html {
    overflow-x: hidden;
}

:root {
    --primary-color: #38bdf8;
    /* Cyan-400 */
    --primary-hover: #0ea5e9;
    /* Cyan-500 */
    --primary-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
    --secondary-color: #f8fafc;
    --text-color: #e2e8f0;
    /* Slate-200 */
    --text-muted: #94a3b8;
    /* Slate-400 */
    --bg-color: #0f172a;
    /* Slate-900 */
    --card-bg: #1e293b;
    /* Slate-800 */
    --card-border: #334155;
    /* Slate-700 */
    --white: #ffffff;
    --font-main: 'Outfit', sans-serif;

    /* Effects */
    --shadow-primary: rgba(56, 189, 248, 0.2);
    --shadow-hover: rgba(0, 0, 0, 0.3);
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index */
    --z-navbar: 1000;
    --z-menu: 1001;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at 50% 0%, #1e293b 0%, #0f172a 70%);
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden; /* Přidáno */
    max-width: 100vw; /* Přidáno */
}

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

/* Navbar */
.navbar {
    background-color: rgba(15, 23, 42, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: var(--z-navbar);
    border-bottom: 1px solid var(--card-border);
    backdrop-filter: blur(5px);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 6rem 0 4rem;
    text-align: left;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    animation: fade-in-up 0.8s ease-out;
}

.hero-image {
    position: relative;
    animation: fade-in-up 1s ease-out;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 2rem;
    box-shadow: 0 20px 40px -10px rgba(56, 189, 248, 0.3);
    border: 2px solid rgba(56, 189, 248, 0.2);
    display: block;
    margin: 0 auto;

    transition: var(--transition-base);
}

.hero-image img:hover {
    transform: scale(1.02);
    border-color: var(--primary-color);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--white);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #0f172a;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--card-border);
    color: var(--white);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* Sections */
.section {
    padding: 5rem 0;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--white);
    letter-spacing: -0.02em;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.about-image img {
    width: 100%;
    max-width: 350px;
    border-radius: 1rem;
    display: block;
    margin: 0 auto;
    border: 1px solid var(--card-border);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
    animation: float 6s ease-in-out infinite;
    transition: var(--transition-base);
}

.about-image img:hover {
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.3);
    border-color: var(--primary-color);
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.skill-category {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: var(--transition-base);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px -5px var(--shadow-hover);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.5rem;
}

.skill-list li {
    margin-bottom: 0.5rem;
    padding-left: 1.25rem;
    position: relative;
    color: var(--text-color);
}

.skill-list li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Experience Timeline */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding: 1rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background-color: var(--card-border);
}

.timeline-item {
    margin-bottom: 3rem;
    padding-left: 2.5rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -5px;
    top: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 2px solid var(--primary-color);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.timeline-content {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--card-border);
    transition: var(--transition-base);
}

.timeline-content:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px -5px var(--shadow-hover);
}

.timeline-content h3 {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.company {
    display: block;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 1rem;
    border: 1px solid var(--card-border);
    transition: var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

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

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px -5px var(--shadow-primary);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: rgba(56, 189, 248, 0.1);
    width: 80px;
    height: 80px;
    line-height: 80px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--primary-color);
    color: var(--bg-color);
    transform: rotateY(180deg);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--white);
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

.service-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(145deg, var(--card-bg) 0%, rgba(56, 189, 248, 0.1) 100%);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -5px rgba(56, 189, 248, 0.15);
    border-width: 2px;
}

.service-card.featured:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px -5px rgba(56, 189, 248, 0.25);
}

/* Badges */
.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary-gradient);
    color: var(--bg-color);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-card.coming-soon {
    opacity: 0.7;
    filter: grayscale(0.8);
    cursor: not-allowed;
    background: var(--card-bg);
}

.service-card.coming-soon:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--card-border);
}

.badge.coming-soon-badge {
    background: var(--card-border);
    color: var(--text-muted);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 0.75rem;
    overflow: hidden;
    border: 1px solid var(--card-border);
    transition: var(--transition-base);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px -5px var(--shadow-hover);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.project-content p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    text-decoration: underline;
}

/* Contact Form & Grid */
.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: start;
    text-align: left;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    font-size: 1.1rem;
    color: var(--text-color);
    text-decoration: none;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 0.5rem;
    border: 1px solid var(--card-border);
    transition: all 0.2s;
}

.contact-item:hover {
    border-color: var(--primary-color);
    color: var(--white);
    transform: translateX(5px);
}

.contact-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--card-border);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background: var(--bg-color);
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--shadow-primary);
}

.btn-block {
    width: 100%;
    padding: 1rem;
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fade-in-up 0.8s ease-out;
}

/* Flash Messages */
.flash-messages {
    margin-top: 1rem;
}

.flash-message {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 600;
}

.flash-message.success {
    background-color: rgba(16, 185, 129, 0.2);
    border: 1px solid #10b981;
    color: #10b981;
}

.flash-message.error {
    background-color: rgba(239, 68, 68, 0.2);
    border: 1px solid #ef4444;
    color: #ef4444;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: var(--z-menu);
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--white);
    border-radius: 3px;
    transition: all 0.3s;
}

/* Footer */
footer {
    background-color: #020617;
    color: var(--text-muted);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--card-border);
    margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
    /* Zabránit horizontálnímu scrollování */
    html, body {
        overflow-x: hidden !important;
        position: relative;
    }
    
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(10px);
        justify-content: center;
        align-items: center;
        transition: right 0.3s ease-in-out;
        gap: 2rem;
        z-index: var(--z-navbar);
        /* Přidáno pro zabránění scrollování */
        transform: translateX(0);
    }

    .nav-links.active {
        right: 0;
    }
    
    /* Alternativně můžete použít transform místo right */
    .nav-links {
        right: 0;
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
    }
    
    .nav-links.active {
        transform: translateX(0);
    }

    /* Zablokovat scrollování když je menu otevřené */
    body.menu-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    /* Hamburger Animation */
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -8px);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero {
        padding: 6rem 0 4rem;
        text-align: center;
    }

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

    .hero-image {
        order: -1;
        /* Image first on mobile */
    }

    .hero-image img {
        max-width: 280px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .tagline {
        margin-left: auto;
        margin-right: auto;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image {
        order: -1;
    }

    .timeline::before {
        left: 0;
    }

    .contact-info {
        order: 2;
    }

    .contact-form {
        order: 1;
    }

    /* Touch Targets */
    .btn,
    .nav-links a,
    .contact-item {
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}