/* ================================
   MODERN SITE HEADER
   Inspired by Cursor.com
   ================================ */

/* Header Container */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 24px;
}

/* Logo */
.header-logo {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s ease;
}

.logo-link:hover {
    opacity: 0.85;
}

.logo-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #8b5cf6, #a855f7, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.header-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.auth-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Button Styles for Header */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
    border: none;
    line-height: 1.4;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid transparent;
}

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

.btn-primary {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    transform: translateY(-1px);
}

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

.btn-sm {
    padding: 7px 14px;
    font-size: 13px;
}

.btn-full {
    width: 100%;
}

/* User Menu in Header */
.user-menu-header {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.user-profile-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px 6px 6px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.user-profile-trigger:hover {
    background: rgba(255, 255, 255, 0.05);
}

.user-avatar-small {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 12px;
    flex-shrink: 0;
}

.dropdown-caret {
    color: var(--color-text-tertiary);
    transition: transform 0.2s ease;
}

.user-profile-trigger:hover .dropdown-caret {
    color: var(--color-text-secondary);
}

/* User Dropdown Menu */
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-primary);
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    padding: 8px;
    z-index: 1001;
}

.dropdown-user-info {
    padding: 12px;
    border-bottom: 1px solid var(--color-border-primary);
    margin-bottom: 8px;
}

.dropdown-user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.dropdown-user-email {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border-primary);
    margin: 8px 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: 14px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
}

.dropdown-item:hover {
    background: var(--color-bg-hover);
}

.dropdown-item-danger {
    color: #f87171;
}

.dropdown-item-danger:hover {
    background: rgba(248, 113, 113, 0.1);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 32px;
    height: 32px;
    padding: 6px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

.menu-line {
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translateY(7px);
}

.mobile-menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translateY(-7px);
}

/* Mobile Navigation */
.mobile-nav {
    padding: 16px 24px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: var(--color-bg-secondary);
}

.mobile-nav-link {
    display: block;
    padding: 12px 16px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.mobile-nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.mobile-nav-divider {
    height: 1px;
    background: var(--color-border-primary);
    margin: 16px 0;
}

.mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

/* Responsive */
@media (max-width: 900px) {
    .header-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-container {
        gap: 16px;
    }
}

@media (max-width: 640px) {
    .header-container {
        padding: 0 16px;
        height: 56px;
    }
    
    .logo-text {
        font-size: 15px;
    }
    
    .logo-icon {
        width: 24px;
        height: 24px;
    }
    
    .auth-buttons {
        gap: 6px;
    }
    
    .btn-sm {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* Light Theme Support */
[data-theme="light"] .site-header {
    background: rgba(255, 255, 255, 0.8);
    border-bottom-color: var(--color-border-primary);
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .btn-ghost:hover,
[data-theme="light"] .user-profile-trigger:hover,
[data-theme="light"] .mobile-menu-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .mobile-nav {
    background: var(--color-bg-primary);
}

[data-theme="light"] .mobile-nav-link:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* ================================
   DOWNLOAD PAGE STYLES
   ================================ */

/* Main Content */
.download-main {
    min-height: 100vh;
    background: var(--color-bg-primary);
    padding-top: 64px;
}

.download-container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 40px 24px 60px;
}

/* Hero Section */
.download-hero {
    text-align: center;
    margin-bottom: 40px;
}

.hero-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Platform Detection */
.platform-detection {
    margin-bottom: 24px;
}

.detected-platform {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-secondary);
    border-radius: 8px;
    color: var(--color-text-secondary);
    font-size: 14px;
}

.platform-icon {
    color: var(--color-primary);
}

/* Recommended Download */
.recommended-download {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.btn-download-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.25);
}

.btn-download-primary:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.35);
    transform: translateY(-2px);
}

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

.download-version {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* All Downloads Section */
.all-downloads {
    margin-top: 50px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 24px;
}

/* Downloads List */
.downloads-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}

.download-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: 12px;
    transition: all 0.2s ease;
}

.download-card:hover {
    border-color: var(--color-border-secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.download-card.recommended {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, rgba(168, 85, 247, 0.03) 100%);
}

.download-card.recommended:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.2);
}

.download-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
}

.download-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.download-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border-radius: 12px;
    color: var(--color-primary);
}

.download-card.recommended .download-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
}

.recommended-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: #ffffff;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.download-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.download-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.meta-item svg {
    flex-shrink: 0;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 16px;
}

.btn-download:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-tertiary);
    transform: translateY(-1px);
}

.download-card.recommended .btn-download {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.2);
}

.download-card.recommended .btn-download:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    transform: translateY(-2px);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 16px;
    grid-column: 1 / -1;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border-secondary);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-state p {
    color: var(--color-text-tertiary);
    font-size: 14px;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 12px;
    grid-column: 1 / -1;
}

.empty-state svg {
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--color-text-secondary);
    font-size: 15px;
    font-weight: 500;
}

.empty-state-hint {
    color: var(--color-text-tertiary) !important;
    font-size: 13px !important;
    font-weight: 400 !important;
}

/* System Requirements */
.system-requirements {
    margin-top: 50px;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.requirements-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
    .requirements-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 580px) {
    .requirements-grid-3 {
        grid-template-columns: 1fr;
    }
}

.requirement-card {
    padding: 24px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.req-chip {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-light, rgba(139, 92, 246, 0.1));
    border-radius: 4px;
    padding: 2px 8px;
    margin-bottom: 12px;
    letter-spacing: 0.03em;
}

.requirement-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: 10px;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.requirement-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 12px;
}

.requirement-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.requirement-card li {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.requirement-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 600;
}

/* Footer */
.download-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-primary);
    padding: 32px 24px;
    margin-top: 50px;
}

.footer-container {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

.footer-copy {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .download-main {
        padding-top: 56px;
    }
    
    .download-container {
        padding: 32px 16px 48px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 15px;
    }
    
    .downloads-list {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 26px;
    }
    
    .btn-download-primary {
        padding: 14px 24px;
        font-size: 15px;
    }
    
    .download-card {
        padding: 16px;
    }
}