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

:root {
    --accent: #4a9eff;
    --gold: #d4af37;
    --bg-dark: #0a0e1a;
    --bg-film: #151b28;
    --text-light: #e8eef5;
    --text-dim: #7a8ba3;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    overflow-x: hidden;
}

/* Animated Background */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 50% 0%, rgba(74, 158, 255, 0.15), transparent 50%),
                radial-gradient(ellipse at 80% 50%, rgba(212, 175, 55, 0.08), transparent 50%),
                linear-gradient(180deg, #0a0e1a 0%, #151b28 100%);
    z-index: -1;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 2rem 4rem;
    z-index: 1000;
    transition: all 0.3s;
    background: rgba(10, 14, 26, 0.3);
    backdrop-filter: blur(10px);
}

header.scrolled {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 4rem;
    border-bottom: 1px solid rgba(74, 158, 255, 0.1);
}

/* Fixed header style for non-home pages */
header.fixed {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(74, 158, 255, 0.1);
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    letter-spacing: 2px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 3rem;
}

nav a {
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color 0.3s;
    position: relative;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s;
}

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

nav a:hover,
nav a.active {
    color: var(--text-light);
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
    filter: brightness(0.6) contrast(1.1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 40%, rgba(10, 14, 26, 0.95) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 1200px;
    padding: 0 2rem;
}

.hero-content h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 900;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    line-height: 1;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hero-content .subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--accent);
    font-weight: 300;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-bottom: 3rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-dim);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* Page Header */
.page-header {
    margin-top: 73px;
    padding: 1.5rem 4rem 2rem;
    text-align: center;
}

.page-header h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-dim);
    letter-spacing: 4px;
    text-transform: uppercase;
}

/* Services Section */
.services {
    padding: 10rem 4rem;
    max-width: 1600px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 6rem;
    color: var(--text-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    position: relative;
    height: 600px;
    border-radius: 0;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s, filter 0.5s;
}

.service-card:hover img {
    transform: scale(1.1);
    filter: brightness(0.4);
}

.service-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 3rem 2rem;
    background: linear-gradient(to top, rgba(10, 14, 26, 0.98) 0%, rgba(10, 14, 26, 0.85) 70%, transparent 100%);
    transform: translateY(0);
    transition: all 0.5s;
}

.service-card:hover .service-overlay {
    background: linear-gradient(to top, rgba(10, 14, 26, 0.95) 0%, rgba(10, 14, 26, 0.7) 50%, transparent 100%);
}

.service-overlay h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.service-overlay p {
    color: var(--text-dim);
    line-height: 1.8;
    font-size: 1rem;
    opacity: 0.9;
    max-width: 90%;
}

.service-card:hover .service-overlay p {
    opacity: 1;
    color: var(--text-light);
}

/* Gallery */
.gallery {
    padding: 2rem 4rem 8rem;
    max-width: 1600px;
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.gallery-grid.wood-grid {
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
}

.gallery-item {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
}

.gallery-item.wood-item {
    aspect-ratio: 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease, filter 0.6s;
    filter: brightness(0.9) contrast(1.1);
}

.gallery-item.wood-item img {
    filter: sepia(20%) brightness(0.9) contrast(1.1);
}

.gallery-item:hover img {
    transform: scale(1.08);
    filter: brightness(0.7) contrast(1.2);
}

.gallery-item.wood-item:hover img {
    filter: sepia(0%) brightness(0.7) contrast(1.2);
}

.gallery-item-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 300;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.3);
    opacity: 0;
    transition: opacity 0.3s;
}

.gallery-item.wood-item .gallery-item-number {
    -webkit-text-stroke: 1px rgba(212, 175, 55, 0.5);
}

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

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.98);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 3rem;
    cursor: pointer;
    font-weight: 300;
    transition: color 0.3s;
}

.lightbox-close:hover {
    color: var(--accent);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 4rem;
    cursor: pointer;
    padding: 2rem;
    transition: color 0.3s;
    font-weight: 300;
}

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

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

/* Content Section (for vyvoj.php) */
.content {
    padding: 2rem 4rem 8rem;
    max-width: 1600px;
    margin: 0 auto;
}

.github-section {
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 6rem;
    background: linear-gradient(135deg, rgba(74, 158, 255, 0.1), rgba(212, 175, 55, 0.05));
    border-radius: 8px;
    border: 1px solid rgba(74, 158, 255, 0.2);
}

.github-section h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.github-link {
    display: inline-block;
    padding: 1.25rem 3rem;
    background: transparent;
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s;
    border: 1px solid rgba(74, 158, 255, 0.3);
    border-radius: 4px;
}

.github-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: rgba(21, 27, 40, 0.6);
    border: 1px solid rgba(74, 158, 255, 0.1);
    border-radius: 4px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all 0.3s;
}

.tool-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    background: rgba(21, 27, 40, 0.9);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: all 0.3s;
}

.tool-card:hover .tool-icon {
    opacity: 1;
    filter: grayscale(0%);
}

.tool-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-light);
}

.tool-card p {
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.6;
}

/* Login Form */
.login-container {
    padding: 2rem 4rem 8rem;
    max-width: 500px;
    margin: 0 auto;
}

.login-form {
    background: rgba(21, 27, 40, 0.6);
    border: 1px solid rgba(74, 158, 255, 0.2);
    border-radius: 8px;
    padding: 3rem 2.5rem;
}

.login-form h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-light);
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    background: rgba(10, 14, 26, 0.6);
    border: 1px solid rgba(74, 158, 255, 0.2);
    border-radius: 4px;
    color: var(--text-light);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(10, 14, 26, 0.8);
}

.form-group input::placeholder {
    color: var(--text-dim);
    opacity: 0.5;
}

.btn-login {
    width: 100%;
    padding: 1.25rem;
    background: transparent;
    color: var(--text-light);
    border: 1px solid rgba(74, 158, 255, 0.3);
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Inter', sans-serif;
}

.btn-login:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.error-message {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid rgba(220, 53, 69, 0.5);
    color: #ff6b6b;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

/* Footer */
footer {
    border-top: 1px solid rgba(74, 158, 255, 0.1);
    padding: 4rem;
    text-align: center;
}

.footer-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-size: 0.9rem;
}

.footer-content a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* Mobile */
@media (max-width: 768px) {
    header {
        padding: 1.5rem 2rem;
    }

    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .gallery {
        padding: 2rem;
    }

    .gallery-grid,
    .gallery-grid.wood-grid {
        grid-template-columns: 1fr;
    }

    .content {
        padding: 2rem;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .login-container {
        padding: 2rem;
    }

    .contact-content {
        padding: 2rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Contact Page */
.contact-content {
    padding: 2rem 4rem 8rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.contact-info {
    position: relative;
}

.profile-image {
    width: 100%;
    max-width: 350px;
    aspect-ratio: 1;
    object-fit: cover;
    margin-bottom: 3rem;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(74, 158, 255, 0.1),
                0 20px 60px rgba(74, 158, 255, 0.15);
}

.contact-details {
    position: relative;
}

.contact-item {
    margin-bottom: 2.5rem;
}

.contact-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.contact-value {
    font-size: 1.25rem;
    color: var(--text-light);
    font-weight: 500;
}

.contact-value a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s;
    border-bottom: 1px solid transparent;
}

.contact-value a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.tool-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}