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

:root {
    --bg-dark: #090d16;
    --bg-card: rgba(22, 28, 45, 0.6);
    --bg-card-border: rgba(255, 255, 255, 0.05);
    --bg-input: rgba(15, 23, 42, 0.6);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --accent-hover-gradient: linear-gradient(135deg, #4f46e5 0%, #9333ea 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --font-outfit: 'Outfit', sans-serif;
    --font-jakarta: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-lg: 16px;
    --border-radius-md: 12px;
    --border-radius-sm: 8px;
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 1px 1px 0 rgba(255, 255, 255, 0.05) inset;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-jakarta);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.08) 0px, transparent 50%);
}

/* Navigation Header */
header {
    background: rgba(9, 13, 22, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--bg-card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-outfit);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.025em;
    cursor: pointer;
}

.logo svg {
    stroke: url(#logo-grad);
    fill: none;
}

.github-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--bg-card-border);
    background: rgba(255, 255, 255, 0.02);
    transition: var(--transition-smooth);
}

.github-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Main Content Layout */
main {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Card Class Styling */
.card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-premium);
    overflow: hidden;
    transition: var(--transition-smooth);
}

/* Input Section */
.search-section {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.search-title-group h1 {
    font-family: var(--font-outfit);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.search-title-group p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.input-group {
    display: flex;
    gap: 1rem;
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--border-radius-md);
    padding: 0.5rem;
    transition: var(--transition-smooth);
}

.input-group:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-left: 0.75rem;
}

.input-icon {
    color: var(--text-muted);
}

.input-group input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-jakarta);
    font-size: 1rem;
}

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

.btn-fetch {
    background: var(--accent-gradient);
    color: var(--text-primary);
    border: none;
    font-family: var(--font-outfit);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.85rem 2rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px -3px rgba(99, 102, 241, 0.4);
}

.btn-fetch:hover {
    background: var(--accent-hover-gradient);
    box-shadow: 0 8px 20px -3px rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
}

.btn-fetch:active {
    transform: translateY(0);
}

.btn-fetch:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Language Selection Area */
.config-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--bg-card-border);
    animation: fadeIn 0.4s ease-out;
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.config-item label {
    font-family: var(--font-outfit);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.select-wrapper {
    position: relative;
}

.select-wrapper select {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: var(--font-jakarta);
    font-size: 0.95rem;
    appearance: none;
    outline: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.select-wrapper select:focus {
    border-color: var(--accent);
}

.select-wrapper::after {
    content: "▼";
    font-size: 0.75rem;
    color: var(--text-muted);
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

/* Workspace Panels (Dual Column Layout) */
.workspace-layout {
    display: grid;
    grid-template-columns: 1.1fr 1.3fr;
    gap: 2rem;
    min-height: 600px;
}

@media (max-width: 1024px) {
    .workspace-layout {
        grid-template-columns: 1fr;
    }
}

/* Left Panel: Video & Analytics */
.left-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: sticky;
    top: calc(75px + 2rem);
    align-self: flex-start;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    background: black;
    border: 1px solid var(--bg-card-border);
}

.video-container iframe,
.video-container .video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-placeholder {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    background: linear-gradient(135deg, #111827 0%, #1e293b 100%);
    gap: 1rem;
}

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

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    padding: 1.25rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-card .val {
    font-family: var(--font-outfit);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card .lbl {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Right Panel: Transcript Viewer */
.transcript-card {
    display: flex;
    flex-direction: column;
    height: 650px;
}

.transcript-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--bg-card-border);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.transcript-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

/* Search bar styling */
.search-bar {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--border-radius-sm);
    padding: 0.6rem 0.75rem;
    transition: var(--transition-smooth);
}

.search-bar:focus-within {
    border-color: var(--accent);
}

.search-bar input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.875rem;
    width: 100%;
}

.btn-icon-clear {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon-clear:hover {
    color: var(--text-primary);
}

/* Autoscroll toggle button */
.autoscroll-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    user-select: none;
    cursor: pointer;
}

.autoscroll-toggle input {
    display: none;
}

.toggle-switch {
    width: 36px;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    position: relative;
    transition: var(--transition-smooth);
}

.toggle-switch::after {
    content: "";
    width: 14px;
    height: 14px;
    background: var(--text-muted);
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: var(--transition-smooth);
}

.autoscroll-toggle input:checked + .toggle-switch {
    background: var(--success);
}

.autoscroll-toggle input:checked + .toggle-switch::after {
    transform: translateX(16px);
    background: white;
}

/* Export Panel */
.export-panel {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-export {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    border: 1px solid var(--bg-card-border);
    padding: 0.5rem 0.85rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-export:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-export.btn-copy {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Subtitles List Container */
.transcript-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.transcript-line {
    display: flex;
    gap: 1.5rem;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-smooth);
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.transcript-line:hover {
    background: rgba(255, 255, 255, 0.03);
}

.transcript-line.active {
    background: rgba(99, 102, 241, 0.12);
    border-left: 3px solid var(--accent);
    padding-left: calc(1rem - 3px);
}

.timestamp {
    font-family: var(--font-outfit);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--accent);
    min-width: 60px;
    text-align: right;
    user-select: none;
}

.line-text {
    flex: 1;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.transcript-line.active .line-text {
    color: var(--text-primary);
}

/* Highlighted search match text */
.highlight {
    background: rgba(245, 158, 11, 0.3);
    color: #fff;
    padding: 0.1rem 0.2rem;
    border-radius: 2px;
    font-weight: 500;
}

/* Empty State / Errors inside Viewer */
.viewer-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    gap: 1rem;
    text-align: center;
    padding: 2rem;
}

.viewer-placeholder svg {
    color: var(--text-muted);
    opacity: 0.5;
}

/* Status Notifications */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #1e293b;
    border: 1px solid var(--bg-card-border);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transform: translateY(150%);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

.notification.show {
    transform: translateY(0);
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--danger);
}

/* Footer Section */
footer {
    background: rgba(9, 13, 22, 0.6);
    border-top: 1px solid var(--bg-card-border);
    padding: 1.5rem 2rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: auto;
}

/* Fade-in Animation utility */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Hide utility */
.hidden {
    display: none !important;
}