body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f7f9fb;
    color: #222;
}

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

.main-header {
    background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    padding-bottom: 2rem;
}
.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0 0.5rem 0;
}
.logo-title {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}
.logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #fff;
    object-fit: contain;
}
.brand {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: 1px;
}
nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.2s;
}
nav a:hover {
    color: #ffd700;
}
.hero {
    text-align: center;
    margin-top: 2.5rem;
}
.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.7rem;
    font-weight: 800;
}
.subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #e0e6f7;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}
.cta-btn {
    background: #ffd700;
    color: #1e3c72;
    padding: 0.9em 2em;
    border-radius: 30px;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(30,60,114,0.08);
    transition: background 0.2s, color 0.2s;
}
.cta-btn:hover {
    background: #fff;
    color: #2a5298;
}

.about-section, .courses-section, .contact-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-section h2, .about-section p,
.courses-section h2, .courses-section p,
.contact-section h2, .contact-section p {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.courses-grid {
    justify-content: center;
}

.course-card {
    align-items: center;
    text-align: center;
}

.contact-flex {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    width: 100%;
}

.course-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(30,60,114,0.07);
    padding: 2rem 1.5rem;
    flex: 1 1 320px;
    max-width: 400px;
    min-width: 260px;
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}
.course-card h3 {
    margin-top: 0;
    color: #1e3c72;
    font-size: 1.3rem;
}
.course-link {
    margin-top: 1.2rem;
    background: #2a5298;
    color: #fff;
    padding: 0.6em 1.5em;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}
.course-link:hover:not(.disabled) {
    background: #ffd700;
    color: #1e3c72;
}
.course-link.disabled {
    background: #ccc;
    color: #888;
    cursor: not-allowed;
    pointer-events: none;
}

.contact-section {
    margin: 2rem auto 3rem auto;
    background: #e0e6f7;
    border-radius: 12px;
    padding: 2rem 1rem;
    max-width: 700px;
}
.contact-section h2 {
    text-align: center;
    margin-bottom: 1.5rem;
}
.phone-number {
    font-weight: 700;
    color: #1e3c72;
}
.image-placeholder img {
    display: block;
    margin: 0 auto;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(30,60,114,0.08);
}

footer, footer .container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    width: 100%;
    margin: 0 auto;
    padding: 1.2rem 0;
    background: #1e3c72;
    color: #fff;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

@media (max-width: 900px) {
    .courses-grid {
        flex-direction: column;
        align-items: center;
    }
    .header-flex {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 0.5rem;
    }
    .main-header {
        padding-bottom: 1rem;
    }
    .hero h1 {
        font-size: 1.5rem;
    }
    .about-section h2, .courses-section h2 {
        font-size: 1.3rem;
    }
    .course-card {
        padding: 1rem 0.7rem;
    }
    .contact-section {
        padding: 1rem 0.5rem;
    }
}

.jaktestowac-section {
    margin: 2.5rem auto 2.5rem auto;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(30,60,114,0.07);
    padding: 2.5rem 1.5rem;
    max-width: 700px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.jaktestowac-logo {
    display: block;
    margin: 0 auto 1.2rem auto;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(30,60,114,0.08);
}
.jaktestowac-link {
    display: inline-block;
    margin-top: 1.2rem;
    background: #1e3c72;
    color: #fff;
    padding: 0.7em 1.7em;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background 0.2s, color 0.2s;
}
.jaktestowac-link:hover {
    background: #ffd700;
    color: #1e3c72;
}

.founders-section {
    margin: 2.5rem auto 2.5rem auto;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(30,60,114,0.07);
    padding: 2.5rem 1.5rem;
    max-width: 900px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.founders-section h2 {
    margin-bottom: 2rem;
}
.founders-grid {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
    justify-content: center;
}
.founder-card {
    background: #f7f9fb;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(30,60,114,0.05);
    padding: 1.5rem 1rem;
    max-width: 320px;
    min-width: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.founder-photo {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid #1e3c72;
}
.founder-card h3 {
    margin: 0.5rem 0 0.7rem 0;
    color: #1e3c72;
}
.founder-link {
    margin-top: 1rem;
    display: inline-block;
    background: #1e3c72;
    color: #fff;
    padding: 0.5em 1.3em;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: background 0.2s, color 0.2s;
}
.founder-link:hover {
    background: #ffd700;
    color: #1e3c72;
}
@media (max-width: 700px) {
    .founders-grid {
        flex-direction: column;
        gap: 1.5rem;
    }
}

.product-blur-section {
    margin: 2.5rem auto 2.5rem auto;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(30,60,114,0.07);
    padding: 2.5rem 1.5rem;
    max-width: 700px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.blur-content {
    pointer-events: none;
    user-select: none;
    opacity: 0.7;
    transition: opacity 0.3s;
}
.product-blur-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}
.product-blur-section p {
    font-size: 1.1rem;
    color: #444;
}