/* ================= VARIABLES & RESET ================= */
:root {
    --black: #000000;
    --white: #FFFFFF;
    --gray-light: #F7F7F7;
    --gray-text: #666666;
    --container-width: 1440px;
    --padding-x: 80px;
    --transition: 0.3s ease;
    
    /* HỆ THỐNG FONT THEO FIGMA */
    --font-heading: 'Bebas Neue', sans-serif;
    --font-climate: 'Climate Crisis', sans-serif; /* Cho Hero Title */
    --font-serif: 'Playfair Display', serif;      /* Cho Menu & Tiêu đề phụ */
    --font-body: 'Quicksand', sans-serif;         /* Cho văn bản dài & Form */
}

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

body {
    font-family: var(--font-body); /* Mặc định văn bản dài dùng Quicksand */
    background-color: var(--white);
    color: var(--black);
    overflow-x: hidden;
    font-weight: 500;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ================= BỐ CỤC KHUNG CHUẨN ĐỒNG NHẤT ================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--padding-x);
}

@media (max-width: 768px) {
    :root { --padding-x: 24px; }
}

/* ================= DÒNG KẺ PHÂN CÁCH (CHIA SECTION) ================= */
.section-divider {
    border: none;
    border-top: 1px solid #EAEAEA;
    width: 100%;
    margin: 60px 0;
}

/* ================= 2. HEADER ================= */
header {
    border-bottom: 1px solid #eee;
}

.header-inner {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 32px;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-menu a {
    font-family: var(--font-serif); /* Font Playfair Display cho Menu */
    font-size: 15px;
    font-weight: 600;
    text-transform: capitalize; /* Thường Playfair để Capitalize sẽ sang hơn */
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--gray-text);
}

.nav-separator {
    color: #ddd;
    font-size: 14px;
    font-weight: 300;
}

.header-icons {
    display: flex;
    gap: 24px;
    font-size: 18px;
}

.header-icons i { cursor: pointer; transition: var(--transition); }
.header-icons i:hover { color: var(--gray-text); }

/* ================= 3. HERO SECTION ================= */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin: 80px auto 40px auto;
}

.hero-text h1 {
    font-family: var(--font-climate); /* Font Climate Crisis cho Hero Title */
    font-weight: 400;
    font-size: clamp(60px, 8vw, 130px);
    line-height: 0.9;
    margin-bottom: 24px;
    letter-spacing: -1px;
    text-transform: uppercase;
    /* Điều chỉnh trục YEAR để font "chảy" đúng ý đồ thiết kế */
    font-variation-settings: "YEAR" 1979; 
}

.hero-text p {
    font-family: var(--font-body); /* Font Quicksand cho văn bản dài */
    color: var(--gray-text);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.6;
    max-width: 400px;
    margin-bottom: 40px;
}

.btn-group {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 16px 32px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body); /* Nút bấm dùng Quicksand */
}

.btn-primary {
    background-color: var(--black);
    color: var(--white);
    border: 1px solid var(--black);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--black);
    border: 1px solid var(--black);
}

.btn-outline:hover {
    background-color: var(--black);
    color: var(--white);
}

.hero-image {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
}

.hero-image img {
    width: 90%;
    filter: drop-shadow(0 30px 40px rgba(0,0,0,0.2));
    transition: var(--transition);
}

.hero-image img:hover {
    transform: scale(1.05) translateY(-5px);
}

.hero-img-caption {
    width: 90%;
    font-family: var(--font-serif); /* Font Playfair Display */
    font-size: 16px;
    font-weight: 600;
    color: var(--black);
    margin-top: 16px;
    text-align: left;
}

/* ================= 4 & 5. FEATURED SNEAKERS ================= */
.featured-section {
    margin-bottom: 60px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 20px;
}

.section-header h2 {
    font-family: var(--font-serif); /* Font Playfair Display */
    font-size: clamp(36px, 4vw, 44px);
    font-weight: 700;
    letter-spacing: 0;
}

.explore-more {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    color: var(--black);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}
 
.explore-more:hover { color: var(--gray-text); }

.brand-subtitle {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 40px 0 20px 0;
}

/* ... carousel-wrapper, product-grid, product-card, card-top, v.v giữ nguyên ... */
.carousel-wrapper { position: relative; }
.carousel-next { position: absolute; right: -45px; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: transparent; border: none; font-size: 20px; color: var(--gray-text); cursor: pointer; transition: var(--transition); }
.carousel-next:hover { color: var(--black); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.product-card {
    background-color: var(--gray-light);
    border-radius: 20px;
    padding: 24px;
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.card-title { font-weight: 700; font-size: 16px; line-height: 1.4; font-family: var(--font-body); }
.card-colors { font-size: 11px; font-weight: 700; color: var(--gray-text); margin-top: 6px; text-transform: uppercase; font-family: var(--font-body); }
.wishlist-icon { background: var(--white); width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); flex-shrink: 0; }
.wishlist-icon:hover { color: red; }
.product-img { margin: 10px auto 40px auto; width: 85%; transition: var(--transition); }
.product-card:hover .product-img { transform: scale(1.05); }
.card-bottom { display: flex; justify-content: space-between; align-items: center; }
.price-rating { font-weight: 800; font-size: 15px; font-family: var(--font-body); }
.price-rating span { font-weight: 600; font-size: 12px; color: #ffb800; margin-left: 8px; }
.btn-add { padding: 8px 16px; border: 1px solid var(--black); border-radius: 999px; background: transparent; font-size: 12px; font-weight: 700; cursor: pointer; transition: var(--transition); font-family: var(--font-body); }
.btn-add:hover { background: var(--black); color: var(--white); }

/* ================= 6. BEST SHOES COLLECTION ================= */
.best-collection { margin-bottom: 60px; text-align: center; }
.best-collection h2 {
    font-family: var(--font-serif); /* Playfair Display */
    font-size: clamp(36px, 4vw, 44px);
    font-weight: 700;
}

.collection-layout { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: center; padding: 30px 0 0; max-width: 1000px; margin: 0 auto; }
.pill-banner { width: 100%; height: auto; aspect-ratio: 1 / 2.2; border-radius: 999px; background-color: var(--black); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 5%; transition: var(--transition); cursor: pointer; position: relative; overflow: hidden; }
.pill-bg-image { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; z-index: 0; }
.pill-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.4); backdrop-filter: blur(8px); opacity: 0; transition: all 0.4s ease; z-index: 1; }
.pill-banner h3 { font-family: var(--font-heading); font-size: clamp(24px, 2.5vw, 36px); line-height: 1.1; color: var(--white); z-index: 2; opacity: 0; transform: translateY(20px); transition: all 0.4s ease; }
.pill-banner:hover .pill-overlay { opacity: 1; }
.pill-banner:hover h3 { opacity: 1; transform: translateY(0); }
.pill-banner:hover .pill-bg-image { transform: scale(1.05); }

.best-collection-desc {
    font-family: var(--font-body); /* Quicksand */
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-text);
    margin: 30px auto 0;
    max-width: 500px;
    line-height: 1.6;
}

/* ... 3D Model Wrapper giữ nguyên ... */
.model-wrapper { width: 100%; height: auto; aspect-ratio: 1 / 2.2; border-radius: 999px; background-color: #E2E2E2; position: relative; cursor: pointer; }
.model-img-inner { width: 135%; height: 135%; object-fit: contain; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); filter: drop-shadow(10px 15px 25px rgba(0,0,0,0.25)); transition: transform 0.4s ease; z-index: 2; }
.model-wrapper:hover .model-img-inner { transform: translate(-50%, -50%) scale(1.02) translateY(-10px); }

/* ================= 7. CONTACT SECTION ================= */
.contact-section { margin-bottom: 120px; margin-top: 80px; }
.contact-header { text-align: center; margin-bottom: 60px; }

.contact-header h2 {
    font-family: var(--font-serif); /* Playfair Display */
    font-size: clamp(48px, 6vw, 80px);
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.1;
}

.contact-header p {
    font-family: var(--font-body); /* Quicksand */
    color: var(--gray-text);
    font-size: 16px;
    font-weight: 500;
    max-width: 500px;
    margin: 10px auto;
}

.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: flex-start; }
.contact-info { background-color: var(--gray-light); padding: 60px; border-radius: 24px; height: 100%; }

.contact-info h3 {
    font-family: var(--font-serif); /* Playfair Display */
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 40px;
}

.info-block { margin-bottom: 32px; display: flex; gap: 20px; align-items: flex-start; }
.info-block i { font-size: 24px; margin-top: 4px; }
.info-block h4 { font-family: var(--font-heading); font-size: 14px; color: var(--gray-text); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.info-block p { font-family: var(--font-body); font-size: 16px; font-weight: 600; line-height: 1.5; }

.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label { 
    font-family: var(--font-body); /* Quicksand */
    font-size: 13px; 
    font-weight: 700; 
    text-transform: uppercase;
}

.form-group input, .form-group textarea {
    padding: 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: var(--font-body); /* Quicksand */
    font-size: 16px;
    font-weight: 500;
    outline: none;
    transition: var(--transition);
    background-color: var(--gray-light);
}

.form-group input:focus, .form-group textarea:focus { border-color: var(--black); background-color: var(--white); }
.form-group textarea { resize: vertical; min-height: 160px; }

.btn-submit {
    padding: 18px 32px;
    background-color: var(--black);
    color: var(--white);
    border: none;
    border-radius: 999px;
    font-family: var(--font-body); /* Quicksand */
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 16px;
}
.btn-submit:hover { background-color: var(--gray-text); }

/* ================= 8. VALUES SECTION ================= */
.values-section { background-color: var(--black); color: var(--white); padding: 100px 0; margin-bottom: 80px; }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 60px; }
.value-card h3 { font-family: var(--font-heading); font-size: 32px; margin-bottom: 16px; letter-spacing: 1px; }
.value-card p { font-family: var(--font-body); color: #AAAAAA; font-size: 15px; font-weight: 500; line-height: 1.6; }
.value-card i { font-size: 32px; margin-bottom: 24px; }

/* ================= 9. FOOTER ================= */
.footer-features { display: flex; justify-content: space-between; padding: 40px 0 60px; }
.feature-item { font-family: var(--font-body); display: flex; align-items: center; gap: 12px; color: var(--black); font-size: 14px; font-weight: 700; transition: var(--transition); cursor: pointer; }
.feature-item i { font-size: 20px; }
.feature-item:hover { color: var(--gray-text); }

/* ================= RESPONSIVE ================= */
@media (max-width: 1024px) {
    .hero, .contact-layout { grid-template-columns: 1fr; gap: 40px; }
    .hero-text { text-align: center; margin: 0 auto; }
    .hero-text p { margin-left: auto; margin-right: auto; }
    .btn-group { justify-content: center; }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .collection-layout { grid-template-columns: repeat(2, 1fr); }
    .carousel-next { display: none; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .product-grid { grid-template-columns: 1fr; }
    .values-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .form-row { grid-template-columns: 1fr; }
    .footer-features { flex-direction: column; align-items: center; gap: 24px; }
}