/* --- FONTS & VARS --- */
@font-face {
    font-family: 'FjallaOne';
    src: url('assets/FjallaOne-Regular.ttf') format('truetype');
}

:root {
    --bg: #0a0a0a;
    --text: #f0f0f0;
    --accent-1: #00f2ff; /* Cyan / Turquoise */
    --accent-2: #7d00ff; /* Electric Purple */
    --accent-3: #ff0055; /* Hot Pink */
    --font-main: 'FjallaOne', sans-serif;
    --font-body: 'Helvetica Neue', sans-serif;
    --radius: 1.5rem; /* Modern Corner Radius */
    --card-bg: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    overflow-x: hidden;
    cursor: crosshair;
}

/* --- GRAIN & DITHER OVERLAY --- */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.05;
    background-image: 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='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- WEBGL CANVAS --- */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
}

/* --- NAV --- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    /* Removed mix-blend-mode: difference to improve contrast control */
}

.logo {
    font-family: var(--font-main);
    font-size: 2rem;
    color: white;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.nav-controls {
    display: flex;
    align-items: center;
}

.nav-btn {
    background: rgba(10, 10, 10, 0.6); /* Darker background for better contrast */
    border: 1px solid rgba(255,255,255,0.4);
    color: white;
    padding: 0.6rem 1.5rem;
    font-family: var(--font-main);
    cursor: pointer;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    margin-left: 1rem;
    border-radius: var(--radius);
    backdrop-filter: blur(10px); /* Increased blur */
}

.btn-filled {
    background: white;
    color: black;
    border-color: white;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 242, 255, 0.2); /* Cyan glow on hover */
    border-color: var(--accent-1);
}

.btn-filled:hover {
    background: var(--accent-1);
    border-color: var(--accent-1);
    color: black;
}

.active-lang {
    text-decoration: underline;
    color: var(--accent-1);
}

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 0; /* Spacing for nav */
}

.container {
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
}

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

.hero-content {
    z-index: 2;
    position: relative;
}

/* CRITICAL: Responsive Typography */
.hero-title {
    font-family: var(--font-main);
    font-size: clamp(4rem, 11vw, 12rem); 
    line-height: 0.85;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-title .line {
    display: block;
    color: white;
}

.hero-title .outlined {
    color: transparent;
    -webkit-text-stroke: 2px white;
}

.hero-sub {
    margin-top: 3rem;
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    letter-spacing: 0.2em;
    color: var(--accent-1);
    text-transform: uppercase;
    font-weight: bold;
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent-1);
    border-radius: 100px; /* Pill shape */
    background: rgba(0, 242, 255, 0.1); /* Updated to Cyan */
}

/* Hero Visual - Profile Card */
.hero-visual {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
}

.profile-card {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 3/4;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
    transform: rotate(3deg);
    transition: transform 0.5s ease;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.profile-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) contrast(1.1);
    transition: filter 0.5s ease;
}

.profile-card:hover .profile-img {
    filter: grayscale(0%) contrast(1);
}

.profile-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    pointer-events: none;
}

/* --- ABOUT SECTION --- */
.about {
    background: var(--bg);
    padding: 10rem 0;
    position: relative;
}

.scrolling-text {
    position: absolute;
    top: -3rem; 
    left: 0;
    width: 100%;
    background: var(--accent-1);
    color: black;
    font-family: var(--font-main);
    font-size: 2rem;
    display: flex; 
    white-space: nowrap;
    overflow: hidden;
    transform: rotate(-2deg);
    padding: 0.8rem 0;
    border-top: 2px solid black;
    border-bottom: 2px solid black;
    z-index: 10;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.scrolling-text span {
    flex-shrink: 0;
    padding-right: 4rem; 
    will-change: transform; 
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    margin-top: 4rem;
}

.about-text h2 {
    font-family: var(--font-main);
    font-size: 4rem;
    margin-bottom: 2rem;
    color: white;
}

.about-text p {
    font-size: 1.2rem;
    line-height: 1.7;
    color: #aaa;
}

.stat-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateX(10px);
    background: rgba(255,255,255,0.05);
    border-color: var(--accent-2);
}

.stat-item h3 {
    font-family: var(--font-main);
    font-size: 2rem;
    color: var(--accent-1);
    margin-bottom: 0.5rem;
}

/* --- PORTFOLIO SECTION (REDESIGNED) --- */
.portfolio {
    padding: 10rem 0;
    background: linear-gradient(to bottom, var(--bg), #111);
}

.portfolio-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.section-title {
    font-family: var(--font-main);
    font-size: clamp(3rem, 8vw, 6rem);
    color: white;
    line-height: 1;
}

.section-desc {
    max-width: 400px;
    color: #888;
    font-size: 1.1rem;
    text-align: right;
}

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

/* Project Card Styles */
.project-card {
    display: block;
    text-decoration: none;
    color: white;
    /* ZMĚNA: Použijeme pevné pozadí, aby neprosvítalo WebGL */
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    z-index: 10000;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-3);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.card-image {
    width: 100%;
    aspect-ratio: 16/10;
    /* ZMĚNA: Pevné černé pozadí přímo pod obrázkem */
    background: #000;
    position: relative;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
    opacity: 1 !important;
}

/* Hover Overlay */
.project-card .overlay {
    position: absolute;
    inset: 0;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.project-card:hover .overlay {
    opacity: 1;
}

.view-project {
    background: white;
    color: black;
    padding: 0.8rem 1.5rem;
    border-radius: 100px;
    font-family: var(--font-main);
    font-weight: bold;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    pointer-events: auto; /* Allow clicking button */
}

.project-card:hover .view-project {
    transform: translateY(0);
}

.project-card:hover img {
    transform: scale(1.05);
}
.card-content {
    padding: 2rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    opacity: 0.6;
    font-size: 0.9rem;
    font-family: var(--font-body);
    text-transform: uppercase;
}

.project-name {
    font-family: var(--font-main);
    font-size: 2rem;
    margin: 0;
    background: linear-gradient(to right, white, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Add New Card Styling */
.dashed {
    border: 2px dashed rgba(255,255,255,0.2);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plus-icon {
    font-size: 4rem;
    color: rgba(255,255,255,0.2);
    font-weight: 100;
    transition: color 0.3s;
}

.add-new:hover .plus-icon {
    color: var(--accent-1);
}

/* --- CONTACT SECTION --- */
.contact {
    padding: 8rem 0;
    background: linear-gradient(to bottom, #111, var(--bg));
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contact h2 {
    font-family: var(--font-main);
    font-size: clamp(3rem, 8vw, 8rem);
    color: white;
    line-height: 0.9;
}

form {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 2rem;
}

label {
    display: block;
    font-family: var(--font-main);
    color: var(--accent-1);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

input, textarea {
    width: 100%;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    border-radius: 0.8rem;
    color: white;
    font-family: var(--font-body);
    font-size: 1.2rem;
    padding: 1rem 1.5rem;
    transition: 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-2);
    background: rgba(125, 0, 255, 0.05);
}

.submit-btn {
    background: var(--accent-3);
    color: white;
    border: none;
    padding: 1.2rem 3rem;
    border-radius: 100px;
    font-family: var(--font-main);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 0, 85, 0.3);
    filter: brightness(1.1);
}

#form-status {
    margin-top: 1.5rem;
    text-align: center;
}

/* --- FOOTER --- */
footer {
    padding: 3rem 0;
    text-align: center;
    opacity: 0.4;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* --- RESPONSIVE --- */
@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        align-items: center;
    }

    .hero-visual {
        order: -1; /* Image on top on mobile if desired, or remove to keep below */
        margin-bottom: 2rem;
    }
    
    .profile-card {
        width: 70%;
        transform: rotate(0);
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .section-desc {
        text-align: left;
    }
    
    .portfolio-header {
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .profile-card {
        width: 90%;
    }
    
    .nav-controls {
        display: none; /* Simplified nav for very small screens or implement burger */
    }
}