:root {
    --primary-color: #1d1d1f;
    --secondary-color: #86868b;
    --background-color: #fbfbfd;
    --accent-color: #2997ff;
    --white: #ffffff;
    --border-color: #e5e5e5;
    --input-bg: #f5f5f7;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-focus: rgba(41, 151, 255, 0.1);
    --backdrop-blur: rgba(251, 251, 253, 0.8);
    --overlay-bg: rgba(251, 251, 253, 0.7);
    
    /* Typography scale - harmonická 1.25 ratio */
    --font-size-xs: 0.8rem;
    --font-size-sm: 1rem;
    --font-size-base: 1.25rem;
    --font-size-lg: 1.563rem;
    --font-size-xl: 1.953rem;
    --font-size-2xl: 2.441rem;
    --font-size-3xl: 3.052rem;
    --font-size-4xl: 3.815rem;
    --font-size-5xl: 4.768rem;
    
    /* Spacing scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 2.5rem;
    --space-2xl: 3rem;
    --space-section: 100px;
    
    /* Border radius */
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-full: 980px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.47059;
    color: var(--primary-color);
    background-color: var(--background-color);
    font-feature-settings: "kern" 1, "liga" 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Header & Navigation */
header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
}

nav {
    width: 100%;
    background: var(--backdrop-blur);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-content {
    max-width: 980px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-base);
    font-weight: 500;
}

.logo-link {
    text-decoration: none;
    color: var(--primary-color);
    cursor: pointer;
    transition: color var(--transition-base);
}

.logo-link:hover,
.logo-link:focus {
    color: var(--accent-color);
    outline: none;
}

.logo-link:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
    border-radius: 4px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    font-size: var(--font-size-xs);
    transition: color var(--transition-base);
    padding: var(--space-xs);
    border-radius: 4px;
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--accent-color);
    outline: none;
}

.nav-links a:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(var(--overlay-bg), var(--overlay-bg)), url('images/hero.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .hero {
        background-attachment: scroll;
    }
}

.hero-content {
    max-width: 800px;
    padding: 0 var(--space-lg);
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, var(--font-size-5xl));
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: var(--space-xs);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 4vw, var(--font-size-2xl));
    font-weight: 400;
    color: var(--secondary-color);
    margin-bottom: var(--space-sm);
}

.hero-description {
    font-size: clamp(1rem, 3vw, var(--font-size-lg));
    color: var(--secondary-color);
}

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

/* Feature Section */
.feature-section {
    padding: var(--space-section) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

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

/* Grid Section Animation */
.grid-section {
    padding: var(--space-section) var(--space-lg);
    background-color: var(--white);
}

.grid-section .section-title {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
    text-align: center;
}

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

.feature-content {
    max-width: 600px;
    text-align: center;
    padding: 0 var(--space-lg);
}

.section-title {
    font-size: clamp(1.8rem, 5vw, var(--font-size-3xl));
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.section-description {
    font-size: clamp(1rem, 2.5vw, var(--font-size-lg));
    color: var(--secondary-color);
    line-height: 1.5;
    margin-bottom: var(--space-lg);
}

.section-description:last-child {
    margin-bottom: 0;
}


.grid {
    max-width: 980px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
}

.grid-item {
    background: var(--background-color);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid transparent;
    opacity: 0;
    transform: translateY(30px);
}

.grid-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.grid-item:hover,
.grid-item:focus-within {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--shadow-light);
    border-color: var(--border-color);
}

.grid-item.visible:hover,
.grid-item.visible:focus-within {
    transform: translateY(-4px);
}

.item-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: var(--space-sm);
}

.item-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.price {
    margin-top: auto;
    color: var(--accent-color);
    font-weight: 500;
    padding-top: var(--space-sm);
    font-size: var(--font-size-sm);
}

/* Contact Section */
.contact-section {
    padding: var(--space-section) var(--space-lg);
    text-align: center;
    background-color: var(--background-color);
}

.contact-info {
    margin-top: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    margin: var(--space-sm) 0;
    font-size: var(--font-size-base);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.contact-link:hover,
.contact-link:focus {
    background-color: var(--shadow-focus);
    transform: translateY(-1px);
    outline: none;
}

.contact-link:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-full);
    text-decoration: none;
    margin-top: var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 14px rgba(41, 151, 255, 0.3);
}

.cta-button:hover,
.cta-button:focus {
    background-color: #0077ed;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(41, 151, 255, 0.4);
    outline: none;
}

.cta-button:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
}

.cta-button:active {
    transform: translateY(0);
}

/* Footer */
footer {
    padding: var(--space-lg);
    text-align: center;
    color: var(--secondary-color);
    font-size: var(--font-size-xs);
    background-color: var(--white);
    border-top: 1px solid var(--border-color);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    gap: 4px;
    z-index: 1001;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--primary-color);
    transition: all var(--transition-base);
    border-radius: 2px;
}

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-content {
        padding: var(--space-sm) var(--space-sm);
        position: relative;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--white);
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px var(--space-lg) var(--space-lg);
        gap: var(--space-lg);
        transition: right var(--transition-base);
        z-index: 1000;
        box-shadow: -5px 0 15px var(--shadow-light);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        font-size: var(--font-size-base);
        padding: var(--space-sm) 0;
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    
    .hero {
        padding: 0 var(--space-sm);
    }
    
    .feature-content {
        padding: 0 var(--space-sm);
    }
    
    .grid-section {
        padding: var(--space-section) var(--space-sm);
    }
    
    .grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .contact-section {
        padding: var(--space-section) var(--space-sm);
    }
}

/* Booking Form (kept for potential future use) */
.booking-form {
    max-width: 500px;
    margin: var(--space-2xl) auto 0;
    padding: var(--space-lg);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 6px var(--shadow-light);
    border: 1px solid var(--border-color);
}

.booking-form h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: var(--primary-color);
}

.form-group {
    margin-bottom: var(--space-base);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem var(--space-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    background-color: var(--input-bg);
    transition: all var(--transition-base);
    font-family: inherit;
}

.form-group textarea {
    height: 100px;
    resize: vertical;
    min-height: 80px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: var(--white);
    box-shadow: 0 0 0 4px var(--shadow-focus);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--secondary-color);
}

@media (max-width: 768px) {
    .booking-form {
        padding: var(--space-md);
        margin: var(--space-lg) var(--space-sm) 0;
    }
}

.service-list {
    list-style: none;
    text-align: left;
    margin: var(--space-sm) 0;
    color: var(--secondary-color);
}

.service-list li {
    position: relative;
    padding-left: var(--space-md);
    margin-bottom: var(--space-xs);
    line-height: 1.5;
    font-size: var(--font-size-sm);
}

.service-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 600;
}

.address {
    margin-bottom: var(--space-md);
    line-height: 1.6;
    color: var(--secondary-color);
    font-size: var(--font-size-sm);
}

.address:last-of-type {
    margin-bottom: 0;
}

/* Map Section */
.map-section {
    background-color: var(--white);
    overflow: hidden;
}

.map-section iframe {
    display: block;
    width: 100%;
    border: none;
    filter: grayscale(20%) contrast(1.1);
    transition: filter var(--transition-base);
}

.map-section iframe:hover {
    filter: grayscale(0%) contrast(1);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 2px solid var(--secondary-color);
    border-radius: 12px;
    opacity: 0.7;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--secondary-color);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
}

@media (max-width: 768px) {
    .scroll-indicator {
        display: none;
    }
}