@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-dark: #050a12;
    --bg-card: rgba(12, 47, 78, 0.45);
    --border-glass: rgba(27, 162, 198, 0.12);
    --border-glow: rgba(27, 162, 198, 0.35);
    
    --primary: #1ba2c6;
    --primary-hover: #158dae;
    --primary-glow: rgba(27, 162, 198, 0.4);
    
    --accent: #f18b21;
    --accent-hover: #d87612;
    
    --navy-brand: #0c2f4e;
    
    --success: #10b981;
    --danger: #ef4444;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.5;
}

/* Glassmorphism utility */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Animations */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 15px var(--primary-glow);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 30px var(--primary-glow), 0 0 15px var(--accent);
        transform: scale(1.05);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

/* Ken Burns Keyframes for TV */
@keyframes kenburns-zoom-in {
    0% {
        transform: scale(1) translate(0, 0);
    }
    100% {
        transform: scale(1.15) translate(-1.5%, -1%);
    }
}

@keyframes kenburns-zoom-out {
    0% {
        transform: scale(1.15) translate(1.5%, 1%);
    }
    100% {
        transform: scale(1) translate(0, 0);
    }
}

/* TV Player Layout */
#player-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #f3f4f6;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    overflow: hidden;
    border: none;
    padding: 0;
    box-shadow: none;
}

.tv-logo-box {
    position: absolute;
    top: 0;
    left: 0;
    padding: 0.8rem 1.8rem;
    border-bottom-right-radius: 24px;
    z-index: 1005; /* sits on top of frame */
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #ffffff; /* Solid light white background */
    box-shadow: 4px 4px 15px rgba(0, 0, 0, 0.15);
    border-bottom: 3px solid var(--primary); /* Solid brand color borders */
    border-right: 3px solid var(--primary);
}

.tv-logo-box img {
    height: 42px;
    width: auto;
    object-fit: contain;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

/* Ken Burns effect classes toggled dynamically */
.kenburns-active-1 {
    animation: kenburns-zoom-in 10s ease-in-out infinite alternate;
}

.kenburns-active-2 {
    animation: kenburns-zoom-out 10s ease-in-out infinite alternate;
}

/* Fullscreen Start Overlay */
#start-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(15,23,42,0.9) 0%, rgba(3,7,18,0.98) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: opacity 0.5s ease;
}

.start-btn {
    font-family: var(--font-sans);
    padding: 1.5rem 3.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    border-radius: 50px;
    cursor: pointer;
    animation: pulse-glow 2s infinite ease-in-out;
    transition: var(--transition-smooth);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.start-btn:hover {
    transform: scale(1.08);
}

.start-desc {
    margin-top: 1.5rem;
    color: var(--text-muted);
    font-size: 1.1rem;
    text-align: center;
}

/* QR Code Display on TV */
.tv-qr-box {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    z-index: 10;
    transition: var(--transition-smooth);
    border: 1px solid var(--border-glass);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(10px);
}

.tv-qr-box:hover {
    transform: scale(1.05);
    background: rgba(17, 24, 39, 0.95);
}

.tv-qr-box img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    background-color: #fff;
    padding: 4px;
}

.tv-qr-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* Guest Greeting Notification / Overlay on TV */
.guest-greeting-overlay {
    position: absolute;
    bottom: 3rem;
    left: 3rem;
    padding: 2rem 3rem;
    border-radius: 24px;
    max-width: 600px;
    z-index: 15;
    animation: fade-in 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    border-left: 6px solid var(--primary);
    box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}

.guest-greeting-title {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
}

.guest-greeting-name {
    font-size: 2.8rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.guest-greeting-message {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Admin Dashboard CSS */
.admin-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-glass);
}

.admin-logo {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.admin-logo span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-player {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-player:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.admin-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

@media (max-width: 968px) {
    .admin-grid {
        grid-template-columns: 1fr;
    }
}

.admin-card {
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.admin-card h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-glass);
    background: rgba(0, 0, 0, 0.2);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--border-glow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-danger {
    background-color: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    filter: brightness(0.9);
}

/* Upload Area UI */
.upload-dropzone {
    border: 2px dashed var(--border-glass);
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    background: rgba(255,255,255,0.01);
    position: relative;
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.05);
}

.upload-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.upload-text {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Thumbnails list */
.slides-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.slide-thumb {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    background: #000;
    transition: var(--transition-smooth);
    cursor: grab;
}

.slide-thumb:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.slide-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-thumb .delete-btn {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.9);
    border: none;
    color: white;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: 10;
}

.slide-thumb:hover .delete-btn {
    opacity: 1;
}

.slide-thumb .slide-badge {
    position: absolute;
    bottom: 0.25rem;
    left: 0.25rem;
    padding: 0.1rem 0.4rem;
    background: rgba(0,0,0,0.7);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
}

.slide-thumb .slide-guest-name {
    position: absolute;
    bottom: 0.25rem;
    right: 0.25rem;
    padding: 0.1rem 0.4rem;
    background: var(--primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    max-width: 70%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Switch UI */
.switch-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255,255,255,0.1);
    transition: .4s;
    border-radius: 34px;
    border: 1px solid var(--border-glass);
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Mobile Upload Page styling */
.mobile-upload-container {
    max-width: 500px;
    margin: 2rem auto;
    padding: 1.5rem;
}

.mobile-card {
    border-radius: 24px;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.mobile-logo {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mobile-logo span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mobile-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.mobile-upload-btn-wrap {
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.mobile-upload-btn-wrap input[type=file] {
    position: absolute;
    font-size: 100px;
    right: 0;
    top: 0;
    opacity: 0;
    cursor: pointer;
    height: 100%;
    width: 100%;
}

.preview-box {
    margin-top: 1.5rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    background: rgba(0,0,0,0.3);
    max-height: 250px;
    display: none;
    justify-content: center;
    align-items: center;
}

.preview-box img {
    max-width: 100%;
    max-height: 250px;
    object-fit: contain;
}

/* Progress bar for upload */
.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    margin-top: 1.5rem;
    display: none;
    overflow: hidden;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.2s ease;
}

/* QR Scanner Box */
.tv-qr-box svg {
    background: #fff;
    padding: 5px;
    border-radius: 8px;
}

/* Notification styling */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 10px;
    color: white;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    display: none;
    animation: fade-in 0.3s ease;
    z-index: 10000;
}

.toast.toast-success {
    background: var(--success);
}

.toast.toast-error {
    background: var(--danger);
}