Menu (verwendet Popover) */
.mud-menu-popover {
    z-index: 1500 !important;
}

/* Overlay für Popovers */
.mud-overlay-popover {
    z-index: 1499 !important;
}

/* Photo Preview Modal sollte über allem sein */
.vcm-photo-preview-overlay {
    z-index: var(--vcm-z-overlay) !important; /* 9999 */
}

/* ============================================
   Custom Popover/Dropdown Menu
   Simple, fullscreen-compatible menu system
   ============================================ */

.custom-menu-container {
    position: relative;
    z-index: 200; /* Muss höher als controls-container sein, aber im gleichen Context */
}

.custom-popover {
    position: absolute;
    bottom: 100%;
    left: 0; /* Default: align to left edge of button */
    margin-bottom: 12px;
    min-width: 280px;
    max-width: min(350px, calc(100vw - 32px)); /* Never wider than viewport minus padding */
    max-height: calc(100vh - 200px); /* Don't exceed viewport height */
    overflow-y: auto;
    background: var(--mud-palette-surface);
    border-radius: var(--vcm-radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.24);
    z-index: 200; /* Über allen Video-Elementen */
    animation: popoverSlideUp 0.2s var(--vcm-ease-out);
}

/* Popovers in der rechten Sektion (Presenter Controls) - am rechten Rand ausrichten */
.controls-presenter .custom-popover {
    left: auto;
    right: 0;
}

@keyframes popoverSlideUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.custom-popover-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    font-weight: 600;
    font-size: 0.95rem;
}

.custom-popover-header .mud-icon-button {
    color: var(--mud-palette-primary-text);
}

.custom-popover-section {
    padding: 8px 0;
}

.custom-popover-section-title {
    padding: 8px 16px 4px 16px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--vcm-primary);
    letter-spacing: 0.5px;
}

.custom-popover-divider {
    height: 1px;
    background: var(--vcm-border);
    margin: 8px 16px;
}

.custom-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    cursor: pointer;
    transition: background var(--vcm-transition-fast) var(--vcm-ease);
    font-size: 0.9rem;
}

.custom-menu-item:hover:not(.disabled) {
    background: rgba(33, 103, 174, 0.08);
}

.custom-menu-item.active {
    background: rgba(33, 103, 174, 0.12);
    font-weight: 500;
}

.custom-menu-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.custom-menu-item .mud-icon-root {
    flex-shrink: 0;
    width: 20px;
}

.custom-menu-item span {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Torch Indicator Icon - unauffällig klein */
.custom-menu-item .torch-indicator {
    flex-shrink: 0;
    width: 14px !important;
    height: 14px !important;
    opacity: 0.7;
    margin-left: auto;
    transition: opacity var(--vcm-transition-fast) var(--vcm-ease);
}

.custom-menu-item:hover .torch-indicator {
    opacity: 1;
}

/* Mobile anpassungen */
@media (max-width: 767px) {
    .custom-popover {
        min-width: 240px;
        max-width: calc(100vw - 24px);
        /* Zentrieren auf Mobile für bessere Sichtbarkeit */
        left: 50%;
        right: auto;
        transform: translateX(-50%);
    }

    .controls-presenter .custom-popover {
        /* Auch Presenter-Controls zentrieren auf Mobile */
        left: 50%;
        right: auto;
        transform: translateX(-50%);
    }

    .custom-menu-item {
        padding: 12px 16px;
        min-height: 48px;
    }

    @keyframes popoverSlideUp {
        from {
            opacity: 0;
            transform: translateX(-50%) translateY(8px);
        }
        to {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }
    }
}

/* ============================================
   Enhanced Gallery Styles (EndOfCall View & InCall Sidebar)
   ============================================ */

/* Photo Gallery Sidebar - Floating Overlay Style during Call */
.photo-gallery-sidebar {
    position: absolute;
    top: var(--vcm-spacing-md);
    right: var(--vcm-spacing-md);
    bottom: calc(80px + var(--vcm-spacing-md)); /* Above controls */
    display: flex;
    flex-direction: column;
    transition: width var(--vcm-transition-normal) var(--vcm-ease), 
                min-width var(--vcm-transition-normal) var(--vcm-ease),
                opacity var(--vcm-transition-fast) var(--vcm-ease),
                transform var(--vcm-transition-normal) var(--vcm-ease);
    width: 280px;
    min-width: 280px;
    flex-shrink: 0;
    overflow: hidden;
    z-index: 30;
    pointer-events: auto;
    border-radius: var(--vcm-radius-lg);
}

/* Expanded State - Modern glass-morphism style */
.photo-gallery-sidebar.expanded {
    opacity: 1;
    transform: translateX(0);
    background: rgba(var(--mud-palette-surface-rgb), 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--mud-palette-lines-default);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25), 
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Collapsed State - Minimized floating button */
.photo-gallery-sidebar.collapsed {
    width: auto;
    min-width: auto;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    border: none;
    top: auto;
    bottom: calc(80px + var(--vcm-spacing-lg));
    right: var(--vcm-spacing-lg);
    height: auto;
}

/* Gallery Toggle Button - Modern floating action button */
.gallery-toggle-btn {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-sm);
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    border-radius: var(--vcm-radius-md);
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: all var(--vcm-transition-fast) var(--vcm-ease);
    user-select: none;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-weight: 500;
    font-size: 0.875rem;
}

.gallery-toggle-btn:hover {
    background: var(--mud-palette-primary-darken);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.gallery-toggle-btn:active {
    transform: translateY(0) scale(0.98);
}

.gallery-toggle-text {
    font-weight: 700;
    background: rgba(255, 255, 255, 0.2);
    padding: 2px 8px;
    border-radius: var(--vcm-radius-sm);
    min-width: 24px;
    text-align: center;
}

/* Expanded state - toggle button as header */
.photo-gallery-sidebar.expanded .gallery-toggle-btn {
    width: 100%;
    justify-content: space-between;
    border-radius: var(--vcm-radius-lg) var(--vcm-radius-lg) 0 0;
    padding: var(--vcm-spacing-md) var(--vcm-spacing-lg);
    background: var(--mud-palette-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.photo-gallery-sidebar.expanded .gallery-toggle-btn:hover {
    transform: none;
    box-shadow: none;
}

/* Collapsed state toggle button - standalone fab */
.photo-gallery-sidebar.collapsed .gallery-toggle-btn {
    flex-direction: row;
    padding: var(--vcm-spacing-md);
}

/* Hide photo gallery header when in sidebar - we use toggle as header */
.photo-gallery-sidebar.expanded .photo-gallery .gallery-header {
    display: none;
}

/* Gallery Content fills available space */
.photo-gallery-sidebar.expanded .photo-gallery {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: transparent !important;
    border-radius: 0;
    overflow: hidden;
}

.photo-gallery-sidebar.expanded .photo-gallery .gallery-grid {
    background: transparent;
    padding: var(--vcm-spacing-md);
    gap: var(--vcm-spacing-md);
}

.photo-gallery-sidebar.expanded .photo-gallery .gallery-card {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    border: none;
    border-radius: var(--vcm-radius-md) !important;
}

.photo-gallery-sidebar.expanded .photo-gallery .gallery-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.photo-gallery-sidebar.expanded .photo-gallery .gallery-card-footer {
    background: rgba(255, 255, 255, 1);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
}

.photo-gallery-sidebar.expanded .photo-gallery .gallery-image {
    max-height: 140px;
}

/* Empty state styling */
.photo-gallery-sidebar.expanded .photo-gallery .gallery-empty {
    color: rgba(255, 255, 255, 0.8);
    padding: var(--vcm-spacing-xl);
}

.photo-gallery-sidebar.expanded .photo-gallery .empty-icon {
    color: rgba(255, 255, 255, 0.4);
    font-size: 36px !important;
}

.photo-gallery-sidebar.expanded .photo-gallery .empty-text {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
}

.photo-gallery-sidebar.expanded .photo-gallery .empty-hint {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
}

/* Custom scrollbar for sidebar gallery */
.photo-gallery-sidebar .gallery-grid::-webkit-scrollbar {
    width: 6px;
}

.photo-gallery-sidebar .gallery-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.photo-gallery-sidebar .gallery-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.photo-gallery-sidebar .gallery-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Fullscreen mode adjustments */
.video-call-container.fullscreen .photo-gallery-sidebar {
    top: var(--vcm-spacing-lg);
    right: var(--vcm-spacing-lg);
    bottom: calc(90px + var(--vcm-spacing-lg));
}

.video-call-container.fullscreen .photo-gallery-sidebar.collapsed {
    bottom: calc(90px + var(--vcm-spacing-xl));
    right: var(--vcm-spacing-xl);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .photo-gallery-sidebar {
        width: 100%;
        min-width: 100%;
        left: 0;
        right: 0;
        top: auto;
        bottom: 80px;
        max-height: 50vh;
        border-radius: var(--vcm-radius-lg) var(--vcm-radius-lg) 0 0;
    }

    .photo-gallery-sidebar.collapsed {
        left: auto;
        right: var(--vcm-spacing-md);
        width: auto;
        min-width: auto;
        bottom: calc(80px + var(--vcm-spacing-md));
    }

    .photo-gallery-sidebar.expanded .gallery-toggle-btn {
        border-radius: var(--vcm-radius-lg) var(--vcm-radius-lg) 0 0;
    }
}

.vcm-gallery-ended {
    width: 100%;
    margin-top: var(--vcm-spacing-sm);
    padding: var(--vcm-spacing-md);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: var(--vcm-radius-lg);
    box-shadow: var(--vcm-shadow-md);
    overflow: hidden;
    animation: vcmSlideIn var(--vcm-transition-normal) var(--vcm-ease-out);
}

.vcm-gallery-ended-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--vcm-spacing-sm);
    padding-bottom: var(--vcm-spacing-sm);
    border-bottom: 2px solid var(--vcm-border);
}

.vcm-gallery-ended-title {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-sm);
    color: var(--vcm-text-primary);
}

.vcm-gallery-ended-scroll {
    position: relative;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    padding: var(--vcm-spacing-xs) 0;
    margin: 0 calc(-1 * var(--vcm-spacing-sm));
}

.vcm-gallery-ended-scroll::-webkit-scrollbar {
    height: 10px;
}

.vcm-gallery-ended-scroll::-webkit-scrollbar-track {
    background: var(--vcm-surface-hover);
    border-radius: 5px;
    margin: 0 var(--vcm-spacing-lg);
}

.vcm-gallery-ended-scroll::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--vcm-primary) 0%, var(--vcm-secondary) 100%);
    border-radius: 5px;
}

.vcm-gallery-ended-scroll::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--vcm-secondary) 0%, var(--vcm-primary) 100%);
}

.vcm-gallery-ended-grid {
    display: flex;
    gap: var(--vcm-spacing-md);
    padding: 0 var(--vcm-spacing-sm);
    width: fit-content;
    min-width: 100%;
}

.vcm-gallery-card-ended {
    flex: 0 0 auto;
    width: 320px;
    transition: transform var(--vcm-transition-normal) var(--vcm-ease);
    position: relative;
    cursor: grab;
}

.vcm-gallery-card-ended:active {
    cursor: grabbing;
}

.vcm-gallery-card-ended:hover {
    transform: translateY(-8px);
}

/* Multi-Select Styles for Gallery Cards */
.vcm-gallery-card-ended.photo-selected,
.vcm-gallery-card-ended[data-selected="true"] {
    transform: translateY(-4px);
}

.vcm-gallery-card-ended.photo-selected .mud-card,
.vcm-gallery-card-ended[data-selected="true"] .mud-card {
    outline: 3px solid var(--vcm-primary);
    outline-offset: 2px;
    box-shadow: 0 0 12px rgba(33, 103, 174, 0.4);
}

.vcm-gallery-card-ended.photo-selected::before,
.vcm-gallery-card-ended[data-selected="true"]::before {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--vcm-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.vcm-gallery-scroll-indicator {
    display: flex;
    justify-content: center;
    gap: var(--vcm-spacing-xs);
    margin-top: var(--vcm-spacing-md);
}

.vcm-gallery-scroll-indicator .indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--vcm-border);
    transition: all var(--vcm-transition-fast) var(--vcm-ease);
}

.vcm-gallery-scroll-indicator .indicator-dot.active {
    background: var(--vcm-primary);
    width: 24px;
    border-radius: 4px;
}

/* ============================================
   RESPONSIVE DESIGN
   Mobile-First Approach
   ============================================ */

/* Mobile Portrait (< 768px) */
@media (max-width: 767px) {
    /* Join Room View */
    .vcm-join-room {
        padding: var(--vcm-spacing-md);
        align-items: flex-start;
    }

    .vcm-join-room.vcm-fullscreen {
        padding-top: var(--vcm-spacing-xxxl);
    }

    .vcm-join-loading {
        max-width: 100%;
        padding: var(--vcm-spacing-xl) var(--vcm-spacing-md);
    }

    .video-call-wrapper .loading-state,
    .video-call-wrapper .error-state {
        max-width: 100%;
        padding: var(--vcm-spacing-xl) var(--vcm-spacing-md);
    }

    .vcm-video-preview {
        padding-bottom: 56.25%; /* 16:9 on mobile */
    }

    .vcm-join-button-container {
        position: sticky;
        bottom: 0;
        background: white;
        padding: var(--vcm-spacing-lg);
        margin: 0 calc(-1 * var(--vcm-spacing-md));
        box-shadow: var(--vcm-shadow-md);
        z-index: var(--vcm-z-controls);
    }

    .vcm-join-button {
        height: 52px !important;
        font-size: 1rem !important;
    }

    /* Call View */
    .video-call-container.embedded {
        min-height: 400px;
    }

    .video-content-container {
        flex-direction: column;
        padding: var(--vcm-spacing-sm);
        gap: var(--vcm-spacing-sm);
    }

    .video-main-area {
        order: 1;
    }

    .attendee-video {
        min-height: 250px;
    }

    .presenter-video {
        width: 180px;
        height: 101px;
        right: 10px;
        border-width: 1px;
        /* bottom wird NICHT überschrieben - nutzt Basis (100px) oder Fullscreen (150px) */
    }

    .presenter-video:hover {
        transform: scale(1.02);
    }

    /* Presentation Mode: attendee-video wird PiP - SYNC mit presenter-video */
    .video-call-container.presentation-mode .attendee-video-item {
        width: 180px !important;
        height: 101px !important;
        right: 10px;
        /* bottom wird NICHT überschrieben - nutzt eigene Regel (100px/150px) */
    }

    .controls-container {
        padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    }

    .video-call-container.fullscreen .controls-container {
        padding-bottom: calc(var(--vcm-spacing-sm) + env(safe-area-inset-bottom, 0));
    }

    .controls-wrapper {
        gap: var(--vcm-spacing-xs);
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .controls-section {
        gap: var(--vcm-spacing-xs);
    }

    .controls-standard {
        padding: var(--vcm-spacing-xs) var(--vcm-spacing-sm);
        border-radius: var(--vcm-radius-lg);
        border-width: 1px;
    }

    .controls-presenter {
        order: 2;
        margin-top: var(--vcm-spacing-sm);
        width: 100%;
        justify-content: center;
        padding: var(--vcm-spacing-xs) var(--vcm-spacing-sm);
        border-radius: var(--vcm-radius-lg);
        border-width: 1px;
    }

    .controls-divider-vertical {
        display: none;
    }

    .controls-spacer {
        display: none;
    }

    .controls-hangup {
        order: 3;
        margin-top: var(--vcm-spacing-sm);
    }

    .participant-chip {
        font-size: 0.75rem !important;
        padding: var(--vcm-spacing-xs) var(--vcm-spacing-sm) !important;
    }

    /* Optimale Touch-Targets für Mobile (48x48px minimum) */
    .control-btn {
        width: 48px !important;
        height: 48px !important;
        min-width: 48px !important;
    }

    .hangup-btn {
        width: 56px !important;
        height: 56px !important;
        min-width: 56px !important;
    }

    /* Verbessere Touch-Interaktion für Menüs auf Mobile */
    .settings-menu-btn,
    .settings-menu-btn button {
        -webkit-tap-highlight-color: rgba(33, 103, 174, 0.3);
        touch-action: manipulation;
    }

    /* MudMenu Popover auf Mobile optimieren */
    .mud-popover {
        touch-action: manipulation;
    }

    .mud-menu-item {
        min-height: 48px !important;
        padding: var(--vcm-spacing-md) var(--vcm-spacing-lg) !important;
    }

    /* End Of Call View */
    .call-ended-wrapper {
        padding: var(--vcm-spacing-md) var(--vcm-spacing-sm);
    }

    .call-ended-container {
        padding: var(--vcm-spacing-md) var(--vcm-spacing-sm);
    }

    .vcm-gallery-ended {
        padding: var(--vcm-spacing-sm);
        margin-top: var(--vcm-spacing-sm);
    }

    .vcm-gallery-card-ended {
        width: 260px;
    }

    /* Photo Gallery Sidebar - Mobile auch bis zum Rand */
    .photo-gallery-sidebar {
        top: 0;
        right: 0;
        bottom: 0;
    }

    .photo-gallery-sidebar.collapsed {
        width: 48px;
        min-width: 48px;
        overflow: visible;
    }

    .photo-gallery-sidebar.collapsed .gallery-toggle-btn {
        left: auto;
        right: 0;
        padding: 12px 8px;
        min-height: 70px;
    }

    /* Expanded Gallery auf Mobile - schmaler */
    .photo-gallery-sidebar.expanded {
        width: 280px;
        min-width: 280px;
    }

    .photo-gallery-sidebar.expanded .photo-gallery {
        margin-left: 24px;
    }

    .gallery-toggle-text {
        font-size: 0.8rem;
        padding: 4px 8px;
    }
}

/* Tablet Portrait (768px - 960px) */
@media (min-width: 768px) and (max-width: 960px) {
    .vcm-join-content {
        max-width: 700px;
    }

    .video-content-container {
        flex-direction: column;
        padding: var(--vcm-spacing-md);
    }

    .presenter-video {
        width: 200px;
        height: 112px;
        right: 15px;
        /* bottom nutzt Basis (100px) */
    }

    /* Presentation Mode PiP: Gleicher Abstand */
    .video-call-container.presentation-mode .attendee-video-item {
        width: 200px !important;
        height: 112px !important;
        right: 15px;
        /* bottom nutzt eigene Regel (100px/150px) */
    }
}

/* Tablet Landscape / Desktop (> 960px) */
@media (min-width: 961px) {
    .vcm-join-content {
        max-width: 800px;
    }

    .video-content-container {
        flex-direction: row;
    }
}

/* ============================================
   Fullscreen API Support
   Native browser fullscreen styling
   ============================================ */

.video-call-container:fullscreen,
.video-call-container:-webkit-full-screen,
.video-call-container:-moz-full-screen,
.video-call-container:-ms-fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    background: #000 !important;
    display: flex !important;
    flex-direction: column !important;
}

.video-call-container:fullscreen .video-content-container,
.video-call-container:-webkit-full-screen .video-content-container,
.video-call-container:-moz-full-screen .video-content-container,
.video-call-container:-ms-fullscreen .video-content-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.video-call-container:fullscreen .controls-container,
.video-call-container:-webkit-full-screen .controls-container,
.video-call-container:-moz-full-screen .controls-container,
.video-call-container:-ms-fullscreen .controls-container {
    margin-top: auto;
}

/* ============================================
   Animations & Transitions
   ============================================ */

@keyframes vcmFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes vcmSlideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes vcmSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes vcmFlash {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0.9;
    }
    100% {
        opacity: 0;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

.vcm-smooth-scroll {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* Custom scrollbar */
.vcm-scrollbar::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.vcm-scrollbar::-webkit-scrollbar-track {
    background: var(--vcm-surface-hover);
    border-radius: 4px;
}

.vcm-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

.vcm-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.5);
}


/* ============================================
   Mobile & Landscape Optimizations für Controls Overlay
   ============================================ */

/* Mobile: Kompaktere Controls */
@media (max-width: 768px) {
    .controls-container {
        padding: var(--vcm-spacing-md) var(--vcm-spacing-md);
        background: transparent; /* Transparent auch auf Mobile */
    }

    .controls-standard,
    .controls-presenter {
        background: rgba(0, 0, 0, 0.6); /* Stärker auf Mobile für bessere Sichtbarkeit */
    }

    .controls-wrapper {
        gap: var(--vcm-spacing-sm);
    }

    .controls-section {
        gap: var(--vcm-spacing-sm);
    }

    .control-btn {
        width: 48px !important;
        height: 48px !important;
    }

    .hangup-btn {
        min-width: 56px !important;
        height: 56px !important;
    }

    /* Fullscreen nutzt bereits bottom: 150px (genug für Mobile Portrait) */
}

/* Landscape auf Mobile: Minimale Controls */
@media (max-width: 896px) and (orientation: landscape) {
    .controls-container {
        padding: var(--vcm-spacing-sm) var(--vcm-spacing-lg);
        background: transparent;
    }

    .controls-standard,
    .controls-presenter {
        background: rgba(0, 0, 0, 0.55);
    }

    .video-content-container {
        padding: var(--vcm-spacing-sm);
    }

    .control-btn {
        width: 44px !important;
        height: 44px !important;
    }

    .hangup-btn {
        min-width: 52px !important;
        height: 52px !important;
    }

    .controls-standard,
    .controls-presenter {
        padding: var(--vcm-spacing-xs) var(--vcm-spacing-sm);
    }

    .presenter-video {
        width: 200px;
        height: 112px;
    }

    /* Presentation Mode: attendee-video wird PiP - gleiche Größe */
    .video-call-container.presentation-mode .attendee-video-item {
        width: 200px !important;
        height: 112px !important;
    }

    /* Fullscreen Landscape: Etwas weniger Abstand wegen kleinerem PiP */
    .video-call-container.fullscreen .presenter-video {
        bottom: 110px; /* Reduziert für Landscape */
    }

    /* Fullscreen Landscape Presentation Mode: Gleicher Abstand für attendee PiP */
    .video-call-container.fullscreen.presentation-mode .attendee-video-item {
        bottom: 110px; /* SYNC mit presenter-video in Landscape */
    }
}

/* ============================================
   Chat Component
   ============================================ */

.vcm-chat-fab-container {
    position: absolute;
    bottom: 90px;
    left: var(--vcm-spacing-lg);
    z-index: 200;
}

.vcm-chat-fab {
    box-shadow: var(--vcm-shadow-lg) !important;
    width: 48px !important;
    height: 48px !important;
}

.vcm-chat-badge .mud-badge {
    font-size: 11px;
    min-width: 20px;
    height: 20px;
}

.vcm-chat-panel {
    position: absolute;
    bottom: 90px;
    left: var(--vcm-spacing-lg);
    width: 340px;
    max-height: 420px;
    background: var(--vcm-surface);
    border-radius: var(--vcm-radius-md);
    box-shadow: var(--vcm-shadow-xl);
    display: flex;
    flex-direction: column;
    z-index: 200;
    overflow: hidden;
    animation: vcmChatSlideUp var(--vcm-transition-normal) var(--vcm-ease);
}

@keyframes vcmChatSlideUp {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.vcm-chat-header {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-sm);
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    border-bottom: 1px solid var(--vcm-border);
    background: var(--vcm-surface-alt);
    flex-shrink: 0;
}

.vcm-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--vcm-spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--vcm-spacing-sm);
    min-height: 200px;
    max-height: 300px;
    scroll-behavior: smooth;
}

.vcm-chat-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 160px;
}

.vcm-chat-bubble {
    max-width: 80%;
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    border-radius: var(--vcm-radius-md);
    word-wrap: break-word;
    animation: vcmSlideIn var(--vcm-transition-fast) var(--vcm-ease);
}

.vcm-chat-bubble.own {
    align-self: flex-end;
    background: var(--vcm-primary);
    color: #fff;
    border-bottom-right-radius: var(--vcm-spacing-xs);
}

.vcm-chat-bubble.other {
    align-self: flex-start;
    background: #f0f0f0;
    color: var(--vcm-text-primary);
    border-bottom-left-radius: var(--vcm-spacing-xs);
}

.vcm-chat-sender {
    font-size: 11px;
    font-weight: 600;
    opacity: 0.7;
    margin-bottom: 2px;
}

.vcm-chat-text {
    font-size: 14px;
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
}

.vcm-chat-time {
    font-size: 10px;
    opacity: 0.6;
    margin-top: 2px;
    text-align: right;
}

.vcm-chat-input {
    display: flex;
    align-items: center;
    gap: var(--vcm-spacing-sm);
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    border-top: 1px solid var(--vcm-border);
    background: var(--vcm-surface-alt);
    flex-shrink: 0;
}

.vcm-chat-input-field {
    flex: 1;
    border: 1px solid var(--vcm-border);
    border-radius: var(--vcm-radius-lg);
    padding: var(--vcm-spacing-sm) var(--vcm-spacing-md);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    background: var(--vcm-surface);
    color: var(--vcm-text-primary);
    transition: border-color var(--vcm-transition-fast);
    resize: none;
    min-height: 36px;
    max-height: 100px;
    overflow-y: auto;
    line-height: 1.4;
}

.vcm-chat-input-field:focus {
    border-color: var(--vcm-primary);
}

.vcm-chat-input-field::placeholder {
    color: var(--vcm-text-disabled);
}

/* GIF/Image in chat bubble */
.vcm-chat-gif {
    max-width: 200px;
    max-height: 180px;
    border-radius: var(--vcm-radius-sm);
    display: block;
    margin: 2px 0;
}

/* Mobile: full-width chat panel with glassmorphism & keyboard handling */
@media (max-width: 480px) {
    .vcm-chat-panel {
        position: fixed; /* Fixed für Keyboard-Awareness */
        left: var(--vcm-spacing-sm);
        right: var(--vcm-spacing-sm);
        bottom: 80px;
        width: auto;
        max-width: calc(100vw - 16px); /* Nie breiter als Viewport */
        box-sizing: border-box;
        max-height: 50vh;
        max-height: 50dvh; /* Fallback-Kette: vh → dvh */
        /* Semi-transparenter Glassmorphism - Video dahinter sichtbar */
        background: rgba(255, 255, 255, 0.78);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        border: 1px solid rgba(255, 255, 255, 0.3);
        transition: bottom 0.3s var(--vcm-ease), max-height 0.3s var(--vcm-ease);
    }

    /* Keyboard offen: nur max-height via CSS, bottom wird per JS plattform-spezifisch gesetzt */
    .vcm-chat-panel.vcm-keyboard-open {
        max-height: calc(100vh - var(--vcm-keyboard-height, 300px) - 20px);
    }

    /* Fallback: Browser ohne Visual Viewport API (sehr selten) */
    .vcm-chat-panel:focus-within:not(.vcm-keyboard-open) {
        max-height: 50vh;
        max-height: 50dvh;
    }

    .vcm-chat-fab-container {
        bottom: 80px;
        left: var(--vcm-spacing-sm);
    }

    .vcm-chat-bubble {
        max-width: 85%;
    }

    /* Bubbles semi-transparent für Glassmorphism */
    .vcm-chat-bubble.other {
        background: rgba(240, 240, 240, 0.80);
    }

    /* Header & Input semi-transparent */
    .vcm-chat-header {
        background: rgba(250, 250, 250, 0.60);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .vcm-chat-input {
        background: rgba(250, 250, 250, 0.65);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .vcm-chat-input-field {
        background: rgba(255, 255, 255, 0.75);
    }

    .vcm-chat-gif {
        max-width: 160px;
        max-height: 140px;
    }

    .vcm-chat-messages {
        max-height: calc(50vh - 110px);
        max-height: calc(50dvh - 110px);
    }

    .vcm-chat-panel.vcm-keyboard-open .vcm-chat-messages {
        max-height: calc(100vh - var(--vcm-keyboard-height, 300px) - 130px);
    }
}

@media (max-width: 360px) {
    .vcm-chat-panel {
        left: var(--vcm-spacing-xs);
        right: var(--vcm-spacing-xs);
        max-width: calc(100vw - 8px);
        max-height: 45vh;
        max-height: 45dvh;
    }

    .vcm-chat-panel.vcm-keyboard-open {
        max-height: calc(100vh - var(--vcm-keyboard-height, 300px) - 20px);
    }

    .vcm-chat-panel:focus-within:not(.vcm-keyboard-open) {
        max-height: 45vh;
        max-height: 45dvh;
    }

    .vcm-chat-messages {
        max-height: calc(45vh - 110px);
        max-height: calc(45dvh - 110px);
    }

    .vcm-chat-panel.vcm-keyboard-open .vcm-chat-messages {
        max-height: calc(100vh - var(--vcm-keyboard-height, 300px) - 120px);
    }
}

/* Landscape mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .vcm-chat-panel {
        position: fixed;
        bottom: 70px;
        max-height: calc(100vh - 90px);
        max-height: calc(100dvh - 90px);
        width: 300px;
        max-width: calc(100vw - 16px);
        box-sizing: border-box;
        background: rgba(255, 255, 255, 0.78);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        border: 1px solid rgba(255, 255, 255, 0.3);
        transition: bottom 0.3s var(--vcm-ease), max-height 0.3s var(--vcm-ease);
    }

    .vcm-chat-panel.vcm-keyboard-open {
        max-height: calc(100vh - var(--vcm-keyboard-height, 200px) - 20px);
    }

    .vcm-chat-panel:focus-within:not(.vcm-keyboard-open) {
        max-height: calc(100vh - 20px);
        max-height: calc(100dvh - 20px);
    }

    .vcm-chat-fab-container {
        bottom: 70px;
        left: var(--vcm-spacing-sm);
    }

    .vcm-chat-header {
        background: rgba(250, 250, 250, 0.60);
    }

    .vcm-chat-input {
        background: rgba(250, 250, 250, 0.65);
    }

    .vcm-chat-messages {
        max-height: calc(100vh - 200px);
        max-height: calc(100dvh - 200px);
        min-height: 100px;
    }

    .vcm-chat-panel.vcm-keyboard-open .vcm-chat-messages {
        max-height: calc(100vh - var(--vcm-keyboard-height, 200px) - 130px);
    }
}