/* värme homes Website Styles */

/* CSS Custom Properties */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --text-color: #333;
    --text-light: #666;
    --background-color: #fff;
    --overlay-color: rgba(0, 0, 0, 0.4);
    --border-color: #e1e8ed;
    
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--background-color);
    padding-top: 70px; /* Account for fixed navigation */
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: #000000;
}

.contact .section-title {
    color: white;
    font-weight: 700;
}

.contact-subtitle {
    text-align: center;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: white;
    font-weight: 300;
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

/* Navigation Styles */
.navigation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navigation.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-bottom-color: rgba(225, 232, 237, 0.8);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 70px;
}

.nav-logo {
    flex-shrink: 0;
}

.logo {
    height: 50px;
    width: auto;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.1));
}

.logo:hover {
    opacity: 0.8;
    transform: scale(1.02);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.15));
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), #2980b9);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.nav-link:hover {
    color: var(--accent-color);
    background-color: rgba(52, 152, 219, 0.08);
    transform: translateY(-1px);
}

.nav-link:hover::before {
    width: 80%;
}

.nav-link.active {
    color: var(--accent-color);
    background-color: rgba(52, 152, 219, 0.12);
    font-weight: 600;
}

.nav-link.active::before {
    width: 80%;
}

.nav-social {
    flex-shrink: 0;
}

.instagram-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.instagram-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50%;
    transform: scale(0.8);
}

.instagram-link:hover::before {
    opacity: 0.1;
    transform: scale(1);
}

.instagram-link:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.instagram-icon {
    width: 24px;
    height: 24px;
    color: var(--text-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.instagram-link:hover .instagram-icon {
    color: #e6683c;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: var(--transition);
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: var(--transition);
    transform-origin: center;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../images/hero/hero.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(44, 62, 80, 0.35) 0%,
        rgba(52, 73, 94, 0.3) 50%,
        rgba(44, 62, 80, 0.4) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-logo {
    max-width: 600px;
    width: 100%;
    height: auto;
    margin-bottom: var(--spacing-sm);
    transform: translateY(-19px);
    filter: drop-shadow(0 2px 20px rgba(0, 0, 0, 0.3));
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.3s both;
}

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

/* About Section */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--background-color);
}

.about-content {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.hero-statement {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 300;
    color: var(--text-light);
    font-style: normal;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Image Carousel */
.image-carousel {
    width: 100%;
    overflow: hidden;
    margin-top: var(--spacing-lg);
    position: relative;
}

.carousel-container {
    width: 100%;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    gap: var(--spacing-md);
    animation: scroll-left 45s linear infinite;
    width: max-content;
}

.carousel-track img {
    height: 300px;
    width: auto;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    flex-shrink: 0;
}

.carousel-track img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Carousel Animation */
@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Pause animation on hover */
.image-carousel:hover .carousel-track {
    animation-play-state: paused;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .carousel-track img {
        height: 200px;
    }
    
    .carousel-track {
        animation-duration: 25s;
    }
}

/* Projects Section */
.projects {
    padding: var(--spacing-xl) 0;
    background-color: #f8f9fa;
}

.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.project-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.project-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.project-description {
    color: var(--text-light);
    font-style: italic;
    font-size: 0.95rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .project-gallery {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .project-image {
        height: 250px;
    }
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
    position: relative;
    background-image: url('../images/contact/Contact.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.3) 100%
    );
    z-index: 1;
}

.contact .container {
    position: relative;
    z-index: 2;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: transparent;
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: white;
    font-size: 0.95rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition);
    background-color: rgba(255, 255, 255, 0.9);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: white;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    width: 100%;
    padding: 14px 24px;
    background: #aa9056;
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-submit:hover {
    background: #9a8049;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(170, 144, 86, 0.3);
}

.form-submit:active {
    transform: translateY(0);
}

.form-submit:disabled {
    background: var(--text-light);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.form-feedback {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
    display: none;
}

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

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

/* Form validation styles */
.form-input.invalid,
.form-textarea.invalid {
    border-color: #dc3545;
    background-color: #fff5f5;
}

.form-input.valid,
.form-textarea.valid {
    border-color: #28a745;
    background-color: #f8fff9;
}

.form-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    display: none;
}

.form-error.show {
    display: block;
}

.footer {
    background-color: #404040;
    color: white;
    text-align: center;
    padding: var(--spacing-md) 0;
}

/* Image Loading and Optimization Styles */
img {
    transition: opacity 0.3s ease;
}

img.lazy-loading {
    opacity: 0.3;
    background-color: #f8f9fa;
    background-image: linear-gradient(90deg, #f8f9fa 25%, #e9ecef 50%, #f8f9fa 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

img.lazy-loaded {
    opacity: 1;
}

img.lazy-error {
    opacity: 0.7;
    background-color: #f8f9fa;
    border: 2px dashed #dee2e6;
}

@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Performance optimizations */
.carousel-track {
    will-change: transform;
    backface-visibility: hidden;
    perspective: 1000px;
}

.carousel-track img {
    will-change: transform;
    backface-visibility: hidden;
}

/* Optimize images for different screen densities */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero {
        background-image: url('../images/hero/hero.png');
    }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    img {
        transition: none !important;
    }
    
    .carousel-track {
        animation: none !important;
    }
    
    @keyframes loading-shimmer {
        0%, 100% {
            background-position: 0 0;
        }
    }
}/* En
hanced Image Optimization Styles */

/* Image placeholder and loading states */
.image-placeholder {
    background: linear-gradient(90deg, #f8f9fa 25%, #e9ecef 50%, #f8f9fa 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
    border-radius: var(--border-radius);
}

/* Optimized image loading */
img {
    image-rendering: auto;
    image-rendering: crisp-edges;
    image-rendering: -webkit-optimize-contrast;
}

/* WebP support optimizations */
.webp-supported img {
    /* Enhanced rendering for WebP images */
    image-rendering: -webkit-optimize-contrast;
}

/* Connection-based optimizations */
.slow-connection img {
    /* Reduce image quality on slow connections */
    filter: contrast(0.9) brightness(1.1);
}

.slow-connection .carousel-track {
    /* Disable animations on slow connections */
    animation-play-state: paused !important;
}

.medium-connection img {
    /* Slightly reduced quality for medium connections */
    filter: contrast(0.95);
}

/* Progressive image loading */
.progressive-image {
    position: relative;
    overflow: hidden;
}

.progressive-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.progressive-image .placeholder {
    position: relative;
    background: linear-gradient(45deg, #f8f9fa, #e9ecef);
    width: 100%;
    height: 100%;
}

/* Optimized carousel for performance */
.carousel-track {
    /* Hardware acceleration */
    transform: translate3d(0, 0, 0);
    will-change: transform;
    backface-visibility: hidden;
    perspective: 1000px;
}

.carousel-track img,
.carousel-track picture {
    /* Optimize individual images */
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* Lazy loading enhancements */
img[loading="lazy"] {
    /* Smooth transition when loading */
    transition: opacity 0.3s ease, filter 0.3s ease;
}

img.lazy-loading {
    opacity: 0.3;
    filter: blur(2px);
}

img.lazy-loaded {
    opacity: 1;
    filter: none;
}

img.lazy-error {
    opacity: 0.7;
    background: #f8f9fa url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="%23666" stroke-width="2"><rect x="3" y="3" width="18" height="18" rx="2" ry="2"/><circle cx="8.5" cy="8.5" r="1.5"/><polyline points="21,15 16,10 5,21"/></svg>') center center no-repeat;
    background-size: 48px 48px;
}

/* Picture element optimizations */
picture {
    display: block;
    width: 100%;
    height: 100%;
}

picture img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}



/* Performance optimizations for different screen densities */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduce motion for better performance */
@media (prefers-reduced-motion: reduce) {
    .carousel-track {
        animation: none !important;
    }
    
    img {
        transition: none !important;
    }
    
    .image-placeholder {
        animation: none !important;
    }
}

/* Print optimizations */
@media print {
    img {
        max-width: 100% !important;
        height: auto !important;
        page-break-inside: avoid;
    }
    
    .carousel-track {
        animation: none !important;
        transform: none !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    img {
        filter: contrast(1.2);
    }
    
    .image-placeholder {
        background: #000000;
        color: #ffffff;
    }
}

/* Dark mode optimizations (if implemented) */
@media (prefers-color-scheme: dark) {
    img {
        filter: brightness(0.9);
    }
    
    .image-placeholder {
        background: linear-gradient(90deg, #2c2c2c 25%, #3c3c3c 50%, #2c2c2c 75%);
    }
}