/* ═══════════════════════════════════════════════════════════
   PetHaul Design System
   Colors: Amber + Forest + Cream
   Fonts: Space Grotesk (headings) + DM Sans (body)
   ═══════════════════════════════════════════════════════════ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --amber: #F59E0B;
    --amber-light: #FCD34D;
    --amber-dark: #D97706;
    --forest: #064E3B;
    --forest-light: #065F46;
    --cream: #FFFBEB;
    --warm-white: #FEF3C7;
    --charcoal: #1C1917;
    --stone: #78716C;
    --stone-light: #A8A29E;
    --white: #ffffff;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-lg: 0 4px 24px rgba(0,0,0,0.1);
    --transition: 0.2s ease;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--cream);
    color: var(--charcoal);
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; line-height: 1.2; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ─── NAV ────────────────────────────────────────────────── */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(20px);
    background: rgba(255, 251, 235, 0.9);
    border-bottom: 1px solid rgba(245, 158, 11, 0.15);
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--forest);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--amber);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-link {
    color: var(--charcoal);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition);
}
.nav-link:hover { color: var(--forest); }

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--forest);
    color: var(--white);
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background var(--transition);
}
.nav-btn:hover { background: var(--forest-light); }

.cart-badge {
    background: var(--amber);
    color: var(--charcoal);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.1rem 0.5rem;
    border-radius: 100px;
    min-width: 20px;
    text-align: center;
}

/* ─── PAGES / ROUTING ────────────────────────────────────── */
.page { display: none; }
.page.active { display: block; }

.page-header {
    padding: 6rem 0 2rem;
    background: var(--forest);
    color: var(--white);
}
.page-header h1 { font-size: 2rem; margin-top: 0.5rem; }

.btn-back {
    background: none;
    border: none;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    cursor: pointer;
    font-family: 'DM Sans', sans-serif;
    padding: 0;
    transition: color var(--transition);
}
.btn-back:hover { color: var(--white); }

/* ─── HERO ───────────────────────────────────────────────── */
.hero {
    padding: 7rem 2rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: 3rem;
    min-height: 80vh;
}

.hero-content { flex: 1; max-width: 600px; }

.hero-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--forest);
    background: rgba(6, 78, 59, 0.08);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--charcoal);
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.text-amber { color: var(--amber-dark); }

.hero-sub {
    font-size: 1.15rem;
    color: var(--stone);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-actions { display: flex; flex-direction: column; gap: 2rem; }

.hero-stats {
    display: flex;
    gap: 2.5rem;
}
.stat { display: flex; flex-direction: column; }
.stat strong { font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem; color: var(--forest); }
.stat span { font-size: 0.8rem; color: var(--stone); }

.hero-visual {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.5rem 3rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid rgba(245, 158, 11, 0.1);
}
.hero-card.card-alt { margin-left: 3rem; }
.hero-emoji { font-size: 4rem; margin-bottom: 0.75rem; }
.hero-card-text { font-weight: 600; color: var(--forest); font-size: 1rem; }

/* ─── BUTTONS ────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: 100px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--forest);
    color: var(--white);
}
.btn-primary:hover { background: var(--forest-light); transform: translateY(-1px); }

.btn-lg { padding: 1rem 2.5rem; font-size: 1.05rem; }

.btn-outline {
    background: transparent;
    color: var(--forest);
    border: 2px solid var(--forest);
}
.btn-outline:hover { background: var(--forest); color: var(--white); }

.btn-amber {
    background: var(--amber);
    color: var(--charcoal);
}
.btn-amber:hover { background: var(--amber-dark); color: var(--white); }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

.btn-danger {
    background: transparent;
    color: #dc2626;
    border: 1px solid #fca5a5;
}
.btn-danger:hover { background: #fef2f2; }

/* ─── SECTIONS ───────────────────────────────────────────── */
.section { padding: 5rem 0; }
.section-alt { background: var(--white); }

.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: 2rem; color: var(--charcoal); margin-bottom: 0.5rem; }
.section-header p { color: var(--stone); font-size: 1.05rem; }

.section-cta { text-align: center; margin-top: 2.5rem; }

/* ─── PRODUCT GRID ───────────────────────────────────────── */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.product-image {
    height: 180px;
    background: var(--warm-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--amber);
    color: var(--charcoal);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-info {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--amber-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.product-name {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: var(--charcoal);
    margin-bottom: 0.4rem;
    line-height: 1.3;
}

.product-desc {
    font-size: 0.85rem;
    color: var(--stone);
    line-height: 1.5;
    margin-bottom: 1rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.product-price {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--forest);
}

.btn-add-cart {
    background: var(--forest);
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-add-cart:hover { background: var(--amber); color: var(--charcoal); }

/* ─── FEATURES GRID ──────────────────────────────────────── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--cream);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid rgba(245, 158, 11, 0.1);
}
.feature-icon { font-size: 2rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--forest); }
.feature-card p { font-size: 0.9rem; color: var(--stone); line-height: 1.6; }

/* ─── CATEGORIES GRID ────────────────────────────────────── */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid rgba(0,0,0,0.06);
    cursor: pointer;
    transition: all var(--transition);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--charcoal);
}
.category-card:hover {
    border-color: var(--amber);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}
.cat-emoji { font-size: 2rem; }

/* ─── SHOP LAYOUT ────────────────────────────────────────── */
.shop-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 2rem;
    padding-top: 2rem;
    padding-bottom: 4rem;
}

.shop-sidebar h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--stone);
    margin-bottom: 1rem;
}

.filter-list { display: flex; flex-direction: column; gap: 0.35rem; }

.filter-btn {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.6rem 1rem;
    border: none;
    background: transparent;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--charcoal);
    cursor: pointer;
    transition: all var(--transition);
}
.filter-btn:hover { background: rgba(6, 78, 59, 0.06); }
.filter-btn.active {
    background: var(--forest);
    color: var(--white);
    font-weight: 600;
}

/* ─── CART ────────────────────────────────────────────────── */
.cart-layout { padding-bottom: 4rem; padding-top: 2rem; }

.cart-empty {
    text-align: center;
    padding: 4rem 2rem;
}
.empty-icon { font-size: 4rem; margin-bottom: 1rem; }
.cart-empty h2 { margin-bottom: 0.5rem; }
.cart-empty p { color: var(--stone); margin-bottom: 2rem; }

.cart-items { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }

.cart-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.25rem;
    border: 1px solid rgba(0,0,0,0.06);
}

.cart-item-image {
    width: 72px;
    height: 72px;
    background: var(--warm-white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 600; margin-bottom: 0.15rem; }
.cart-item-price { color: var(--forest); font-weight: 700; font-family: 'Space Grotesk', sans-serif; }

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.qty-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0,0,0,0.12);
    background: var(--white);
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition);
    font-family: 'DM Sans', sans-serif;
}
.qty-btn:hover { border-color: var(--forest); color: var(--forest); }

.qty-value { font-weight: 600; min-width: 20px; text-align: center; }

.cart-item-remove {
    background: none;
    border: none;
    color: var(--stone-light);
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0.5rem;
    transition: color var(--transition);
}
.cart-item-remove:hover { color: #dc2626; }

/* ─── CART SUMMARY ───────────────────────────────────────── */
.cart-summary {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid rgba(0,0,0,0.06);
    max-width: 480px;
    margin-left: auto;
}

.cart-summary h3 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}
.summary-row.total {
    font-weight: 700;
    font-size: 1.15rem;
    padding-top: 0.75rem;
    border-top: 2px solid var(--forest);
    margin-top: 0.75rem;
    color: var(--forest);
}

.checkout-email {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(0,0,0,0.12);
    border-radius: 10px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    margin: 1rem 0;
    outline: none;
    transition: border-color var(--transition);
}
.checkout-email:focus { border-color: var(--forest); }

.btn-checkout {
    width: 100%;
    padding: 1rem;
    background: var(--amber);
    color: var(--charcoal);
    border: none;
    border-radius: 100px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-checkout:hover { background: var(--amber-dark); color: var(--white); }
.btn-checkout:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─── SUCCESS ────────────────────────────────────────────── */
.success-icon { font-size: 5rem; margin-bottom: 1rem; }

/* ─── TOAST ──────────────────────────────────────────────── */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--forest);
    color: var(--white);
    padding: 0.85rem 1.5rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 200;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ─── LOADING ────────────────────────────────────────────── */
.loading-spinner {
    text-align: center;
    padding: 3rem;
    color: var(--stone);
    grid-column: 1 / -1;
}

/* ─── FOOTER ─────────────────────────────────────────────── */
.footer {
    background: var(--forest);
    color: rgba(255,255,255,0.8);
    padding: 3rem 0 2rem;
}
.footer-inner { display: flex; flex-direction: column; gap: 1.5rem; align-items: center; text-align: center; }
.footer .logo { color: var(--white); }
.footer .logo-icon { background: var(--amber); }
.footer-brand p { font-size: 0.9rem; margin-top: 0.5rem; line-height: 1.5; }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.9rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--amber-light); }
.footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 768px) {
    nav { padding: 0.75rem 1rem; }
    .nav-links { gap: 0.75rem; }
    .nav-link { display: none; }

    .hero {
        flex-direction: column;
        padding: 6rem 1.5rem 3rem;
        min-height: auto;
        text-align: center;
    }
    .hero-content { max-width: 100%; }
    .hero-sub { margin-left: auto; margin-right: auto; }
    .hero-actions { align-items: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { flex-direction: row; }
    .hero-card.card-alt { margin-left: 0; }
    .hero-card { padding: 1.5rem 2rem; }
    .hero-emoji { font-size: 3rem; }

    .shop-layout {
        grid-template-columns: 1fr;
    }
    .shop-sidebar {
        position: sticky;
        top: 60px;
        background: var(--cream);
        z-index: 10;
        padding: 1rem 0;
    }
    .filter-list { flex-direction: row; flex-wrap: wrap; gap: 0.5rem; }
    .filter-btn { width: auto; padding: 0.5rem 1rem; font-size: 0.8rem; }

    .cart-item { flex-wrap: wrap; }
    .cart-summary { max-width: 100%; }

    .category-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); }
    .features-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .product-grid { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .hero-stats { flex-direction: column; gap: 1rem; align-items: center; }
}