/* Modern CSS Design System for FromScribd.com */
:root {
    --bg-dark: #0f172a;
    --bg-darker: #0b0f19;
    --bg-card: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --accent: #06b6d4;
    --success: #10b981;
    --success-hover: #059669;
    --danger: #ef4444;
    --warning: #f59e0b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography & Links */
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--accent);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.small-container {
    max-width: 860px;
}
.text-center { text-align: center; }
.hidden { display: none !important; }

/* Header & Navigation */
.site-header {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}
.logo-icon {
    color: var(--primary);
    font-size: 1.8rem;
}
.logo-accent {
    color: var(--accent);
}

.main-nav {
    display: flex;
    gap: 24px;
}
.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-link:hover {
    color: var(--text-main);
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    padding: 40px;
}

/* Hero Section */
.hero-section {
    padding: 60px 0 80px;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.15), transparent 70%);
}
.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--accent);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.hero-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff 0%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto 40px;
}

/* Converter Form & Inputs */
.converter-card {
    max-width: 900px;
    margin: 0 auto;
}
.input-group {
    display: flex;
    gap: 12px;
    background: rgba(15, 23, 42, 0.6);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 8px 8px 16px;
    transition: var(--transition);
}
.input-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
}
.input-icon-wrapper {
    display: flex;
    align-items: center;
    color: var(--text-muted);
    font-size: 1.2rem;
}
.url-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 1.05rem;
    font-family: inherit;
}
.url-input::placeholder {
    color: #64748b;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    box-shadow: 0 4px 15px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}
.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
}
.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-muted);
}
.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}
.btn-xl {
    padding: 18px 40px;
    font-size: 1.25rem;
    border-radius: var(--radius-lg);
}

/* Error Banner */
.error-banner {
    margin-top: 16px;
    padding: 14px 20px;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Progress Section */
.progress-wrapper {
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}
.progress-header {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 0.95rem;
}
.status-message {
    color: var(--accent);
}
.status-percentage {
    color: var(--primary);
}
.progress-bar-bg {
    width: 100%;
    height: 10px;
    background: rgba(15, 23, 42, 0.8);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 10px;
    transition: width 0.4s ease;
    box-shadow: 0 0 12px var(--accent);
}
.queue-notice {
    margin-top: 14px;
    font-size: 0.88rem;
    color: var(--text-muted);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Result Card Preview */
.result-card {
    margin-top: 32px;
    padding: 24px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-md);
}
.result-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--success);
    font-weight: 700;
    margin-bottom: 20px;
    font-size: 0.95rem;
}
.result-content-grid {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 24px;
    align-items: center;
}
.thumbnail-wrapper {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    background: #ffffff;
    aspect-ratio: 3 / 4;
}
.pdf-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.thumb-overlay {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    color: #ffffff;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
}
.doc-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: #ffffff;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.doc-meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}
.meta-tag {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.meta-tag strong {
    color: var(--text-main);
}
.result-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* Sections & Cards */
.section-padding { padding: 80px 0; }
.bg-darker { background-color: var(--bg-darker); }
.section-title {
    margin-bottom: 50px;
}
.section-title h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.section-title p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    position: relative;
    text-align: center;
    transition: var(--transition);
}
.step-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}
.step-number {
    position: absolute;
    top: -16px;
    left: 24px;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.step-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 16px;
}
.step-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}
.step-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}
.feature-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: var(--transition);
}
.feature-card:hover {
    border-color: var(--accent);
}
.feature-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 16px;
}
.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.feature-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* FAQ Accordion */
.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    padding: 20px 24px;
    color: var(--text-main);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: inherit;
}
.faq-question:hover {
    color: var(--accent);
}
.faq-answer {
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 0.95rem;
    display: none;
}
.faq-item.active .faq-answer {
    display: block;
}
.faq-item.active .faq-icon {
    transform: rotate(180deg);
}
.faq-icon {
    transition: var(--transition);
}

/* Download Page Specifics */
.download-page-section {
    padding: 60px 0;
    flex: 1;
}
.download-card {
    max-width: 720px;
    margin: 0 auto;
}
.success-icon-badge {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: 16px;
}
.document-summary-box {
    display: flex;
    gap: 24px;
    margin: 32px 0;
    padding: 24px;
    background: rgba(15, 23, 42, 0.6);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}
.summary-thumb {
    width: 120px;
    height: 160px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background: #ffffff;
}
.summary-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.summary-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.summary-specs {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.95rem;
}
.file-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 14px;
}

/* Legal Pages */
.legal-card {
    padding: 40px;
}
.legal-nav-tabs {
    display: flex;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.tab-item {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-weight: 500;
    background: rgba(255, 255, 255, 0.04);
}
.tab-item:hover, .tab-item.active {
    background: var(--primary);
    color: #ffffff;
}
.legal-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}
.legal-content h3 {
    font-size: 1.3rem;
    margin: 24px 0 12px;
    color: var(--accent);
}
.legal-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
}
.alert-box {
    padding: 18px 24px;
    border-radius: var(--radius-sm);
    margin: 24px 0;
    font-size: 0.95rem;
}
.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fbbf24;
}

/* Footer */
.site-footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: auto;
}
.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 12px;
    max-width: 450px;
}
.footer-links h4 {
    margin-bottom: 16px;
    font-size: 1rem;
}
.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.footer-links a:hover {
    color: var(--accent);
}
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive Breakpoints */
@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .result-content-grid { grid-template-columns: 1fr; text-align: center; }
    .thumbnail-wrapper { width: 140px; margin: 0 auto; }
    .doc-meta-tags { justify-content: center; }
    .input-group { flex-direction: column; padding: 12px; }
    .btn-primary { width: 100%; }
    .footer-container { grid-template-columns: 1fr; }
    .document-summary-box { flex-direction: column; align-items: center; text-align: center; }
    .shortcut-example { flex-direction: column; gap: 6px; }
}

/* Shortcut Trick Box */
.shortcut-tip-box {
    margin-top: 30px;
    padding: 24px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px dashed rgba(99, 102, 241, 0.4);
    border-radius: var(--radius-md);
}
.shortcut-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.8rem;
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.shortcut-text {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 14px;
}
.shortcut-text code {
    background: rgba(0, 0, 0, 0.4);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 1rem;
}
.shortcut-example {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(15, 23, 42, 0.8);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.9rem;
    flex-wrap: wrap;
    justify-content: center;
}
.old-url { color: var(--text-muted); text-decoration: line-through; }
.old-url strong { color: var(--danger); }
.arrow-icon { color: var(--accent); font-size: 1.1rem; }
.new-url { color: var(--success); }
.new-url strong { color: var(--accent); }