/* ==================== CSS Variables ==================== */
:root {
    /* Colors */
    --color-bg: #0a0e27;
    --color-bg-secondary: #111632;
    --color-bg-tertiary: #1a1f3a;
    --color-text: #e8eaf6;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;
    
    --color-primary: #6366f1;
    --color-primary-hover: #7c3aed;
    --color-primary-light: rgba(99, 102, 241, 0.1);
    
    --color-success: #10b981;
    --color-success-light: rgba(16, 185, 129, 0.1);
    --color-warning: #f59e0b;
    --color-warning-light: rgba(245, 158, 11, 0.1);
    --color-error: #ef4444;
    --color-error-light: rgba(239, 68, 68, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    --gradient-card: linear-gradient(145deg, rgba(17, 22, 50, 0.8) 0%, rgba(10, 14, 39, 0.9) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== Base Styles ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== Container ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ==================== Cards ==================== */
.card {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    border-color: rgba(99, 102, 241, 0.3);
}

.card h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.card p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Card Variants */
.card.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: rgba(17, 22, 50, 0.4);
}

.card.empty-state svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--color-text-muted);
    opacity: 0.5;
}

.card.empty-state p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.card.error {
    background: var(--color-error-light);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--color-error);
}

/* ==================== Buttons ==================== */
.btn,
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus,
button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

/* Primary Button */
.btn-primary,
.btn-subscribe,
.card button:not(.btn-secondary):not(.modal-btn-secondary):not(.collapsible-btn):not([disabled]) {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
    width: 100%;
    margin-top: 1.5rem;
}

/* Wider subscribe button */
.btn-subscribe-wide {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.025em;
}

.btn-primary:hover,
.btn-subscribe:hover:not(:disabled),
.card button:not(.btn-secondary):not(.modal-btn-secondary):not(.collapsible-btn):not([disabled]):hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:active,
.btn-subscribe:active:not(:disabled),
.card button:not(.btn-secondary):not(.modal-btn-secondary):not(.collapsible-btn):not([disabled]):active {
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Error Button */
.btn-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-error:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.5);
}

/* Disabled Button */
button:disabled,
.btn:disabled {
    background: rgba(107, 114, 128, 0.2);
    color: var(--color-text-muted);
    cursor: not-allowed;
    opacity: 0.5;
    transform: none !important;
    box-shadow: none !important;
}

/* Logout Button */
.btn-logout {
    background: var(--color-error-light);
    color: var(--color-error);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
}

/* Google Button */
.btn-google {
    background: white;
    color: #1f2937;
    border: 1px solid #e5e7eb;
    width: 100%;
    padding: 0.875rem;
}

.btn-google:hover {
    background: #f9fafb;
    box-shadow: var(--shadow-md);
}

.btn-google svg {
    width: 20px;
    height: 20px;
}

/* Analytics & Back Buttons */
.btn-analytics,
.btn-analytics-header,
.btn-back {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-analytics:hover,
.btn-analytics-header:hover,
.btn-back:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

.btn-back:hover {
    transform: translateX(-2px) translateY(0);
}

/* ==================== Forms ==================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* ==================== Tabs ==================== */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.375rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tab {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.tab.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

/* Period Tabs */
.period-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.period-tab {
    padding: 0.625rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
}

.period-tab:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    border-color: rgba(255, 255, 255, 0.15);
}

.period-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

/* ==================== Badges ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1;
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-danger,
.badge-error {
    background: var(--color-error-light);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-info {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* ==================== Progress Bar ==================== */
.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
    margin: 0.5rem 0;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    transition: width var(--transition-slow);
    border-radius: 3px;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-success), #34d399);
    border-radius: 4px;
    position: relative;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    animation: progressLoad 1.2s ease-out;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
}

.progress-bar-fill.progress-bar-danger {
    background: linear-gradient(90deg, var(--color-error), #f87171);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
}

@keyframes progressLoad {
    from {
        width: 0 !important;
        opacity: 0.8;
    }
    to {
        opacity: 1;
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* ==================== Grid ==================== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

/* ==================== Header ==================== */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

header h1 {
    font-size: 1.75rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.user-email {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ==================== Navigation ==================== */
nav {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.nav-link {
    padding: 0.625rem 1.25rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-size: 0.9375rem;
    font-weight: 500;
}

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

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* ==================== Section Title ==================== */
.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9375rem;
}

/* ==================== Price Display ==================== */
.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 1rem 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-currency {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ==================== Stats Card ==================== */
.stat-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

/* ==================== Chart Section ==================== */
.chart-section {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    padding: 2rem;
    margin-bottom: 2rem;
}

.chart-section h2 {
    margin-bottom: 1.5rem;
}

.chart-section canvas {
    max-height: 400px;
    width: 100% !important;
}

/* ==================== Collapsible ==================== */
.collapsible-btn {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--color-text);
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    font-weight: 600;
    margin-bottom: 0.75rem;
    transition: all var(--transition-base);
}

.collapsible-btn:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-1px);
}

.collapsible-content {
    display: none;
    flex-direction: column;
    gap: 0.75rem;
}

.collapsible-content.active {
    display: flex;
}

/* ==================== Service Item ==================== */
.service-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 1rem;
    transition: all var(--transition-base);
}

.service-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.12);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.service-name {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9375rem;
}

.service-desc {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

/* ==================== Divider ==================== */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.divider span {
    padding: 0 1rem;
}

/* ==================== Language Switcher ==================== */
.lang-switcher {
    display: flex;
    gap: 0.5rem;
    background: rgba(17, 22, 50, 0.6);
    backdrop-filter: blur(10px);
    padding: 0.375rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Fixed language switcher for pages without header (login, etc) */
body:not(:has(header)) .lang-switcher,
.lang-switcher.fixed {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
    box-shadow: var(--shadow-xl);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 0.875rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.875rem;
    font-weight: 600;
}

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

.lang-btn.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.lang-flag {
    font-size: 1.125rem;
}

/* ==================== Compact Language Switcher ==================== */
.lang-switcher-compact {
    display: flex;
    gap: 0.25rem;
    background: rgba(17, 22, 50, 0.4);
    backdrop-filter: blur(10px);
    padding: 0.25rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.lang-btn-compact {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.25rem;
    opacity: 0.6;
}

.lang-btn-compact:hover {
    background: rgba(255, 255, 255, 0.08);
    opacity: 1;
    transform: scale(1.1);
}

.lang-btn-compact.active {
    background: rgba(99, 102, 241, 0.2);
    opacity: 1;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

/* ==================== Messages ==================== */
.error,
.success {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    display: none;
    border: 1px solid;
}

.error {
    background: var(--color-error-light);
    color: var(--color-error);
    border-color: rgba(239, 68, 68, 0.3);
}

.success {
    background: var(--color-success-light);
    color: var(--color-success);
    border-color: rgba(16, 185, 129, 0.3);
}

.error.show,
.success.show {
    display: block;
}

/* ==================== Modal ==================== */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn var(--transition-slow);
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-2xl);
    animation: modalSlideIn var(--transition-slow);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: 1.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--color-text);
}

.modal-close {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 1.5rem;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    transform: rotate(90deg);
}

.modal-body {
    padding: 1.75rem;
}

.modal-body p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.modal-actions {
    padding: 1.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.modal-btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.modal-btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.modal-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.modal-btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

/* ==================== Loading ==================== */
.loading {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 1rem;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==================== Utility Classes ==================== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

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

/* ==================== Mobile Menu Toggle ==================== */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: transform var(--transition-base);
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(9.5px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9.5px) rotate(-45deg);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .card {
        padding: 1.25rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lang-switcher {
        top: 1rem;
        right: 1rem;
        padding: 0.375rem;
    }
    
    .lang-btn {
        padding: 0.5rem 0.625rem;
        font-size: 0.8125rem;
    }
    
    /* Mobile Header */
    header {
        position: relative;
        flex-wrap: wrap;
    }
    
    .header-left {
        flex: 1;
    }
    
    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hide user-info by default on mobile */
    .user-info {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-secondary);
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        padding: 5rem 1.5rem 2rem;
        flex-direction: column;
        align-items: stretch;
        gap: 1.5rem;
        transition: right var(--transition-slow);
        z-index: 1000;
        overflow-y: auto;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
    }
    
    .user-info.mobile-open {
        right: 0;
    }
    
    /* Mobile Navigation */
    nav {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }
    
    .nav-link {
        width: 100%;
        padding: 0.875rem 1rem;
        border-radius: var(--radius-md);
        background: rgba(255, 255, 255, 0.03);
        text-align: left;
    }
    
    .nav-link.active {
        background: var(--gradient-primary);
        color: white;
    }
    
    /* Mobile Language Switcher */
    .lang-switcher-compact {
        width: 100%;
        justify-content: center;
        padding: 1rem 0;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    /* Mobile Logout Button */
    .btn-logout {
        width: 100%;
        justify-content: center;
    }
    
    /* Modal adjustments */
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .period-tabs {
        flex-direction: column;
    }
    
    .period-tab {
        width: 100%;
    }
}

/* ==================== Animations ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-slow);
}

/* ==================== Developer Pages Styles ==================== */

/* Developer Container & Layout */
.developer-container {
    max-width: 1400px !important;
    margin: 2rem auto !important;
    padding: 0 1rem !important;
}

.developer-wrapper {
    display: grid !important;
    grid-template-columns: 280px 1fr !important;
    gap: 2rem !important;
    min-height: calc(100vh - 200px) !important;
}

.developer-sidebar {
    background: linear-gradient(145deg, rgba(17, 22, 50, 0.95) 0%, rgba(10, 14, 39, 0.98) 100%) !important;
    border: 1px solid rgba(111, 241, 194, 0.1) !important;
    border-radius: 20px !important;
    padding: 2rem 1.5rem !important;
    height: fit-content !important;
    position: sticky !important;
    top: 100px !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3) !important;
}

.sidebar-header {
    margin-bottom: 2rem !important;
    padding-bottom: 1.5rem !important;
    border-bottom: 1px solid rgba(111, 241, 194, 0.1) !important;
}

.sidebar-header h2 {
    font-size: 1.125rem !important;
    font-weight: 600 !important;
    color: var(--color-text) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
    opacity: 0.8 !important;
}

.sidebar-nav {
    display: flex !important;
    flex-direction: column !important;
    gap: 0.375rem !important;
}

.sidebar-link {
    display: flex !important;
    align-items: center !important;
    gap: 0.875rem !important;
    padding: 0.875rem 1.125rem !important;
    border-radius: 12px !important;
    color: var(--color-text-secondary) !important;
    text-decoration: none !important;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    font-weight: 500 !important;
    position: relative !important;
    overflow: hidden !important;
}

.sidebar-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(180deg, #6ff1c2 0%, #1f4fff 100%);
    transform: scaleY(0);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-link:hover {
    background: rgba(111, 241, 194, 0.08) !important;
    color: var(--color-text) !important;
    transform: translateX(4px) !important;
}

.sidebar-link:hover::before {
    transform: scaleY(1) !important;
}

.sidebar-link.active {
    background: linear-gradient(135deg, rgba(31, 79, 255, 0.15) 0%, rgba(111, 241, 194, 0.15) 100%) !important;
    color: var(--color-primary) !important;
    box-shadow: 0 4px 12px rgba(31, 79, 255, 0.2) !important;
}

.sidebar-link.active::before {
    transform: scaleY(1) !important;
}

.sidebar-icon {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 20px !important;
    height: 20px !important;
    flex-shrink: 0 !important;
}

.sidebar-icon svg {
    width: 100% !important;
    height: 100% !important;
}

.sidebar-text {
    font-size: 0.9375rem !important;
}

.sidebar-dropdown {
    display: flex !important;
    flex-direction: column !important;
    gap: 0.375rem !important;
}

.dropdown-toggle {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    cursor: pointer !important;
}

.dropdown-arrow {
    width: 16px !important;
    height: 16px !important;
    transition: transform 0.3s ease !important;
}

.dropdown-toggle.active .dropdown-arrow {
    transform: rotate(180deg) !important;
}

.dropdown-content {
    display: none !important;
    flex-direction: column !important;
    gap: 0.125rem !important;
    margin-left: 2.5rem !important;
    margin-top: 0.5rem !important;
    padding-left: 0.5rem !important;
    border-left: 2px solid rgba(111, 241, 194, 0.1) !important;
}

.dropdown-content.show {
    display: flex !important;
}

.dropdown-item {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    padding: 0.375rem 0.75rem !important;
    border-radius: 6px !important;
    color: var(--color-text-secondary) !important;
    text-decoration: none !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    font-size: 0.8125rem !important;
    font-weight: 500 !important;
    position: relative !important;
    overflow: hidden !important;
}

.dropdown-item::before {
    content: '' !important;
    position: absolute !important;
    left: 0 !important;
    top: 0 !important;
    height: 100% !important;
    width: 2px !important;
    background: linear-gradient(180deg, #6ff1c2 0%, #1f4fff 100%) !important;
    transform: scaleY(0) !important;
    transition: transform 0.2s ease !important;
}

.dropdown-item:hover {
    background: rgba(111, 241, 194, 0.08) !important;
    color: var(--color-text) !important;
    transform: translateX(3px) !important;
    padding-left: 0.875rem !important;
}

.dropdown-item:hover::before {
    transform: scaleY(1) !important;
}

.dropdown-item.active {
    background: linear-gradient(135deg, rgba(31, 79, 255, 0.12) 0%, rgba(111, 241, 194, 0.12) 100%) !important;
    color: var(--color-primary) !important;
    font-weight: 600 !important;
    padding-left: 0.875rem !important;
}

.dropdown-item.active::before {
    transform: scaleY(1) !important;
}

.developer-content {
    min-width: 0 !important;
}

.section-header {
    margin-bottom: 2rem !important;
}

.section-header h1 {
    font-size: 2rem !important;
    font-weight: 800 !important;
    margin-bottom: 0.5rem !important;
    background: linear-gradient(135deg, #1f4fff 0%, #6ff1c2 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

.section-header p {
    color: var(--color-text-secondary) !important;
    font-size: 1rem !important;
}

/* Pricing Service Styles */
.pricing-container {
    max-width: 1200px;
}

.error-message {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.3);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    color: var(--color-error);
}

.pricing-table-container {
    margin-top: 2rem;
}

.pricing-table {
    width: 100%;
    background: linear-gradient(145deg, rgba(17, 22, 50, 0.6) 0%, rgba(10, 14, 39, 0.8) 100%);
    border: 1px solid rgba(111, 241, 194, 0.12);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.pricing-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.pricing-table th {
    background: linear-gradient(135deg, rgba(31, 79, 255, 0.15) 0%, rgba(111, 241, 194, 0.15) 100%);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--color-text);
    border-bottom: 2px solid rgba(111, 241, 194, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-table td {
    padding: 0.875rem 1rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(111, 241, 194, 0.08);
    vertical-align: top;
}

.pricing-table tr:last-child td {
    border-bottom: none;
}

.pricing-table tr:hover {
    background: rgba(111, 241, 194, 0.04);
}

.pricing-table tr:hover td {
    color: var(--color-text);
}

.model-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.model-code {
    font-size: 0.75rem;
    opacity: 0.6;
    font-family: 'Courier New', monospace;
    margin-bottom: 0.375rem;
}

.model-status {
    display: inline-flex;
    align-items: center;
    padding: 0.1875rem 0.5rem;
    border-radius: 6px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.model-status.active {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.model-status.inactive {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.price-value {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-primary);
    font-family: 'Courier New', monospace;
    display: block;
    margin-bottom: 0.25rem;
}

.price-detail {
    font-size: 0.6875rem;
    opacity: 0.7;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.no-pricing {
    text-align: center;
    padding: 3rem;
    color: var(--color-text-secondary);
}

.meta-info {
    font-size: 0.6875rem;
    opacity: 0.65;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
    line-height: 1.4;
}

/* API Documentation Styles */
.api-doc-container {
    max-width: 900px;
}

.markdown-content {
    background: linear-gradient(145deg, rgba(17, 22, 50, 0.6) 0%, rgba(10, 14, 39, 0.8) 100%);
    border: 1px solid rgba(111, 241, 194, 0.12);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    line-height: 1.8;
}

.markdown-content h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    margin-top: 2rem;
    background: linear-gradient(135deg, #1f4fff 0%, #6ff1c2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.markdown-content h1:first-child {
    margin-top: 0;
}

.markdown-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
    color: var(--color-primary);
}

.markdown-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    margin-top: 1.25rem;
    color: var(--color-text);
}

.markdown-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    margin-top: 1rem;
    color: var(--color-text);
}

.markdown-content p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

.markdown-content ul,
.markdown-content ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
    color: var(--color-text-secondary);
}

.markdown-content li {
    margin-bottom: 0.5rem;
}

.markdown-content code {
    background: rgba(0, 0, 0, 0.4);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: #6ff1c2;
}

.markdown-content pre {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(111, 241, 194, 0.2);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.markdown-content pre code {
    background: none;
    padding: 0;
    color: #6ff1c2;
    font-size: 0.875rem;
}

.markdown-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.markdown-content table th,
.markdown-content table td {
    padding: 0.75rem;
    border: 1px solid rgba(111, 241, 194, 0.2);
    text-align: left;
}

.markdown-content table th {
    background: rgba(31, 79, 255, 0.15);
    font-weight: 600;
    color: var(--color-text);
}

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

.markdown-content a {
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.markdown-content a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid rgba(111, 241, 194, 0.2);
    margin: 2rem 0;
}

.markdown-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1rem 0;
}

/* Pricing Page Styles */
.pricing-card {
    background: linear-gradient(145deg, rgba(17, 22, 50, 0.6) 0%, rgba(10, 14, 39, 0.8) 100%);
    border: 1px solid rgba(111, 241, 194, 0.12);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: rgba(111, 241, 194, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(111, 241, 194, 0.1);
}

.pricing-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(111, 241, 194, 0.1);
}

.pricing-service-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.pricing-status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-status.active {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.pricing-status.inactive {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.pricing-item {
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    border: 1px solid rgba(111, 241, 194, 0.1);
}

.pricing-type {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-type svg {
    width: 16px;
    height: 16px;
}

.pricing-amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: 'Courier New', monospace;
}

.pricing-currency {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-left: 0.25rem;
}

.pricing-quantity {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

.pricing-description {
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(31, 79, 255, 0.1);
    border-radius: 6px;
    border-left: 3px solid var(--color-primary);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.pricing-dates {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(111, 241, 194, 0.1);
    display: flex;
    gap: 1.5rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.pricing-date {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.pricing-date svg {
    width: 14px;
    height: 14px;
}

.no-pricing-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Developer Pages Responsive */
@media (max-width: 1024px) {
    .developer-wrapper {
        grid-template-columns: 240px 1fr !important;
        gap: 1.5rem !important;
    }
    
    .developer-sidebar {
        padding: 1.5rem 1.25rem !important;
    }
    
    .pricing-container {
        max-width: 100% !important;
    }
    
    .pricing-table-container {
        margin-top: 1.5rem !important;
        overflow-x: auto !important;
    }
    
    .pricing-table {
        min-width: 800px !important;
    }
}

@media (max-width: 768px) {
    .developer-container {
        padding: 0 0.75rem !important;
        margin: 1rem auto !important;
        max-width: 100% !important;
    }
    
    .developer-wrapper {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
    
    .developer-sidebar {
        position: relative !important;
        top: 0 !important;
        border-radius: 12px !important;
        padding: 1.25rem !important;
        margin-bottom: 1rem !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .sidebar-header {
        margin-bottom: 1rem !important;
        padding-bottom: 1rem !important;
    }
    
    .sidebar-header h2 {
        font-size: 1rem !important;
    }
    
    .sidebar-nav {
        flex-direction: column !important;
        gap: 0.5rem !important;
    }
    
    .sidebar-link {
        padding: 0.75rem 1rem !important;
        font-size: 0.875rem !important;
    }
    
    .sidebar-icon {
        width: 18px !important;
        height: 18px !important;
    }
    
    .dropdown-content {
        margin-left: 2rem !important;
        margin-top: 0.375rem !important;
        padding-left: 0.375rem !important;
    }
    
    .dropdown-item {
        padding: 0.5rem 0.625rem !important;
        font-size: 0.75rem !important;
    }
    
    .section-header {
        margin-bottom: 1.5rem !important;
    }
    
    .section-header h1 {
        font-size: 1.5rem !important;
        margin-bottom: 0.375rem !important;
    }
    
    .section-header p {
        font-size: 0.875rem !important;
    }
    
    .pricing-container {
        padding: 0 0.5rem !important;
    }
    
    .pricing-table {
        border-radius: 10px !important;
        min-width: 700px !important;
    }
    
    .pricing-table th {
        padding: 0.625rem 0.75rem !important;
        font-size: 0.6875rem !important;
    }
    
    .pricing-table td {
        padding: 0.75rem 0.75rem !important;
    }
    
    .model-name {
        font-size: 0.8125rem !important;
    }
    
    .model-code {
        font-size: 0.6875rem !important;
    }
    
    .price-value {
        font-size: 0.8125rem !important;
    }
    
    .price-detail {
        font-size: 0.625rem !important;
    }
    
    .meta-info {
        font-size: 0.625rem !important;
    }
    
    .model-status {
        font-size: 0.625rem !important;
        padding: 0.125rem 0.375rem !important;
    }
    
    .api-doc-container {
        padding: 0 0.5rem !important;
    }
    
    .markdown-content {
        padding: 1.5rem !important;
        border-radius: 12px !important;
    }
    
    .markdown-content h1 {
        font-size: 1.5rem !important;
        margin-top: 1.5rem !important;
    }
    
    .markdown-content h2 {
        font-size: 1.25rem !important;
        margin-top: 1.25rem !important;
    }
    
    .markdown-content h3 {
        font-size: 1.125rem !important;
        margin-top: 1rem !important;
    }
    
    .markdown-content h4 {
        font-size: 1rem !important;
        margin-top: 0.875rem !important;
    }
    
    .markdown-content pre {
        padding: 0.75rem !important;
        font-size: 0.8125rem !important;
    }
    
    .markdown-content pre code {
        font-size: 0.8125rem !important;
    }
    
    .markdown-content table {
        font-size: 0.8125rem !important;
    }
    
    .markdown-content table th,
    .markdown-content table td {
        padding: 0.5rem !important;
    }
    
    .pricing-card {
        padding: 1.25rem !important;
    }
    
    .pricing-header {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.75rem !important;
    }
    
    .pricing-service-name {
        font-size: 1.125rem !important;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr !important;
    }
    
    .pricing-amount {
        font-size: 1.5rem !important;
    }
}

@media (max-width: 480px) {
    .developer-container {
        padding: 0 0.5rem !important;
        margin: 0.75rem auto !important;
        max-width: 100% !important;
    }
    
    .developer-sidebar {
        padding: 1rem !important;
        border-radius: 10px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .developer-content {
        width: 100% !important;
        overflow-x: hidden !important;
    }
    
    .sidebar-header h2 {
        font-size: 0.875rem !important;
    }
    
    .sidebar-link {
        padding: 0.625rem 0.875rem !important;
        font-size: 0.8125rem !important;
    }
    
    .sidebar-icon {
        width: 16px !important;
        height: 16px !important;
    }
    
    .dropdown-content {
        margin-left: 1.75rem !important;
        padding-left: 0.25rem !important;
    }
    
    .dropdown-item {
        padding: 0.4375rem 0.5rem !important;
        font-size: 0.6875rem !important;
    }
    
    .section-header h1 {
        font-size: 1.25rem !important;
    }
    
    .section-header p {
        font-size: 0.8125rem !important;
    }
    
    .developer-content {
        padding: 0 !important;
    }
    
    .pricing-container {
        padding: 0 0.25rem !important;
    }
    
    .section-header {
        margin-bottom: 1rem !important;
    }
    
    .pricing-table-container {
        margin-top: 1rem !important;
    }
    
    .pricing-table {
        border-radius: 8px !important;
        min-width: 600px !important;
    }
    
    .pricing-table th {
        padding: 0.5rem 0.625rem !important;
        font-size: 0.625rem !important;
    }
    
    .pricing-table td {
        padding: 0.625rem 0.625rem !important;
    }
    
    .model-name {
        font-size: 0.75rem !important;
    }
    
    .model-code {
        font-size: 0.625rem !important;
    }
    
    .price-value {
        font-size: 0.75rem !important;
    }
    
    .price-detail {
        font-size: 0.5625rem !important;
    }
    
    .meta-info {
        font-size: 0.5625rem !important;
    }
    
    .model-status {
        font-size: 0.5625rem !important;
        padding: 0.125rem 0.3125rem !important;
    }
    
    .api-doc-container {
        padding: 0 0.25rem !important;
    }
    
    .markdown-content {
        padding: 1rem !important;
        border-radius: 10px !important;
    }
    
    .markdown-content h1 {
        font-size: 1.25rem !important;
        margin-top: 1.25rem !important;
    }
    
    .markdown-content h2 {
        font-size: 1.125rem !important;
        margin-top: 1rem !important;
    }
    
    .markdown-content h3 {
        font-size: 1rem !important;
        margin-top: 0.875rem !important;
    }
    
    .markdown-content h4 {
        font-size: 0.9375rem !important;
        margin-top: 0.75rem !important;
    }
    
    .markdown-content p {
        font-size: 0.875rem !important;
    }
    
    .markdown-content code {
        font-size: 0.8125rem !important;
        padding: 0.15rem 0.375rem !important;
    }
    
    .markdown-content pre {
        padding: 0.625rem !important;
        font-size: 0.75rem !important;
    }
    
    .markdown-content pre code {
        font-size: 0.75rem !important;
    }
    
    .markdown-content table {
        font-size: 0.75rem !important;
        display: block !important;
        overflow-x: auto !important;
    }
    
    .markdown-content table th,
    .markdown-content table td {
        padding: 0.375rem !important;
        font-size: 0.75rem !important;
    }
    
    .markdown-content blockquote {
        padding-left: 0.75rem !important;
        margin: 0.75rem 0 !important;
    }
    
    .pricing-card {
        padding: 1rem !important;
    }
    
    .pricing-service-name {
        font-size: 1rem !important;
    }
    
    .pricing-amount {
        font-size: 1.25rem !important;
    }
    
    .pricing-type {
        font-size: 0.8125rem !important;
    }
    
    .pricing-quantity {
        font-size: 0.8125rem !important;
    }
}

/* ==================== Analytics Filters ==================== */
.analytics-filters {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 180px;
}

.filter-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-select {
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
}

.filter-select:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.filter-select:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-select option {
    background: var(--color-bg-secondary);
    color: var(--color-text);
    padding: 0.5rem;
}

@media (max-width: 768px) {
    .analytics-filters {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .filter-group {
        width: 100%;
        min-width: auto;
    }
    
    .filter-select {
        width: 100%;
    }
}

/* ==================== API Usage Charts Grid ==================== */
.api-usage-charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.api-chart-item {
    background: linear-gradient(145deg, rgba(17, 22, 50, 0.6) 0%, rgba(10, 14, 39, 0.8) 100%);
    border: 1px solid rgba(111, 241, 194, 0.12);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.api-chart-item:hover {
    border-color: rgba(111, 241, 194, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(111, 241, 194, 0.1);
}

.api-chart-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

.api-chart-item canvas {
    max-height: 200px;
}

@media (max-width: 1024px) {
    .api-usage-charts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .api-chart-item {
        padding: 0.875rem;
    }
    
    .api-chart-title {
        font-size: 0.8125rem;
        margin-bottom: 0.5rem;
    }
    
    .api-chart-item canvas {
        max-height: 180px;
    }
}

@media (max-width: 768px) {
    .api-usage-charts-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .api-chart-item {
        padding: 1rem;
    }
    
    .api-chart-item canvas {
        max-height: 200px;
    }
}