:root {
    --sl-navy: #0f2744;
    --sl-blue: #1e5a8a;
    --sl-accent: #2d8fd5;
    --sl-accent-light: #e8f4fc;
    --sl-text: #1a2332;
    --sl-muted: #5c6b7a;
    --sl-border: #d8e2ec;
    --sl-bg: #f6f9fc;
    --sl-white: #ffffff;
    --sl-radius: 12px;
    --sl-shadow: 0 4px 24px rgba(15, 39, 68, 0.08);
    --sl-max: 1100px;
    --sl-font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--sl-font);
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--sl-text);
    background: var(--sl-bg);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--sl-blue);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

a:hover {
    color: var(--sl-accent);
}

.container {
    width: min(100% - 2rem, var(--sl-max));
    margin-inline: auto;
}

/* Header */
.site-header {
    background: var(--sl-white);
    border-bottom: 1px solid var(--sl-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 0 rgba(15, 39, 68, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.85rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: inherit;
}

.brand img {
    height: 48px;
    width: auto;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.brand-name {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--sl-navy);
}

.brand-tagline {
    font-size: 0.78rem;
    color: var(--sl-muted);
    max-width: 22rem;
}

.site-nav {
    display: flex;
    gap: 0.35rem;
}

.site-nav a {
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--sl-muted);
    padding: 0.5rem 0.9rem;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: var(--sl-navy);
    background: var(--sl-accent-light);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--sl-navy) 0%, var(--sl-blue) 55%, #2563a8 100%);
    color: var(--sl-white);
    padding: 3.5rem 0 4rem;
}

.hero h1 {
    margin: 0 0 0.75rem;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero .lead {
    margin: 0;
    font-size: 1.15rem;
    max-width: 38rem;
    opacity: 0.92;
    line-height: 1.6;
}

/* Main sections */
main {
    padding: 2.5rem 0 4rem;
}

.page-title {
    margin: 0 0 0.5rem;
    font-size: clamp(1.6rem, 3vw, 2rem);
    color: var(--sl-navy);
    letter-spacing: -0.02em;
}

.page-intro {
    margin: 0 0 2rem;
    color: var(--sl-muted);
    max-width: 42rem;
}

.section {
    margin-bottom: 3rem;
}

.section h2 {
    margin: 0 0 1rem;
    font-size: 1.35rem;
    color: var(--sl-navy);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--sl-accent-light);
}

.section > p {
    margin: 0 0 1.25rem;
    color: var(--sl-text);
}

.card-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: var(--sl-white);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    padding: 1.35rem 1.5rem;
    box-shadow: var(--sl-shadow);
}

.card h3 {
    margin: 0 0 0.65rem;
    font-size: 1.05rem;
    color: var(--sl-navy);
}

.card p {
    margin: 0 0 0.85rem;
    font-size: 0.98rem;
    color: var(--sl-muted);
}

.card-links {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.card-links a {
    font-size: 0.92rem;
    font-weight: 600;
}

.card-links a::after {
    content: " →";
}

/* Team */
.team-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.team-card {
    background: var(--sl-white);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    padding: 1.75rem;
    box-shadow: var(--sl-shadow);
}

.team-card h3 {
    margin: 0 0 0.25rem;
    color: var(--sl-navy);
}

.team-role {
    margin: 0 0 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--sl-accent);
}

.team-card p {
    margin: 0;
    font-size: 0.98rem;
    color: var(--sl-muted);
}

/* Contact */
.contact-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.contact-card {
    background: var(--sl-white);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    padding: 1.75rem;
    box-shadow: var(--sl-shadow);
}

.contact-card h3 {
    margin: 0 0 0.25rem;
    color: var(--sl-navy);
}

.contact-role {
    margin: 0 0 1.25rem;
    font-size: 0.9rem;
    color: var(--sl-muted);
}

.contact-detail {
    margin: 0 0 0.65rem;
    font-size: 0.98rem;
}

.contact-detail strong {
    display: block;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--sl-muted);
    margin-bottom: 0.15rem;
}

.contact-detail a {
    font-weight: 600;
}

/* Footer */
.site-footer {
    background: var(--sl-navy);
    color: rgba(255, 255, 255, 0.75);
    padding: 1.75rem 0;
    font-size: 0.9rem;
    text-align: center;
}

.site-footer p {
    margin: 0;
}

/* Contact form */
.contact-form {
    max-width: 40rem;
    background: var(--sl-white);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    padding: 1.75rem;
    box-shadow: var(--sl-shadow);
}

.form-field {
    margin-bottom: 1.25rem;
}

.form-field label {
    display: block;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--sl-navy);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    font: inherit;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--sl-border);
    border-radius: 8px;
    background: var(--sl-white);
    color: var(--sl-text);
}

.form-control:focus {
    outline: 2px solid var(--sl-accent);
    outline-offset: 1px;
    border-color: var(--sl-accent);
}

textarea.form-control {
    resize: vertical;
    min-height: 10rem;
}

.form-error {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.88rem;
    color: #b42318;
}

.form-alert {
    padding: 0.85rem 1rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
    font-size: 0.95rem;
}

.form-alert-success {
    background: #ecfdf3;
    border: 1px solid #abefc6;
    color: #067647;
}

.form-alert-error {
    background: #fef3f2;
    border: 1px solid #fecdca;
    color: #b42318;
}

.btn-submit {
    font: inherit;
    font-weight: 600;
    color: var(--sl-white);
    background: var(--sl-blue);
    border: none;
    border-radius: 8px;
    padding: 0.7rem 1.35rem;
    cursor: pointer;
}

.btn-submit:hover:not(:disabled) {
    background: var(--sl-accent);
}

.btn-submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

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

    .site-nav {
        width: 100%;
    }

    .site-nav a {
        flex: 1;
        text-align: center;
    }

    .brand-tagline {
        display: none;
    }
}