/*
Solana-M Website - Modern Design with Animations
*/

/* Optimized font loading with display=swap for better performance */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
    --primary-color: #2c5530;
    --primary-dark: #1e3a21;
    --primary-light: #3d6b42;
    --secondary-color: #d4a574;
    --secondary-light: #e8c9a0;
    --accent-color: #8b6f47;
    --text-color: #2d3436;
    --text-light: #636e72;
    --light-bg: #f8f6f0;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.2);
    --gradient-primary: linear-gradient(135deg, #2c5530 0%, #1e3a21 50%, #3d6b42 100%);
    --gradient-secondary: linear-gradient(135deg, #d4a574 0%, #e8c9a0 100%);
    --gradient-hero: linear-gradient(135deg, rgba(44, 85, 48, 0.95) 0%, rgba(30, 58, 33, 0.9) 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    background-color: var(--light-bg);
    overflow-x: hidden;
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Removed unused animations for better performance */

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Removed unused shimmer animation */

/* Header Styles */
.site-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 1.2rem 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: padding 0.3s ease, box-shadow 0.3s ease;
    will-change: padding, box-shadow;
}

.site-header.scrolled {
    padding: 0.8rem 0;
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Logo Styles - Elegant Minimalist Design */
@keyframes logoFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes sunRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes sunFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@keyframes sunRotateFloat {
    0% {
        transform: translateY(0) rotate(0deg) scale(1.1);
    }
    50% {
        transform: translateY(-8px) rotate(180deg) scale(1.1);
    }
    100% {
        transform: translateY(0) rotate(360deg) scale(1.1);
    }
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 4px 0;
    animation: logoFadeIn 0.8s ease-out;
}

.logo-sun {
    width: 32px;
    height: 32px;
    animation: sunFloat 4s ease-in-out infinite;
    filter: drop-shadow(0 2px 4px rgba(212, 165, 116, 0.4));
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.logo-text-main {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -1px;
    line-height: 1;
    transition: all 0.3s ease;
    position: relative;
}

.logo-separator {
    width: 2px;
    height: 32px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        var(--secondary-color) 20%, 
        var(--secondary-color) 80%, 
        transparent 100%);
    border-radius: 2px;
    transition: all 0.3s ease;
    opacity: 0.6;
}

.logo-text-accent {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--secondary-color);
    letter-spacing: -1px;
    line-height: 1;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}

.logo-text-accent::before {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--secondary-color);
    opacity: 0.2;
    border-radius: 2px;
    transition: all 0.3s ease;
    transform: scaleX(0);
    transform-origin: left;
}

.logo:hover .logo-text-accent::before {
    opacity: 0.5;
    transform: scaleX(1);
}

.logo:hover .logo-text-main {
    color: rgba(255, 255, 255, 0.95);
    transform: translateX(-2px);
}

.logo:hover .logo-text-accent {
    transform: translateX(2px);
    color: var(--secondary-light);
}

.logo:hover .logo-separator {
    height: 36px;
    opacity: 1;
    background: linear-gradient(180deg, 
        transparent 0%, 
        var(--secondary-light) 20%, 
        var(--secondary-light) 80%, 
        transparent 100%);
}

.logo:hover .logo-sun {
    animation: sunRotateFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 4px 8px rgba(212, 165, 116, 0.6));
}

.logo:hover {
    transform: translateY(-2px);
}

/* Subtle glow effect on hover */
.logo::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(212, 165, 116, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: -1;
}

.logo:hover::after {
    opacity: 1;
}

.language-switcher {
    display: flex;
    align-items: center;
}

.lang-dropdown {
    position: relative;
}

.lang-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.15);
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.2);
    padding: 8px 16px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: inherit;
}

.lang-dropdown-btn:hover {
    background: rgba(255,255,255,0.25);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

.lang-dropdown-btn svg {
    transition: transform 0.3s ease;
}

.lang-dropdown.active .lang-dropdown-btn svg {
    transform: rotate(180deg);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
}

.lang-dropdown.active .lang-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--light-bg);
}

.lang-option:last-child {
    border-bottom: none;
}

.lang-option:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

.lang-flag {
    font-size: 1.2rem;
    display: inline-block;
}

/* Navigation */
.main-nav {
    background: var(--white);
    padding: 1.2rem 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 70px;
    z-index: 999;
    transition: transform 0.3s ease;
    will-change: transform;
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    position: relative;
    letter-spacing: 0.3px;
}

.main-nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.main-nav a:hover::before,
.main-nav a.active::before {
    width: 80%;
}

.main-nav a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
    background: var(--gradient-hero),
                url('../images/oil-hero.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--white);
    padding: 150px 20px;
    text-align: center;
    margin-bottom: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0); /* Force GPU acceleration */
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(212, 165, 116, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
    letter-spacing: -1px;
    animation: fadeInUp 1s ease-out;
    line-height: 1.1;
}

.hero-section p {
    font-size: 1.5rem;
    max-width: 700px;
    margin: 0 auto;
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease-out 0.2s both;
    line-height: 1.6;
}

/* Content Sections */
.content-section {
    padding: 100px 20px;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    background: var(--light-bg);
    position: relative;
    z-index: 1;
    will-change: opacity, transform;
}

.content-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 60px;
    position: relative;
    padding-bottom: 25px;
    letter-spacing: -1px;
    text-shadow: none;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-secondary);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(212, 165, 116, 0.4);
}

.section-title::before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Product Description */
.product-description {
    background: var(--white);
    padding: 60px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.product-description::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-secondary);
}

.product-description p {
    font-size: 1.2rem;
    line-height: 1.9;
    margin-bottom: 25px;
    color: var(--text-light);
    font-weight: 400;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-bg) 100%);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                box-shadow 0.4s ease,
                border-color 0.4s ease,
                background 0.4s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    will-change: transform;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 165, 116, 0.1), transparent);
    transition: left 0.5s;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
    will-change: transform;
}

.feature-card:nth-child(2) .feature-icon {
    animation-delay: 0.5s;
}

.feature-card:nth-child(3) .feature-icon {
    animation-delay: 1s;
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
}

/* Image Gallery */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    aspect-ratio: 4/3;
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    cursor: pointer;
    will-change: transform;
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 85, 48, 0.8) 0%, rgba(30, 58, 33, 0.9) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

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

.gallery-item:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
    transform: translateZ(0); /* Force GPU acceleration */
}

.gallery-item:hover img {
    transform: scale(1.15);
}

.gallery-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 500;
}

/* Contact Section - Alternative Design */
.contact-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.contact-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                box-shadow 0.4s ease,
                border-color 0.4s ease,
                background 0.4s ease;
    border: 1px solid rgba(212, 165, 116, 0.15);
    position: relative;
    overflow: hidden;
    will-change: transform;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.contact-card:hover::before {
    transform: scaleX(1);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.phone-card:hover {
    background: linear-gradient(135deg, rgba(44, 85, 48, 0.02) 0%, var(--white) 100%);
}

.email-card:hover {
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.02) 0%, var(--white) 100%);
}

.contact-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--white) 100%);
    color: var(--primary-color);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.phone-card .contact-card-icon {
    background: linear-gradient(135deg, rgba(44, 85, 48, 0.1) 0%, rgba(44, 85, 48, 0.05) 100%);
}

.email-card .contact-card-icon {
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.15) 0%, rgba(212, 165, 116, 0.05) 100%);
}

.contact-card:hover .contact-card-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-md);
}

.contact-card-icon svg {
    width: 28px;
    height: 28px;
}

.contact-card h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.3px;
}

.contact-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    margin-bottom: 12px;
    transition: all 0.3s ease;
    line-height: 1.4;
    word-break: break-all;
}

.contact-value:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.contact-hint {
    color: var(--text-light);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.contact-footer {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--white) 100%);
    border-radius: 15px;
    border: 1px solid rgba(212, 165, 116, 0.2);
}

.contact-footer p {
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.7;
    margin: 0;
    max-width: 600px;
    margin: 0 auto;
}

/* Footer */
.site-footer {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 60px 20px;
    text-align: center;
    margin-top: 100px;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
}

.site-footer p {
    margin: 15px 0;
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Scroll Animations */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Disable parallax on mobile for better performance */
    .hero-section {
        padding: 80px 20px;
        min-height: 70vh;
        background-attachment: scroll;
        will-change: auto;
        transform: none;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-section p {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2.2rem;
        margin-bottom: 40px;
        padding-bottom: 20px;
    }
    
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        gap: 10px;
    }
    
    .logo-text-main,
    .logo-text-accent {
        font-size: 1.9rem;
    }
    
    .logo-separator {
        height: 28px;
    }
    
    .logo:hover .logo-separator {
        height: 32px;
    }
    
    .logo-sun {
        width: 28px;
        height: 28px;
    }
    
    .lang-dropdown-btn {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .lang-dropdown-menu {
        right: 0;
        min-width: 160px;
    }
    
    .main-nav {
        top: auto;
        position: relative;
        padding: 0.8rem 0;
    }
    
    .main-nav ul {
        flex-direction: row;
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .main-nav a {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
    
    .content-section {
        padding: 60px 15px;
        margin-bottom: 40px;
    }
    
    .product-description {
        padding: 30px 20px;
        border-radius: 15px;
    }
    
    .product-description p {
        font-size: 1rem;
        line-height: 1.7;
    }
    
    .product-features {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 40px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .feature-icon {
        font-size: 3rem;
    }
    
    .contact-main {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-bottom: 35px;
    }
    
    .contact-card {
        padding: 30px 25px;
    }
    
    .contact-card-header {
        margin-bottom: 20px;
    }
    
    .contact-card-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-card-icon svg {
        width: 24px;
        height: 24px;
    }
    
    .contact-card h3 {
        font-size: 1.2rem;
    }
    
    .contact-value {
        font-size: 1.3rem;
    }
    
    .contact-hint {
        font-size: 0.9rem;
    }
    
    .contact-footer {
        padding: 25px 20px;
    }
    
    .contact-footer p {
        font-size: 1rem;
    }
    
    .image-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 40px 0;
    }
    
    .gallery-item {
        border-radius: 15px;
    }
    
    .site-footer {
        padding: 40px 20px;
        margin-top: 60px;
    }
    
    .site-footer p {
        font-size: 0.95rem;
    }
    
    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 60px 15px;
        min-height: 60vh;
        will-change: auto;
        transform: none;
    }
    
    .hero-section h1 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-section p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
        padding-bottom: 15px;
    }
    
    .section-title::after {
        width: 80px;
        height: 3px;
    }
    
    .content-section {
        padding: 40px 15px;
    }
    
    .product-description {
        padding: 25px 15px;
    }
    
    .product-description p {
        font-size: 0.95rem;
    }
    
    .feature-card {
        padding: 25px 15px;
    }
    
    .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }
    
    .feature-card h3 {
        font-size: 1.3rem;
    }
    
    .contact-card {
        padding: 25px 20px;
    }
    
    .contact-card-icon {
        width: 45px;
        height: 45px;
        border-radius: 12px;
    }
    
    .contact-card-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .contact-card h3 {
        font-size: 1.1rem;
    }
    
    .contact-value {
        font-size: 1.2rem;
    }
    
    .contact-hint {
        font-size: 0.85rem;
    }
    
    .contact-footer {
        padding: 20px 15px;
    }
    
    .contact-footer p {
        font-size: 0.95rem;
    }
    
    .logo-text-main,
    .logo-text-accent {
        font-size: 1.7rem;
    }
    
    .logo-separator {
        height: 24px;
        width: 1.5px;
    }
    
    .logo:hover .logo-separator {
        height: 28px;
    }
    
    .logo {
        gap: 6px;
    }
    
    .logo-sun {
        width: 24px;
        height: 24px;
    }
    
    .lang-dropdown-btn {
        padding: 5px 10px;
        font-size: 0.8rem;
    }
    
    .lang-flag {
        font-size: 1rem;
    }
    
    .main-nav ul {
        gap: 0.5rem;
    }
    
    .main-nav a {
        font-size: 0.85rem;
        padding: 0.3rem 0.6rem;
    }
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-xl);
    background: var(--gradient-secondary);
}

.scroll-to-top:active {
    transform: translateY(-3px) scale(1.05);
}

/* Removed unused loading animation */