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

:root {
   --background: hsl(222.2, 84%, 4.9%);
    --foreground: hsl(210, 40%, 98%);
    --white: #fff;
    --card: hsl(222.2, 84%, 4.9%);
    --card-foreground: hsl(210, 40%, 98%);
    --muted: hsl(217.2, 32.6%, 17.5%);
    --muted-foreground: hsl(215, 20.2%, 65.1%);
    --primary: #6610f2;
    --primary-foreground: hsl(222.2, 47.4%, 11.2%);
    --secondary: hsl(217.2, 32.6%, 17.5%);
    --secondary-foreground: hsl(210, 40%, 98%);
    --accent: hsl(217.2, 32.6%, 17.5%);
    --accent-foreground: hsl(210, 40%, 98%);
    --destructive: hsl(0, 62.8%, 30.6%);
    --destructive-foreground: hsl(210, 40%, 98%);
    --border: hsl(217.2, 32.6%, 17.5%);
    --input: hsl(217.2, 32.6%, 17.5%);
    --ring: hsl(212.7, 26.8%, 83.9%);
	 --background: hsl(0, 0%, 100%);
    --foreground: hsl(222.2, 84%, 4.9%);
    --card: hsl(0, 0%, 100%);
    --card-foreground: hsl(222.2, 84%, 4.9%);
    --muted: hsl(210, 40%, 96.1%);
    --muted-foreground: hsl(215.4, 16.3%, 46.9%);
    --primary-foreground: hsl(210, 40%, 98%);
    --secondary: hsl(210, 40%, 96.1%);
    --secondary-foreground: hsl(222.2, 47.4%, 11.2%);
    --accent: hsl(210, 40%, 96.1%);
    --accent-foreground: hsl(222.2, 47.4%, 11.2%);
    --destructive: hsl(0, 84.2%, 60.2%);
    --border: hsl(214.3, 31.8%, 91.4%);
    --input: hsl(214.3, 31.8%, 91.4%);
    --ring: hsl(222.2, 84%, 4.9%);
}

body {
    background-color: var(--background);
    color: var(--foreground);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    border-bottom: 1px solid var(--border);
    background: var(--background);
    backdrop-filter: blur(8px);
    padding: 1rem 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--primary);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon i {
    color: var(--white);

}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--foreground);
}

.logo-text p {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

/* Theme Toggle */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
    padding: 0.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.theme-toggle:hover {
    background: var(--accent);
}

/* Main Content */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 100px);
}

/* Tabs */
.tabs-container {
    margin-bottom: 2rem;
}

.tabs-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background: var(--muted);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.25rem;
    gap: 0.25rem;
}

.tab-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--muted-foreground);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 600;
    font-size: 1rem;
}

.tab-trigger:hover {
    color: var(--foreground);
}

.tab-trigger.active {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Cards */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    margin-bottom: 30px;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Input Container - Matching React Version */
.input-container {
    max-width: 48rem;
    margin: 0 auto;
    margin-bottom: 2rem;
}

.input-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

.url-input {
    width: 100%;
    padding: 1rem 3rem 1rem 3rem;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    background: var(--background);
    color: var(--foreground);
    transition: all 0.2s;
    outline: none;
}

.url-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.url-input::placeholder {
    color: var(--muted-foreground);
}

.input-icon-left {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted-foreground);
    pointer-events: none;
}

.paste-button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--secondary);
    border: none;
    color: var(--secondary-foreground);
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.paste-button:hover {
    background: var(--accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
}

.btn-outline:hover {
    background: var(--accent);
}

.btn-full {
    width: 100%;
}

/* New Video Button */
.new-video-btn {
    background: #6610f2;
    color: #fff;
    margin-left: 1rem;
}

.new-video-btn:hover {
    background: #4a0bb0;
    color: #fff;
}

/* Button Container */
.button-container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Download Header */
.download-header {
    text-align: center;
    margin-bottom: 2rem;
}

.download-header-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(59, 130, 246, 0.1);
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.download-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.download-header p {
    color: var(--muted-foreground);
    max-width: 24rem;
    margin: 0 auto;
}

#check-url-btn {
    color: var(--white);
}

/* Loading, Error States */
.loading-state,
.error-state {
    text-align: center;
    padding: 3rem 0;
}

.loading-icon,
.error-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.error-state {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 0.75rem;
    padding: 2rem;
}

.error-icon {
    background: rgba(239, 68, 68, 0.1);
}

.hidden {
    display: none;
}

/* Video Preview */
.video-info-card {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.video-thumbnail {
    flex: 0 0 200px;
}

.video-thumbnail img {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
}

.video-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.video-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
}

.video-author {
    color: rgba(59, 130, 246, 1);
    font-weight: 600;
}

.video-description {
    color: var(--muted-foreground);
    line-height: 1.6;
}

.video-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 0.75rem;
    background: var(--muted);
    border-radius: 0.5rem;
}

.stat-icon {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-weight: 600;
    color: var(--foreground);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

/* Download Options */
.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.download-option {
    text-align: center;
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    transition: all 0.2s;
}

.download-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.download-option-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.mp4-icon {
    background: rgba(239, 68, 68, 0.1);
    border: 2px solid rgba(239, 68, 68, 0.2);
}

.mp3-icon {
    background: rgba(59, 130, 246, 0.1);
    border: 2px solid rgba(59, 130, 246, 0.2);
}

.m4a-icon {
    background: rgba(34, 197, 94, 0.1);
    border: 2px solid rgba(34, 197, 94, 0.2);
}

.download-option h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.quality-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.mp4-badge {
    background: rgba(239, 68, 68, 1);
    color: white;
}

.mp3-badge {
    background: rgba(59, 130, 246, 1);
    color: white;
}

.m4a-badge {
    background: rgba(34, 197, 94, 1);
    color: white;
}

.download-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.mp4-btn {
    background: rgba(239, 68, 68, 1);
    color: white;
}

.mp4-btn:hover {
    background: rgba(220, 38, 38, 1);
}

.mp3-btn {
    background: rgba(59, 130, 246, 1);
    color: white;
}

.mp3-btn:hover {
    background: rgba(37, 99, 235, 1);
}

.m4a-btn {
    background: rgba(34, 197, 94, 1);
    color: white;
}

.m4a-btn:hover {
    background: rgba(22, 163, 74, 1);
}

/* Progress */
.progress-container {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.progress-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.progress-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.progress-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-bar {
    width: 100%;
    height: 0.5rem;
    background: var(--secondary);
    border-radius: 0.25rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    transition: transform 0.3s ease;
    transform: translateX(-100%);
}

/* History */
.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.history-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    transition: all 0.2s;
}

.history-item:hover {
    border-color: var(--primary);
}

.history-thumbnail {
    flex: 0 0 80px;
}

.history-thumbnail img {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    border-radius: 0.5rem;
}

.history-details {
    flex: 1;
}

/* FAQ */
.faq-item {
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
}

.faq-trigger {
    width: 100%;
    padding: 1rem;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--foreground);
}

.faq-content {
    padding: 0 1rem 1rem;
    color: var(--muted-foreground);
    border-top: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 768px) {
    .video-info-card {
        flex-direction: column;
    }

    .video-thumbnail {
        flex: none;
    }

    .video-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .download-options {
        grid-template-columns: 1fr;
    }

    .tab-trigger span {
        display: none;
    }

    .history-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .button-container {
        flex-direction: column;
        align-items: stretch;
    }

    .new-video-btn {
        margin-left: 0;
    }
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    animation: slideIn 0.3s ease-out;
}

.toast-success {
    background: rgba(34, 197, 94, 1);
    color: white;
}

.toast-error {
    background: rgba(239, 68, 68, 1);
    color: white;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.rotate-180 {
    transform: rotate(180deg);
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}