/* ============================================
   Premier Stone Importers - Main Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #c9a959;
    --accent-hover: #b8963e;
    --text-dark: #333333;
    --text-light: #666666;
    --text-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --border-color: #e0e0e0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Open Sans', Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--text-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary-color);
}

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

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

ul {
    list-style: none;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--text-white);
}

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

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

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

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

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

/* ============================================
   Header Styles
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--text-white);
    box-shadow: var(--shadow);
}

.top-bar {
    background-color: var(--primary-color);
    color: var(--text-white);
    padding: 8px 0;
    font-size: 13px;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info {
    display: flex;
    gap: 25px;
}

.contact-info a {
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-info a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--text-white);
    font-weight: 600;
    font-size: 12px;
}

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

/* Main Navigation */
.main-nav {
    padding: 15px 0;
    background-color: var(--text-white);
}

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

.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.logo-subtext {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 35px;
}

.nav-links > li {
    position: relative;
}

.nav-links > li > a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
    padding: 10px 0;
    display: block;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
    color: var(--accent-color);
}

/* Dropdown Menu */
.has-dropdown {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--text-white);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown li a {
    display: block;
    padding: 12px 20px;
    font-size: 14px;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
}

.dropdown li:last-child a {
    border-bottom: none;
}

.dropdown li a:hover {
    background-color: var(--bg-light);
    color: var(--accent-color);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    margin-top: 100px;
    height: 80vh;
    min-height: 500px;
    position: relative;
}

.hero-slider {
    height: 100%;
}

.hero-slide {
    height: 100%;
    display: flex;
    align-items: center;
    background-color: var(--primary-color);
}

.hero-content {
    max-width: 700px;
    color: var(--text-white);
    text-align: center;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 52px;
    color: var(--text-white);
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 35px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ============================================
   Features Section
   ============================================ */

.features {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 40px 25px;
    background-color: var(--text-white);
    border-radius: 5px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* ============================================
   Section Headers
   ============================================ */

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 40px;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
}

/* ============================================
   Products Overview
   ============================================ */

.products-overview {
    padding: 100px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    display: block;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 300px;
    position: relative;
    background-color: var(--primary-color);
    display: flex;
    align-items: flex-end;
}

.product-overlay {
    padding: 30px;
    color: var(--text-white);
    width: 100%;
}

.product-overlay h3 {
    font-size: 28px;
    color: var(--text-white);
    margin-bottom: 10px;
}

.product-overlay p {
    font-size: 14px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.btn-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-color);
}

/* ============================================
   Applications Section
   ============================================ */

.applications {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.application-card {
    background-color: var(--text-white);
    padding: 40px 30px;
    border-radius: 5px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.application-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.application-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.application-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* ============================================
   Why Choose Us
   ============================================ */

.why-choose-us {
    padding: 100px 0;
}

.why-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.why-text h2 {
    font-size: 36px;
    margin-bottom: 30px;
}

.benefits-list {
    margin-bottom: 30px;
}

.benefits-list li {
    margin-bottom: 20px;
    padding-left: 25px;
    position: relative;
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.benefits-list li strong {
    display: block;
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.benefits-list li p {
    font-size: 14px;
    color: var(--text-light);
}

.why-image {
    height: 500px;
}

.image-placeholder {
    height: 100%;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 18px;
}

/* ============================================
   Colour Categories
   ============================================ */

.colour-categories {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.colours-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 15px;
}

.colour-card {
    aspect-ratio: 1;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.colour-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Testimonials
   ============================================ */

.testimonials {
    padding: 100px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: 5px;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 80px;
    font-family: var(--font-heading);
    color: var(--accent-color);
    opacity: 0.3;
    line-height: 1;
}

.testimonial-content {
    position: relative;
    z-index: 1;
}

.testimonial-content p {
    font-size: 16px;
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 25px;
    line-height: 1.8;
}

.testimonial-author strong {
    display: block;
    font-size: 16px;
    color: var(--primary-color);
}

.testimonial-author span {
    font-size: 14px;
    color: var(--text-light);
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    text-align: center;
}

.cta-content h2 {
    font-size: 42px;
    color: var(--text-white);
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    color: var(--text-white);
    opacity: 0.9;
    margin-bottom: 35px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--primary-color);
    color: var(--text-white);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
    font-size: 20px;
    color: var(--text-white);
    margin-bottom: 25px;
}

.footer-section p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
}

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

.footer-section ul li a {
    font-size: 14px;
    opacity: 0.8;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-section address {
    font-style: normal;
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
}

.footer-section address a:hover {
    color: var(--accent-color);
}

.opening-hours {
    margin-top: 20px;
    font-size: 14px;
    opacity: 0.8;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.footer-social a {
    font-weight: 600;
    font-size: 14px;
    opacity: 0.8;
}

.footer-social a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-bottom {
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    opacity: 0.7;
}

.footer-bottom a {
    margin-left: 15px;
}

.footer-bottom a:hover {
    color: var(--accent-color);
}

/* ============================================
   Page Header (for internal pages)
   ============================================ */

.page-header {
    margin-top: 100px;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    color: var(--text-white);
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    color: var(--text-white);
    opacity: 0.9;
}

.breadcrumb {
    margin-top: 20px;
}

.breadcrumb a,
.breadcrumb span {
    font-size: 14px;
    color: var(--text-white);
    opacity: 0.8;
}

.breadcrumb a:hover {
    opacity: 1;
    color: var(--accent-color);
}

/* ============================================
   Product Listing Page
   ============================================ */

.product-listing {
    padding: 80px 0;
}

.product-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    color: var(--text-light);
}

.filter-group select {
    padding: 12px 20px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 14px;
    min-width: 180px;
    cursor: pointer;
}

.stone-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.stone-card {
    background-color: var(--text-white);
    border-radius: 5px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stone-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stone-image {
    height: 200px;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.stone-info {
    padding: 20px;
}

.stone-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.stone-info .stone-type {
    font-size: 12px;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stone-info .stone-origin {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 5px;
}

/* ============================================
   Contact Page
   ============================================ */

.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-form h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 15px;
    font-family: var(--font-body);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Form Status Messages */
.form-status {
    padding: 20px;
    border-radius: 5px;
    margin-top: 20px;
    font-size: 15px;
}

.form-status.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.form-status p {
    margin: 0;
}

/* Submit button states */
#submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.contact-info-section h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.contact-details {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.contact-item-text p {
    font-size: 14px;
    color: var(--text-light);
}

.contact-item-text a {
    color: var(--accent-color);
}

.map-container {
    height: 300px;
    background-color: var(--bg-light);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

/* ============================================
   About Page
   ============================================ */

.about-section {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 36px;
    margin-bottom: 25px;
}

.about-text p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-image {
    height: 450px;
    background-color: var(--bg-light);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.stats-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 16px;
    color: var(--text-dark);
}

/* ============================================
   Gallery Page
   ============================================ */

.gallery-section {
    padding: 80px 0;
}

.gallery-filters {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.gallery-filter-btn {
    padding: 12px 25px;
    background-color: var(--bg-light);
    border: none;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-filter-btn:hover,
.gallery-filter-btn.active {
    background-color: var(--accent-color);
    color: var(--text-white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 5px;
    aspect-ratio: 1;
    background-color: var(--bg-light);
}

.gallery-item:nth-child(5),
.gallery-item:nth-child(10) {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}

.gallery-item-info h4 {
    color: var(--text-white);
    font-size: 16px;
    margin-bottom: 5px;
}

.gallery-item-info span {
    color: var(--text-white);
    opacity: 0.8;
    font-size: 13px;
}

/* ============================================
   Responsive Styles
   ============================================ */

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stone-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }

    .hero {
        margin-top: 70px;
        height: 70vh;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--text-white);
        flex-direction: column;
        gap: 0;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        display: none;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links > li > a {
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: 20px;
        display: none;
    }

    .has-dropdown:hover .dropdown {
        display: block;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .applications-grid {
        grid-template-columns: 1fr;
    }

    .why-content {
        grid-template-columns: 1fr;
    }

    .why-image {
        height: 300px;
    }

    .colours-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .cta-buttons {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .page-header h1 {
        font-size: 36px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .stone-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-item:nth-child(5),
    .gallery-item:nth-child(10) {
        grid-column: span 1;
        grid-row: span 1;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .colours-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stone-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .product-filters {
        flex-direction: column;
    }

    .filter-group select {
        width: 100%;
    }
}