/* ============================================
   A1 Firmware - User-Facing Stylesheet
   Colorful Premium Design
   ============================================ */

:root {
    --primary-purple: #6312f0;
    --primary-orange: #fc7a08;
    --primary-green: #90e91b;
    --bg-white: #ffffff;
    --bg-light: #f8f9fc;
    --bg-gradient: linear-gradient(135deg, #dacef1 0%, #f0dac1 50%, #f0fff5 100%);
    --text-dark: #1a1a2e;
    --text-muted: #6b7280;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(123, 44, 255, 0.15);
    --shadow-soft: 0 8px 32px rgba(123, 44, 255, 0.12);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 12px 40px rgba(123, 44, 255, 0.18);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 32px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-img {
    height: 38px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
    display: block;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-orange));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    -webkit-text-fill-color: white;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-menu a {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-muted);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-purple);
    background: rgba(123, 44, 255, 0.08);
}

.header-search {
    flex: 1;
    max-width: 320px;
    position: relative;
}

.header-search input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    border: 1px solid rgba(123, 44, 255, 0.15);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.header-search input:focus {
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 4px rgba(123, 44, 255, 0.1);
}

.header-search svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 16px;
    height: 16px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-purple), #a855f7);
    color: white;
    box-shadow: 0 4px 16px rgba(123, 44, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(123, 44, 255, 0.4);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid rgba(123, 44, 255, 0.2);
    color: var(--primary-purple);
}

.btn-outline:hover {
    background: rgba(123, 44, 255, 0.06);
    border-color: var(--primary-purple);
}

.btn-orange {
    background: linear-gradient(135deg, var(--primary-orange), #fb923c);
    color: white;
    box-shadow: 0 4px 16px rgba(245, 130, 32, 0.3);
}

.btn-orange:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(245, 130, 32, 0.4);
}

.btn-green {
    background: linear-gradient(135deg, var(--primary-green), #a3d95b);
    color: white;
    box-shadow: 0 4px 16px rgba(140, 198, 63, 0.3);
}

.btn-green:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(140, 198, 63, 0.4);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.82rem;
    border-radius: var(--radius-sm);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

/* Hero Section */
.hero-section {
    padding: 60px 24px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg-decoration {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(123, 44, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-bg-decoration-2 {
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 130, 32, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-orange), var(--primary-green));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 36px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Carousel */
.hero-carousel {
    max-width: 1200px;
    margin: 40px auto 0;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
}

.carousel-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.carousel-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
}

.carousel-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.carousel-subtitle {
    font-size: 0.95rem;
    margin-bottom: 16px;
    opacity: 0.9;
}

.carousel-btn {
    display: inline-block;
    padding: 10px 24px;
    background: var(--primary-orange);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
}

.carousel-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 130, 32, 0.4);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 16px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(123, 44, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background: var(--primary-purple);
    transform: scale(1.2);
}

.carousel-dot:hover {
    background: var(--primary-purple);
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-purple);
    font-size: 1.2rem;
    transition: var(--transition);
    z-index: 10;
}

.carousel-arrow:hover {
    background: white;
    box-shadow: 0 4px 16px rgba(123, 44, 255, 0.2);
}

.carousel-arrow.prev {
    left: 16px;
}

.carousel-arrow.next {
    right: 16px;
}

/* File Browser Section */
.browser-section {
    padding: 40px 24px 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.browser-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.browser-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-size: 0.95rem;
}

.browser-container {
    display: grid;
    grid-template-columns: 240px 1fr 280px;
    gap: 20px;
    min-height: 500px;
}

/* Left Sidebar - Selected Path */
.path-panel {
    background: white;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(123, 44, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-card);
}

.path-panel-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.path-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.path-item {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: white;
    border: 1px solid rgba(123, 44, 255, 0.08);
    font-size: 0.88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    animation: slideInLeft 0.3s ease;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.path-item:hover {
    border-color: var(--primary-purple);
    background: rgba(123, 44, 255, 0.04);
}

.path-item.active {
    background: linear-gradient(135deg, rgba(123, 44, 255, 0.08), rgba(123, 44, 255, 0.03));
    border-color: var(--primary-purple);
    color: var(--primary-purple);
}

.path-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.path-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 16px;
}

.path-connector::after {
    content: '';
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-purple), var(--primary-orange));
    border-radius: 2px;
}

/* Center Panel - Selection Area */
.selection-panel {
    background: white;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(123, 44, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.selection-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.selection-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    background: rgba(123, 44, 255, 0.06);
    color: var(--primary-purple);
    font-size: 0.85rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.back-btn:hover {
    background: rgba(123, 44, 255, 0.12);
}

.back-btn.hidden {
    opacity: 0;
    pointer-events: none;
}

/* File Type Cards - Large Premium */
.selection-grid.file-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 18px;
}

.selection-card.file-type-card {
    padding: 28px 20px;
    border-radius: var(--radius-lg);
    background: white;
    border: 2px solid rgba(123, 44, 255, 0.12);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    animation: slideInRight 0.35s ease;
    box-shadow: var(--shadow-card);
}

.selection-card.file-type-card:hover {
    border-color: var(--primary-purple);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.selection-card.file-type-card .card-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, rgba(123, 44, 255, 0.12), rgba(245, 130, 32, 0.12));
    color: var(--primary-purple);
}

.selection-card.file-type-card .card-icon svg {
    width: 32px;
    height: 32px;
}

.selection-card.file-type-card .card-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.selection-card.file-type-card .card-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Brand/Series Cards - Compact */
.selection-grid.brand-grid,
.selection-grid.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

.selection-card.brand-card,
.selection-card.series-card {
    padding: 16px 12px;
    border-radius: var(--radius-md);
    background: white;
    border: 2px solid rgba(123, 44, 255, 0.1);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    animation: slideInRight 0.35s ease;
    box-shadow: var(--shadow-card);
}

.selection-card.brand-card:hover,
.selection-card.series-card:hover {
    border-color: var(--primary-purple);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.selection-card.brand-card .card-icon,
.selection-card.series-card .card-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    background: linear-gradient(135deg, rgba(123, 44, 255, 0.08), rgba(245, 130, 32, 0.08));
    color: var(--primary-purple);
}

.selection-card.brand-card .card-icon svg,
.selection-card.series-card .card-icon svg {
    width: 20px;
    height: 20px;
}

.selection-card.brand-card .card-title,
.selection-card.series-card .card-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.selection-card.brand-card .card-desc,
.selection-card.series-card .card-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.3;
}

/* Final File Card - Large Detailed */
.selection-grid.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.selection-card.file-card {
    padding: 20px;
    border-radius: var(--radius-lg);
    background: white;
    border: 2px solid rgba(123, 44, 255, 0.12);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    animation: slideInRight 0.35s ease;
    box-shadow: var(--shadow-card);
}

.selection-card.file-card:hover {
    border-color: var(--primary-purple);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.selection-card.file-card .file-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.selection-card.file-card .file-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(123, 44, 255, 0.12), rgba(245, 130, 32, 0.12));
    color: var(--primary-purple);
}

.selection-card.file-card .file-icon svg {
    width: 24px;
    height: 24px;
}

.selection-card.file-card .file-type-badge {
    padding: 4px 10px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(123, 44, 255, 0.1), rgba(123, 44, 255, 0.05));
    color: var(--primary-purple);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.selection-card.file-card .file-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.3;
}

.selection-card.file-card .file-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.selection-card.file-card .file-meta span {
    padding: 2px 8px;
    background: rgba(123, 44, 255, 0.04);
    border-radius: 12px;
}

.selection-card.file-card .file-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(123, 44, 255, 0.06);
}

.selection-card.file-card .file-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.selection-card.file-card .file-price.free {
    color: var(--primary-green);
}

.selection-card.file-card .file-btn {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-purple), #a855f7);
    color: white;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.selection-card.file-card .file-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(123, 44, 255, 0.3);
}

.selection-card.file-card .file-btn.free-btn {
    background: linear-gradient(135deg, var(--primary-green), #a3d95b);
}

.selection-card.file-card .file-btn.free-btn:hover {
    box-shadow: 0 4px 12px rgba(140, 198, 63, 0.3);
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Right Sidebar - Ads */
.ads-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ad-card {
    background: white;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(123, 44, 255, 0.12);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.ad-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.ad-image {
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-orange));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
    position: relative;
    overflow: hidden;
}

.ad-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ad-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
}

.ad-content {
    padding: 16px;
}

.ad-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.ad-subtitle {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.4;
}

.ad-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(140, 198, 63, 0.12);
    color: var(--primary-green);
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ad-cta {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary-orange), #fb923c);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--transition);
}

.ad-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 130, 32, 0.3);
}

/* New Files Section */
.section-padding {
    padding: 60px 24px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 700;
}

.section-title span {
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.view-all-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-purple);
    display: flex;
    align-items: center;
    gap: 4px;
}

.view-all-link:hover {
    gap: 8px;
}

.new-files-container {
    max-width: 1400px;
    margin: 0 auto;
}

.new-files-scroll {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding: 8px 4px 20px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-purple) transparent;
}

.new-files-scroll::-webkit-scrollbar {
    height: 6px;
}

.new-files-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.new-files-scroll::-webkit-scrollbar-thumb {
    background: rgba(123, 44, 255, 0.2);
    border-radius: 10px;
}

.new-file-card {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: white;
    border: 2px solid rgba(123, 44, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-card);
}

.new-file-card:hover {
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.new-file-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(140, 198, 63, 0.12);
    color: var(--primary-green);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.new-file-badge.free-badge {
    background: linear-gradient(135deg, rgba(140, 198, 63, 0.15), rgba(140, 198, 63, 0.05));
    color: #4d7c0f;
}

.new-file-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
    padding-right: 50px;
    line-height: 1.3;
}

.new-file-path {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.new-file-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.new-file-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.new-file-price.free {
    color: var(--primary-green);
}

.new-file-date {
    font-size: 0.75rem;
    color: #94a3b8;
}

/* Featured Categories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.category-card {
    background: white;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(123, 44, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: var(--shadow-card);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-purple);
}

.category-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, rgba(123, 44, 255, 0.1), rgba(245, 130, 32, 0.1));
    color: var(--primary-purple);
    font-size: 1.5rem;
}

.category-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.category-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Testimonials */
.testimonials-bg {
    background: linear-gradient(180deg, transparent, rgba(123, 44, 255, 0.02), transparent);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.testimonial-card {
    background: white;
    border: 2px solid rgba(123, 44, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-card);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.testimonial-stars {
    display: flex;
    gap: 3px;
    margin-bottom: 14px;
}

.testimonial-stars svg {
    width: 18px;
    height: 18px;
    color: #fbbf24;
    fill: #fbbf24;
}

.testimonial-text {
    font-size: 0.92rem;
    color: #4b5563;
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-orange));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.testimonial-info .name {
    font-size: 0.9rem;
    font-weight: 600;
}

.testimonial-info .role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Footer */
.site-footer {
    background: linear-gradient(180deg, var(--bg-light), #f0f0f5);
    border-top: 1px solid rgba(123, 44, 255, 0.06);
    padding: 60px 24px 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto 40px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .logo {
    margin-bottom: 14px;
    font-size: 1.4rem;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.footer-column a:hover {
    color: var(--primary-purple);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 20px;
    border-top: 1px solid rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: #9ca3af;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: white;
    border: 1px solid rgba(123, 44, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-purple);
    color: white;
    border-color: var(--primary-purple);
}

/* Checkout Page */
.checkout-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 32px;
}

.checkout-card {
    background: white;
    border: 2px solid rgba(123, 44, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-card);
}

.checkout-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.checkout-file-info h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.checkout-file-info .file-path {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    padding: 10px 14px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
}

.checkout-file-info .file-notes {
    font-size: 0.88rem;
    color: #4b5563;
    line-height: 1.7;
}

.checkout-file-info .file-notes h4 {
    font-size: 0.9rem;
    margin: 16px 0 8px;
    color: var(--text-dark);
}

.checkout-file-info .file-notes ul {
    padding-left: 18px;
    margin-bottom: 12px;
}

.checkout-file-info .file-notes li {
    margin-bottom: 4px;
}

.order-summary {
    background: white;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(123, 44, 255, 0.12);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 0.92rem;
}

.summary-row.total {
    border-top: 1px solid rgba(0,0,0,0.06);
    margin-top: 10px;
    padding-top: 14px;
    font-size: 1.1rem;
    font-weight: 700;
}

.summary-row .price {
    font-weight: 600;
}

.secure-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: rgba(140, 198, 63, 0.08);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--primary-green);
    margin-top: 16px;
}

/* Success Page */
.success-container {
    max-width: 600px;
    margin: 60px auto;
    text-align: center;
    padding: 0 24px;
}

.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-green), #a3d95b);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    box-shadow: 0 8px 24px rgba(140, 198, 63, 0.3);
}

.success-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.success-message {
    color: var(--text-muted);
    margin-bottom: 32px;
}

.success-card {
    background: white;
    border: 1px solid rgba(123, 44, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: left;
    margin-bottom: 24px;
}

.success-card h4 {
    font-size: 0.95rem;
    margin-bottom: 14px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-green), #a3d95b);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 16px rgba(140, 198, 63, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(140, 198, 63, 0.4);
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    background: var(--bg-gradient);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-soft);
}

.auth-card .logo {
    justify-content: center;
    margin-bottom: 28px;
    font-size: 1.5rem;
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 8px;
    font-size: 1.4rem;
}

.auth-card p {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid rgba(123, 44, 255, 0.12);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.8);
    font-size: 0.92rem;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 4px rgba(123, 44, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group .hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-submit {
    width: 100%;
    margin-top: 8px;
    padding: 14px;
    font-size: 1rem;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--primary-purple);
    font-weight: 600;
}

/* Flash Messages */
.flash-message {
    padding: 12px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.flash-success {
    background: rgba(140, 198, 63, 0.1);
    border: 1px solid rgba(140, 198, 63, 0.2);
    color: #4d7c0f;
}

.flash-error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #b91c1c;
}

/* Responsive */
@media (max-width: 1200px) {
    .browser-container {
        grid-template-columns: 200px 1fr 240px;
    }
}

@media (max-width: 992px) {
    .browser-container {
        grid-template-columns: 1fr;
    }
    .path-panel {
        order: 2;
    }
    .selection-panel {
        order: 1;
    }
    .ads-panel {
        order: 3;
        flex-direction: row;
        overflow-x: auto;
    }
    .ad-card {
        min-width: 260px;
    }
    .checkout-container {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-top: none;
        flex-direction: column;
        padding: 12px;
        gap: 4px;
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-menu a {
        width: 100%;
    }
    .mobile-menu-btn {
        display: block;
    }
    .header-search {
        order: 3;
        max-width: none;
        width: 100%;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .selection-grid.file-type-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .selection-grid.brand-grid,
    .selection-grid.series-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .selection-grid.file-grid {
        grid-template-columns: 1fr;
    }
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }
    .selection-grid.file-type-grid {
        grid-template-columns: 1fr;
    }
    .selection-grid.brand-grid,
    .selection-grid.series-grid {
        grid-template-columns: 1fr;
    }
    .categories-grid {
        grid-template-columns: 1fr;
    }
}