/* ==========================================================================
   Donation Block Premium Styles
   ========================================================================== */

:root {
    /* Color Palette - Variables Editables en tema hijo o Customizer si se desea */
    --db-brand: #E63946;          /* Rojo destacado */
    --db-brand-hover: #D62828;
    --db-brand-soft: rgba(230, 57, 70, 0.06);
    --db-secondary: #1D3557;      /* Azul muy oscuro, elegancia corporativa */
    --db-bg-soft: #F1FAEE;        /* Gris/Verde super sutil de fondo de elementos */
    --db-surface: #FFFFFF;
    
    /* Typography & Text Colors */
    --db-text-main: #2b2b2b;
    --db-text-muted: #6c757d;
    --db-font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    
    /* Borders & Radius */
    --db-border-color: #E2E8F0;
    --db-border-focus: #A0AEC0;
    --db-radius-sm: 8px;
    --db-radius-md: 14px;
    --db-radius-lg: 20px;
    
    /* Shadows - Premium Elevation */
    --db-shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
    --db-shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    --db-shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.08);
    --db-shadow-focus: 0 0 0 3px rgba(230, 57, 70, 0.2);
    
    /* Transitions */
    --db-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Wrapper */
.db-premium-container {
    max-width: 580px;
    margin: 40px auto;
    background: var(--db-surface);
    border: 1px solid var(--db-border-color);
    border-radius: var(--db-radius-lg);
    font-family: var(--db-font-family);
    color: var(--db-text-main);
    box-shadow: var(--db-shadow-md);
    position: relative;
    overflow: hidden;
    transition: var(--db-transition);
}

.db-premium-container:hover {
    box-shadow: var(--db-shadow-lg);
}

.db-premium-container * {
    box-sizing: border-box;
    outline: none;
}

/* Header & Toggles */
.db-header {
    padding: 30px 40px 10px;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.5) 0%, rgba(255,255,255,0) 100%);
    border-bottom: 1px solid transparent;
}

.db-period-toggle {
    display: flex;
    background: var(--db-bg-soft);
    padding: 6px;
    border-radius: var(--db-radius-md);
}

.db-toggle-btn {
    flex: 1;
    padding: 12px;
    background: transparent;
    border: none;
    border-radius: var(--db-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--db-text-muted);
    cursor: pointer;
    transition: var(--db-transition);
}

.db-toggle-btn.active {
    background: var(--db-surface);
    color: var(--db-secondary);
    box-shadow: var(--db-shadow-sm);
}

.db-toggle-btn:focus-visible {
    box-shadow: var(--db-shadow-focus);
}

/* Steps Body */
.db-body {
    padding: 20px 40px 40px;
    position: relative;
    min-height: 380px; /* Evita saltos de altura bruscos */
}

.db-step {
    animation: dbFadeInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes dbFadeInUp {
    0% { opacity: 0; transform: translateY(15px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Grid de Importes */
.db-amounts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}
@media(min-width: 480px) {
    .db-amounts-grid { grid-template-columns: repeat(4, 1fr); }
}

.db-amount-btn {
    padding: 18px 5px;
    background: var(--db-surface);
    border: 1.5px solid var(--db-border-color);
    border-radius: var(--db-radius-md);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--db-secondary);
    cursor: pointer;
    transition: var(--db-transition);
    text-align: center;
}

.db-amount-btn.active {
    border-color: var(--db-brand);
    color: var(--db-brand);
    background: var(--db-brand-soft);
}

.db-amount-btn:hover:not(.active) {
    border-color: var(--db-border-focus);
    transform: translateY(-2px);
    box-shadow: var(--db-shadow-sm);
}

/* Input Manual */
.db-custom-amount-wrapper {
    margin-bottom: 24px;
    animation: dbFadeInUp 0.3s;
}

.db-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.db-currency-symbol {
    position: absolute;
    left: 20px;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--db-secondary);
}

.db-input-group input {
    width: 100%;
    padding: 16px 20px 16px 45px;
    border: 1.5px solid var(--db-brand);
    border-radius: var(--db-radius-md);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--db-brand);
    transition: var(--db-transition);
    background: var(--db-brand-soft);
}
.db-input-group input:focus {
    box-shadow: var(--db-shadow-focus);
    background: var(--db-surface);
}

/* Mensaje de Impacto */
.db-impact-message {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #F8FAFC;
    padding: 16px 20px;
    border-radius: var(--db-radius-md);
    margin-bottom: 30px;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--db-secondary);
}

.db-impact-icon {
    color: var(--db-brand);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Botones Primary & Secondary */
.db-btn-primary, .db-btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 24px;
    border: none;
    border-radius: var(--db-radius-sm);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--db-transition);
    text-align: center;
    width: 100%;
}

.db-btn-primary {
    background: var(--db-brand);
    color: var(--db-surface);
}

.db-btn-primary:hover {
    background: var(--db-brand-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
}

.db-btn-primary:active { transform: translateY(1px); }

.db-btn-secondary {
    background: var(--db-bg-soft);
    color: var(--db-secondary);
    border: 1px solid var(--db-border-color);
}
.db-btn-secondary:hover {
    background: var(--db-border-color);
}

.db-arrow { width: 18px; height: 18px; }

/* Formularios Generales */
.db-step-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--db-secondary);
    margin: 0 0 24px;
    text-align: center;
}

.db-row {
    display: flex;
    flex-wrap: wrap; /* Para responsive */
    gap: 16px;
    margin-bottom: 16px;
}

.db-col {
    flex: 1;
    min-width: 0; /* Previene overflows */
    display: flex;
    flex-direction: column;
}

.db-col label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--db-text-muted);
    margin-bottom: 6px;
}

.db-input {
    padding: 14px 16px;
    border: 1.5px solid var(--db-border-color);
    border-radius: var(--db-radius-sm);
    font-size: 1rem;
    color: var(--db-secondary);
    background: var(--db-surface);
    transition: var(--db-transition);
}

.db-input:focus {
    border-color: var(--db-secondary);
    box-shadow: 0 0 0 3px rgba(29, 53, 87, 0.1);
}

.db-error-alert {
    padding: 12px 16px;
    background: #FFF5F5;
    border-left: 4px solid var(--db-brand);
    color: #C53030;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 4px;
    margin: 20px 0;
}

.db-actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}
.db-actions .db-btn-secondary { flex: 1; }
.db-actions .db-btn-primary { flex: 2; }

/* Selector Métodos de Pago */
.db-payment-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.db-method-card {
    display: flex;
    align-items: center;
    padding: 18px 20px;
    border: 1.5px solid var(--db-border-color);
    border-radius: var(--db-radius-sm);
    cursor: pointer;
    transition: var(--db-transition);
}

.db-method-card input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--db-border-focus);
    border-radius: 50%;
    margin-right: 16px;
    outline: none;
    position: relative;
    cursor: pointer;
}

.db-method-card input[type="radio"]:checked {
    border-color: var(--db-brand);
}

.db-method-card input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 10px; height: 10px;
    background: var(--db-brand);
    border-radius: 50%;
}

.db-method-card:hover, .db-method-card:has(input:checked) {
    border-color: var(--db-brand);
    background: var(--db-brand-soft);
}

.db-method-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.db-method-title {
    font-weight: 600;
    color: var(--db-secondary);
}

.db-method-icons {
    color: var(--db-border-focus);
}
.db-method-card:has(input:checked) .db-method-icons {
    color: var(--db-brand);
}

.db-sepa-panel {
    background: #F8FAFC;
    padding: 24px;
    border-radius: var(--db-radius-sm);
    margin-bottom: 24px;
    animation: dbFadeInUp 0.3s;
}

.db-sepa-panel label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--db-text-muted);
    margin-bottom: 8px;
}

.db-sepa-note {
    font-size: 0.8rem;
    color: var(--db-text-muted);
    margin-top: 10px;
    margin-bottom: 0;
}

/* Pantalla Final/Éxito */
.db-success-view {
    text-align: center;
    padding: 40px 10px;
    animation: dbSuccessAnim 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes dbSuccessAnim {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.db-success-icon {
    margin-bottom: 20px;
}

.db-success-view h3 {
    font-size: 1.8rem;
    color: var(--db-secondary);
    margin-bottom: 12px;
}

.db-success-view p {
    color: var(--db-text-muted);
    line-height: 1.6;
    font-size: 1.1rem;
}

/* Loader / Overlay */
.db-loader-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border-radius: var(--db-radius-lg);
}

.db-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--db-border-color);
    border-top-color: var(--db-brand);
    border-radius: 50%;
    animation: dbSpin 0.8s linear infinite;
}

@keyframes dbSpin {
    100% { transform: rotate(360deg); }
}

/* Accessibility Utilities */
.screen-reader-text {
    border: 0; clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%); height: 1px; margin: -1px;
    overflow: hidden; padding: 0; position: absolute;
    width: 1px; word-wrap: normal !important;
}

/* Responsive */
@media (max-width: 600px) {
    .db-premium-container { margin: 20px auto; border-radius: 0; border: none; border-bottom: 1px solid var(--db-border-color); }
    .db-header { padding: 24px 24px 10px; }
    .db-body { padding: 16px 24px 32px; }
    .db-col { min-width: 100%; } /* Fuerza 1 columna en movil */
    .db-actions { flex-direction: column-reverse; gap: 12px; }
    .db-actions .db-btn-primary, .db-actions .db-btn-secondary { width: 100%; }
}