:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #2d3a4f;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #38bdf8;
    --gradient-start: #0ea5e9;
    --gradient-end: #8b5cf6;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --border: rgba(148, 163, 184, 0.1);
}

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

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

/* Background effects */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.grid-pattern {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -1;
}

.hidden {
    display: none !important;
}

/* Views */
.view {
    min-height: 100vh;
}

/* Loading View */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: 24px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Login View */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    text-align: center;
}

.login-container h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.login-container .subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 400px;
}

.help-text {
    margin-top: 24px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.help-text a {
    color: var(--accent);
    text-decoration: none;
}

.help-text a:hover {
    text-decoration: underline;
}

/* Access Denied View */
.access-denied-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.icon-circle.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.access-denied-container h1 {
    font-size: 1.75rem;
    margin-bottom: 12px;
}

.access-denied-container .subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.access-request-form {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    text-align: left;
}

.access-request-form h3 {
    font-size: 1rem;
    margin-bottom: 20px;
    text-align: center;
}

.access-request-form .btn {
    display: block;
    width: 100%;
    margin-top: 8px;
}

/* Logo */
.logo-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.logo-icon.large {
    width: 80px;
    height: 80px;
    border-radius: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-card-hover);
    border-color: rgba(148, 163, 184, 0.2);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.8125rem;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group select {
    cursor: pointer;
}

.status-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.875rem;
}

.status-message.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--success);
}

.status-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error);
}

/* Header */
header {
    padding: 16px 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.logo .logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    margin-bottom: 0;
}

.beta-badge {
    background: linear-gradient(135deg, var(--warning), #f97316);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(148, 163, 184, 0.1);
}

.nav-link.active {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-menu span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Main Content */
main {
    padding: 48px 0;
}

.page-header {
    margin-bottom: 48px;
}

.page-header h1 {
    font-size: 2.25rem;
    margin-bottom: 12px;
}

.page-header .lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.2s ease;
}

.card:hover {
    border-color: rgba(14, 165, 233, 0.3);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent);
}

.card h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.9375rem;
}

.card .btn {
    display: block;
    width: 100%;
    text-align: center;
}

/* Download Card */
.download-card {
    border-color: rgba(14, 165, 233, 0.3);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(139, 92, 246, 0.05));
}

.download-info {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
    font-size: 0.875rem;
    align-items: center;
}

.download-info .version {
    color: var(--accent);
    font-weight: 500;
}

.download-info .size {
    color: var(--text-muted);
}

.download-info .sha512-hash {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    font-size: 0.75rem;
}

.download-info .hash-label {
    color: var(--text-muted);
}

.download-info .hash-value {
    color: var(--text-secondary);
    font-family: 'Monaco', 'Menlo', monospace;
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
}

.download-info .copy-hash-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
}

.download-info .copy-hash-btn:hover {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
}

.download-info .copy-hash-btn.copied {
    color: var(--success);
}

/* Beta Info Section */
.beta-info h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.feature {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.feature-status {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 8px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.feature-status.available {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.feature-status.coming-soon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.feature-status.new {
    background: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
}

.feature h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

/* Docs Grid */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.doc-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.doc-card:hover {
    border-color: rgba(14, 165, 233, 0.3);
    transform: translateY(-4px);
}

.doc-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.doc-card h3 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.doc-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

/* Feedback Page */
#page-feedback {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#page-feedback .page-header {
    width: 100%;
    max-width: 600px;
}

.feedback-container {
    width: 100%;
    max-width: 600px;
}

.feedback-container .status-message {
    margin-bottom: 24px;
}

.feedback-container form .btn {
    display: block;
    width: 100%;
    margin-top: 8px;
}

.feedback-container form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 32px;
}

.feedback-alternatives {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}

.feedback-alternatives h3 {
    font-size: 1rem;
    margin-bottom: 16px;
}

.feedback-alternatives ul {
    list-style: none;
}

.feedback-alternatives li {
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.feedback-alternatives a {
    color: var(--accent);
    text-decoration: none;
}

.feedback-alternatives a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border);
    margin-top: 48px;
}

/* Documentation Layout */
.docs-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
    min-height: calc(100vh - 200px);
}

.docs-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.docs-nav-section {
    margin-bottom: 24px;
}

.docs-nav-section h4 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding-left: 12px;
}

.docs-nav-link {
    display: block;
    padding: 8px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    margin-bottom: 2px;
}

.docs-nav-link:hover {
    color: var(--text-primary);
    background: rgba(148, 163, 184, 0.1);
}

.docs-nav-link.active {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
}

/* Docs Content */
.docs-content {
    max-width: 800px;
}

.doc-article {
    line-height: 1.7;
}

.doc-article h1 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.doc-article h2 {
    font-size: 1.5rem;
    margin-top: 40px;
    margin-bottom: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-primary);
}

.doc-article h3 {
    font-size: 1.125rem;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.doc-lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.doc-article p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.doc-article ul,
.doc-article ol {
    margin-bottom: 16px;
    padding-left: 24px;
    color: var(--text-secondary);
}

.doc-article li {
    margin-bottom: 8px;
}

.doc-article code {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.875em;
    font-family: 'Consolas', 'Monaco', monospace;
}

.doc-link {
    color: var(--accent);
    text-decoration: none;
}

.doc-link:hover {
    text-decoration: underline;
}

/* Doc Callouts */
.doc-callout {
    padding: 16px 20px;
    border-radius: 8px;
    margin: 24px 0;
}

.doc-callout strong {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.doc-callout p {
    margin: 0;
    font-size: 0.9375rem;
}

.doc-callout.info {
    background: rgba(14, 165, 233, 0.1);
    border-left: 3px solid var(--accent);
}

.doc-callout.warning {
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--warning);
}

.doc-callout.warning strong {
    color: var(--warning);
}

/* Doc Tables */
.doc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.9375rem;
}

.doc-table th,
.doc-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.doc-table th {
    background: var(--bg-card);
    color: var(--text-primary);
    font-weight: 500;
}

.doc-table td {
    color: var(--text-secondary);
}

/* Doc Examples */
.doc-examples {
    margin: 24px 0;
}

.doc-example {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
}

.doc-example code {
    display: block;
    background: none;
    color: var(--accent);
    padding: 0;
    margin-bottom: 8px;
    font-size: 0.9375rem;
}

.doc-example p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* FAQ Styles */
.doc-faq {
    margin: 24px 0;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 16px;
}

.faq-item h3 {
    font-size: 1rem;
    margin: 0 0 12px 0;
    color: var(--text-primary);
}

.faq-item p {
    margin: 0;
    color: var(--text-secondary);
}

.faq-item ul {
    margin: 8px 0 0 0;
    padding-left: 20px;
}

.faq-item li {
    margin-bottom: 4px;
}

/* Beta Terms & Checkbox Labels */
.beta-terms {
    margin: 20px 0;
    padding: 16px;
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.beta-terms .terms-intro {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.checkbox-label:last-child {
    margin-bottom: 0;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 3px;
    flex-shrink: 0;
    cursor: pointer;
}

/* File Upload */
.file-upload-wrapper {
    margin-top: 8px;
}

.file-input {
    display: none;
}

.file-upload-display {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-dark);
    border: 1px dashed var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.file-upload-display:hover {
    border-color: var(--accent);
}

.form-help {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.mobile-menu-btn:hover {
    background: rgba(148, 163, 184, 0.1);
}

/* Responsive */
@media (max-width: 968px) {
    .docs-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .docs-sidebar {
        position: static;
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        padding-bottom: 24px;
        border-bottom: 1px solid var(--border);
        max-height: none;
    }

    .docs-nav-section {
        margin-bottom: 0;
    }

    .docs-nav-section h4 {
        margin-bottom: 8px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 8px 24px 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-link {
        padding: 12px 16px;
        border-radius: 8px;
    }

    .header-content {
        flex-wrap: nowrap;
        position: relative;
    }

    .user-menu span {
        display: none;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .cards-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        flex-direction: column;
        gap: 4px;
    }

    .docs-nav-section {
        width: 100%;
    }

    .doc-article h1 {
        font-size: 1.5rem;
    }

    .doc-article h2 {
        font-size: 1.25rem;
    }

    /* Scrollable doc tables */
    .doc-table {
        font-size: 0.875rem;
    }

    .doc-table th,
    .doc-table td {
        padding: 8px 12px;
        white-space: nowrap;
    }

    .doc-article .doc-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .card,
    .doc-card {
        padding: 20px;
    }

    .feature {
        padding: 16px;
    }

    .btn-large {
        padding: 14px 24px;
        font-size: 0.9375rem;
    }

    .login-container h1 {
        font-size: 2rem;
    }

    .faq-item {
        padding: 16px;
    }
}