/* ============================================
   HELADERÍA KAFIT — Components
   Buttons, Cards, Badges, Modals, Forms
   ============================================ */

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.btn:active::after { width: 200%; height: 200%; }

.btn-primary {
    background: var(--kafit-primary);
    color: var(--kafit-white);
    box-shadow: 0 4px 15px rgba(var(--kafit-primary-rgb), 0.2);
}

.btn-primary:hover {
    background: var(--kafit-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--kafit-primary-rgb), 0.3);
}

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

.btn-secondary:hover {
    background: var(--kafit-secondary-light);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--kafit-primary);
    color: var(--kafit-white);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--kafit-accent);
    color: var(--kafit-dark);
    font-weight: 700;
}

.btn-accent:hover {
    background: var(--kafit-accent-dark);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--kafit-white);
    color: var(--kafit-primary);
    box-shadow: var(--shadow-md);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-ghost {
    background: rgba(255,255,255,0.15);
    color: var(--kafit-white);
    backdrop-filter: blur(8px);
    border-color: rgba(255,255,255,0.3);
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-2px);
}

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

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

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

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background: #1ebe57;
    transform: translateY(-2px);
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ── Product Cards ── */
.product-card {
    background: var(--kafit-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

.product-card__image {
    position: relative;
    padding-top: 85%;
    overflow: hidden;
    background: var(--kafit-cream);
}

.product-card__image img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-card__image img {
    transform: scale(1.08);
}

.product-card__badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    z-index: 2;
}

.product-card__quick-add {
    position: absolute;
    bottom: var(--space-3);
    right: var(--space-3);
    z-index: 2;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

.product-card:hover .product-card__quick-add {
    opacity: 1;
    transform: translateY(0);
}

.product-card__body {
    padding: var(--space-5);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card__category {
    font-size: var(--text-xs);
    color: var(--kafit-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.product-card__name {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--kafit-dark);
    margin-bottom: var(--space-2);
    line-height: 1.3;
}

.product-card__name a:hover { color: var(--kafit-primary); }

.product-card__desc {
    font-size: var(--text-sm);
    color: var(--kafit-gray-600);
    margin-bottom: var(--space-4);
    flex: 1;
}

.product-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
}

.product-card__price {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--kafit-primary);
}

.product-card__price .original-price {
    font-size: var(--text-sm);
    color: var(--kafit-gray-400);
    text-decoration: line-through;
    margin-right: var(--space-2);
    font-weight: 400;
}

.product-card__add-btn {
    width: 42px; height: 42px;
    border-radius: var(--radius-full);
    background: var(--kafit-gradient-warm);
    color: var(--kafit-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    box-shadow: 0 3px 10px rgba(var(--kafit-primary-rgb), 0.3);
}

.product-card__add-btn:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 5px 15px rgba(var(--kafit-primary-rgb), 0.45);
}

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-new { background: var(--kafit-mint); color: var(--kafit-white); }
.badge-popular { background: var(--kafit-accent); color: var(--kafit-dark); }
.badge-promo { background: var(--kafit-error); color: var(--kafit-white); }
.badge-favorite { background: var(--kafit-primary); color: var(--kafit-white); }

/* Order Status Badges */
.badge-status { font-size: var(--text-xs); padding: 4px 12px; border-radius: var(--radius-full); font-weight: 600; }
.badge-recibido { background: #DBEAFE; color: #1D4ED8; }
.badge-en_preparacion { background: #FEF3C7; color: #D97706; }
.badge-listo { background: #D1FAE5; color: #059669; }
.badge-en_camino { background: #E0E7FF; color: #4F46E5; }
.badge-entregado { background: #D1FAE5; color: #047857; }
.badge-cancelado { background: #FEE2E2; color: #DC2626; }

/* ── Category Cards ── */
.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-6) var(--space-4);
    background: var(--kafit-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
    cursor: pointer;
    text-decoration: none;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(var(--kafit-primary-rgb), 0.2);
}

.category-card__icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
    width: 72px; height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--kafit-primary-rgb), 0.08);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.category-card:hover .category-card__icon {
    background: var(--kafit-gradient-warm);
    transform: scale(1.1);
}

.category-card__name {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--kafit-dark);
    margin-bottom: var(--space-1);
}

.category-card__count {
    font-size: var(--text-xs);
    color: var(--kafit-gray-500);
}

/* ── Modal ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--kafit-white);
    border-radius: var(--radius-2xl);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-spring);
    position: relative;
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 36px; height: 36px;
    border-radius: var(--radius-full);
    background: var(--kafit-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 2;
    transition: all var(--transition-fast);
    border: none;
}

.modal__close:hover {
    background: var(--kafit-gray-200);
    transform: rotate(90deg);
}

/* ── Forms ── */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--kafit-gray-700);
    margin-bottom: var(--space-2);
}

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--kafit-gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--kafit-dark);
    background: var(--kafit-white);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--kafit-primary);
    box-shadow: 0 0 0 4px rgba(var(--kafit-primary-rgb), 0.1);
}

.form-input::placeholder { color: var(--kafit-gray-400); }

textarea.form-input { resize: vertical; min-height: 100px; }

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23757575' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

/* ── Quantity Control ── */
.qty-control {
    display: inline-flex;
    align-items: center;
    border: 2px solid var(--kafit-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.qty-control button {
    width: 38px; height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--kafit-gray-700);
    background: var(--kafit-gray-50);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.qty-control button:hover {
    background: var(--kafit-primary);
    color: var(--kafit-white);
}

.qty-control input {
    width: 45px;
    text-align: center;
    border: none;
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--kafit-dark);
    outline: none;
    background: transparent;
    -moz-appearance: textfield;
}

.qty-control input::-webkit-inner-spin-button,
.qty-control input::-webkit-outer-spin-button { -webkit-appearance: none; }

/* ── Promo Card ── */
.promo-card {
    background: var(--kafit-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
    position: relative;
}

.promo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.promo-card__image {
    position: relative;
    padding-top: 50%;
    overflow: hidden;
}

.promo-card__image img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
}

.promo-card__discount {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--kafit-error);
    color: var(--kafit-white);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-lg);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
}

.promo-card__body { padding: var(--space-6); }
.promo-card__name { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 600; margin-bottom: var(--space-2); }
.promo-card__desc { font-size: var(--text-sm); color: var(--kafit-gray-600); margin-bottom: var(--space-4); }
.promo-card__prices { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.promo-card__original { font-size: var(--text-lg); color: var(--kafit-gray-400); text-decoration: line-through; }
.promo-card__price { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 700; color: var(--kafit-primary); }
.promo-card__dates { font-size: var(--text-xs); color: var(--kafit-gray-500); }

/* ── WhatsApp Floating Button ── */
.whatsapp-float {
    position: fixed;
    bottom: var(--space-6);
    left: var(--space-6);
    width: 56px; height: 56px;
    background: #25D366;
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
    cursor: pointer;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg { width: 28px; height: 28px; fill: white; }

/* ── Loading Spinner ── */
.spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--kafit-gray-200);
    border-top-color: var(--kafit-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-6);
}

.empty-state__icon { font-size: 4rem; margin-bottom: var(--space-4); opacity: 0.5; }
.empty-state__title { font-family: var(--font-display); font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.empty-state__text { color: var(--kafit-gray-500); margin-bottom: var(--space-6); }