/* =========================================================
 * Termback - base.css
 * Estilos base compartilhados
 * ========================================================= */

/* ---------------------------------------------------------
 * CSS Variables (Design Tokens)
 * --------------------------------------------------------- */
:root {
    /* Backgrounds */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-hover: #1c1c28;
    
    /* Borders */
    --border: #2a2a3a;
    --border-focus: #3b82f6;
    --border-glow: #3b82f6;
    
    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    
    /* Gradients */
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-green: linear-gradient(90deg, #10b981, #06b6d4);
    --gradient-yellow: linear-gradient(90deg, #f59e0b, #ef4444);
    --gradient-purple: linear-gradient(90deg, #3b82f6, #8b5cf6);
    
    /* Shadows */
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.15);
    --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
}

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------------------------------------------------------
 * Background Effects
 * --------------------------------------------------------- */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 50px,
            rgba(255,255,255,0.01) 50px,
            rgba(255,255,255,0.01) 51px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 50px,
            rgba(255,255,255,0.01) 50px,
            rgba(255,255,255,0.01) 51px
        );
    pointer-events: none;
    z-index: 0;
}

/* ---------------------------------------------------------
 * Typography
 * --------------------------------------------------------- */
.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

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

/* ---------------------------------------------------------
 * Logo
 * --------------------------------------------------------- */
.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 20px;
    color: white;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.logo-icon.lg {
    width: 72px;
    height: 72px;
    font-size: 28px;
    border-radius: 18px;
    box-shadow: 
        0 8px 30px rgba(59, 130, 246, 0.4),
        0 0 0 1px rgba(255,255,255,0.1) inset;
}

/* ---------------------------------------------------------
 * Buttons
 * --------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-blue);
    color: white;
    border: none;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    transform: translateY(-1px);
}

.btn svg {
    width: 18px;
    height: 18px;
}

/* ---------------------------------------------------------
 * Form Elements
 * --------------------------------------------------------- */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 16px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    transition: all var(--transition-fast);
}

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

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-input:hover:not(:focus) {
    border-color: rgba(59, 130, 246, 0.3);
}

/* ---------------------------------------------------------
 * Badges
 * --------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge svg {
    width: 14px;
    height: 14px;
}

.badge-ok {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-alert {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-yellow);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

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

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* ---------------------------------------------------------
 * Cards
 * --------------------------------------------------------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

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

/* ---------------------------------------------------------
 * Spinner / Loading
 * --------------------------------------------------------- */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner.sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner.white {
    border-color: rgba(255,255,255,0.3);
    border-top-color: white;
}

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

.loading {
    opacity: 0.5;
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* ---------------------------------------------------------
 * Utilities
 * --------------------------------------------------------- */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }