/* ============================================================
   AYRES Pet Supply — CSS compartido para páginas de productos
   Usado por: productos-perros, productos-gatos,
              productos-masivos, productos-especializados
   ============================================================ */

/* ── Variables & dark mode ─────────────────────────────────── */
:root {
    --dark:        #3E484E;
    --dark-2:      #2A3035;
    --green:       #3DB870;
    --green-dark:  #2A9455;
    --white:       #FFFFFF;
    --text:        #3E484E;
    --text-light:  #7A8A92;
    --font-h:      'Raleway', sans-serif;
    --font-b:      'Poppins', sans-serif;
    --ease:        0.3s ease;
    /* page tokens — light mode defaults */
    --pg-bg:          #F5F4F2;
    --hdr-bg:         #FFFFFF;
    --hdr-border:     rgba(0,0,0,.08);
    --ph-border:      rgba(0,0,0,.08);
    --title-c:        var(--dark);
    --sidebar-border: rgba(0,0,0,.08);
    --brand-c:        rgba(0,0,0,.6);
    --brand-active-c: var(--dark);
    --brand-hover-bg: rgba(0,0,0,.04);
    --fdivider:       rgba(0,0,0,.07);
    --fnote-c:        rgba(0,0,0,.35);
    --card-bg:        #FFFFFF;
    --card-border:    rgba(0,0,0,.08);
    --label-c:        rgba(0,0,0,.35);
    --footer-c:       rgba(0,0,0,.3);
    --footer-border:  rgba(0,0,0,.08);
}

[data-theme="dark"] {
    --pg-bg:          #141A1E;
    --hdr-bg:         var(--dark-2);
    --hdr-border:     rgba(255,255,255,.08);
    --ph-border:      rgba(255,255,255,.06);
    --title-c:        #FFFFFF;
    --sidebar-border: rgba(255,255,255,.06);
    --brand-c:        rgba(255,255,255,.65);
    --brand-active-c: #FFFFFF;
    --brand-hover-bg: rgba(255,255,255,.05);
    --fdivider:       rgba(255,255,255,.06);
    --fnote-c:        rgba(255,255,255,.25);
    --card-bg:        rgba(255,255,255,.04);
    --card-border:    rgba(255,255,255,.08);
    --label-c:        rgba(255,255,255,.35);
    --footer-c:       rgba(255,255,255,.25);
    --footer-border:  rgba(255,255,255,.06);
}

[data-theme] body, [data-theme] .header, [data-theme] .page-header,
[data-theme] .placeholder-card { transition: background-color .3s ease, border-color .3s ease, color .3s ease; }

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-b); color: var(--text); background: var(--pg-bg); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }

/* ── Header ────────────────────────────────────────────────── */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 40px; height: 70px;
    background: var(--hdr-bg); border-bottom: 1px solid var(--hdr-border);
}
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img { height: 52px; width: auto; display: block; }
.logo-dark { display: none; }
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark  { display: block; }
.header-right { display: flex; align-items: center; gap: 16px; }
.back-btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-h); font-size: 11px; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase; color: var(--green);
    transition: var(--ease);
}
.back-btn:hover { opacity: .75; }
.back-btn svg { width: 16px; height: 16px; }
.theme-toggle {
    width: 34px; height: 34px; background: none;
    border: 1.5px solid var(--hdr-border); border-radius: 50%;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    color: var(--text-light); transition: var(--ease); flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--green); color: var(--green); }
.theme-toggle svg { width: 16px; height: 16px; }
.icon-moon { display: block; }
.icon-sun  { display: none; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun  { display: block; }

/* ── Page header ───────────────────────────────────────────── */
.page-header {
    padding: 110px 40px 48px;
    border-bottom: 1px solid var(--ph-border);
}
.tag {
    font-family: var(--font-h); font-size: 11px; font-weight: 700;
    letter-spacing: 3px; text-transform: uppercase; color: var(--green);
    display: block; margin-bottom: 12px;
}
.divider { width: 40px; height: 3px; background: var(--green); margin-bottom: 20px; }
.page-title {
    font-family: var(--font-h); font-size: clamp(28px, 4vw, 52px);
    font-weight: 900; color: var(--title-c); line-height: 1.05; letter-spacing: -1px;
}
.page-title span { color: var(--green); }

/* ── Coming soon badge ─────────────────────────────────────── */
.coming-soon-badge {
    display: inline-flex; align-items: center; gap: 10px;
    background: rgba(61,184,112,.12); border: 1px solid rgba(61,184,112,.3);
    border-radius: 100px; padding: 8px 20px; margin-top: 20px;
    font-family: var(--font-h); font-size: 11px; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase; color: var(--green);
}
.coming-soon-badge .dot {
    width: 7px; height: 7px; background: var(--green);
    border-radius: 50%; animation: pulse 1.6s ease-in-out infinite;
    will-change: transform, opacity;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .4; transform: scale(.7); }
}

/* ── Catalog layout ────────────────────────────────────────── */
.catalog-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 0;
    min-height: calc(100vh - 200px);
}

/* ── Sidebar filtros ───────────────────────────────────────── */
.sidebar {
    padding: 36px 28px;
    border-right: 1px solid var(--sidebar-border);
    position: sticky; top: 70px; align-self: start;
    max-height: calc(100vh - 70px); overflow-y: auto;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(128,128,128,.2); border-radius: 2px; }

.filter-title {
    font-family: var(--font-h); font-size: 10px; font-weight: 700;
    letter-spacing: 3px; text-transform: uppercase; color: var(--green);
    margin-bottom: 20px;
}
.brand-list { display: flex; flex-direction: column; gap: 4px; }
.brand-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; border-radius: 6px;
    cursor: pointer; transition: background var(--ease);
}
.brand-item:hover { background: var(--brand-hover-bg); }
.brand-item input[type="checkbox"] {
    width: 16px; height: 16px; accent-color: var(--green);
    cursor: pointer; flex-shrink: 0;
}
.brand-name {
    font-family: var(--font-h); font-size: 13px; font-weight: 600;
    color: var(--brand-c); transition: color var(--ease);
}
.brand-item:hover .brand-name,
.brand-item input:checked ~ .brand-name { color: var(--brand-active-c); }

.filter-divider {
    border: none; border-top: 1px solid var(--fdivider);
    margin: 24px 0;
}
.filter-note {
    font-size: 11px; color: var(--fnote-c); line-height: 1.7;
}

/* ── Área de productos ─────────────────────────────────────── */
.catalog-content { padding: 36px 40px 80px; }
.placeholder-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.placeholder-card {
    background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 8px; padding: 40px 28px; text-align: center;
}
.placeholder-icon {
    width: 48px; height: 48px; background: rgba(61,184,112,.12);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
}
.placeholder-icon svg { width: 22px; height: 22px; stroke: var(--green); fill: none; stroke-width: 1.8; }
.placeholder-label {
    font-family: var(--font-h); font-size: 13px; font-weight: 700;
    color: var(--label-c); letter-spacing: 1px; text-transform: uppercase;
}

/* ── Footer ────────────────────────────────────────────────── */
.page-footer {
    text-align: center; padding: 40px 28px;
    font-size: 12px; color: var(--footer-c);
    border-top: 1px solid var(--footer-border);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
    .catalog-layout { grid-template-columns: 1fr; }
    .sidebar {
        position: static; max-height: none;
        border-right: none; border-bottom: 1px solid var(--sidebar-border);
        padding: 28px 24px;
    }
    .brand-list { flex-direction: row; flex-wrap: wrap; gap: 8px; }
    .brand-item { padding: 8px 14px; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 100px; }
    .catalog-content { padding: 28px 24px 60px; }
    .placeholder-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .header { padding: 0 20px; }
    .page-header { padding: 100px 20px 36px; }
    .placeholder-grid { grid-template-columns: 1fr; }
}

/* ── Lightbox ──────────────────────────────────────────── */
.img-lightbox {
    display: none; position: fixed; inset: 0; z-index: 300;
    background: rgba(0,0,0,.88); backdrop-filter: blur(6px);
    align-items: center; justify-content: center; padding: 20px;
    cursor: zoom-out;
}
.img-lightbox.open { display: flex; }
.img-lightbox img {
    max-width: 90vw; max-height: 88vh;
    object-fit: contain; border-radius: 8px;
    box-shadow: 0 8px 48px rgba(0,0,0,.7);
    cursor: default;
}
.lightbox-close {
    position: absolute; top: 20px; right: 20px;
    width: 40px; height: 40px; background: none;
    border: 1.5px solid rgba(255,255,255,.4); border-radius: 50%;
    cursor: pointer; color: #fff; font-size: 20px; line-height: 1;
    display: flex; align-items: center; justify-content: center;
    transition: border-color 0.2s, background 0.2s;
}
.lightbox-close:hover { border-color: #fff; background: rgba(255,255,255,.12); }
.product-img { cursor: zoom-in; }
.prod-card-img { cursor: zoom-in; }