/**
 * AgentX UI Components
 * Reusable component library for consistent design
 */

/* ========================================
   Form Inputs
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-text-primary);
    font-size: 0.875rem;
}

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

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text-primary);
    transition: all 0.2s;
    font-family: inherit;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.6;
}

/* Input States */
.form-input.is-valid {
    border-color: var(--color-success);
}

.form-input.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1);
}

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

.form-input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-input:disabled {
    background: var(--color-bg-alt);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Textarea */
.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

/* Helper Text */
.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.813rem;
    color: var(--color-text-secondary);
}

.form-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.813rem;
    color: var(--color-error);
}

.form-success {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.813rem;
    color: var(--color-success);
}

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

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

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.card-body {
    color: var(--color-text-primary);
}

.card-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* Agent Card Variant */
.agent-card {
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.agent-card-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    object-fit: cover;
}

.agent-card-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.agent-card-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.agent-card-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.agent-card-trial {
    font-size: 0.813rem;
    color: var(--color-text-secondary);
}

/* ========================================
   Badges
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.813rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    white-space: nowrap;
}

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

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

.badge-success {
    background: rgba(22, 163, 74, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(234, 88, 12, 0.1);
    color: var(--color-warning);
}

.badge-error {
    background: rgba(220, 38, 38, 0.1);
    color: var(--color-error);
}

.badge-neutral {
    background: var(--color-bg-alt);
    color: var(--color-text-secondary);
}

/* Status Badge Variants */
.badge-trialing {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-accent);
}

.badge-active {
    background: rgba(22, 163, 74, 0.1);
    color: var(--color-success);
}

.badge-canceled {
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-text-secondary);
}

.badge-past-due {
    background: rgba(234, 88, 12, 0.1);
    color: var(--color-warning);
}

.badge-paused {
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-text-secondary);
}

/* ========================================
   Alerts
   ======================================== */
.alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
}

.alert-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.alert-message {
    font-size: 0.938rem;
}

.alert-success {
    background: rgba(22, 163, 74, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background: rgba(220, 38, 38, 0.1);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-warning {
    background: rgba(234, 88, 12, 0.1);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-info {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Dismissible Alert */
.alert-dismissible {
    position: relative;
    padding-right: calc(var(--spacing-xl) + 24px);
}

.alert-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

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

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity 0.2s;
}

.modal-overlay.is-visible {
    opacity: 1;
}

.modal {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    transform: scale(0.9);
    transition: transform 0.2s;
}

.modal-overlay.is-visible .modal {
    transform: scale(1);
}

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background 0.2s;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--color-bg-alt);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* ========================================
   Loading Spinner
   ======================================== */
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

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

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.loading-text {
    color: var(--color-text-secondary);
    font-size: 0.938rem;
}

/* ========================================
   Button Variants (Extended)
   ======================================== */
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-outline:hover {
    background: var(--color-primary);
    color: white !important;
    border-color: var(--color-primary);
}

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

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

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

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

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

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.063rem;
}

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

.btn-block {
    display: block;
    width: 100%;
}

.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.grid-cols-1 {
    grid-template-columns: 1fr;
}

/* Mobile First - columns stack on mobile */
@media (min-width: 640px) {
    .grid-cols-sm-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-cols-sm-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .grid-cols-md-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-cols-md-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    .grid-cols-md-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-cols-lg-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    .grid-cols-lg-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ========================================
   Accessibility Helpers
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus Styles for Keyboard Navigation */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Touch Target Minimum Size (44x44px for accessibility) */
.btn,
.form-input,
.form-select,
.nav-link {
    min-height: 44px;
    min-width: 44px;
}