/**
 * ExpoLead SaaS - Core Reusable Component Library
 * Modular Vanilla CSS - White / Light Enterprise Theme
 */

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1.4;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled, .btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, hsl(var(--color-primary-h), var(--color-primary-s), 50%) 100%);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, hsl(var(--color-primary-h), var(--color-primary-s), 42%) 100%);
    box-shadow: 0 4px 14px var(--primary-glow);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-card);
    color: #1E293B;
}

.btn-secondary:hover {
    background-color: #E2E8F0;
    border-color: #CBD5E1;
    color: #0F172A;
}

.btn-outline {
    background-color: #FFFFFF;
    border-color: #CBD5E1;
    color: #334155;
}

.btn-outline:hover {
    background-color: #F8FAFC;
    border-color: #94A3B8;
    color: #0F172A;
}

.btn-success {
    background-color: var(--color-success);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(5, 150, 105, 0.25);
}

.btn-success:hover {
    background-color: #047857;
    color: #ffffff;
}

.btn-danger {
    background-color: var(--color-danger);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.25);
}

.btn-danger:hover {
    background-color: #B91C1C;
    color: #ffffff;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Form Controls
   ========================================================================== */
.form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
}

.form-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    font-weight: 600;
    color: #1E293B;
    margin-bottom: 0.4rem;
}

.form-label .required {
    color: var(--color-danger);
    margin-left: 0.2rem;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-primary);
    background-color: #FFFFFF;
    border: 1px solid #CBD5E1;
    border-radius: var(--radius-sm);
    outline: none;
    transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    background-color: #FFFFFF;
}

.form-input::placeholder, .form-textarea::placeholder {
    color: #94A3B8;
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.input-hint, .form-hint {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.form-input.is-invalid {
    border-color: var(--color-danger);
}

.error-text {
    font-size: 0.8125rem;
    color: var(--color-danger);
    margin-top: 0.35rem;
}

/* ==========================================================================
   Cards & Surfaces
   ========================================================================== */
.card {
    background-color: #FFFFFF;
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.glass-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #FFFFFF;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    padding: 1.5rem;
    background-color: #FFFFFF;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
    background-color: #F8FAFC;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ==========================================================================
   Badges & Status Pills
   ========================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.badge-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid var(--color-danger-border);
}

.badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
    border: 1px solid var(--color-warning-border);
}

.badge-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
    border: 1px solid var(--color-info-border);
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid #C7D2FE;
}

/* ==========================================================================
   Alerts & Notifications
   ========================================================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
}

.alert-success {
    background-color: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
    color: #065F46;
}

.alert-danger {
    background-color: var(--color-danger-bg);
    border: 1px solid var(--color-danger-border);
    color: #991B1B;
}

.alert-warning {
    background-color: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    color: #92400E;
}

.alert-info {
    background-color: var(--color-info-bg);
    border: 1px solid var(--color-info-border);
    color: #1E40AF;
}

/* ==========================================================================
   Data Tables
   ========================================================================== */
.table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    background-color: #FFFFFF;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9375rem;
}

.table th {
    background-color: #F8FAFC;
    color: #475569;
    font-weight: 600;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid #E2E8F0;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid #F1F5F9;
    color: var(--text-primary);
}

.table tbody tr:hover {
    background-color: #F8FAFC;
}

/* ==========================================================================
   Spinners & Animations
   ========================================================================== */
.spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid rgba(79, 70, 229, 0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

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

.pulse-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-success);
    box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(5, 150, 105, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(5, 150, 105, 0); }
}