:root {
    --primary: #0d3b66;
    --primary-dark: #062041;
    --accent: #f4d35e;
    --accent-soft: rgba(244, 211, 94, 0.15);
    --background: #f8f9fb;
    --surface: #ffffff;
    --text: #1f2933;
    --text-light: rgba(255, 255, 255, 0.85);
    --muted: #6c7a89;
    --shadow: 0 22px 48px rgba(13, 59, 102, 0.16);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background-color: var(--background);
    line-height: 1.6;
}

a {
    color: inherit;
}

a:hover {
    color: var(--primary);
}

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
}

.hero {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 88vh;
    text-align: center;
    color: var(--text-light);
    background: linear-gradient(120deg, rgba(13, 59, 102, 0.88), rgba(13, 59, 102, 0.45)),
    url("https://images.unsplash.com/photo-1498050108023-c5249f4df085?auto=format&fit=crop&w=1600&q=80") center/cover no-repeat;
}

.hero__content {
    position: relative;
    z-index: 2;
    width: min(720px, 90vw);
    display: grid;
    gap: 1.5rem;
}

.hero__tagline {
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
}

.hero__title {
    font-family: "Poppins", "Inter", sans-serif;
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    line-height: 1.1;
}

.hero__subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 0.5rem;
}

.hero__cta {
    justify-self: center;
    padding: 0.95rem 2.6rem;
    background: var(--accent);
    color: #0d1b2a;
    font-weight: 600;
    border-radius: 999px;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 12px 32px rgba(244, 211, 94, 0.35);
}

.hero__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 42px rgba(244, 211, 94, 0.4);
}

.section {
    padding: clamp(4rem, 8vw, 6rem) 0;
}

.section--light {
    background: var(--background);
}

.section--accent {
    background: var(--accent-soft);
}

.section--dark {
    background: var(--primary-dark);
    color: var(--text-light);
}

.section h2 {
    font-family: "Poppins", "Inter", sans-serif;
    font-size: clamp(2rem, 4vw, 2.6rem);
    margin-bottom: 1.5rem;
}

.section p {
    color: inherit;
    max-width: 720px;
}

.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.card {
    background: var(--surface);
    border-radius: 1rem;
    padding: 1.75rem;
    box-shadow: var(--shadow);
    display: grid;
    gap: 0.75rem;
}

.card h3 {
    font-size: 1.3rem;
    color: var(--primary);
}

.details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.details__item {
    background: var(--surface);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow);
    display: grid;
    gap: 1rem;
}

.details__item ul {
    list-style: none;
    display: grid;
    gap: 0.5rem;
    color: var(--muted);
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.curriculum {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.75rem;
}

.module {
    background: var(--surface);
    border-radius: 1rem;
    padding: 1.8rem;
    box-shadow: var(--shadow);
    display: grid;
    gap: 0.9rem;
}

.module h3 {
    color: var(--primary);
    font-size: 1.2rem;
}

.module ul {
    list-style: none;
    display: grid;
    gap: 0.55rem;
    color: var(--muted);
}

.module p {
    color: var(--muted);
    text-align: left;
    line-height: 1.6;
}

.module p strong {
    color: var(--primary);
}

.section--dark .section-intro {
    color: rgba(255, 255, 255, 0.75);
}

.selection-info {
    background: rgba(13, 34, 54, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 1rem;
    padding: clamp(1.5rem, 3vw, 2rem);
    margin-top: 2rem;
    display: grid;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.85);
}

.selection-info ul {
    list-style: disc;
    padding-left: 1.25rem;
    display: grid;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.78);
}

.selection-info li::marker {
    color: var(--accent);
}

.subscription-form {
    background: rgba(13, 34, 54, 0.74);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1.25rem;
    padding: clamp(2rem, 4vw, 3rem);
    display: grid;
    gap: 1.25rem;
    margin-top: 2rem;
}

.external-form-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2.5rem;
    padding: 1.05rem 2.6rem;
    border-radius: 999px;
    background: var(--accent);
    color: #0d1b2a;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 12px 32px rgba(244, 211, 94, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.external-form-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 42px rgba(244, 211, 94, 0.4);
}

.form-group {
    display: grid;
    gap: 0.45rem;
}

label {
    font-weight: 600;
}

input,
select,
textarea {
    padding: 0.85rem 1rem;
    border-radius: 0.75rem;
    border: none;
    font: inherit;
    color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

textarea {
    resize: vertical;
}

.form-submit {
    justify-self: start;
    padding: 0.95rem 2.4rem;
    border-radius: 999px;
    border: none;
    background: var(--accent);
    color: #0d1b2a;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 12px 32px rgba(244, 211, 94, 0.35);
}

.form-submit:hover {
    transform: translateY(-1px);
}

.contact-note {
    margin-top: 1.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-note a {
    color: var(--accent);
    text-decoration: underline;
}

.footer {
    background: #040e1a;
    color: rgba(255, 255, 255, 0.6);
    padding: 2rem 0;
}

.footer__content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.footer nav {
    display: flex;
    gap: 1.5rem;
    font-weight: 500;
}

.footer nav a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.footer nav a:hover {
    color: var(--accent);
}

@media (max-width: 720px) {
    .hero {
        min-height: 80vh;
    }

    .highlights,
    .details,
    .curriculum {
        gap: 1.25rem;
    }

    .details__item,
    .module {
        padding: 1.5rem;
    }

    .subscription-form {
        padding: 1.75rem;
    }

    .footer nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}