/* --- ZMIENNE I PODSTAWY --- */
:root {
    --primary-blue: #1E3A8A;
    --navbar-bg: rgba(30, 41, 59, 0.98);
    --light-gray: #f5f7f9;
    --text-dark: #111827;
    --text-muted: #4b5563;
    --border-soft: rgba(0,0,0,0.08);
}

body { 
    margin: 0; 
    padding: 0; 
    font-family: 'Lato', sans-serif; 
    background-color: #fcfcfc; 
    color: #1f2937; 
}

/* --- NAVBAR --- */
.navbar {
    position: fixed; 
    top: 0; 
    width: 100%; 
    background-color: var(--navbar-bg);
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    padding: 12px 40px; 
    box-sizing: border-box; 
    z-index: 1000;
}

.nav-logo { 
    display: flex; 
    align-items: center; 
    color: white; 
    text-decoration: none; 
    font-weight: 700; 
    font-size: 18px; 
}

.nav-logo img { 
    height: 35px; 
    background: white; 
    padding: 3px; 
    border-radius: 4px; 
    margin-right: 12px; 
}

.nav-links { 
    display: flex; 
    gap: 20px; 
}

.nav-links a { 
    color: #cbd5e1; 
    text-decoration: none; 
    font-size: 14px; 
    transition: 0.3s; 
}

.nav-links a:hover, .nav-links a.active-link { 
    color: white; 
}

.nav-links a.active-link {
    font-weight: bold;
}

/* --- HEADER / BANNER --- */
.header-banner {
    margin-top: 60px;
    background: #fff;
    padding: 40px 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-container {
    max-width: 1100px; 
    width: 100%;
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    gap: 30px;
}

.logos { 
    display: flex; 
    align-items: center; 
    gap: 20px; 
}

.logos img { 
    height: clamp(60px, 10vw, 85px); /* Skalowanie logo IMPAN */
    width: auto;
}

.logo-banach {
    height: clamp(80px, 12vw, 115px) !important; /* Skalowanie logo Banacha (zgodnie z prośbą) */
}

.header-text { 
    text-align: right; 
}

.header-text h1 { 
    font-size: clamp(20px, 2.5vw, 28px); 
    color: var(--primary-blue); 
    margin: 0; 
    font-weight: 900; 
}

.header-text p { 
    font-size: clamp(14px, 1.5vw, 18px); 
    margin: 5px 0 0 0; 
    color: var(--text-muted); 
}

/* --- KONTENER TREŚCI --- */
.responsive-container {
    max-width: 900px;
    margin: 40px auto;
    font-size: clamp(17px, 1.4vw, 20px);
    line-height: 1.6;
    padding: 0 20px 60px;
}

.main-box {
    border: 1px solid var(--border-soft);
    border-radius: 18px;
    padding: clamp(20px, 4vw, 45px);
    background: white;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

/* --- ELEMENTY FORMULARZA I TEKSTU --- */
.section-title {
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.info-text {
    color: var(--text-muted);
    font-size: 0.95em;
    margin-top: 10px;
}

.bank-code {
    word-break: break-all;
    font-family: 'Courier New', monospace;
    background: #f1f5f9;
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    margin: 4px 0;
}

/* --- PRZYCISK REGISTRACJI --- */
.btn-registration {
    display: inline-block;
    width: 100%;
    max-width: 320px;
    box-sizing: border-box;
    padding: 18px 32px;
    font-size: 20px;
    font-weight: 800;
    color: #ffffff;
    background: var(--primary-blue);
    border-radius: 15px;
    text-decoration: none;
    transition: transform 0.2s, background 0.2s;
    text-align: center;
}

.btn-registration:hover {
    background: #172e6e;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 58, 138, 0.3);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .navbar { padding: 10px 20px; }
    .header-container { flex-direction: column; text-align: center; }
    .header-text { text-align: center; }
    .logos { justify-content: center; }
}