/* Základní nastavení a "vesmírné" proměnné */
:root {
    --purple: #8e2de2;
    --orange: #ff6a00;
    --dark-space: #0f0c29;
    --mid-space: #24243e;
    --light-text: #f0f0f0;
    --mid-text: #a0a0b8;
    --glow-color: rgba(142, 45, 226, 0.6);
    --font-family: 'Poppins', sans-serif;
    --transition-speed: 0.5s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(180deg, var(--dark-space) 0%, #000 100%);
    color: var(--light-text);
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigace s efektem skla */
.navbar {
    background: rgba(15, 12, 41, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: background var(--transition-speed) ease;
}

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

.nav-logo {
    font-weight: 700;
    font-size: 1.8rem;
    text-decoration: none;
    background: linear-gradient(90deg, var(--purple), var(--orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-menu { list-style: none; display: flex; }
.nav-item { margin-left: 2rem; }
.nav-link {
    color: var(--mid-text);
    text-decoration: none;
    font-weight: 400;
    transition: color var(--transition-speed) ease;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
}
.nav-link:hover {
    color: var(--light-text);
    border-bottom-color: var(--purple);
}

/* Hero sekce s animovaným pozadím */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
#space-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* === ИЗМЕНЕНИЯ ЗДЕСЬ: УВЕЛИЧЕННАЯ ФОТОГРАФИЯ === */
.profile-photo {
    width: 180px; /* Увеличил с 160px */
    height: 180px; /* Увеличил с 160px */
    border-radius: 50%;
    border: 5px solid var(--purple); /* Сделал рамку толще */
    object-fit: cover;
    margin-bottom: 2rem;
    box-shadow: 0 0 25px var(--glow-color); /* Усилил свечение */
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, var(--purple), var(--orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--mid-text);
    margin-bottom: 2.5rem;
}

/* Hlavní tlačítko s gradientem a animací */
.btn {
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    color: var(--light-text);
    background: linear-gradient(90deg, var(--purple), var(--orange));
    border: none;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 0 15px var(--glow-color);
    background-size: 200% auto;
}

.btn:hover {
    background-position: right center;
    transform: scale(1.05);
}

/* Společné styly pro sekce */
.content-section {
    padding: 6rem 0;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}
.content-section.visible {
    opacity: 1;
    transform: translateY(0);
}
.section-title {
    font-size: 3rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(90deg, var(--purple) 0%, var(--orange) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Sekce O mně */
.about-content { display: flex; gap: 4rem; align-items: center; }
.about-text { flex: 2; }
.about-text p { margin-bottom: 1.5rem; color: var(--mid-text); line-height: 1.8; }
.about-text strong { color: var(--light-text); font-weight: 600; }
.about-image { flex: 1; }
.award-photo {
    width: 100%;
    border-radius: 15px;
    border: 2px solid var(--mid-space);
    transition: transform var(--transition-speed) ease;
}
.award-photo:hover {
    transform: scale(1.05);
}

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

.project-card {
    background: linear-gradient(145deg, rgba(36, 36, 62, 0.5), rgba(15, 12, 41, 0.5));
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    transition: all var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border-color: var(--purple);
}
.card-content { margin-bottom: 1.5rem; }
.project-card h3 {
    color: var(--light-text);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}
.project-card p {
    color: var(--mid-text);
    line-height: 1.7;
}
.project-links a {
    color: var(--purple);
    text-decoration: none;
    font-weight: 600;
    margin-right: 1.5rem;
    transition: color var(--transition-speed) ease;
}
.project-links a:hover {
    color: var(--orange);
}

/* === ИЗМЕНЕНИЯ ЗДЕСЬ: НОВЫЕ СТИЛИ ДЛЯ НАВЫКОВ === */
.skills-grid-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.skill-category-detailed {
    background: var(--mid-space);
    padding: 2.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-speed) ease;
}
.skill-category-detailed:hover {
    transform: scale(1.03);
    border-color: var(--orange);
}
.skill-category-detailed h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--light-text);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.skill-category-detailed ul {
    list-style: none;
    text-align: left;
}
.skill-category-detailed li {
    color: var(--mid-text);
    margin-bottom: 1rem;
    font-size: 1rem;
    position: relative;
    padding-left: 25px;
}
.skill-category-detailed li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--orange);
    font-weight: bold;
}
.skill-category-detailed li strong {
    color: var(--light-text);
    font-weight: 600;
}

/* Sekce Kontakt */
.contact-container { text-align: center; }
.contact-subtitle { max-width: 600px; margin: 0 auto 2rem; color: var(--mid-text); }
.email-btn {
    font-size: 1.2rem;
    display: inline-block;
    margin-bottom: 2.5rem;
}
.social-links a {
    color: var(--mid-text);
    text-decoration: none;
    margin: 0 1.5rem;
    font-size: 1.2rem;
    transition: all var(--transition-speed) ease;
}
.social-links a:hover {
    background: linear-gradient(90deg, var(--purple), var(--orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transform: scale(1.2);
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--mid-text);
}

/* Responsivní design */
@media (max-width: 768px) {
    .hero-title { font-size: 2.8rem; }
    .hero-subtitle { font-size: 1.2rem; }
    .about-content { flex-direction: column; }
    .skills-grid-detailed { grid-template-columns: 1fr; }
    .nav-menu { /* Zde by se přidala logika pro mobilní menu (burger) */ }
}