/* ==========================================================================
   CADConvert - Modern CAD Blueprint Theme CSS
   Inspired by CloudConvert DXF to PDF Converter
   ========================================================================== */

:root {
    --bg-primary: #060913;
    --bg-surface: #0c1322;
    --bg-surface-elevated: #111c33;
    --bg-card: rgba(16, 26, 48, 0.7);
    --border-color: rgba(56, 189, 248, 0.15);
    --border-glow: rgba(0, 240, 255, 0.35);

    --cyan-primary: #00F0FF;
    --cyan-hover: #38BDF8;
    --cyan-dim: rgba(0, 240, 255, 0.12);

    --blue-primary: #2563EB;
    --blue-hover: #3B82F6;
    --blue-glow: rgba(37, 99, 235, 0.4);

    --success: #10B981;
    --success-dim: rgba(16, 185, 129, 0.15);
    --warning: #F59E0B;
    --warning-dim: rgba(245, 158, 11, 0.15);
    --danger: #EF4444;
    --danger-dim: rgba(239, 68, 68, 0.15);

    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', Consolas, monospace;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 24px rgba(0, 240, 255, 0.2);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* CAD Blueprint Grid Background */
.cad-bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center center;
}

.cad-radial-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(120px);
}

.cad-radial-glow.top-left {
    top: -200px;
    left: -200px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
}

.cad-radial-glow.bottom-right {
    bottom: -200px;
    right: -200px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
}

/* Utility Colors & Text */
.text-cyan { color: var(--cyan-primary); }
.text-blue { color: var(--blue-hover); }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger) !important; }
.highlight {
    background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--blue-hover) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Header & Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 17, 32, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--cyan-primary);
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--cyan-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Status Pill */
.server-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    background: rgba(16, 26, 48, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success);
}

.status-dot.pulsing {
    box-shadow: 0 0 8px var(--success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

.btn-md {
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan-primary) 0%, #0284c7 100%);
    color: #04111D;
    box-shadow: 0 4px 14px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #38BDF8 0%, #0369a1 100%);
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.5);
    transform: translateY(-1px);
}

.btn-primary.glow {
    animation: cta-pulse 3s infinite ease-in-out;
}

@keyframes cta-pulse {
    0%, 100% { box-shadow: 0 4px 14px rgba(0, 240, 255, 0.3); }
    50% { box-shadow: 0 6px 24px rgba(0, 240, 255, 0.6); }
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #192744;
    border-color: var(--cyan-primary);
    color: var(--cyan-primary);
}

.btn-glass {
    background: rgba(56, 189, 248, 0.08);
    color: var(--cyan-hover);
    border: 1px solid rgba(56, 189, 248, 0.25);
    backdrop-filter: blur(8px);
}

.btn-glass:hover {
    background: rgba(56, 189, 248, 0.16);
    border-color: var(--cyan-primary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #34D399 0%, #047857 100%);
    transform: translateY(-1px);
}

/* Main Container */
.main-content {
    flex: 1;
    max-width: 1240px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
    position: relative;
    z-index: 1;
}

/* Hero Section */
.hero-section {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 2.5rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    background: var(--cyan-dim);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 9999px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--cyan-primary);
    letter-spacing: 0.08em;
    font-family: var(--font-mono);
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
}

/* Converter Main Card (CloudConvert UI) */
.converter-wrapper {
    margin-bottom: 4rem;
}

.converter-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md), 0 0 40px rgba(0, 240, 255, 0.05);
    overflow: hidden;
    position: relative;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.converter-card.drag-over {
    border-color: var(--cyan-primary);
    box-shadow: 0 0 35px rgba(0, 240, 255, 0.25);
}

/* Dropzone Content */
.dropzone-content {
    padding: 4.5rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.cad-crosshair-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 1.5rem;
    color: var(--cyan-primary);
    transition: transform 0.3s ease;
}

.converter-card:hover .cad-crosshair-icon {
    transform: scale(1.08) rotate(4deg);
}

.drop-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.drop-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.drop-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.drop-limits {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.dot-separator {
    color: var(--cyan-primary);
    opacity: 0.5;
}

/* File Queue View */
.queue-container {
    padding: 1.5rem;
}

.queue-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.queue-header-title {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.queue-header-title h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.queue-size {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.queue-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.queue-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

/* Queue Item Row (CloudConvert file row) */
.queue-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: rgba(12, 19, 34, 0.85);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color 0.2s ease, transform 0.15s ease;
    gap: 1rem;
}

.queue-item:hover {
    border-color: rgba(56, 189, 248, 0.4);
}

.queue-item-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 240px;
    flex: 1;
}

.queue-item-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(0, 240, 255, 0.1);
    color: var(--cyan-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    border: 1px solid rgba(0, 240, 255, 0.25);
    flex-shrink: 0;
}

.queue-item-meta {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.queue-item-name {
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 320px;
}

.queue-item-size {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Format transition indicator */
.queue-item-transition {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.format-pill {
    font-weight: 700;
}

.format-pill.dxf { color: var(--cyan-primary); }
.format-pill.pdf { color: #38BDF8; }

.queue-item-status-col {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 140px;
}

.status-badge {
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    text-transform: uppercase;
}

.status-badge.ready {
    background: rgba(56, 189, 248, 0.1);
    color: var(--cyan-hover);
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.status-badge.converting {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.status-badge.finished {
    background: var(--success-dim);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.error {
    background: var(--danger-dim);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.queue-item-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Progress bar inside row */
.item-progress-bar {
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 0.4rem;
    overflow: hidden;
}

.item-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--cyan-primary), var(--blue-hover));
    transition: width 0.3s ease;
}

/* Queue Footer */
.queue-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 1rem;
}

.global-options-preview {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
}

.tag {
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.tag-cyan {
    background: var(--cyan-dim);
    color: var(--cyan-primary);
    border: 1px solid rgba(0, 240, 255, 0.25);
}

.tag-blue {
    background: rgba(37, 99, 235, 0.15);
    color: var(--blue-hover);
    border: 1px solid rgba(37, 99, 235, 0.25);
}

.global-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Format Comparison Grid (CloudConvert DXF vs PDF) */
.section {
    margin-bottom: 5rem;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3rem;
}

.section-tag {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--cyan-primary);
    font-family: var(--font-mono);
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
}

.format-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.format-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.format-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.dxf-badge {
    background: rgba(0, 240, 255, 0.12);
    color: var(--cyan-primary);
    border: 1px solid rgba(0, 240, 255, 0.3);
}

.pdf-badge {
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.format-title-group h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

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

.format-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.spec-list {
    list-style: none;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.spec-list li {
    display: flex;
    gap: 0.5rem;
}

.spec-list li strong {
    color: var(--text-primary);
    min-width: 90px;
}

.spec-list code {
    background: rgba(255, 255, 255, 0.06);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    color: var(--cyan-hover);
    font-size: 0.8rem;
}

.conversion-flow-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.flow-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--cyan-primary);
    box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
    color: var(--cyan-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.flow-text {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Features Showcase Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-item:hover {
    transform: translateY(-4px);
    border-color: rgba(56, 189, 248, 0.35);
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.cyan-glow { background: rgba(0, 240, 255, 0.1); color: var(--cyan-primary); }
.blue-glow { background: rgba(37, 99, 235, 0.15); color: var(--blue-hover); }
.emerald-glow { background: var(--success-dim); color: var(--success); }
.purple-glow { background: rgba(168, 85, 247, 0.15); color: #C084FC; }
.amber-glow { background: var(--warning-dim); color: var(--warning); }
.teal-glow { background: rgba(20, 184, 166, 0.15); color: #2DD4BF; }

.feature-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.5;
}

/* Steps Workflow */
.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.step-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
}

.step-num {
    font-size: 2.5rem;
    font-weight: 900;
    font-family: var(--font-mono);
    color: rgba(0, 240, 255, 0.2);
    line-height: 1;
    margin-bottom: 1rem;
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.step-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* API Integration Card */
.api-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.api-tabs {
    display: flex;
    background: rgba(6, 9, 19, 0.6);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 1rem 0;
    gap: 0.5rem;
}

.api-tab {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-mono);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.api-tab:hover {
    color: var(--text-primary);
}

.api-tab.active {
    color: var(--cyan-primary);
    border-bottom-color: var(--cyan-primary);
}

.api-code-container {
    position: relative;
    padding: 1.5rem;
    background: #060913;
}

.api-code-block {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    color: #E2E8F0;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre;
}

.btn-copy {
    position: absolute;
    top: 1rem;
    right: 1rem;
    border: 1px solid var(--border-color);
}

/* FAQ Accordion */
.faq-accordion {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.faq-item:hover {
    border-color: rgba(56, 189, 248, 0.4);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    list-style: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-chevron {
    transition: transform 0.2s ease;
    color: var(--cyan-primary);
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 8, 18, 0.85);
    backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-dialog {
    background: #0E172B;
    border: 1px solid rgba(0, 240, 255, 0.25);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 240, 255, 0.15);
    border-radius: var(--radius-lg);
    max-width: 540px;
    width: 100%;
    overflow: hidden;
    animation: modal-enter 0.25s ease-out;
}

.modal-dialog.modal-lg {
    max-width: 960px;
    width: 90vw;
    height: 85vh;
    display: flex;
    flex-direction: column;
}

@keyframes modal-enter {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-title-group h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
}

.modal-close:hover {
    color: var(--cyan-primary);
}

.modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: rgba(6, 9, 19, 0.5);
}

/* Forms */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input, .form-select {
    background: rgba(6, 9, 19, 0.8);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.85rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-input:focus, .form-select:focus {
    border-color: var(--cyan-primary);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.form-help {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Preview Modal Viewport */
.preview-body {
    flex: 1;
    overflow: auto;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #060913;
}

.preview-viewport {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: auto;
}

#preview-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.preview-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--cyan-primary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 240, 255, 0.2);
    border-top-color: var(--cyan-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.preview-footer {
    justify-content: space-between;
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

/* Footer */
.footer {
    background: #050811;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    padding: 3rem 1.5rem 1.5rem;
}

.footer-container {
    max-width: 1240px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    max-width: 320px;
    margin-top: 0.75rem;
}

.footer-status-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.85rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--success);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 1.5rem;
}

.footer-bottom-container {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 960px) {
    .features-grid, .steps-container {
        grid-template-columns: 1fr;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .conversion-flow-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
    }

    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 640px) {
    .footer-container {
        grid-template-columns: 1fr;
    }

    .queue-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .queue-item-info {
        width: 100%;
    }

    .queue-item-name {
        max-width: 220px;
    }

    .queue-item-actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .drop-buttons {
        flex-direction: column;
        width: 100%;
    }

    .drop-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Legal Content & Disclosures */
.legal-content {
    line-height: 1.7;
    color: var(--text-secondary);
    max-height: 60vh;
    overflow-y: auto;
    padding: 1.5rem;
}

.legal-content h4 {
    color: var(--text-primary);
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.legal-content h4:first-child {
    margin-top: 0;
}

.legal-content p {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.legal-link {
    color: var(--cyan-primary);
    text-decoration: underline;
}

.legal-link:hover {
    color: var(--cyan-hover);
}