/* Custom Properties - Light Mode Glassmorphism */
:root {
    --bg-base: #F8FAFC;
    --primary: #3B82F6;
    --primary-glow: rgba(59, 130, 246, 0.3);
    --secondary: #60A5FA;
    --surface-glass: rgba(255, 255, 255, 0.75);
    --surface-glass-border: rgba(255, 255, 255, 0.6);
    --surface-glass-hover: rgba(255, 255, 255, 0.9);
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --font-heading: "Outfit", -apple-system, sans-serif;
    --font-body: "Work Sans", -apple-system, sans-serif;
    
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-full: 9999px;
    
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
    --shadow-strong: 0 20px 40px -15px rgba(59, 130, 246, 0.2);
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: var(--font-body);
    background: var(--bg-base);
    color: var(--text-primary);
    overflow: hidden; /* Prevent scrolling, UI is absolute */
}

h1, h2, h3, h4, .logo {
    font-family: var(--font-heading);
}

/* Animated Ambient Background */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    background: radial-gradient(circle at top left, #F8FAFC, #EFF6FF);
}

/* Overlay System */
#desktop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10;
    display: flex;
    flex-direction: column;
    pointer-events: none;
}

#desktop > * {
    pointer-events: auto;
}

/* Glassmorphism Utilities */
.glass-panel, .glass-card, .glass-sidebar, .glass-element {
    background: var(--surface-glass);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--surface-glass-border);
    box-shadow: var(--shadow-soft);
}

/* Header */
#top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    margin: 0 16px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-icon-svg {
    color: var(--primary);
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 8px;
    background: rgba(255,255,255,0.5);
    padding: 6px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255,255,255,0.8);
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.02);
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
}

.nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.4);
}

.nav-btn.active {
    background: #FFFFFF;
    color: var(--primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

/* Connection Module */
.connection-module {
    display: flex;
    align-items: center;
    gap: 24px;
}

#connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #EF4444; /* Red */
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
}

.status-connected .pulse-dot {
    background: #10B981; /* Green */
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.controls {
    display: flex;
    gap: 12px;
}

.glass-input, .glass-btn {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.glass-input:focus {
    background: #FFFFFF;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.glass-btn {
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.glass-btn:hover {
    background: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}
.glass-btn.primary {
    background: var(--primary);
    color: #FFFFFF;
    border: none;
}
.glass-btn.primary:hover {
    background: #2563EB;
    box-shadow: var(--shadow-strong);
}
.glass-btn.secondary {
    background: #FFFFFF;
    color: var(--primary);
}
.glass-btn.big {
    padding: 16px 32px;
    font-size: 1.1rem;
    border-radius: var(--radius-full);
}

/* Main Content Area */
#main-content {
    flex: 1;
    position: relative;
    padding: 24px 32px 32px 32px;
}

.glass-panel {
    position: absolute;
    top: 24px;
    left: 32px;
    right: 32px;
    bottom: 32px;
    border-radius: var(--radius-lg);
    opacity: 0;
    visibility: hidden;
    transform: scale(0.98) translateY(10px);
    transition: var(--transition);
    overflow: hidden;
}

.glass-panel.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
}

/* About Layout */
.about-layout {
    display: flex;
    height: 100%;
    align-items: center;
    padding: 0 64px;
    gap: 64px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #0F172A, #3B82F6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 600px;
}

.action-buttons {
    display: flex;
    gap: 16px;
}

.hero-mockup {
    width: 320px;
    padding: 48px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-strong);
}

.mockup-icon {
    width: 64px;
    height: 64px;
    color: var(--primary);
    margin-bottom: 16px;
}

.hero-mockup p {
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: 24px;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0,0,0,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
}
.qr-placeholder img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
}

/* Cast Viewer Layout */
.panel-layout {
    display: flex;
    height: 100%;
}

#screen-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 32px;
    position: relative;
    background: rgba(255,255,255,0.4);
}

#stream-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-strong);
}

#placeholder {
    padding: 48px;
    text-align: center;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.8);
}
.placeholder-icon {
    width: 80px;
    height: 80px;
    color: var(--primary);
    margin-bottom: 16px;
    opacity: 0.8;
}
#placeholder h2 {
    margin-bottom: 8px;
}
#placeholder p {
    color: var(--text-secondary);
}

/* Remote Control Sidebar */
#remote-control {
    width: 320px;
    border-left: 1px solid var(--surface-glass-border);
    padding: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255,255,255,0.6);
}

#remote-control h3 {
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 48px;
}

.d-pad {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.d-row {
    display: flex;
    gap: 16px;
}
.d-btn {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255,255,255,0.8);
    background: rgba(255,255,255,0.8);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-soft);
}
.d-btn:hover {
    background: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}
.d-btn:active {
    transform: scale(0.95);
}
.d-btn.ok {
    background: var(--primary);
    color: #FFFFFF;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1rem;
    border: none;
}
.d-btn.ok:hover {
    background: #2563EB;
    box-shadow: var(--shadow-strong);
}

.d-actions {
    display: flex;
    gap: 16px;
    margin-top: 48px;
}
.action-btn {
    padding: 12px 24px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255,255,255,0.8);
    background: rgba(255,255,255,0.6);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-heading);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.action-btn:hover {
    background: #FFFFFF;
    box-shadow: var(--shadow-soft);
}

/* Share Panel Layout */
.share-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    height: 100%;
    padding: 32px;
}

.share-card {
    background: rgba(255,255,255,0.8);
    border-radius: var(--radius-lg);
    border: 1px solid var(--surface-glass-border);
    padding: 48px;
    display: flex;
    flex-direction: column;
}

/* Upload Zone */
.upload-zone {
    justify-content: center;
    align-items: center;
    text-align: center;
    transition: var(--transition);
    border: 2px dashed rgba(59, 130, 246, 0.4);
}
.upload-zone.dragover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--primary);
    transform: scale(1.02);
}
.upload-icon {
    width: 80px;
    height: 80px;
    color: var(--primary);
    margin-bottom: 24px;
}
.upload-zone h2 {
    margin-bottom: 8px;
}
.upload-zone p {
    color: var(--text-secondary);
}
.or-divider {
    margin: 24px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

/* Download List */
.download-list h2 {
    margin-bottom: 4px;
}
.download-list .subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 32px;
}

.file-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-right: 8px;
}

.file-list::-webkit-scrollbar {
    width: 6px;
}
.file-list::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 3px;
}

.empty-state {
    color: var(--text-secondary);
    text-align: center;
    padding: 64px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.empty-state i {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.file-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}
.file-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.file-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
}
.file-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.download-btn {
    background: #F8FAFC;
    border: 1px solid rgba(0,0,0,0.05);
    color: var(--primary);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}
.download-btn:hover {
    background: var(--primary);
    color: #FFFFFF;
    box-shadow: var(--shadow-strong);
    transform: translateY(-2px);
}

/* Focus states for accessibility */
.focusable:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Fullscreen Clock Overlay - clockfaceonline.com style */
#clock-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background-color: #D5D5B0; /* Warm beige/olive cream background */
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.clock-close-btn {
    position: absolute;
    top: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: transparent;
    border: none;
    color: #2F3E2F; /* Dark olive green */
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.2s ease, background 0.2s ease;
}

.clock-close-btn:hover {
    background: rgba(47, 62, 47, 0.1);
    transform: scale(1.1);
}

.clock-display {
    color: #2F3E2F; /* Dark olive green */
    font-family: "Georgia", "Times New Roman", serif; /* Elegant serif font */
    display: flex;
    align-items: baseline;
    gap: 16px;
}

#clock-time {
    font-size: clamp(6rem, 15vw, 15rem);
    font-weight: normal;
    letter-spacing: -2px;
    line-height: 1;
}

#clock-period {
    font-size: clamp(2rem, 5vw, 5rem);
    font-weight: normal;
    text-transform: lowercase;
}