/* ================================
   PersonalBot - Base Styles
   ================================ */

:root {
    /* Colors - Warm Fitness Theme */
    --primary: #ff6b35;
    --primary-dark: #e55a2b;
    --primary-light: #ff8c5a;
    --secondary: #f7931e;
    --accent: #ffd23f;
    
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;
    
    --bg-dark: #1a1512;
    --bg-darker: #120f0c;
    --bg-card: #2a2320;
    --bg-card-hover: #3a3230;
    
    --text: #ffffff;
    --text-muted: #b8a89a;
    --text-light: #e0d5cc;
    
    --border: rgba(255, 107, 53, 0.15);
    --border-light: rgba(255, 255, 255, 0.05);
    
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(255, 107, 53, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: var(--text);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

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

.btn-danger-outline {
    color: var(--danger);
    border: 2px solid var(--danger);
    background: transparent;
}

.btn-danger-outline:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.card-header h3 {
    font-size: 1.1rem;
}

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

/* Forms */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-darker);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

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

.form-group small {
    display: block;
    margin-top: var(--space-xs);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.form-section {
    margin-bottom: var(--space-2xl);
}

.form-section h4 {
    margin-bottom: var(--space-lg);
    color: var(--primary-light);
    font-size: 1rem;
}

.form-actions {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
}

/* Alerts */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

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

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

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #f59e0b;
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #3b82f6;
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary-light);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

.tag-active {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

/* Status */
.status-badge {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

.status-ativa {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.status-pendente {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.status-cancelada {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
}

.empty-state .empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
}

.empty-state h4 {
    margin-bottom: var(--space-sm);
    color: var(--text);
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

/* Tables */
.simple-table {
    width: 100%;
    border-collapse: collapse;
}

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

.simple-table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

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

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
}