/**
 * WPP Gateway Manager - Estilos
 * @author Unbox (https://unboxbr.com.br)
 * @version 1.0.0
 */

/* ==========================================
   CSS Variables / Design Tokens
   ========================================== */
:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a24;
    --color-bg-card: #151520;
    --color-bg-hover: #1e1e2d;

    /* Accent Colors */
    --color-primary: #25D366;
    --color-primary-hover: #20bd5a;
    --color-primary-glow: rgba(37, 211, 102, 0.3);
    --color-secondary: #128C7E;
    --color-accent: #075E54;

    /* Status Colors */
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    /* Borders */
    --color-border: #27272a;
    --color-border-light: #3f3f46;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    --gradient-dark: linear-gradient(135deg, #12121a 0%, #0a0a0f 100%);
    --gradient-card: linear-gradient(180deg, rgba(37, 211, 102, 0.05) 0%, transparent 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px var(--color-primary-glow);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

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

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--gradient-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

code {
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.9em;
    background: var(--color-bg-tertiary);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    color: var(--color-primary);
}

pre {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    border: 1px solid var(--color-border);
}

pre code {
    background: none;
    padding: 0;
}

/* ==========================================
   Layout Components
   ========================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
.header {
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    color: var(--color-text-primary);
    text-decoration: none;
}

.logo-img {
    height: 28px !important;
    width: auto;
}

.logo-subtitle {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-secondary);
    line-height: 1;
    margin-top: 4px;
    margin-left: 2px;
    display: block;
    letter-spacing: 0.2px;
}

.logo:hover .logo-subtitle {
    color: var(--color-primary);
    opacity: 1;
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.version-badge {
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.author-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

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

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* Footer */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-content p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.footer-tech {
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

/* ==========================================
   Cards
   ========================================== */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    border-color: var(--color-border-light);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    background: var(--gradient-card);
}

.card-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.card-title i {
    color: var(--color-primary);
}

.card-body {
    padding: var(--spacing-lg);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero-section {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-xl);
}

.hero-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.hero-title i {
    color: var(--color-primary);
}

.hero-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   Stats Section
   ========================================== */
.stats-section {
    margin-bottom: var(--spacing-xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
}

.stat-primary .stat-icon {
    background: rgba(37, 211, 102, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(37, 211, 102, 0.2);
}

.stat-success .stat-icon {
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.stat-warning .stat-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.stat-info .stat-icon {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-info);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.stat-details {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1.2;
}

.stat-primary .stat-value {
    color: var(--color-primary);
}

.stat-success .stat-value {
    color: var(--color-success);
}

.stat-warning .stat-value {
    color: var(--color-warning);
}

.stat-info .stat-value {
    color: var(--color-info);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ==========================================
   Forms
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    padding-left: 2.75rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

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

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

.input-group {
    position: relative;
    display: flex;
    gap: var(--spacing-sm);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    z-index: 1;
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-error {
    color: var(--color-error);
}

.form-row {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

.flex-grow {
    flex-grow: 2 !important;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
}

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

.btn-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
    color: white;
}

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

.btn-success:hover:not(:disabled) {
    background: #16a34a;
    color: white;
}

.btn-danger {
    background: var(--color-error);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    color: white;
}

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

.btn-outline-primary:hover:not(:disabled) {
    background: var(--color-primary);
    color: white;
}

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

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

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

.btn-outline-danger:hover:not(:disabled) {
    background: var(--color-error);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: 0.5rem;
}

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

/* ==========================================
   Badges
   ========================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--color-primary-glow);
    color: var(--color-primary);
}

/* ==========================================
   Instance Cards
   ========================================== */
.instances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.instance-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.instance-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 20px rgba(37, 211, 102, 0.1);
}

.instance-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.instance-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
    flex-shrink: 0;
}

.instance-info {
    flex: 1;
    min-width: 0;
}

.instance-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.instance-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

.status-connected,
.status-pill.status-connected {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
}

.status-qr_code,
.status-pill.status-qr_code {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.status-reconnecting,
.status-pill.status-reconnecting {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-info);
}

.status-initializing,
.status-pill.status-initializing {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-info);
}

.status-disconnected,
.status-pill.status-disconnected {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
}

.instance-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ==========================================
   Empty State
   ========================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
}

.empty-icon {
    font-size: 4rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-text-secondary);
}

/* ==========================================
   API Documentation
   ========================================== */
.api-docs {
    display: none;
}

.api-docs.show {
    display: block;
}

.api-key-section {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.api-key-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.api-key-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.api-key-display code {
    flex: 1;
    background: none;
    padding: 0;
    font-size: var(--font-size-sm);
    word-break: break-all;
}

.api-note {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-warning);
}

.api-endpoints h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.endpoint {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.endpoint-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.endpoint p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.method {
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.method.get {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-info);
}

.method.post {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
}

.method.delete {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
}

.code-block {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-sm);
}

/* ==========================================
   Instance View Page
   ========================================== */
.instance-view {
    max-width: 800px;
}

.instance-header-section {
    margin-bottom: var(--spacing-xl);
}

.instance-header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.instance-avatar {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    box-shadow: var(--shadow-glow);
}

.instance-details {
    flex: 1;
}

.instance-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.instance-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.connected-since {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* QR Code Section */
.qr-body {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.qr-container {
    flex-shrink: 0;
}

.qr-image {
    width: 280px;
    height: 280px;
    border-radius: var(--radius-lg);
    border: 4px solid var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.qr-instructions {
    flex: 1;
    min-width: 250px;
}

.qr-instructions h4 {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.qr-instructions ol {
    padding-left: var(--spacing-lg);
    color: var(--color-text-secondary);
}

.qr-instructions li {
    margin-bottom: var(--spacing-sm);
}

.qr-note {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Success Section */
.success-body {
    text-align: center;
    padding: var(--spacing-2xl);
}

.success-icon {
    font-size: 5rem;
    color: var(--color-success);
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s infinite;
}

.success-body h2 {
    font-size: var(--font-size-2xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.success-body p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.connected-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Loading Section */
.loading-body {
    text-align: center;
    padding: var(--spacing-2xl);
}

.loading-spinner {
    margin-bottom: var(--spacing-xl);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

.loading-body h2 {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.loading-body p {
    color: var(--color-text-secondary);
}

.loading-note {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

/* Test Form */
.test-section .form-row {
    align-items: flex-end;
}

.test-result {
    margin-top: var(--spacing-md);
}

.loading-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
}

/* Instance Actions */
.instance-actions-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* ==========================================
   Alerts
   ========================================== */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ==========================================
   Animations
   ========================================== */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.spin {
    animation: spin 1s linear infinite;
}

/* ==========================================
   Responsive Design
   ========================================== */

/* Tablet */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }

    .header-content {
        padding: 0 var(--spacing-md);
    }

    .logo-text {
        display: none;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }

    .stat-value {
        font-size: var(--font-size-xl);
    }

    .instances-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .input-group {
        flex-direction: column;
    }

    .input-group .btn {
        width: 100%;
    }

    .qr-body {
        flex-direction: column;
        align-items: center;
    }

    .qr-image {
        width: 250px;
        height: 250px;
    }

    .instance-header-content {
        flex-direction: column;
        text-align: center;
    }

    .instance-meta {
        justify-content: center;
    }

    .instance-actions-section {
        flex-direction: column;
    }

    .instance-actions-section .btn {
        width: 100%;
    }

    .connected-actions {
        flex-direction: column;
        width: 100%;
    }

    .connected-actions .btn {
        width: 100%;
    }

    .api-key-display {
        flex-direction: column;
        align-items: stretch;
    }

    .endpoint-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .header-right {
        gap: var(--spacing-sm);
    }

    .version-badge {
        display: none;
    }
}

/* Print Styles */
@media print {

    .header,
    .footer,
    .btn,
    .api-section {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-border: #ffffff;
        --color-text-secondary: #ffffff;
    }
}