/**
 * ========================================
 * VAPI OUTBOUND CENTER - Unified Design System
 * ========================================
 * 
 * Professional, modern, dark theme
 * Consistent across all pages
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --bg-card-hover: #22222f;
    --bg-input: #0f0f15;
    
    /* Accent Colors */
    --accent-primary: #6366f1;      /* Indigo */
    --accent-secondary: #8b5cf6;    /* Purple */
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    /* Status Colors */
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Brand Colors */
    --strt-red: #F54729;
    --medio-blue: #667eea;
    
    /* Text */
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    /* Borders */
    --border-color: #27272a;
    --border-light: #3f3f46;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
}

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

/* ==================== Layout ==================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

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

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

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

.logo-section a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.nav-links {
    display: flex;
    gap: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

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

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

.nav-link-icon {
    font-size: 16px;
}

/* ==================== Page Header ==================== */
.page-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 15px;
}

/* ==================== Cards ==================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.2s;
}

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

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-body {
    /* Content goes here */
}

/* Clickable Card */
a.card {
    text-decoration: none;
    color: inherit;
    display: block;
}

a.card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

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

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 15px;
}

.btn-full {
    width: 100%;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
}

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

.btn-success:hover {
    background: #16a34a;
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==================== Badges ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.2);
    color: var(--accent-primary);
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.badge-warning {
    background: rgba(234, 179, 8, 0.2);
    color: var(--warning);
}

.badge-error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.badge-strt {
    background: rgba(245, 71, 41, 0.2);
    color: var(--strt-red);
}

/* ==================== Status Indicators ==================== */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
}

/* ==================== Grid System ==================== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

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

.grid-auto {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

@media (max-width: 768px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* ==================== Tables ==================== */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table th {
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

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

.table tr.active {
    background: rgba(99, 102, 241, 0.1);
    border-left: 3px solid var(--accent-primary);
}

/* ==================== Toast Notifications ==================== */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    color: white;
    font-weight: 500;
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    margin-top: var(--spacing-sm);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--error); }
.toast-warning { background: var(--warning); color: #000; }
.toast-info { background: var(--accent-primary); }

/* ==================== Loading States ==================== */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ==================== Utility Classes ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.hidden { display: none !important; }

/* ==================== Animations ==================== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--accent-primary); }
    50% { box-shadow: 0 0 20px var(--accent-primary); }
}

.animate-pulse { animation: pulse 2s infinite; }
.animate-glow { animation: glow 2s ease-in-out infinite; }

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .app-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .header-inner {
        flex-wrap: wrap;
    }
    
    .nav-links {
        width: 100%;
        overflow-x: auto;
        padding-top: var(--spacing-sm);
    }
    
    .nav-link {
        white-space: nowrap;
    }
}