/**
 * aureoneurope.com Stylesheet
 *
 * Mobile-first, responsive design
 * Clean, professional corporate styling
 */

/* ============================================
   CSS Variables & Reset
   ============================================ */

:root {
    /* Colors */
    --color-primary: #0066cc;
    --color-primary-dark: #004c99;
    --color-secondary: #00509e;
    --color-accent: #ff6b35;
    --color-gold: #c9a961;
    --color-gold-dark: #a68b4f;
    --color-text: #2c3e50;
    --color-text-light: #5a6c7d;
    --color-background: #ffffff;
    --color-background-alt: #f8f9fa;
    --color-border: #e1e8ed;
    --color-success: #28a745;

    /* Dark Theme Colors */
    --color-dark-bg: #2b2d31;
    --color-dark-bg-light: #3a3d42;
    --color-dark-text: #ffffff;
    --color-dark-border: #4a4d52;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;

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

    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

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

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

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

/* ============================================
   Typography
   ============================================ */

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
}

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

a:hover {
    color: var(--color-gold-dark);
}

/* ============================================
   Layout & Container
   ============================================ */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section:nth-child(even) {
    background-color: var(--color-background-alt);
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.site-header {
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gold);
}

.logo a {
    display: inline-block;
    line-height: 0;
}

.logo-img {
    height: 60px;
    width: auto;
    display: block;
    background: transparent;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transition: opacity var(--transition-speed);
}

.logo-img:hover {
    opacity: 0.8;
}

.logo {
    background: transparent;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.nav-menu a:hover {
    background-color: var(--color-background-alt);
    color: var(--color-gold);
}

.btn-nav-contact {
    background-color: var(--color-gold) !important;
    color: #1a1c1f !important;
}

.btn-nav-contact:hover {
    background-color: var(--color-gold-dark) !important;
}

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

.hero {
    background: linear-gradient(135deg, #2b2d31 0%, #1a1c1f 100%);
    color: white;
    padding: var(--spacing-xxl) 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    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-xl);
    opacity: 0.95;
    line-height: 1.7;
}

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

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--color-gold);
    color: #1a1c1f;
}

.btn-primary:hover {
    background-color: var(--color-gold-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.25);
    border-color: white;
}

.btn-outline {
    background-color: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

/* ============================================
   About Section
   ============================================ */

.section-about {
    text-align: center;
}

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

.about-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    text-align: left;
}

/* ============================================
   Group Structure Cards
   ============================================ */

.group-structure {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.group-card {
    background: var(--color-dark-bg);
    border: 2px solid var(--color-dark-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    color: white;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), border-color var(--transition-speed);
}

.group-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.group-card.parent-org {
    border-color: var(--color-gold);
    background: linear-gradient(135deg, #2b2d31 0%, #3a3d42 100%);
}

.group-card.holding {
    border-color: var(--color-gold);
    background: linear-gradient(135deg, #2b2d31 0%, #3a3d42 100%);
}

.group-card h3 {
    color: white;
}

.group-card p {
    color: rgba(255, 255, 255, 0.9);
}

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

.card-role {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.card-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--color-gold);
    font-weight: 600;
}

.group-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.group-card-link:hover {
    color: inherit;
}

.group-card-link .group-card {
    cursor: pointer;
}

.group-card-link:hover .group-card {
    border-color: var(--color-gold);
}

.group-card-link:hover .card-link {
    text-decoration: underline;
    color: var(--color-gold-dark);
}

/* ============================================
   Licensing & IP Section
   ============================================ */

.licensing-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.ip-portfolio, .licensing-services {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.ip-list, .services-list {
    list-style: none;
}

.ip-list li, .services-list li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.ip-list li:last-child, .services-list li:last-child {
    border-bottom: none;
}

.ip-icon {
    color: var(--color-gold);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.service-icon {
    color: var(--color-gold);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.licensing-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--border-radius);
}

.inline-link {
    font-weight: 600;
    text-decoration: underline;
}

/* ============================================
   Location Section
   ============================================ */

.location-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.location-address {
    background: var(--color-background-alt);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-dark-bg);
    margin: var(--spacing-md) 0;
}

.region-list {
    list-style: none;
    margin-top: var(--spacing-md);
}

.region-list li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.0rem;
}

.region-icon {
    color: var(--color-gold);
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ============================================
   Contact Section
   ============================================ */

.section-contact {
    text-align: center;
}

.contact-content {
    max-width: 800px;
    margin: var(--spacing-xl) auto;
}

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

.contact-item {
    background: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.contact-link {
    font-size: 1.125rem;
    font-weight: 600;
    word-break: break-word;
}

.contact-cta {
    margin-top: var(--spacing-xl);
}

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

.site-footer {
    background: linear-gradient(135deg, #2b2d31 0%, #1a1c1f 100%);
    color: white;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

.footer-section h3 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-section p, .footer-section a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

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

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

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

.footer-address {
    line-height: 1.8;
}

.footer-email {
    word-break: break-word;
}

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

.copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ============================================
   Responsive Design - Mobile
   ============================================ */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .hero {
        min-height: 60vh;
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    /* Mobile Logo */
    .logo-img {
        height: 40px;
    }

    /* Mobile Navigation */
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 60px);
        background: white;
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-lg);
        box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
        transition: left var(--transition-speed);
        gap: var(--spacing-sm);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu a {
        width: 100%;
    }

    .hamburger {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--color-text);
        position: relative;
    }

    .hamburger::before,
    .hamburger::after {
        content: '';
        position: absolute;
        width: 24px;
        height: 2px;
        background: var(--color-text);
        left: 0;
    }

    .hamburger::before { top: -7px; }
    .hamburger::after { top: 7px; }

    /* Adjust sections */
    .section {
        padding: var(--spacing-xl) 0;
    }

    .group-structure,
    .licensing-content,
    .location-content,
    .contact-info {
        grid-template-columns: 1fr;
    }

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

/* ============================================
   Tablet & Above
   ============================================ */

@media (min-width: 769px) {
    .hero-title {
        font-size: 3rem;
    }
}

/* ============================================
   Utilities
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ============================================
   Modal Styles
   ============================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease-in-out;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: linear-gradient(135deg, #2b2d31 0%, #1a1c1f 100%);
    margin: auto;
    padding: 0;
    border: 2px solid var(--color-gold);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease-in-out;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.modal-header {
    background: var(--color-dark-bg);
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--color-gold);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: white;
    font-size: 1.75rem;
}

.modal-close {
    background: transparent;
    border: 2px solid var(--color-gold);
    color: var(--color-gold);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.modal-close:hover {
    background: var(--color-gold);
    color: var(--color-dark-bg);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    color: white;
}

.modal-body h3 {
    color: var(--color-gold);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
}

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

.modal-body ul li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
}

.modal-body a {
    color: var(--color-gold);
    text-decoration: underline;
}

.modal-body a:hover {
    color: var(--color-gold-dark);
}

.modal-body em {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Modal Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Mobile Modal Adjustments */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .modal-header {
        padding: var(--spacing-md);
    }

    .modal-header h2 {
        font-size: 1.25rem;
    }

    .modal-body {
        padding: var(--spacing-md);
    }

    .modal-close {
        width: 35px;
        height: 35px;
        font-size: 1.25rem;
    }
}