/* ONIX SHOP - CHECKOUT STYLES (DISEÑO APROBADO)
   Extraído para integración con ONIX ENGINE
*/

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f8f8;
    --bg-tertiary: #f0f0f0;
    --text-primary: #111111;
    --text-secondary: #555555;
    --text-muted: #888888;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --border: #e0e0e0;
    --shadow: rgba(0,0,0,0.08);
    --transition: 0.3s ease;
}

[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border: #2a2a2a;
    --shadow: rgba(0,0,0,0.3);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ===== HEADER ===== */
.checkout-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 4%;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
}

.back-btn:hover {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-primary);
}

.back-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; }

.logo { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--text-primary); }

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--text-primary);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.8rem;
}

.logo-text { font-family: 'Bebas Neue', sans-serif; font-size: 1.8rem; letter-spacing: 0.2em; }

.secure-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--success);
    font-size: 0.85rem;
    font-weight: 500;
}

.secure-badge svg { width: 18px; height: 18px; stroke: currentColor; fill: none; }

/* ===== PROGRESS ===== */
.progress-bar {
    background: var(--bg-primary);
    padding: 1.5rem 4%;
    border-bottom: 1px solid var(--border);
}

.progress-inner {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    position: relative;
}

.progress-inner::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: var(--border);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition);
}

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

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

.step-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

/* ===== MAIN LAYOUT ===== */
.checkout-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 4%;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2rem;
    align-items: start;
}

/* ===== FORM SECTIONS ===== */
.checkout-form { display: flex; flex-direction: column; gap: 1.5rem; }

.form-section {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    padding: 1.5rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.section-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.section-icon svg { width: 20px; height: 20px; stroke: var(--text-primary); fill: none; }

.section-title { font-family: 'Bebas Neue', sans-serif; font-size: 1.2rem; letter-spacing: 0.1em; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid.full { grid-template-columns: 1fr; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }

.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.form-group label .required { color: var(--error); }

.form-group input,
.form-group select {
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition);
    appearance: none;
    -webkit-appearance: none;
    border-radius: 0;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group input:focus,
.form-group select:focus { outline: none; border-color: var(--text-primary); }

.form-group input.error { border-color: var(--error); background: rgba(239,68,68,0.03); }

.error-text { font-size: 0.75rem; color: var(--error); display: none; font-weight: 500; }
.form-group input.error ~ .error-text { display: block; }
.form-group input::placeholder { color: var(--text-muted); }

/* ===== SHIPPING OPTIONS ===== */
.shipping-options { display: flex; flex-direction: column; gap: 0.8rem; }

.shipping-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}

.shipping-option:hover { border-color: var(--text-muted); }
.shipping-option.selected { border-color: var(--text-primary); background: var(--bg-secondary); }
.shipping-option input { display: none; }

.shipping-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 50%;
    margin-right: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
}

.shipping-option.selected .shipping-radio { border-color: var(--text-primary); }
.shipping-option.selected .shipping-radio::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--text-primary);
    border-radius: 50%;
}

.shipping-info { flex: 1; }
.shipping-name { font-weight: 600; margin-bottom: 0.2rem; }
.shipping-time { font-size: 0.85rem; color: var(--text-muted); }
.shipping-price { font-weight: 600; font-size: 1.1rem; }
.shipping-price.free { color: var(--success); }

/* ===== PAYMENT ===== */
.payment-methods { display: flex; flex-direction: column; gap: 0.8rem; }

.payment-method {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}

.payment-method:hover { border-color: var(--text-muted); }
.payment-method.selected { border-color: var(--text-primary); background: var(--bg-secondary); }
.payment-method input { display: none; }

.payment-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 50%;
    margin-right: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.payment-method.selected .payment-radio { border-color: var(--text-primary); }
.payment-method.selected .payment-radio::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--text-primary);
    border-radius: 50%;
}

.payment-info { flex: 1; display: flex; align-items: center; justify-content: space-between; }
.payment-name { font-weight: 500; }

.payment-icons { display: flex; gap: 0.3rem; }
.payment-icons span {
    padding: 0.2rem 0.5rem;
    background: var(--bg-tertiary);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* Card Form */
.card-form { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); display: none; }
.card-form.active { display: block; }

.card-brands { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.card-brands span {
    padding: 0.4rem 0.8rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    font-size: 0.7rem;
    font-weight: 600;
    transition: all var(--transition);
}

.card-brands span.active { background: var(--text-primary); color: var(--bg-primary); border-color: var(--text-primary); }
.card-number-wrap { position: relative; }

.card-type-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
}

.bizum-form, .paypal-form { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); display: none; }
.bizum-form.active, .paypal-form.active { display: block; }

.paypal-info { text-align: center; padding: 2rem; background: var(--bg-secondary); }
.paypal-info p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== ORDER SUMMARY ===== */
.order-summary { position: sticky; top: 100px; height: fit-content; }
.summary-box { background: var(--bg-primary); border: 1px solid var(--border); }

.summary-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summary-title { font-family: 'Bebas Neue', sans-serif; font-size: 1.3rem; letter-spacing: 0.1em; }

.edit-cart-link { font-size: 0.8rem; color: var(--text-secondary); text-decoration: underline; }
.edit-cart-link:hover { color: var(--text-primary); }

.summary-toggle-price { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); display: none; }
.summary-chevron { width: 18px; height: 18px; stroke: var(--text-muted); fill: none; transition: transform var(--transition); display: none; }
.summary-chevron.open { transform: rotate(180deg); }

.summary-body { display: block; }
.summary-items { max-height: 280px; overflow-y: auto; padding: 1rem 1.5rem; -webkit-overflow-scrolling: touch; }

.summary-item { display: grid; grid-template-columns: 60px 1fr auto; gap: 1rem; padding: 0.8rem 0; border-bottom: 1px solid var(--border); }
.summary-item:last-child { border-bottom: none; }

.summary-item-img { width: 60px; height: 75px; background: var(--bg-secondary); position: relative; overflow: hidden; }
.summary-item-img img { width: 100%; height: 100%; object-fit: cover; }

.summary-item-qty {
    position: absolute; top: -6px; right: -6px;
    width: 20px; height: 20px;
    background: var(--text-primary);
    color: var(--bg-primary);
    border-radius: 50%;
    font-size: 0.65rem; font-weight: 600;
    display: flex; align-items: center; justify-content: center;
}

.summary-item-info h4 { font-size: 0.85rem; font-weight: 500; margin-bottom: 0.2rem; }
.summary-item-info p { font-size: 0.75rem; color: var(--text-muted); }
.summary-item-price { font-weight: 600; font-size: 0.9rem; }

/* Promo Code */
.promo-section { padding: 1rem 1.5rem; border-top: 1px solid var(--border); }
.promo-toggle {
    display: flex; align-items: center; gap: 0.5rem;
    background: none; border: none; color: var(--text-secondary);
    font-size: 0.85rem; cursor: pointer; padding: 0; font-family: inherit;
}
.promo-toggle svg { width: 16px; height: 16px; transition: transform var(--transition); stroke: currentColor; fill: none; }
.promo-toggle.open svg { transform: rotate(180deg); }

.promo-form { display: none; margin-top: 1rem; }
.promo-form.active { display: flex; gap: 0.5rem; }

.promo-form input {
    flex: 1; padding: 0.7rem 1rem;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit; font-size: 0.9rem; border-radius: 0;
}

.promo-form button {
    padding: 0.7rem 1.2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    font-family: inherit; font-weight: 500;
    cursor: pointer; transition: all var(--transition);
}

.promo-form button:hover { background: var(--text-primary); color: var(--bg-primary); border-color: var(--text-primary); }

.promo-applied { display: none; align-items: center; justify-content: space-between; padding: 0.5rem 0.8rem; background: rgba(16,185,129,0.1); margin-top: 0.8rem; }
.promo-applied.active { display: flex; }
.promo-applied span { color: var(--success); font-size: 0.85rem; font-weight: 500; }
.promo-applied button { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.2rem; }

/* Totals */
.summary-totals { padding: 1.5rem; border-top: 1px solid var(--border); }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 0.6rem; font-size: 0.95rem; }
.summary-row.discount { color: var(--success); }
.summary-row.total {
    font-size: 1.2rem; font-weight: 700;
    padding-top: 1rem; margin-top: 1rem;
    border-top: 2px solid var(--border);
}

/* Place Order Section */
.place-order-section { padding: 1.5rem; background: var(--bg-secondary); }

.place-order-btn {
    width: 100%; padding: 1.2rem;
    background: var(--text-primary); color: var(--bg-primary);
    border: none; font-family: inherit; font-size: 1rem;
    font-weight: 600; letter-spacing: 0.1em;
    text-transform: uppercase; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    gap: 0.8rem; transition: all var(--transition);
}

.place-order-btn:hover { opacity: 0.9; }

.place-order-btn .spinner {
    width: 20px; height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

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

.security-note {
    display: flex; align-items: flex-start; gap: 0.8rem;
    margin-top: 1rem; padding: 1rem; background: var(--bg-primary);
    font-size: 0.8rem; color: var(--text-muted);
}

.security-note svg { width: 20px; height: 20px; stroke: var(--success); fill: none; flex-shrink: 0; }

#errEmailConfirm {
    color: var(--error);
    font-size: 0.75rem;
    margin-top: 0.2rem;
    display: none; /* Se activa por JS */
}

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
    body { padding-bottom: 80px; }
    .checkout-main { grid-template-columns: 1fr; }
    .order-summary { position: static; order: -1; }
    .summary-header { cursor: pointer; }
    .edit-cart-link { display: inline-block; margin: 0 10px; z-index: 10; position: relative; }
    .summary-toggle-price, .summary-chevron { display: block; }
    .summary-body { display: none; }
    .summary-body.open { display: block; }
    .place-order-section { display: none; }
    .sticky-cta { display: flex !important; /* Forzamos visibilidad */ }
}

.sticky-cta {
        display: none; /* Oculto en escritorio por defecto */
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        padding: 1rem 5%;
        box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
        z-index: 1000;
    }

.sticky-cta-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 1rem; }
.sticky-cta-total .label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; }
.sticky-cta-total .amount { font-size: 1.1rem; font-weight: 700; }

.sticky-place-order-btn {
    flex: 1; padding: 1rem; background: var(--text-primary); color: var(--bg-primary);
    border: none; font-family: inherit; font-size: 0.95rem; font-weight: 700;
    text-transform: uppercase; cursor: pointer; min-height: 50px;
}

/* Success Modal */
.success-modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8); display: flex; align-items: center;
    justify-content: center; z-index: 10000; opacity: 0; visibility: hidden;
    transition: all var(--transition);
}
.success-modal.active { opacity: 1; visibility: visible; }

.success-content {
    background: var(--bg-primary); padding: 3rem; text-align: center;
    max-width: 480px; width: 90%; transform: scale(0.9); transition: transform 0.4s ease;
}
.success-modal.active .success-content { transform: scale(1); }

.success-icon {
    width: 80px; height: 80px; background: var(--success); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; margin: 0 auto 1.5rem;
}
.success-icon svg { width: 40px; height: 40px; stroke: white; stroke-width: 3; fill: none; }

.success-title { font-family: 'Bebas Neue', sans-serif; font-size: 2rem; margin-bottom: 0.5rem; }
.order-number { font-family: monospace; font-size: 1.1rem; background: var(--bg-secondary); padding: 0.8rem 1.5rem; margin-bottom: 1.5rem; display: inline-block; }
.success-btn { display: inline-block; padding: 1rem 2rem; background: var(--text-primary); color: var(--bg-primary); text-decoration: none; font-weight: 600; }

@media (max-width: 600px) {
    .form-grid { grid-template-columns: 1fr; }
    .checkout-main { padding: 1rem 3%; }
    .logo-text { font-size: 1.4rem; }
}

/* Estilos mínimos para que el modal se vea bien */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8); backdrop-filter: blur(5px);
    display: none; align-items: center; justify-content: center; z-index: 9999; padding: 20px;
}
.modal-overlay.active { display: flex; animation: fadeIn 0.3s ease; }
.success-card {
    background: var(--bg-primary); padding: 40px; border-radius: 20px;
    max-width: 500px; width: 100%; text-align: center; border: 1px solid var(--border);
}
.success-icon {
    width: 80px; height: 80px; background: #22c55e; color: white;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px; box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}
.order-info-box {
    background: var(--bg-secondary); border-radius: 12px; padding: 20px;
    margin: 20px 0; text-align: left; border: 1px solid var(--border);
}
.info-row { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 0.9rem; }
.info-row.total { border-top: 1px solid var(--border); padding-top: 10px; margin-top: 10px; font-weight: 700; font-size: 1.1rem; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }