/* ==================== Base & Variables ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #ff4d00;
    --primary-dark: #e04400;
    --dark: #0a0a0a;
    --darker: #000000;
    --light: #ffffff;
    --gray: #888888;
    --gray-light: #f5f5f5;
    --font-primary: 'Space Grotesk', sans-serif;
    --font-heading: 'Syne', sans-serif;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.1;
}

/* ==================== Loader ==================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-text {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    color: var(--light);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ==================== Header ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.main-nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--dark);
}

.cart-btn {
    color: var(--dark);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 20px;
    position: relative;
    cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

.menu-toggle::before { top: 0; }
.menu-toggle span { top: 50%; transform: translateY(-50%); }
.menu-toggle::after { bottom: 0; }

/* ==================== Hero Section ==================== */
.hero-section {
    min-height: 100vh;
    padding: 10rem 3rem 4rem;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--gray-light) 0%, var(--light) 100%);
}

.hero-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    background: var(--primary);
    color: var(--light);
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.hero-text h1 {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 400px;
    margin-bottom: 2.5rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.btn-primary {
    display: inline-block;
    background: var(--dark);
    color: var(--light);
    padding: 1rem 2rem;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-outline {
    display: inline-block;
    background: transparent;
    color: var(--dark);
    padding: 1rem 2rem;
    border: 2px solid var(--dark);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--dark);
    color: var(--light);
}

.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
}

.hero-shoe {
    width: 100%;
    max-width: 600px;
    transform: rotate(-15deg);
    filter: drop-shadow(0 40px 60px rgba(0,0,0,0.3));
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: rotate(-15deg) translateY(0); }
    50% { transform: rotate(-15deg) translateY(-20px); }
}

.hero-stats {
    position: absolute;
    bottom: 0;
    right: 0;
    display: flex;
    gap: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-scroll {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 2rem;
}

.hero-scroll span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--gray);
}

.scroll-line {
    width: 80px;
    height: 1px;
    background: var(--gray);
    position: relative;
}

.scroll-line::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 30%;
    height: 100%;
    background: var(--primary);
    animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {
    0%, 100% { left: 0; }
    50% { left: 70%; }
}