/* Jewel Nexa - Premium Luxury Styles */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Montserrat:wght@300;400;500;600&display=swap');

:root {
    --primary-gold: #D4AF37;
    --dark-gold: #B8860B;
    --light-gold: #F9E29C;
    --black: #111111;
    --bg-dark: #0A0A0A;
    --bg-light: #FDFDFD;
    --white: #FFFFFF;
    --gray-light: #F4F4F4;
    --gray-mid: #888888;
    --transition-smooth: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--black);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, .font-serif {
    font-family: 'Playfair Display', serif;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-gold);
    border: 2px solid var(--primary-gold);
}

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

/* Navbar */
nav {
    height: var(--header-height);
    background-color: rgba(10, 10, 10, 0.95);
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    backdrop-filter: blur(10px);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-gold);
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
    width: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-gold);
}

nav ul {
    display: flex;
    gap: 30px;
}

nav ul li a {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 500;
}

nav ul li a:hover, nav ul li a.active {
    color: var(--primary-gold);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('assets/images/luxury_jewelry_close-up_2.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: calc(-1 * var(--header-height));
    padding-top: var(--header-height);
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

/* Section Headings */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--black);
    position: relative;
    padding-bottom: 15px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-gold);
}

/* Collections */
.grid-collections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.collection-card {
    position: relative;
    overflow: hidden;
    height: 400px;
    border-radius: 8px;
    cursor: pointer;
}

.collection-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.collection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    color: var(--white);
    transition: var(--transition-smooth);
}

.collection-card:hover img {
    transform: scale(1.1);
}

.collection-card:hover .collection-overlay {
    background: linear-gradient(to top, rgba(212, 175, 55, 0.4), transparent);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--black);
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    transition: var(--transition-smooth);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 5px rgba(212, 175, 55, 0.3);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 20px;
}

.checkbox-group input {
    width: auto;
    margin-top: 5px;
}

.checkbox-group label {
    font-size: 0.85rem;
    color: #555;
}

/* Footer */
footer {
    background-color: var(--bg-dark);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    color: var(--primary-gold);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a:hover {
    color: var(--primary-gold);
    padding-left: 5px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    nav ul {
        display: none; /* Mobile menu logic to be added in JS */
    }
}