:root {
    --primary: #003973;
    --primary-dark: #00254d;
    --secondary: #00b5d8;
    --text: #1b1b1f;
    --muted: #5d5d66;
    --bg: #f5f7fb;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    color: var(--text);
    background-color: var(--bg);
}

a {
    color: inherit;
    text-decoration: none;
}

a.link {
    color: var(--secondary);
    font-weight: 600;
}

a.link:hover {
    text-decoration: underline;
}

.container {
    width: min(1100px, 92%);
    margin: 0 auto;
}

.top-bar {
    background: var(--primary);
    color: var(--white);
    font-size: 0.85rem;
    padding: 0.5rem 0;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar .icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--secondary);
    margin-left: 0.3rem;
    color: var(--white);
    font-weight: 600;
}

.main-nav {
    background: var(--white);
    box-shadow: 0 4px 18px rgba(0, 25, 70, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.main-nav ul {
    display: flex;
    gap: 1rem;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.main-nav a {
    font-weight: 600;
    color: var(--text);
}

.main-nav .btn {
    margin-left: 0.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    color: var(--primary);
}

.brand-logo {
    display: block;
    height: 44px;
    width: auto;
}

.brand-text {
    font-size: 1.05rem;
    letter-spacing: 0.04em;
    color: var(--text);
    text-transform: uppercase;
}

.hero {
    background: linear-gradient(135deg, rgba(0, 57, 115, 0.92), rgba(0, 181, 216, 0.92)),
        url('https://images.unsplash.com/photo-1545239351-1141bd82e8a6?auto=format&fit=crop&w=1600&q=80') center/cover;
    color: var(--white);
    padding: 5rem 0 4rem;
}

.hero .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: center;
    gap: 2rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    max-width: 480px;
}

.hero .card {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 1rem;
    padding: 2rem;
    backdrop-filter: blur(4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

section {
    padding: 4rem 0;
}

.products h2,
.benefits h2,
.cta h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.products .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--white);
    border-radius: 1rem;
    padding: 1.8rem;
    box-shadow: 0 20px 45px rgba(0, 41, 88, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 26px 60px rgba(0, 41, 88, 0.12);
}

.card h3 {
    margin-top: 0;
    color: var(--primary);
}

.card p {
    color: var(--muted);
    line-height: 1.6;
}

.benefits .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    align-items: center;
}

.benefits ul {
    padding-left: 1rem;
    color: var(--muted);
    line-height: 1.7;
}

.highlight {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    margin-bottom: 1rem;
    box-shadow: 0 10px 28px rgba(0, 41, 88, 0.08);
}

.highlight .number {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--secondary);
}

.highlight .description {
    display: block;
    margin-top: 0.5rem;
    color: var(--muted);
}

.cta {
    background: linear-gradient(120deg, rgba(0, 57, 115, 0.92), rgba(0, 181, 216, 0.92));
    color: var(--white);
    border-radius: 2rem;
    width: min(1100px, 92%);
    margin: 0 auto 4rem;
    padding: 3rem clamp(1.5rem, 4vw, 3.5rem);
}

.cta .container {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: space-between;
}

.cta p {
    max-width: 540px;
    line-height: 1.7;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--secondary);
    color: var(--white);
    box-shadow: 0 15px 25px rgba(0, 181, 216, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 35px rgba(0, 181, 216, 0.45);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
}

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
    background: transparent;
}

.site-footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 3rem 0;
}

.site-footer.compact {
    padding: 1.5rem 0;
}

.site-footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.site-footer h3 {
    margin-top: 0;
    color: var(--white);
}

.form-page {
    background: linear-gradient(160deg, rgba(0, 57, 115, 0.05), rgba(0, 181, 216, 0.1));
}

.form-container {
    padding: 5rem 0;
}

.form-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 1.5rem;
    box-shadow: 0 20px 45px rgba(0, 41, 88, 0.08);
    max-width: 640px;
    margin: 0 auto;
}

.form-card h1 {
    margin-top: 0;
    color: var(--primary);
}

.form-card p {
    color: var(--muted);
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select {
    padding: 0.75rem 1rem;
    border-radius: 0.6rem;
    border: 1px solid rgba(0, 57, 115, 0.18);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(0, 181, 216, 0.2);
}

.form-row {
    display: grid;
    gap: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.error {
    color: #d0312d;
    font-size: 0.85rem;
    margin-top: 0.4rem;
}

.has-error input,
.has-error select {
    border-color: #d0312d;
}

@media (min-width: 720px) {
    .form-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .cta .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav ul {
        gap: 0.5rem;
    }
}