/* ========================================================================
   Components - Buttons, Alerts, Forms, Cards
   ======================================================================== */

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

/* Button Variants */
.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--gray-300);
    border-color: var(--gray-300);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--secondary-light);
    border-color: var(--secondary-light);
}

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

.btn-success:hover:not(:disabled) {
    background-color: #27ae60;
    border-color: #27ae60;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #c0392b;
    border-color: #c0392b;
}

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

.btn-warning:hover:not(:disabled) {
    background-color: #e67e22;
    border-color: #e67e22;
}

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

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

.btn-outline-secondary {
    background-color: transparent;
    color: var(--secondary);
    border-color: var(--secondary);
}

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

.btn-link {
    background-color: transparent;
    color: var(--primary);
    border-color: transparent;
    text-decoration: underline;
}

.btn-link:hover:not(:disabled) {
    color: var(--primary-dark);
}

/* ========== ALERTS / TOASTS ========== */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius);
    border-left: 4px solid;
    margin-bottom: var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    box-shadow: var(--shadow);
}

.alert-success {
    background-color: var(--success-light);
    border-left-color: var(--success);
    color: #155724;
}

.alert-danger {
    background-color: var(--danger-light);
    border-left-color: var(--danger);
    color: #721c24;
}

.alert-warning {
    background-color: var(--warning-light);
    border-left-color: var(--warning);
    color: #856404;
}

.alert-info {
    background-color: var(--info-light);
    border-left-color: var(--info);
    color: #004085;
}

.alert-dismissible {
    padding-right: var(--space-10);
    position: relative;
}

.alert .close-btn {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: none;
    border: none;
    font-size: var(--text-xl);
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    transition: opacity var(--transition);
}

.alert .close-btn:hover {
    opacity: 1;
}

/* Toast Notifications */
/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 90px; /* Below navbar */
    right: var(--space-6);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 420px;
    pointer-events: none; /* Allow clicks through container */
}

.toast {
    background-color: var(--white);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(47, 65, 86, 0.15), 0 2px 8px rgba(47, 65, 86, 0.08);
    border-left: 5px solid;
    animation: slideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    pointer-events: auto; /* Re-enable clicks on toast */
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.98);
}

@keyframes slideIn {
    from {
        transform: translateX(120%) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
}

.toast::before {
    content: '';
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 12px;
}

/* Success Toast */
.toast-success {
    border-left-color: #10b981;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.toast-success::before {
    content: '\f00c';
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

/* Danger Toast */
.toast-danger {
    border-left-color: #ef4444;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.toast-danger::before {
    content: '\f00d';
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

/* Warning Toast */
.toast-warning {
    border-left-color: #f59e0b;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.toast-warning::before {
    content: '\f071';
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

/* Info Toast */
.toast-info {
    border-left-color: #3b82f6;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.toast-info::before {
    content: '\f05a';
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
}

/* Toast Content */
.toast-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.toast-title {
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    color: var(--text-primary);
    line-height: 1.4;
}

.toast-message {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Close Button */
.toast .close-btn {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: none;
    border: none;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    opacity: 0.6;
    transition: all var(--transition);
    border-radius: var(--radius-sm);
    font-size: 14px;
    padding: 0;
}

.toast .close-btn:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}

/* Toast exit animation */
.toast.toast-exit {
    animation: slideOut 0.3s ease-in forwards;
}

@keyframes slideOut {
    from {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
    to {
        transform: translateX(120%) scale(0.9);
        opacity: 0;
    }
}

/* Progress bar at bottom */
.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    overflow: hidden;
}

.toast-progress::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 100%;
    background: currentColor;
    opacity: 0.6;
    animation: progress 3s linear;
}

@keyframes progress {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.toast-success .toast-progress { color: #10b981; }
.toast-danger .toast-progress { color: #ef4444; }
.toast-warning .toast-progress { color: #f59e0b; }
.toast-info .toast-progress { color: #3b82f6; }

/* Mobile responsive */
@media (max-width: 768px) {
    .toast-container {
        right: var(--space-4);
        left: var(--space-4);
        max-width: none;
    }
}

/* ========== FORMS ========== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    font-size: var(--text-sm);
}

.form-label-required::after {
    content: ' *';
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: var(--space-3);
    font-size: var(--text-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--white);
    transition: all var(--transition);
}

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

.form-control:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
    opacity: 0.7;
}

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

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--danger-light);
}

.form-control.is-valid {
    border-color: var(--success);
}

.form-control.is-valid:focus {
    box-shadow: 0 0 0 3px var(--success-light);
}

.form-text {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.invalid-feedback {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--danger);
}

.valid-feedback {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--success);
}

/* Select */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-8);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.form-check-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
    font-size: var(--text-sm);
}

/* ========== CARDS ========== */
.card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--gray-100);
}

.card-header h3, .card-header h4, .card-header h5 {
    margin-bottom: 0;
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-color);
    background-color: var(--gray-100);
}

/* ========== BADGES ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
}

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

.badge-success {
    background-color: var(--success-light);
    color: #155724;
}

.badge-danger {
    background-color: var(--danger-light);
    color: #721c24;
}

.badge-warning {
    background-color: var(--warning-light);
    color: #856404;
}

.badge-info {
    background-color: var(--info-light);
    color: #004085;
}

.badge-secondary {
    background-color: var(--gray-200);
    color: var(--gray-700);
}

/* ========== LOADING SPINNER ========== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}