/* ============================================
   Claudible Design System - Claude/Anthropic Style
   ============================================ */

/* === Design Tokens === */
:root {
    /* Light Mode (Default - Claude.ai style) */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --bg-code: #1F2937;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --border: #E5E7EB;
    --border-light: #F3F4F6;
    --accent: #5B9A5D;           /* Shamrock green */
    --accent-hover: #4A8A4C;
    --accent-light: #E8F5E9;
    --link: #2563EB;
    --link-hover: #1D4ED8;
    --green: #059669;
    --green-light: #D1FAE5;
    --red: #DC2626;
    --red-light: #FEE2E2;
    --yellow: #5B9A5D;
    --yellow-light: #E8F5E9;
    --purple: #7C3AED;
    --purple-light: #EDE9FE;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Fira Mono', monospace;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;

    /* Content widths */
    --content-sm: 640px;
    --content-md: 768px;
    --content-lg: 1024px;
    --content-xl: 1280px;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0F0F0F;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #262626;
    --bg-code: #0D0D0D;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1A1;
    --text-muted: #737373;
    --border: #2E2E2E;
    --border-light: #262626;
    --accent: #6BAF6D;
    --accent-hover: #5B9A5D;
    --accent-light: rgba(107, 175, 109, 0.15);
    --link: #60A5FA;
    --link-hover: #93C5FD;
    --green: #34D399;
    --green-light: rgba(52, 211, 153, 0.15);
    --red: #F87171;
    --red-light: rgba(248, 113, 113, 0.15);
    --yellow: #6BAF6D;
    --yellow-light: rgba(107, 175, 109, 0.15);
    --purple: #A78BFA;
    --purple-light: rgba(167, 139, 250, 0.15);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.3), 0 1px 2px -1px rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

/* === Smooth theme transition === */
html.theme-transitioning,
html.theme-transitioning * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease !important;
}

/* === Logo === */
.site-logo img {
    border-radius: 5px;
}

/* Theme-based logo switching */
.logo-themed .logo-light {
    display: block;
}

.logo-themed .logo-dark {
    display: none;
}

[data-theme="dark"] .logo-themed .logo-light {
    display: none;
}

[data-theme="dark"] .logo-themed .logo-dark {
    display: block;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

/* === Custom Scrollbar === */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

*::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

*::-webkit-scrollbar-track {
    background: transparent;
}

*::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

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

a:hover {
    color: var(--link-hover);
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--bg-tertiary);
    padding: 0.125em 0.375em;
    border-radius: var(--radius-sm);
}

/* === Layout === */
.container {
    width: 100%;
    max-width: var(--content-xl);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-sm { max-width: var(--content-sm); }
.container-md { max-width: var(--content-md); }
.container-lg { max-width: var(--content-lg); }

.section {
    padding: var(--space-16) 0;
}

.section-sm {
    padding: var(--space-8) 0;
}

/* === Site Header & Navigation === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
}

.nav-logo-icon {
    width: 28px;
    height: 28px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-link {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--accent);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-mobile-toggle {
    display: none;
}

.nav-mobile-menu {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-4) 0;
    border-top: 1px solid var(--border);
}

.nav-mobile-link {
    display: block;
    padding: var(--space-3) 0;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
}

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

.nav-mobile-link.active {
    color: var(--accent);
}

.nav-mobile-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: var(--space-3) 0;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-actions .btn {
        display: none;
    }

    .nav-mobile-toggle {
        display: flex;
    }
}

/* === Site Footer === */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-12) 0 var(--space-8);
    margin-top: var(--space-16);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: none;
    margin-bottom: var(--space-3);
}

.footer-logo-icon {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

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

.footer-column h4,
.footer-heading {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom,
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-6);
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-bottom p,
.footer-content p {
    margin: 0;
}

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

.footer-business {
    margin: var(--space-1) 0 0;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer-copyright {
    margin: 0;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-6);
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: none;
    }

    .footer-bottom,
    .footer-content {
        flex-direction: column;
        gap: var(--space-2);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    .footer-heading {
        font-size: 0.75rem;
        margin-bottom: var(--space-2);
    }

    .footer-links a {
        font-size: 0.8125rem;
    }
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--border);
}

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

.btn-outline:hover:not(:disabled) {
    background: var(--bg-tertiary);
}

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

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-link {
    background: transparent;
    color: var(--link);
    padding: 0;
}

.btn-link:hover:not(:disabled) {
    color: var(--link-hover);
    text-decoration: underline;
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: 1rem;
}

.btn-icon {
    padding: var(--space-2);
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* === Cards === */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.card-elevated {
    box-shadow: var(--shadow-md);
    border: none;
}

.card-interactive {
    transition: all var(--transition);
}

.card-interactive:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

/* === Code Blocks === */
.code-block {
    position: relative;
    background: var(--bg-code);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    overflow-x: auto;
}

.code-block code {
    display: block;
    color: #E5E7EB;
    background: transparent;
    padding: 0;
    font-size: 0.875rem;
    line-height: 1.7;
}

.code-block .btn-copy {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.code-block:hover .btn-copy {
    opacity: 1;
}

.code-block .btn-copy:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.code-inline {
    background: var(--bg-code);
    color: #E5E7EB;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* === Forms === */
.input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.input::placeholder {
    color: var(--text-muted);
}

.input-mono {
    font-family: var(--font-mono);
}

.label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent);
    cursor: pointer;
}

/* === Badges & Status === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border-radius: var(--radius-full);
}

.badge-default {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.badge-success {
    background: var(--green-light);
    color: var(--green);
}

.badge-warning {
    background: var(--yellow-light);
    color: var(--yellow);
}

.badge-error {
    background: var(--red-light);
    color: var(--red);
}

.badge-purple {
    background: var(--purple-light);
    color: var(--purple);
}

/* === Tables === */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--bg-secondary);
}

.table td {
    font-size: 0.875rem;
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* === Icons === */
.icon {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

.icon-sm { width: 0.875rem; height: 0.875rem; }
.icon-lg { width: 1.25rem; height: 1.25rem; }
.icon-xl { width: 1.5rem; height: 1.5rem; }

/* === Toast Notifications === */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toast {
    padding: var(--space-3) var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    font-size: 0.875rem;
    animation: toast-slide-in 0.3s ease;
}

.toast-success {
    border-color: var(--green);
    color: var(--green);
}

.toast-error {
    border-color: var(--red);
    color: var(--red);
}

@keyframes toast-slide-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Utilities === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-success { color: var(--green); }
.text-error { color: var(--red); }
.text-warning { color: var(--yellow); }

.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-tertiary { background-color: var(--bg-tertiary); }

.font-mono { font-family: var(--font-mono); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* === Animations === */
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade-in { animation: fade-in 0.3s ease; }
.animate-slide-up { animation: slide-up 0.3s ease; }
.animate-spin { animation: spin 1s linear infinite; }

/* === Floating Contact Buttons === */
.floating-buttons {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.floating-contact {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: white;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

.floating-telegram {
    background: #0088cc;
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.4);
}

.floating-telegram:hover {
    background: #0077b5;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 136, 204, 0.5);
}

.floating-discord {
    background: #5865F2;
    box-shadow: 0 4px 12px rgba(88, 101, 242, 0.4);
}

.floating-discord:hover {
    background: #4752C4;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(88, 101, 242, 0.5);
}

.floating-contact svg {
    width: 20px;
    height: 20px;
}

.floating-contact-text {
    display: inline;
}

@media (max-width: 480px) {
    .floating-contact {
        padding: var(--space-3);
        border-radius: 50%;
    }

    .floating-contact-text {
        display: none;
    }
}

/* === Responsive === */
@media (max-width: 768px) {
    :root {
        --space-6: 1rem;
        --space-8: 1.5rem;
        --space-16: 3rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .container {
        padding: 0 var(--space-4);
    }

    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
        bottom: var(--space-4);
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.375rem; }

    .btn {
        padding: var(--space-3) var(--space-4);
    }

    .btn-lg {
        padding: var(--space-3) var(--space-5);
    }
}

/* ============================================
   Login Modal
   ============================================ */
.login-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.login-modal.active {
    display: flex;
}

.login-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.login-modal-content {
    position: relative;
    width: 100%;
    max-width: 420px;
    margin: var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: modal-slide-in 0.2s ease;
}

@keyframes modal-slide-in {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border);
}

.login-modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.login-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.login-modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.login-modal-body {
    padding: var(--space-6);
}

.login-modal-body .input-group {
    margin-bottom: var(--space-4);
}

.login-modal-body .input-group:last-child {
    margin-bottom: 0;
}

.login-modal-error {
    padding: var(--space-3) var(--space-4);
    background: var(--red-light);
    color: var(--red);
    font-size: 0.875rem;
    border-radius: var(--radius);
    margin-top: var(--space-4);
    display: none;
}

.login-modal-error.show {
    display: block;
}

.login-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.login-btn-loading {
    display: none;
}

.login-btn-loading.show {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.login-agreement {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    margin-top: var(--space-4);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.login-agreement input[type="checkbox"] {
    margin-top: 3px;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--accent);
}

.login-agreement a {
    color: var(--link);
    text-decoration: underline;
}

.login-agreement a:hover {
    color: var(--link-hover);
}

/* Override data-lang-content display from block to inline inside agreement */
.login-agreement [data-lang-content] {
    display: none !important;
}
html[data-lang="en"] .login-agreement [data-lang-content="en"],
html:not([data-lang]) .login-agreement [data-lang-content="en"] {
    display: inline !important;
}
html[data-lang="vi"] .login-agreement [data-lang-content="vi"] {
    display: inline !important;
}

/* ============================================
   Auth Visibility Helpers
   ============================================ */
/* Dashboard link - hidden when not logged in */
[data-auth-link] {
    display: none !important;
}

/* Login button - visible when not logged in */
[data-login-btn] {
    display: inline-flex;
}

/* Logout button - hidden when not logged in */
[data-logout-btn] {
    display: none;
}

/* When logged in: show Dashboard link and Logout, hide Login */
html.logged-in [data-auth-link],
body.logged-in [data-auth-link] {
    display: inline-flex !important;
}

html.logged-in [data-login-btn],
body.logged-in [data-login-btn] {
    display: none !important;
}

html.logged-in [data-logout-btn],
body.logged-in [data-logout-btn] {
    display: inline-flex !important;
}

/* Mobile nav auth visibility */
.nav-mobile-menu [data-auth-link] {
    display: none !important;
}

html.logged-in .nav-mobile-menu [data-auth-link],
body.logged-in .nav-mobile-menu [data-auth-link] {
    display: block !important;
}

/* ============================================
   Language Toggle & Dual-Language Content
   ============================================ */

/* Language toggle button label */
.lang-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}

/* Dual-language content blocks - hidden by default */
[data-lang-content="en"],
[data-lang-content="vi"] {
    display: none;
}

/* Show matching language content */
html[data-lang="en"] [data-lang-content="en"] { display: block; }
html[data-lang="vi"] [data-lang-content="vi"] { display: block; }

/* Default to English if no data-lang set */
html:not([data-lang]) [data-lang-content="en"] { display: block; }