/* Reset CSS i style globalne */
:root {
    --bg-color: #121212;
    --sidebar-color: #1e1e22;
    --main-color: #2a2a2e;
    --border-color: #383838;
    --text-light: #f0f2f5;
    --text-dark: #a9a9a9;
    --accent-blue: #2196f3;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top left, rgba(255, 255, 255, 0.03), transparent 30%);
    color: var(--text-light);
    min-height: 100vh;
    overflow-x: hidden;
}

/* === ANIMACJE PRZEJŚCIA MIĘDZY STRONAMI === */
body.fade-out { 
    opacity: 0; 
    transition: opacity 0.5s ease-out;
}

.page-wrapper.hiding {
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.5s ease-in, opacity 0.4s ease-in;
}

/* Dostosowany pasek przewijania */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--sidebar-color); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-blue); }

/* --- UKŁAD STRONY GŁÓWNEJ (index.html) --- */
.container { 
    display: flex; 
    max-width: 1200px; 
    width: 100%; 
    gap: 1.5rem; 
    margin: 0 auto; 
    padding: 2rem; 
}

/* Boczny pasek na stronie głównej */
.sidebar { 
    flex-basis: 25%; 
    background-color: var(--sidebar-color); 
    border-radius: 20px; 
    padding: 2rem; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    text-align: center; 
    border: 1px solid var(--border-color); 
    align-self: flex-start; 
    position: sticky; 
    top: 2rem; 
}
.profile-img { 
    width: 150px; 
    height: 150px; 
    border-radius: 50%; 
    object-fit: cover; 
    border: 5px solid var(--border-color); 
    margin-bottom: 1.5rem; 
    transition: transform 0.3s ease, box-shadow 0.3s ease; 
}
.profile-img:hover { transform: scale(1.05); box-shadow: 0 0 15px var(--accent-blue); }
.sidebar h1 { font-size: 1.75rem; font-weight: 600; margin-bottom: 0.5rem; }
.sidebar .title { background-color: var(--main-color); color: var(--text-dark); padding: 0.5rem 1rem; border-radius: 8px; font-size: 0.8rem; font-weight: 400; margin-bottom: 2rem; }
.socials { display: flex; gap: 1rem; border-top: 1px solid var(--border-color); padding-top: 1.5rem; width: 100%; justify-content: center; margin-top: 1rem; }
.socials a { color: var(--text-dark); font-size: 1.25rem; transition: color 0.3s ease, transform 0.3s ease; }
.socials a:hover { color: var(--accent-blue); transform: scale(1.2); }

/* Główna treść na stronie głównej */
.main-content { 
    flex-basis: 75%; 
    background-color: var(--main-color); 
    border: 1px solid var(--border-color); 
    border-radius: 20px; 
    padding: 2rem; 
}
.main-content nav { display: flex; justify-content: flex-end; margin-bottom: 2rem; }
.main-content nav a { color: var(--text-dark); text-decoration: none; margin-left: 1.5rem; font-size: 0.9rem; font-weight: 500; padding: 0.5rem 1rem; border-radius: 8px; position: relative; transition: color 0.3s ease; }
.main-content nav a::before { content: ''; position: absolute; width: 100%; height: 2px; bottom: 0; left: 0; background-color: var(--accent-blue); transform: scaleX(0); transform-origin: bottom right; transition: transform 0.3s ease; }
.main-content nav a:hover::before, .main-content nav a.active::before { transform: scaleX(1); transform-origin: bottom left; }
.main-content nav a.active, .main-content nav a:hover { color: var(--text-light); }

/* --- UKŁAD STRONY PROJEKTÓW (projekty.html) --- */
.page-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100%;
    transition: transform 0.5s ease-in, opacity 0.4s ease-in;
}
.top-bar { 
    height: 65px; 
    width: 100%; 
    flex-shrink: 0; 
    background-color: var(--sidebar-color); 
    border-bottom: 1px solid var(--border-color); 
    padding: 0 2rem; 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
}
.logo h1 { font-size: 1.5rem; font-weight: 600; color: var(--text-light); }
.main-nav { display: flex; gap: 0.5rem; }
.main-nav a { color: var(--text-dark); text-decoration: none; font-size: 0.9rem; font-weight: 500; padding: 0.5rem 1rem; border-radius: 8px; display: flex; align-items: center; gap: 0.7rem; transition: background-color 0.3s, color 0.3s; }
.main-nav a:hover { background-color: #2a2a2e; color: var(--text-light); }
.main-nav a.active { background-color: var(--accent-blue); color: var(--text-light); }

.projects-content { 
    flex-grow: 1; 
    overflow-y: auto;
    padding: 2rem; 
}
.projects-title { text-align: center; margin-bottom: 2.5rem; font-size: 2rem; }

/* Style dla kart projektów */
#projects-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 1.5rem; 
    max-width: 1200px;
    margin: 0 auto;
}
.project-card { 
    background-color: var(--main-color); 
    border: 1px solid var(--border-color); 
    border-radius: 12px; 
    overflow: hidden; 
    transition: transform 0.3s ease, box-shadow 0.3s ease; 
    animation: slideUp 0.5s ease-out forwards; 
}
.project-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.2); }
.project-card img { width: 100%; height: 200px; object-fit: cover; }
.project-card-content { padding: 1.5rem; }
.project-card-content h3 { font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--text-light); }
.project-card-content p { color: var(--text-dark); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1.5rem; }
.project-card-content a { color: var(--text-light); background-color: var(--accent-blue); text-decoration: none; padding: 0.6rem 1.2rem; border-radius: 8px; font-weight: 500; transition: background-color 0.3s ease; display: inline-block; }
.project-card-content a:hover { background-color: #1976d2; }

/* --- WSPÓLNE STYLE I SEKCJE --- */
section { margin-bottom: 3rem; }
section h2 { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; position: relative; padding-bottom: 0.5rem; }
section h2 .underline { content: ''; position: absolute; bottom: 0; left: 0; width: 50px; height: 3px; background-color: var(--accent-blue); border-radius: 3px; transform: scaleX(0); transform-origin: left; transition: transform 0.5s 0.3s ease; }
section.visible h2 .underline { transform: scaleX(1); }
section h2 i { margin-right: 0.75rem; color: var(--accent-blue); }

.highlights-grid { display: flex; justify-content: space-between; gap: 1.5rem; margin-top: 2rem; }
.highlight-item { flex-basis: 30%; }
.highlight-item .number { font-size: 2.5rem; font-weight: 700; color: var(--accent-blue); }
.highlight-item .label { color: var(--text-dark); font-size: 0.8rem; margin-top: 0.25rem; }

.portfolio-subtitle { color: var(--text-dark); margin-top: -0.5rem; margin-bottom: 2rem; }
.portfolio-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.portfolio-item { background-color: var(--sidebar-color); border-radius: 12px; overflow: hidden; border: 1px solid var(--border-color); position: relative; cursor: pointer; }
.portfolio-item .image-wrapper { overflow: hidden; border-radius: 12px; }
.portfolio-item img { width: 100%; height: auto; display: block; transition: transform 0.4s ease; }
.portfolio-item:hover img { transform: scale(1.1); }
.portfolio-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to top, rgba(0,0,0,0.9), transparent 70%); display: flex; flex-direction: column; justify-content: flex-end; padding: 1.5rem; opacity: 0; transition: opacity 0.4s ease; }
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay h3 { font-size: 1.2rem; margin-bottom: 0.25rem; transform: translateY(15px); transition: transform 0.4s 0.1s ease; }
.portfolio-overlay p { font-size: 0.85rem; color: var(--text-dark); transform: translateY(15px); transition: transform 0.4s 0.2s ease;}
.portfolio-item:hover .portfolio-overlay h3, .portfolio-item:hover .portfolio-overlay p { transform: translateY(0); }

/* --- ANIMACJE --- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(20px); } to { transform: translateY(0); } }
.sidebar, .main-content { animation: fadeIn 0.6s ease-out, slideUp 0.6s ease-out; }
.main-content { animation-delay: 0.2s; animation-fill-mode: backwards; }
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 1024px) { 
    .container { flex-direction: column; padding: 1rem; } 
    .sidebar { position: static; align-self: auto; } 
    .highlights-grid { flex-direction: column; align-items: center; text-align: center; } 
}
@media (max-width: 768px) {
    .main-content nav { justify-content: center; }
}
@media (max-width: 600px) { 
    .portfolio-grid { grid-template-columns: 1fr; } 
    .main-content nav { flex-wrap: wrap; gap: 0.5rem; } 
    .main-content nav a { margin-left: 0; } 
    .top-bar { padding: 0 1rem; } 
    .logo h1 { font-size: 1.2rem; } 
    .main-nav a span { display: none; } 
    .main-nav a { 
        padding: 0.8rem; /* Zwiększono obszar dotyku */
        font-size: 1.2rem; 
    }
    .projects-content {
        padding: 1.5rem; /* Więcej przestrzeni na mobilnych */
    }
    .projects-title {
        font-size: 1.5rem; /* Mniejszy tytuł na mobilnych */
    }
}