/**
 * OS TigerLab — Cart Drawer
 *
 * Drawer lateral derecho con items del carrito + cupón + checkout.
 * No depende de Alpine.js — manejo manual.
 *
 * Activación:
 *   <button data-ostl-cart-open>Carrito (<span data-ostl-cart-count>0</span>)</button>
 *
 * Triggers programáticos:
 *   OSTLCart.open(), .close(), .add(slug,...), .remove(slug)
 */

.ostl-cart-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2, 8px);
    min-height: 44px;
    background: transparent;
    color: var(--color-text-primary);
    border: 0;
    padding: var(--sp-2);
    border-radius: var(--radius-md, 12px);
    cursor: pointer;
    font-family: var(--font-body, system-ui, sans-serif);
    font-size: var(--fs-sm, 0.9375rem);
    transition: background var(--d-fast, 160ms);
}
.ostl-cart-toggle:hover { background: var(--color-bg-secondary, #161616); }
.ostl-cart-toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.ostl-cart-toggle__count {
    background: var(--color-accent, #00FF9C);
    color: #0A0A0A;
    border-radius: 999px;
    min-width: 18px; height: 18px;
    padding: 0 5px;
    font-weight: 700;
    font-size: 11px;
    line-height: 18px;
    display: inline-block;
    text-align: center;
}
.ostl-cart-toggle__count[data-empty="true"] {
    display: none;
}

/* Drawer */
.ostl-cart-drawer {
    position: fixed;
    inset: 0;
    z-index: var(--z-drawer-cart, 5300);
    display: none;
    pointer-events: none;
}
.ostl-cart-drawer[data-open="true"] {
    display: block;
    pointer-events: auto;
}
.ostl-cart-drawer__backdrop {
    position: absolute; inset: 0;
    background: rgba(0, 0, 0, 0.55);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--d-base, 240ms) ease-out;
}
.ostl-cart-drawer[data-open="true"] .ostl-cart-drawer__backdrop {
    opacity: 1;
}
.ostl-cart-drawer__panel {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: min(440px, 100%);
    background: var(--color-bg-elevated, #1E1E1E);
    color: var(--color-text-primary, #F5F5F5);
    box-shadow: -16px 0 48px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--d-slow, 360ms) var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1));
}
.ostl-cart-drawer[data-open="true"] .ostl-cart-drawer__panel {
    transform: translateX(0);
}

.ostl-cart-drawer__header {
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--sp-4) var(--sp-5);
    padding-top: calc(var(--sp-4) + env(safe-area-inset-top, 0px));
    padding-right: calc(var(--sp-5) + env(safe-area-inset-right, 0px));
    border-bottom: 1px solid var(--color-border-default, #2A2A2A);
}
.ostl-cart-drawer__title {
    font-family: var(--font-display, 'Poppins', sans-serif);
    font-weight: 700;
    font-size: var(--fs-lg, 1.125rem);
    margin: 0;
}
.ostl-cart-drawer__close {
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border-default);
    background: transparent;
    color: var(--color-text-primary);
    border-radius: var(--radius-md, 12px);
    cursor: pointer;
    display: grid; place-items: center;
}
.ostl-cart-drawer__close:hover { background: var(--color-bg-secondary, #161616); }

.ostl-cart-drawer__body {
    flex: 1;
    overflow-y: auto;
    padding: var(--sp-4) var(--sp-5);
    padding-right: calc(var(--sp-5) + env(safe-area-inset-right, 0px));
}

.ostl-cart-empty {
    text-align: center;
    padding: var(--sp-8) var(--sp-3);
    color: var(--color-text-secondary, #B3B3B3);
}
.ostl-cart-empty__icon {
    color: var(--color-accent);
    font-size: 36px;
    margin-bottom: var(--sp-3);
    opacity: 0.6;
}

.ostl-cart-item {
    display: flex; gap: var(--sp-3);
    padding: var(--sp-3) 0;
    border-bottom: 1px solid var(--color-border-default, #2A2A2A);
}
.ostl-cart-item__thumb {
    width: 64px; height: 64px;
    border-radius: var(--radius-md, 12px);
    background: linear-gradient(135deg, var(--c-emerald-700, #00B47A), var(--c-cyan-700, #0E7490));
    flex-shrink: 0;
    background-size: cover;
    background-position: center;
}
.ostl-cart-item__body { flex: 1; min-width: 0; }
.ostl-cart-item__title {
    font-weight: 600;
    font-size: var(--fs-sm, 0.9375rem);
    margin: 0 0 4px;
    color: var(--color-text-primary);
}
.ostl-cart-item__sub {
    font-size: var(--fs-xs, 0.8125rem);
    color: var(--color-text-secondary, #B3B3B3);
    margin: 0 0 var(--sp-1);
}
.ostl-cart-item__row {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: var(--sp-2);
}
.ostl-cart-item__price {
    font-weight: 700;
    color: var(--color-accent, #00FF9C);
}
.ostl-cart-item__remove {
    background: transparent; border: 0;
    color: var(--color-text-secondary, #B3B3B3);
    cursor: pointer;
    font-size: 12px;
    padding: 4px;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.ostl-cart-item__remove:hover { color: var(--color-danger, #EF4444); }

.ostl-cart-coupon {
    display: flex; gap: var(--sp-2);
    margin: var(--sp-4) 0;
    align-items: stretch;
}
.ostl-cart-coupon__input {
    flex: 1;
    padding: 10px 12px;
    background: var(--color-bg-secondary, #161616);
    border: 1px solid var(--color-border-default, #2A2A2A);
    color: var(--color-text-primary);
    border-radius: var(--radius-md, 12px);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
}
.ostl-cart-coupon__input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}
.ostl-cart-coupon__feedback {
    font-size: 12px;
    margin-top: 4px;
    color: var(--color-text-secondary);
}
.ostl-cart-coupon__feedback[data-status="ok"] { color: var(--color-accent, #00FF9C); }
.ostl-cart-coupon__feedback[data-status="err"]{ color: var(--color-danger, #EF4444); }

.ostl-cart-drawer__footer {
    padding: var(--sp-4) var(--sp-5);
    padding-bottom: calc(var(--sp-4) + env(safe-area-inset-bottom, 0px));
    padding-right: calc(var(--sp-5) + env(safe-area-inset-right, 0px));
    border-top: 1px solid var(--color-border-default, #2A2A2A);
    background: var(--color-bg-secondary, #161616);
}
.ostl-cart-totals {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--sp-1) var(--sp-3);
    margin-bottom: var(--sp-3);
    font-size: var(--fs-sm);
}
.ostl-cart-totals__label { color: var(--color-text-secondary); }
.ostl-cart-totals__value { color: var(--color-text-primary); font-weight: 600; text-align: right; }
.ostl-cart-totals__total { font-size: var(--fs-lg, 1.125rem); font-weight: 700; color: var(--color-accent, #00FF9C); }

@media (prefers-reduced-motion: reduce) {
    .ostl-cart-drawer__panel,
    .ostl-cart-drawer__backdrop { transition-duration: 1ms !important; }
}

[data-theme="light"] .ostl-cart-drawer__panel {
    background: #FFFFFF;
    color: #0A0A0A;
}
[data-theme="light"] .ostl-cart-drawer__footer {
    background: #F5F5F5;
}