/* --- Základní proměnné a designové tokeny --- */
:root {
    --sage-dark: #2d4a35;
    --sage-light: #4c6d52;
    --accent-color: #b25e1e;
    --terracotta-soft: #d49553;
    
    --bg-green-start: #e8efe5;
    --bg-green-end: #d4e2d0;
    --bg-beige-start: #fbf8f0;
    --bg-beige-end: #efe5d0;
    
    --noise-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");

    --surface-glass: rgba(255, 255, 255, 0.72);
    --surface-glass-hover: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(76, 109, 82, 0.18);
    --shadow-depth-1: 0 12px 35px -5px rgba(25, 40, 30, 0.08), 0 2px 6px rgba(0,0,0,0.02);
    --shadow-depth-2: 0 22px 50px -10px rgba(25, 40, 30, 0.14), 0 4px 12px rgba(0,0,0,0.04);
    
    --text-color: #202b22;
    --text-muted: #4a594d;
    --font-heading: 'Lora', serif;
    --font-body: 'Montserrat', sans-serif;
    --unified-heading-size: 2.2rem;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-green-start);
    overflow-x: hidden;
}

h1, h2, .section-title {
    font-family: var(--font-heading);
    color: var(--text-color);
    font-size: var(--unified-heading-size);
    font-weight: 600;
    line-height: 1.25;
}

h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-color);
    font-weight: 600;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* --- Hlavička (Navigace) --- */
nav {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: #ffffff;
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.04);
    overflow: visible !important;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
}

.logo .tagline {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--sage-dark);
    margin-top: 0.2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-color);
    transition: color 0.2s ease;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--sage-dark);
    padding: 0.5rem;
}

.btn-nav, .btn-primary {
    background-color: var(--sage-dark);
    color: #ffffff !important;
    padding: 0.6rem 1.4rem;
    border-radius: 999px;
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px rgba(45, 74, 53, 0.2);
}

.btn-nav:hover, .btn-primary:hover {
    background-color: var(--sage-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45, 74, 53, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    color: var(--text-color);
    border: 1px solid var(--sage-dark);
    padding: 0.6rem 1.4rem;
    border-radius: 999px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--sage-dark);
    color: #ffffff;
}

/* --- Sekce a plné pozadí --- */
section, header.hero {
    width: 100%;
    max-width: 100%;
    padding: 5rem 2rem;
}

header.hero {
    background: var(--noise-texture), linear-gradient(135deg, var(--bg-green-start) 0%, var(--bg-green-end) 100%);
}

section.about {
    background: var(--noise-texture), linear-gradient(135deg, var(--bg-beige-start) 0%, var(--bg-beige-end) 100%);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

section.skills {
    background: var(--noise-texture), linear-gradient(135deg, var(--bg-green-start) 0%, var(--bg-green-end) 100%);
    border-bottom: 1px solid var(--glass-border);
}

section.projects {
    background: var(--noise-texture), linear-gradient(135deg, var(--bg-beige-start) 0%, var(--bg-beige-end) 100%);
    border-bottom: 1px solid var(--glass-border);
}

section.contact {
    background: var(--noise-texture), linear-gradient(135deg, var(--bg-green-start) 0%, var(--bg-green-end) 100%);
    border-bottom: 1px solid var(--glass-border);
}

header.hero .hero-container,
section.about > *,
section.projects > *,
.section-container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.section-container.skills-grid, .section-container.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.section-container.skills-grid {
    align-items: center;
}

.subtitle {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sage-dark);
    margin-bottom: 0.75rem;
}

/* --- Hero Sekce --- */
.hero-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    gap: 2rem;
}

.hero-title h1 {
    font-size: var(--unified-heading-size);
    line-height: 1.25;
    margin-bottom: 0.5rem;
}

.hero-image img {
    width: 180px;
    height: 180px;
    object-fit: cover;
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 45%, rgba(0,0,0,0) 85%);
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 45%, rgba(0,0,0,0) 85%);
}

.hero-text {
    width: 100%;
}

.hero-text p {
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* --- O mně Sekce --- */
.about-intro {
    width: 100%;
    margin-bottom: 3rem;
}

.about-header-flex {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.about-photo img {
    width: 250px;
    height: 120px;
    object-fit: cover;
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 45%, rgba(0,0,0,0) 85%);
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 55%, rgba(0,0,0,0) 95%);
}

.about-header-flex h2 {
    font-size: var(--unified-heading-size);
    margin: 0;
}

.about-intro p {
    font-size: 1.05rem;
}

.cards-title {
    margin-bottom: 1.5rem;
    font-size: var(--unified-heading-size);
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.card, .skill-box, .project-card, .contact-form-wrapper {
    background: var(--surface-glass);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    padding: 2rem;
    box-shadow: var(--shadow-depth-1);
    backdrop-filter: blur(14px);
    transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
}

.card:hover, .skill-box:hover, .project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-depth-2);
    background: var(--surface-glass-hover);
}

.card h4, .skill-box h4 {
    margin-bottom: 0.75rem;
}

/* --- Zkušenosti Sekce --- */
.skills h2 {
    font-size: var(--unified-heading-size);
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.skill-box {
    border-radius: 1.5rem;
    padding: 1.5rem;
}

.skill-box h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.skills-header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 3rem;
}

.skills-photo img {
    width: 250px;
    height: 120px;
    object-fit: cover;
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 45%, rgba(0,0,0,0) 85%);
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 55%, rgba(0,0,0,0) 95%);
}

/* --- Projekty Sekce --- */
.projects-header {
    margin-bottom: 3rem;
}

.projects-header h2 {
    font-size: var(--unified-heading-size);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding: 0 !important;
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-tag {
    display: inline-block;
    width: fit-content;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--sage-dark);
    background-color: rgba(45, 74, 53, 0.12);
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
}

.project-card h3 {
    font-size: 1.3rem; 
    margin-bottom: 1rem;
}

/* --- Kontakt Sekce --- */
.contact-info h2 {
    font-size: var(--unified-heading-size);
}

.contact-bullets {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-bullets li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--sage-dark);
}

.contact-form-wrapper {
    padding: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.form-group input, 
.form-group textarea {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 0.85rem 1.2rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
}

/* --- Patička --- */
footer {
    background: #ffffff;
    border-top: 1px solid var(--glass-border);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto 3rem;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.footer-logo {
    max-width: 300px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Styl pro vyskakovací okno (Popup) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(32, 43, 34, 0.4);
    backdrop-filter: blur(6px);
    z-index: 10000; /* Zvýšeno nad navigaci */
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--surface-glass);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    padding: 2.5rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
}

/* --- Responzivita pro mobilní zařízení --- */
@media (max-width: 900px) {
    .skills-grid, 
    .section-container.contact-grid, 
    .about-cards, 
    .projects-grid, 
    .form-row {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem; 
        width: 100%;
    }

    /* MOBILNÍ MENU a HLAVIČKA */
    .nav-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    .menu-toggle {
        display: block !important;
        cursor: pointer;
    }

    .nav-links {
        display: none !important; /* Základně schované přes !important */
    }

    .nav-links.active {
        display: flex !important;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        padding: 1.5rem 2rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        gap: 1.5rem;
        align-items: flex-start;
        border-bottom: 1px solid var(--glass-border);
    }

    /* Ostatní srovnání */
    .hero-top {
        flex-direction: column-reverse; 
        align-items: center;
        text-align: center;
        gap: 1.5rem;
    }

    .hero-text {
        text-align: center;
    }

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

    .hero-image img {
        width: 90px !important;
        height: 90px !important;
    }

    .about-header-flex, .skills-header-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .footer-content {
        flex-direction: column;
    }
}