/*
   GERMANIUM - Global Styles & Layout
   Aesthetics: Clean, Premium, Minimalist, Responsive
*/

@import url('variables.css');

/* 1. RESET & BASE STYLES */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

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

/* 2. TYPOGRAPHY */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-primary-dark);
    line-height: 1.25;
    font-weight: var(--weight-semibold);
}

h1 {
    font-size: clamp(2.25rem, 5vw, 4rem); /* Responsive fluid typography */
    font-weight: var(--weight-light);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    letter-spacing: -0.01em;
    font-weight: var(--weight-normal);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    font-size: 1.05rem;
    color: var(--color-text-main);
    font-weight: var(--weight-light);
}

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

/* 3. LAYOUT CONTAINERS */
.container {
    width: 100%;
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container-narrow {
    width: 100%;
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

@media (max-width: 768px) {
    .section-padding {
        padding: var(--space-xl) 0;
    }
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

/* 4. PREMIUM FLOATING HEADER */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: var(--space-md) 0;
}

.site-header.scrolled {
    background: rgba(250, 249, 246, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-sm);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(196, 181, 148, 0.15);
}

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

/* Logo Integration */
.logo-link {
    display: flex;
    align-items: center;
    height: 50px;
}

.logo-img {
    height: 100%;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
    /* For logo with background, blend multiply makes it transparent on light backgrounds! */
    mix-blend-mode: multiply;
}

/* Desktop Navbar */
.main-nav {
    display: flex;
    gap: 1.15rem;
    align-items: center;
    flex-wrap: nowrap;
}

@media (min-width: 1100px) {
    .main-nav {
        gap: 1.5rem;
    }
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.88rem;
    font-weight: var(--weight-medium);
    color: var(--color-primary-dark);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
    padding: var(--space-xs) 0;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--color-accent);
}

/* Language Selector Class Styling */
.lang-selector {
    display: inline-flex;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: var(--weight-semibold);
    letter-spacing: 0.05em;
    align-items: center;
    margin-left: 15px;
    padding-left: 15px;
    border-left: 1px solid var(--color-border);
}

.lang-link {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: var(--weight-normal);
    transition: var(--transition-fast);
}

.lang-link.active {
    color: var(--color-primary);
    font-weight: var(--weight-bold);
}

.lang-link:hover {
    color: var(--color-primary-light);
}

.lang-divider {
    color: var(--color-border);
    font-size: 0.75rem;
}

/* Mobile Hamburger Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 25px;
    height: 2px;
    margin: 5px auto;
    background-color: var(--color-primary-dark);
    transition: var(--transition-smooth);
}

@media (max-width: 992px) {
    .menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-bg-white);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-xl);
        transition: var(--transition-smooth);
        padding: var(--space-xl);
    }
    
    .main-nav.open {
        right: 0;
    }
    
    .lang-selector {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        margin-top: var(--space-sm);
        justify-content: center;
        width: 100%;
    }
    
    /* Close menu icon animation */
    .menu-toggle.open .hamburger-line:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .menu-toggle.open .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.open .hamburger-line:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}

/* 5. FOOTER STYLING */
.site-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-bg-warm);
    padding: var(--space-xxl) 0 var(--space-lg) 0;
    border-top: 1px solid rgba(250, 249, 246, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-xxl);
    margin-bottom: var(--space-xl);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

.footer-info-col p {
    color: rgba(250, 249, 246, 0.75);
    margin-top: var(--space-md);
    max-width: 400px;
    font-size: 0.95rem;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: var(--weight-semibold);
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: rgba(250, 249, 246, 0.75);
    font-size: 0.95rem;
    font-weight: var(--weight-light);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: var(--space-xs);
}

.footer-contact-list {
    list-style: none;
    font-weight: var(--weight-light);
    font-size: 0.95rem;
    color: rgba(250, 249, 246, 0.75);
}

.footer-contact-list li {
    margin-bottom: var(--space-md);
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.footer-contact-list svg {
    margin-top: 4px;
    fill: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(250, 249, 246, 0.1);
    padding-top: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(250, 249, 246, 0.85);
    font-weight: var(--weight-light);
}

.footer-bottom p,
.footer-legal-links a {
    color: rgba(250, 249, 246, 0.85);
    transition: var(--transition-fast);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

.footer-legal-links {
    display: flex;
    gap: var(--space-md);
}

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

/* 6. UTILITIES */
.text-center { text-align: center; }
.text-right { text-align: right; }
.color-accent { color: var(--color-accent); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* Section Header Utility */
.section-header {
    text-align: center;
    margin-bottom: var(--space-xxl);
}

.section-subtitle {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    font-weight: var(--weight-semibold);
    margin-bottom: var(--space-sm);
    display: block;
}

.section-header h2 {
    position: relative;
    padding-bottom: var(--space-md);
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background-color: var(--color-accent);
}

/* Page Intro Header Banner */
.page-intro {
    background-color: var(--color-accent-light);
    padding: var(--space-xxl) 0 var(--space-xl) 0;
    margin-top: 70px; /* Offset fixed header */
    border-bottom: 1px solid var(--color-border);
}

.page-intro h1 {
    margin-bottom: var(--space-sm);
}

.page-intro p {
    font-size: 1.15rem;
    color: var(--color-text-muted);
}

/* 7. SCROLL REVEAL ANIMATIONS (GPU-Accelerated Native Transitions) */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.reveal-fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.reveal-stagger-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}