/**
 * Britannias.net - Main Stylesheet
 * Mobile-first responsive design
 */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Royal Mint Official Palette */
    --primary-color: #002D54;
    /* Royal Navy */
    --primary-light: #004682;
    --primary-dark: #001D35;
    --secondary-color: #B99C5D;
    /* Husk Gold */
    --secondary-light: #D4BD8A;
    --secondary-dark: #8C7745;

    /* Neutrals */
    --text-primary: #1A1A1A;
    --text-secondary: #4A4A4A;
    --text-light: #767676;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F4F1EB;
    /* Spring Wood Cream */
    --bg-dark: #001D35;
    --border-color: #E5E1D8;

    /* Accent colors */
    --success: #2E7D32;
    --warning: #F57C00;
    --error: #D32F2F;
    --info: #0277BD;

    /* Typography - Removing the "curly" font */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--primary-light);
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ===== Header ===== */
.site-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: white;
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-display);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
}

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

.main-nav a {
    color: white;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-base);
}

.main-nav a:hover,
.main-nav li.active a {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: white;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

@media (min-width: 768px) {
    .main-nav ul {
        display: flex;
    }

    .mobile-menu-toggle {
        display: none;
    }
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: white;
    padding: var(--spacing-lg) 0;
}

.page-header h1 {
    color: white;
    margin-bottom: 0;
}

.page-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .hero {
        padding: var(--spacing-xl) 0 3rem;
    }

    .hero-title {
        font-size: 3.5rem;
    }
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: var(--primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--primary-dark);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===== Sections ===== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ===== About Section ===== */
.about-britannia {
    background: var(--bg-secondary);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text h2 {
    margin-bottom: var(--spacing-md);
}

.about-text p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.feature {
    text-align: center;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.feature p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Retailers Grid ===== */
.where-to-buy {
    background: white;
}

.retailers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.retailer-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-base);
    border: 1px solid var(--border-color);
}

.retailer-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.retailer-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.retailer-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* ===== CTA Section ===== */
.browse-by-year-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.investment-disclaimer {
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.affiliate-disclosure {
    margin-bottom: var(--spacing-md);
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
}

.affiliate-disclosure a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.copyright {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Legal Pages ===== */
.legal-page {
    padding: var(--spacing-xl) 0;
}

.legal-content {
    max-width: 850px;
    margin: 0 auto;
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.legal-content section {
    margin-bottom: var(--spacing-lg);
}

.legal-content h2 {
    color: var(--primary-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.legal-content h3 {
    color: var(--primary-light);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.legal-content p {
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.legal-content ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.legal-content li {
    margin-bottom: 0.25rem;
    line-height: 1.6;
}

.legal-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ===== Breadcrumbs ===== */
.breadcrumbs {
    margin-bottom: var(--spacing-md);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb-list li::after {
    content: "/";
    margin: 0 var(--spacing-xs);
    opacity: 0.5;
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    color: white;
    text-decoration: none;
}

.breadcrumb-list a:hover {
    text-decoration: underline;
}

.breadcrumb-list li.active {
    color: white;
    font-weight: 600;
}

/* ===== Coin Detail Overhaul ===== */
.coin-detail {
    padding: var(--spacing-xl) 0;
}

.coin-detail-layout {
    display: grid;
    gap: var(--spacing-xl);
    align-items: start;
}

@media (min-width: 992px) {
    .coin-detail-layout {
        grid-template-columns: 1fr 1.2fr;
    }
}

.coin-images {
    position: sticky;
    top: 100px;
}

.main-image {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
}

.main-image img {
    max-width: 100%;
    height: auto;
    max-height: 450px;
    object-fit: contain;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
}

.gallery-thumb {
    background: white;
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.coin-content .coin-title {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-sm);
}

.coin-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.badge {
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-year {
    background: var(--border-color);
    color: var(--text-primary);
}

.badge-metal {
    background: var(--secondary-color);
    color: white;
}

.badge-featured {
    background: var(--primary-color);
    color: white;
}

.coin-description {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

.specs-table tr {
    border-bottom: 1px solid var(--border-color);
}

.specs-table th {
    text-align: left;
    padding: 0.75rem 0;
    width: 40%;
    color: var(--text-secondary);
    font-weight: 600;
}

.specs-table td {
    padding: 0.75rem 0;
    color: var(--text-primary);
    font-weight: 700;
}

.where-to-buy-section {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-xl);
}

.buy-options {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.buy-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 1rem 1.5rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.buy-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--secondary-color);
}

.buy-icon {
    font-size: 1.5rem;
}

.buy-text strong {
    display: block;
    color: var(--text-primary);
}

.buy-text small {
    color: var(--text-secondary);
}

.coin-long-description {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.related-coins {
    margin-top: var(--spacing-2xl);
}

.related-coins h2 {
    margin-bottom: var(--spacing-lg);
}

/* ===== Responsive Utilities ===== */
@media (max-width: 767px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }
}