/* ============================================
   KI BARATO CHECKOUT - COMPONENTS
   ============================================ */

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary-light);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-md), 0 0 20px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(var(--color-primary-rgb), 0.4);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: var(--gradient-success);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-success);
}

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

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

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

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-lg);
}

/* Loading state */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-primary.btn-loading::after,
.btn-success.btn-loading::after {
    border-top-color: var(--text-primary);
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-lg);
}

.card-glass {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
}

.card-glow {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-selectable {
    cursor: pointer;
    transition: all var(--transition-base);
}

.card-selectable:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.card-selectable.selected {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.1);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(var(--color-primary-rgb), 0.2);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-4);
}

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

.form-input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:hover {
    border-color: var(--border-color-hover);
}

.form-input:focus {
    border-color: var(--color-primary);
    background: var(--bg-glass-hover);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}

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

.form-input.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-input.success {
    border-color: var(--color-success);
}

.form-error {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-xs);
    color: var(--color-error);
}

.form-hint {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

@media (max-width: 400px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Input with icon */
.input-wrapper {
    position: relative;
}

.input-wrapper .form-input {
    padding-left: 44px;
}

.input-icon {
    position: absolute;
    left: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.input-wrapper .form-input:focus+.input-icon {
    color: var(--color-primary);
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-3) center;
    background-size: 18px;
    padding-right: 44px;
}

/* ============================================
   PROGRESS BAR
   ============================================ */

.progress-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-8);
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 40px;
    right: 40px;
    height: 2px;
    background: var(--border-color);
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 40px;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-slow);
    width: var(--progress, 0%);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    position: relative;
    z-index: 1;
}

.progress-step-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.progress-step-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-align: center;
    max-width: 80px;
}

.progress-step.active .progress-step-number {
    background: var(--gradient-primary);
    border-color: var(--color-primary);
    color: var(--text-primary);
    box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.4);
}

.progress-step.active .progress-step-label {
    color: var(--text-primary);
}

.progress-step.completed .progress-step-number {
    background: var(--color-success);
    border-color: var(--color-success);
    color: var(--text-primary);
}

.progress-step.completed .progress-step-number::after {
    content: '✓';
}

.progress-step.completed .progress-step-number span {
    display: none;
}

/* ============================================
   BADGES
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
}

.badge-primary {
    background: rgba(var(--color-primary-rgb), 0.2);
    color: var(--color-primary-light);
}

.badge-success {
    background: rgba(94, 191, 38, 0.2);
    color: var(--color-success-light);
}

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

.badge-error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--color-error-light);
}

/* ============================================
   TOAST / NOTIFICATIONS
   ============================================ */

.toast-container {
    position: fixed;
    top: var(--spacing-4);
    right: var(--spacing-4);
    left: var(--spacing-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    pointer-events: auto;
    animation: slideIn var(--transition-base) ease-out;
    max-width: 400px;
    margin-left: auto;
}

.toast-success {
    border-color: var(--color-success);
}

.toast-error {
    border-color: var(--color-error);
}

.toast-warning {
    border-color: var(--color-warning);
}

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

.toast-success .toast-icon {
    color: var(--color-success);
}

.toast-error .toast-icon {
    color: var(--color-error);
}

.toast-warning .toast-icon {
    color: var(--color-warning);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

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

.toast-close {
    flex-shrink: 0;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* ============================================
   LOADING / SKELETON
   ============================================ */

.skeleton {
    background: linear-gradient(90deg,
            var(--bg-glass) 25%,
            var(--bg-glass-hover) 50%,
            var(--bg-glass) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    width: 100%;
}

.skeleton-circle {
    border-radius: var(--radius-full);
}

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    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;
}

/* ============================================
   DIVIDER
   ============================================ */

.divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin: var(--spacing-6) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.divider-text {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   ICONS (Inline SVG styles)
   ============================================ */

.icon {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

.icon-sm {
    width: 18px;
    height: 18px;
}

.icon-lg {
    width: 32px;
    height: 32px;
}

.icon-xl {
    width: 48px;
    height: 48px;
}