/* 1. KONFIGURACJA ZMIENNYCH - MOTYWY */
:root {
    --bg-color: #0a0a0c;
    --card-bg: #16161a;
    --accent-color: #00d4ff;
    --text-main: #ffffff;
    --text-secondary: #a0a0a8;
    --nav-bg: rgba(10, 10, 12, 0.85);
    --nav-text: #ffffff;
    --modal-bg: #16161a;
    --modal-text: #ffffff;
    --transition: 0.3s ease;
}

body.light-theme {
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --accent-color: #007aff; 
    --text-main: #1d1d1f;
    --text-secondary: #86868b;
    --nav-bg: rgba(245, 245, 247, 0.85);
    --nav-text: #1d1d1f;
    --modal-bg: #ffffff;
    --modal-text: #1d1d1f;
}

body.blue-theme {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --accent-color: #58a6ff;
    --text-main: #c9d1d9;
    --text-secondary: #8b949e;
    --nav-text: #c9d1d9;
    --modal-bg: #161b22;
    --modal-text: #c9d1d9;
}

body.green-theme {
    --bg-color: #050a06;
    --card-bg: #0b140e;
    --accent-color: #2ecc71;
    --text-main: #e8f5e9;
    --text-secondary: #a5d6a7;
    --nav-text: #e8f5e9;
    --modal-bg: #0b140e;
    --modal-text: #e8f5e9;
}

/* 2. RESET I PODSTAWY */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* 3. NAWIGACJA */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--nav-bg); 
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(128, 128, 128, 0.2);
    transition: background-color 0.3s;
}

nav .container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 120px; 
}

.logo-link { display: flex; align-items: center; text-decoration: none; transition: 0.3s; }
.navbar-logo { height: auto; max-height: 100px; display: block; transition: 0.3s; }
.logo-link:hover .navbar-logo { transform: scale(1.05); }

nav ul { display: flex; list-style: none; gap: 40px; }
nav a { 
    color: var(--nav-text); 
    text-decoration: none; 
    font-weight: 500;
    transition: color 0.3s;
}
nav a:hover { color: var(--accent-color); }

.nav-actions { display: flex; align-items: center; justify-content: flex-end; gap: 20px; }

.lang-switch button {
    background: none;
    border: 1px solid var(--text-secondary);
    color: var(--text-main);
    padding: 4px 8px;
    cursor: pointer;
    border-radius: 4px;
    transition: 0.3s;
}

.theme-switch { display: flex; gap: 8px; }
.theme-dot { width: 16px; height: 16px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; transition: 0.2s; }
.theme-dot:hover { transform: scale(1.2); }

.dot-dark  { background-color: #0a0a0c; border-color: #ffffff33; }
.dot-light { background-color: #f5f5f7; border-color: #00000033; }
.dot-blue  { background-color: #58a6ff; }
.dot-green { background-color: #2ecc71; }

/* 4. HERO SECTION */
.hero { padding: 220px 0 100px; text-align: center; }
.hero h1 { font-size: clamp(2.5rem, 8vw, 4.5rem); margin-bottom: 30px; line-height: 1.1; }
.hero h1 span { color: var(--accent-color); }
.hero .subtitle { color: var(--text-main); font-size: 1.4rem; font-weight: 500; max-width: 850px; margin: 0 auto 25px; }
.hero-details { color: var(--text-secondary); font-size: 1.1rem; max-width: 750px; margin: 0 auto 45px; }
.hero strong { color: var(--accent-color); }

/* --- PRZYCISKI BAZOWE --- */
.btn { 
    padding: 14px 30px; 
    border-radius: 10px; 
    text-decoration: none; 
    font-weight: 600; 
    transition: 0.3s;
    display: inline-flex; /* Zmiana na inline-flex dla lepszej kontroli wewnątrz flex-row */
    align-items: center;
    justify-content: center;
}
.btn.primary { background: var(--accent-color); color: #000; }
.btn.secondary { border: 1px solid var(--accent-color); color: var(--accent-color); }
.btn:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0, 212, 255, 0.2); }

/* --- KONTENER PRZYCISKÓW (UKŁAD POZIOMY) --- */
.cta-group { 
    display: flex !important; 
    flex-direction: row !important; 
    gap: 20px; 
    justify-content: center; 
    align-items: center;
    margin-top: 35px;
    width: 100%;
}

.cta-group .btn {
    width: auto !important;
    min-width: 180px;
}

/* 5. PROJEKTY */
.projects-section { padding: 100px 0; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.project-card { 
    background: var(--card-bg); 
    border-radius: 20px; 
    border: 1px solid rgba(128,128,128,0.2); 
    transition: 0.3s;
    overflow: hidden;
    cursor: pointer;
}

.project-image { width: 100%; height: 200px; background: #111; overflow: hidden; }
.project-image img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; transition: 0.3s; }
.project-card:hover .project-image img { opacity: 1; transform: scale(1.05); }

.project-content { padding: 30px; }
.project-tag { color: var(--accent-color); font-size: 0.75rem; text-transform: uppercase; margin-bottom: 10px; display: block; }
.project-card h3 { margin-bottom: 10px; color: var(--text-main); }
.project-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* 6. MODAL */
.modal {
    display: none; 
    position: fixed;
    z-index: 2000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    overflow-y: auto; /* Pozwala przewijać cały modal, jeśli treść jest długa */
    padding: 20px 0;
}

.modal-content {
    background-color: var(--modal-bg); 
    color: var(--modal-text);
    position: relative;
    margin: auto; /* Kluczowe dla centrowania w połączeniu z flex w .modal-content */
    top: 50%;
    transform: translateY(-50%);
    width: 95%;
    max-width: 1000px;
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(128, 128, 128, 0.2); 
    display: flex;
    flex-direction: column;
    align-items: center;
}

.close-modal {
    position: absolute;
    right: 25px; top: 15px;
    font-size: 30px;
    color: var(--modal-text) !important;
    cursor: pointer;
    transition: 0.3s;
    line-height: 1;
}

.modal-slider {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    gap: 20px;
}

.slider-btn {
    background: rgba(128, 128, 128, 0.1);
    color: var(--accent-color);
    width: 50px; 
    height: 50px;
    min-width: 50px; 
    min-height: 50px;
    flex-shrink: 0; 
    border: 1px solid rgba(128, 128, 128, 0.2);
    border-radius: 50%; 
    cursor: pointer;
    font-size: 24px;
    display: flex; 
    align-items: center; 
    justify-content: center;
    transition: 0.3s;
}

.slider-btn:hover {
    background: var(--accent-color);
    color: #000;
}

.slide-content {
    text-align: center;
    margin-top: 25px;
    width: 100%;
}

.slide-content h3, 
.slide-content p, 
.slider-info {
    color: var(--modal-text) !important; 
    margin-bottom: 10px;
}

.slider-info {
    font-weight: bold;
    color: var(--accent-color) !important;
}

.slide img {
    max-width: 100%;
    max-height: 55vh;
    border-radius: 12px;
    object-fit: contain;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* 7. STOPKA */
footer { padding: 80px 0; text-align: center; border-top: 1px solid rgba(128,128,128,0.2); }
.socials { margin-top: 20px; }
.socials a {
    text-decoration: none;
    margin: 0 10px;
    padding: 10px 20px;
    border: 1px solid var(--text-secondary);
    border-radius: 8px;
    color: var(--text-main);
    transition: 0.3s;
}
.socials a:hover {
    background-color: var(--text-main);
    color: var(--bg-color);
}

/* 8. RESPONSYWNOŚĆ */

/* Dla tabletów i małych laptopów */
@media (max-width: 1100px) {
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    nav .container { gap: 20px; }
    nav ul { gap: 20px; }
}

/* GŁÓWNA POPRAWKA DLA MOBILE (Telefony i małe tablety) */
@media (max-width: 768px) {
    /* Nawigacja */
    nav .container {
        display: flex;
        flex-direction: column;
        height: auto;
        padding: 15px 10px;
        gap: 15px;
    }

    .navbar-logo {
        max-height: 60px;
    }

    nav ul {
        gap: 15px;
        font-size: 0.9rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-actions {
        width: 100%;
        justify-content: center;
        gap: 15px;
    }

    /* MODAL I ZDJĘCIA - POPRAWKA WIELKOŚCI */
    .modal-content {
        padding: 40px 15px 25px; /* Mniejsze marginesy boczne */
        width: 98%;
    }

    .slide img {
        width: 100% !important;   /* Zdjęcie na całą szerokość modala */
        max-width: 100% !important;
        height: auto !important;  /* Proporcjonalna wysokość */
        max-height: 50vh !important; /* Zwiększony limit wysokości dla lepszej widoczności */
        object-fit: contain;
    }

    .modal-slider {
        gap: 10px; /* Ciasniejszy układ przycisków */
    }

    /* Stopka */
    footer {
        padding: 40px 0;
    }

    .socials {
        display: flex;
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .socials a {
        width: 100%;
        max-width: 250px;
        margin: 0;
    }

    /* Sekcja Projektów */
    .projects-grid { 
        grid-template-columns: 1fr; 
    }
}

/* Specyficzne poprawki dla bardzo małych ekranów */
@media (max-width: 550px) {
    .cta-group {
        flex-direction: column !important; 
        gap: 15px;
        width: 100%;
    }
    .cta-group .btn {
        width: 100% !important;
    }

    .hero {
        padding-top: 260px !important; /* Zwiększony odstęp dla bezpieczeństwa */
        padding-bottom: 60px;
    }

    .hero h1 {
        line-height: 1.2;
        margin-bottom: 20px;
        font-size: 2.2rem;
    }

    /* Jeszcze mniejsze przyciski slidera, by nie zasłaniały dużego zdjęcia */
    .slider-btn {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        font-size: 18px;
    }
}

/* FIX: Tryb jasny Modal */
body.light-theme .modal-content,
body.light-theme .modal-content h3,
body.light-theme .modal-content p,
body.light-theme .modal-content span,
body.light-theme .slide-content *, 
body.light-theme .slider-info {
    color: #1d1d1f !important;
}

body.light-theme .close-modal {
    color: #1d1d1f !important;
}

/* 9. STACK CARDS & DETAILS */
.stack-card {
    cursor: pointer;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.stack-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.1);
}

.stack-detail-content {
    padding: 20px;
    text-align: center;
    width: 100%;
}

.stack-detail-content h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.stack-detail-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--modal-text);
    max-width: 800px;
    margin: 0 auto 20px;
}

.stack-detail-content ul {
    list-style: none;
    padding: 0;
    text-align: left;
    display: inline-block;
}

.stack-detail-content li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 25px;
    color: var(--modal-text);
    font-size: 1.05rem;
}

.stack-detail-content li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.2rem;
}

/* WYMUSZENIE UKŁADU POZIOMEGO DLA KART TECHNOLOGII */
.stack-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important; /* Trzy równe kolumny obok siebie */
    gap: 25px; /* Odstęp między kartami */
    width: 100%;
    margin-top: 40px;
    align-items: stretch; /* Sprawia, że karty mają tę samą wysokość */
}

/* Styl samej karty (upewnijmy się, że nie ma szerokości 100%) */
.stack-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(128, 128, 128, 0.2);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    text-align: center;
}

/* RESPONSYWNOŚĆ: Tylko na małych ekranach (telefony) niech będą pod sobą */
@media (max-width: 900px) {
    .stack-grid {
        grid-template-columns: repeat(2, 1fr) !important; /* Na tabletach 2 obok siebie */
    }
}

@media (max-width: 600px) {
    .stack-grid {
        grid-template-columns: 1fr !important; /* Na telefonach 1 pod drugim */
    }
}

body.light-theme .stack-detail-content h3,
body.light-theme .stack-detail-content p,
body.light-theme .stack-detail-content li {
    color: #1d1d1f !important;
}

body.light-theme .stack-card h3 { color: var(--text-main); }
body.light-theme .stack-card p { color: var(--text-secondary); }

/* --- OSTATNIE SZLIFY I POPRAWKI BŁĘDÓW --- */

/* 1. Usunięcie niebieskiej poświaty/błysku przy klikaniu (Mobile & Desktop) */
.project-card, 
.stack-card, 
.btn, 
button,
.slider-btn {
    -webkit-tap-highlight-color: transparent; /* Usuwa błysk na Androidzie/iOS */
    outline: none !important;                 /* Usuwa ramkę na komputerach */
}

/* Styl dla Lightboxa */
#lightbox {
    display: none; /* Sterowane przez JS */
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 10000 !important; /* Bezpieczna, bardzo wysoka wartość */
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}

#lightbox-img {
    max-width: 95%;
    max-height: 90%;
    object-fit: contain;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    display: block;
}

.close-lightbox {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 50px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    z-index: 10001;
}

/* Kursor lupy nad zdjęciem w modalu */
.slide img {
    cursor: zoom-in;
}