/* =========================================================
   BIN BIN TEDDY - STYLE.CSS
   Bảng màu pastel ấm áp lấy cảm hứng từ lông gấu bông
   ========================================================= */

:root {
  /* --- Màu sắc --- */
  --color-bg: #FFF7F2;            /* nền kem ấm */
  --color-bg-soft: #FFEDE4;       /* nền khối phụ */
  --color-primary: #E8A0AE;       /* hồng phấn - màu chủ đạo */
  --color-primary-dark: #D9647E;  /* hồng đậm - hover/nhấn */
  --color-secondary: #A9D6C5;     /* xanh mint pastel - phụ trợ */
  --color-fur: #C9946A;           /* nâu gấu bông */
  --color-text: #4A342A;          /* nâu đậm - chữ chính */
  --color-text-soft: #8A7267;     /* nâu nhạt - chữ phụ */
  --color-white: #FFFFFF;
  --color-border: #F0DED3;

  /* --- Font chữ --- */
  --font-display: "Baloo 2", "Segoe UI", sans-serif;
  --font-body: "Quicksand", "Segoe UI", sans-serif;

  /* --- Bố cục --- */
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow-soft: 0 10px 30px rgba(201, 148, 106, 0.18);
  --shadow-card: 0 6px 18px rgba(74, 52, 42, 0.08);
  --header-height: 78px;
  --max-width: 1180px;
  --transition: 0.25s ease;
}

/* ===== RESET CƠ BẢN ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

/* Focus rõ ràng cho điều hướng bằng bàn phím */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-primary-dark);
  outline-offset: 2px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: 0 8px 20px rgba(217, 100, 126, 0.35);
}

.btn-primary:hover {
  background: #C4506A;
  transform: translateY(-2px);
}

.btn-ghost {
  background: var(--color-white);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

.btn-block {
  width: 100%;
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  height: var(--header-height);
  background: rgba(255, 247, 242, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}

.logo-text span {
  color: var(--color-primary-dark);
}

.main-nav ul {
  display: flex;
  gap: 8px;
}

.nav-link {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--color-text-soft);
  transition: background var(--transition), color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  background: var(--color-bg-soft);
  color: var(--color-primary-dark);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cart-btn {
  position: relative;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-text);
  transition: background var(--transition), transform var(--transition);
}

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

.cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 20px;
  height: 20px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--color-primary-dark);
  color: var(--color-white);
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
}

.menu-toggle span {
  display: block;
  height: 3px;
  width: 24px;
  margin: 0 auto;
  background: var(--color-text);
  border-radius: 3px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* =========================================================
   HERO / BANNER
   ========================================================= */
.hero {
  padding: 64px 0;
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
}

.hero-eyebrow {
  color: var(--color-primary-dark);
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  margin-bottom: 20px;
}

.hero-desc {
  max-width: 46ch;
  color: var(--color-text-soft);
  font-size: 1.08rem;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  color: var(--color-text-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

.hero-media {
  display: flex;
  justify-content: center;
}

.hero-bear-img {
  width: min(100%, 380px);
  filter: drop-shadow(var(--shadow-soft));
}

/* =========================================================
   PRODUCTS SECTION
   ========================================================= */
.products-section {
  padding: 80px 0;
}

.section-heading {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 40px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 10px;
}

.section-heading p {
  color: var(--color-text-soft);
}

/* --- Thanh công cụ: tìm kiếm + bộ lọc --- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  background: var(--color-white);
  padding: 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  margin-bottom: 40px;
}

.search-box {
  flex: 1 1 240px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--color-bg-soft);
  color: var(--color-text-soft);
}

.search-box input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--color-text);
}

.search-box input:focus {
  outline: none;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-group label {
  font-weight: 600;
  color: var(--color-text-soft);
  font-size: 0.92rem;
}

.filter-group select {
  padding: 10px 14px;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  font-family: inherit;
  color: var(--color-text);
  font-size: 0.92rem;
}

.btn-clear {
  padding: 10px 18px;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  color: var(--color-text-soft);
  font-weight: 600;
  font-size: 0.92rem;
  transition: border-color var(--transition), color var(--transition);
}

.btn-clear:hover {
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

/* --- Lưới sản phẩm --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 26px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 30px rgba(74, 52, 42, 0.14);
}

.product-thumb {
  background: var(--color-bg-soft);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  position: relative;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition);
}

.product-card:hover .product-thumb img {
  transform: scale(1.06) rotate(-2deg);
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-secondary);
  color: #2E5B4A;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}

.product-info {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.product-category {
  font-size: 0.78rem;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.product-name {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--color-text);
}

.product-price {
  margin-top: auto;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
}

.add-to-cart-btn {
  margin-top: 6px;
  width: 100%;
  padding: 11px;
  border-radius: 999px;
  background: var(--color-bg-soft);
  color: var(--color-primary-dark);
  font-weight: 700;
  transition: background var(--transition), color var(--transition);
}

.add-to-cart-btn:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-soft);
  font-size: 1.05rem;
}

/* =========================================================
   ABOUT SECTION
   ========================================================= */
.about-section {
  padding: 80px 0;
  background: var(--color-bg-soft);
}

.about-inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 50px;
}

.about-media {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-card);
}

.about-text p {
  color: var(--color-text-soft);
  margin-bottom: 16px;
  max-width: 60ch;
}

.about-text h2 {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  margin-bottom: 18px;
}

.about-stats {
  display: flex;
  gap: 30px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.about-stats li {
  display: flex;
  flex-direction: column;
}

.about-stats strong {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-primary-dark);
}

.about-stats span {
  color: var(--color-text-soft);
  font-size: 0.88rem;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: #3E2C22;
  color: #F3E6DC;
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.3fr 1fr;
  gap: 30px;
  padding-bottom: 40px;
}

.footer-brand .logo-text {
  color: #F3E6DC;
}

.footer-brand .logo-text span {
  color: var(--color-primary);
}

.footer-brand p {
  margin-top: 12px;
  color: #C9B6A9;
  font-size: 0.92rem;
  max-width: 30ch;
}

.footer-col h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin-bottom: 16px;
  color: #F3E6DC;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: #C9B6A9;
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: var(--color-primary);
}

.contact-list li {
  color: #C9B6A9;
  font-size: 0.92rem;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.social-links a {
  color: #C9B6A9;
  font-weight: 600;
  transition: color var(--transition);
}

.social-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #B7A290;
}

/* =========================================================
   GIỎ HÀNG (CART DRAWER)
   ========================================================= */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(74, 52, 42, 0.45);
  z-index: 800;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition);
}

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

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: min(420px, 92vw);
  background: var(--color-bg);
  z-index: 900;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  box-shadow: -10px 0 30px rgba(74, 52, 42, 0.2);
}

.cart-drawer.open {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid var(--color-border);
}

.cart-header h2 {
  font-size: 1.25rem;
}

.close-cart-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  font-size: 1rem;
  color: var(--color-text);
  transition: background var(--transition);
}

.close-cart-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px 24px;
}

.cart-empty {
  text-align: center;
  color: var(--color-text-soft);
  padding: 60px 10px;
}

.cart-item {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.cart-item-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-soft);
  padding: 6px;
}

.cart-item-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.cart-item-price {
  color: var(--color-text-soft);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.qty-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-soft);
  border-radius: 999px;
  padding: 4px 8px;
}

.qty-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-white);
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background var(--transition), color var(--transition);
}

.qty-btn:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.qty-value {
  min-width: 18px;
  text-align: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.cart-item-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.cart-item-subtotal {
  font-weight: 700;
  font-size: 0.95rem;
}

.remove-item-btn {
  color: var(--color-text-soft);
  font-size: 0.8rem;
  text-decoration: underline;
  transition: color var(--transition);
}

.remove-item-btn:hover {
  color: var(--color-primary-dark);
}

.cart-footer {
  padding: 20px 24px 24px;
  border-top: 1px solid var(--color-border);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.cart-total-row strong {
  color: var(--color-primary-dark);
  font-size: 1.3rem;
}

.cart-hint {
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-text-soft);
  margin-top: 10px;
}

/* =========================================================
   TOAST THÔNG BÁO
   ========================================================= */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-text);
  color: var(--color-white);
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 10px 24px rgba(0,0,0,0.2);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    order: 2;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions,
  .hero-badges {
    justify-content: center;
  }

  .about-inner {
    grid-template-columns: 1fr;
  }

  .about-media {
    max-width: 320px;
    margin: 0 auto;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform var(--transition);
    z-index: 400;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .main-nav ul {
    flex-direction: column;
    padding: 14px 24px 22px;
    gap: 4px;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
  }

  .menu-toggle {
    display: flex;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    justify-content: space-between;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
  }

  .hero {
    padding: 44px 0;
  }

  .products-section,
  .about-section {
    padding: 56px 0;
  }
}