/* Design System & Variables */
:root {
    /* Color Palette */
    --color-midnight: #0B1026; /* Deep Navy/Charcoal */
    --color-snow: #F8FAFC;     /* Crisp White */
    --color-glacier: #E2E8F0;  /* Light Grey/Blueish */
    --color-pine: #2C3E50;     /* Muted Earth Tone */
    --color-mylar: #D4AF37;    /* Metallic Gold Accent (Subtle) */
    --color-text-main: #1A202C;
    --color-text-light: #F8FAFC;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-smooth: all 0.3s ease-in-out;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

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

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--color-midnight);
    color: var(--color-snow);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    border: 1px solid var(--color-midnight);
    cursor: pointer;
}

.btn:hover {
    background-color: transparent;
    color: var(--color-midnight);
}

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

.btn-outline:hover {
    background-color: var(--color-snow);
    color: var(--color-midnight);
}

/* Header */
header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: var(--spacing-md) 0;
    color: var(--color-snow); /* Assuming hero image is dark */
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-links a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-snow);
    transition: var(--transition-smooth);
}

.hamburger-open .hamburger-line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.hamburger-open .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-open .hamburger-line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-midnight);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
        transition: right 0.3s ease-in-out;
        z-index: 105;
    }

    .nav-links.nav-open {
        right: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
        opacity: 1;
    }

    .cart-icon {
        z-index: 110;
    }
}

/* Footer */
footer {
    background-color: var(--color-midnight);
    color: var(--color-snow);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    list-style: none;
}

.copyright {
    font-size: 0.8rem;
    opacity: 0.6;
}