/* ===== HUB Brand Colors ===== */
:root {
    --hub-blue: #003087;
    --hub-blue-light: #0072CE;
    --hub-gold: #C5A900;
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f5;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
}

img {
    max-width: 100%;
}

a {
    color: var(--hub-blue-light);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ===== Container ===== */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    color: var(--hub-blue);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 2.75rem;
    font-weight: 800;
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 32px;
}

h3 {
    font-size: 1.125rem;
    color: var(--hub-blue-light);
    margin-bottom: 16px;
}

h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

strong {
    color: var(--hub-blue-light);
    font-weight: 600;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-nav {
    background: var(--hub-gold);
    color: var(--white);
}

.btn-nav:hover {
    background: #b39800;
    text-decoration: none;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.9375rem;
}

.nav-links a:hover {
    color: var(--hub-blue);
    text-decoration: none;
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, var(--hub-blue) 0%, #001a4d 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="80" cy="50" r="60" fill="rgba(255,255,255,0.03)"/></svg>') no-repeat center;
    background-size: cover;
}

.hero-tag {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.hero h1 {
    color: var(--white);
    max-width: 600px;
}

/* ===== Stats ===== */
.stats {
    background: var(--hub-blue);
    padding: 40px 0;
    border-bottom: 4px solid var(--hub-gold);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat {
    padding: 16px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 8px;
}

/* ===== Pillars (Four Columns) ===== */
.pillars {
    padding: 80px 0;
}

.pillars h2 {
    text-align: center;
    margin-bottom: 48px;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.pillar {
    padding: 24px;
    border-top: 3px solid var(--hub-gold);
    background: var(--gray-50);
}

.pillar-icon {
    color: var(--hub-gold);
    margin-bottom: 16px;
}

.pillar h3 {
    font-size: 1rem;
    margin-bottom: 16px;
}

.pillar ul {
    list-style: none;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.pillar li {
    padding: 8px 0;
    padding-left: 16px;
    position: relative;
    border-bottom: 1px solid var(--gray-100);
}

.pillar li:last-child {
    border-bottom: none;
}

.pillar li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--hub-blue-light);
}

/* ===== Services ===== */
.services {
    padding: 80px 0;
    background: var(--white);
    border-top: 1px solid var(--gray-100);
}

.services h2 {
    color: var(--hub-blue-light);
}

.section-intro {
    max-width: 700px;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-box {
    background: var(--gray-50);
    padding: 32px;
    border-left: 3px solid var(--hub-gold);
}

.service-box h4 {
    color: var(--hub-blue);
}

.service-box p {
    font-size: 0.9375rem;
    color: var(--gray-600);
}

/* ===== Team ===== */
.team {
    padding: 80px 0;
    background: var(--gray-50);
}

.team h2 {
    color: var(--hub-blue-light);
    text-align: center;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    max-width: 900px;
    margin: 0 auto;
}

.team-member {
    text-align: center;
}

.member-photo {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    margin: 0 auto 24px;
    overflow: hidden;
}

.member-photo.placeholder {
    background: var(--hub-blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
}

.team-member h3 {
    color: var(--hub-blue-light);
    font-size: 1.25rem;
    margin-bottom: 4px;
}

.member-title {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: 16px;
}

.member-bio {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 16px;
}

.member-contact {
    font-size: 0.875rem;
}

.member-contact a {
    display: block;
    margin-bottom: 4px;
}

.member-contact span {
    color: var(--gray-600);
}

/* ===== Contact ===== */
.contact {
    padding: 80px 0;
    background: var(--hub-blue);
}

.contact-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.contact h2 {
    color: var(--white);
}

.contact > .container > .contact-content > p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.contact-info {
    background: var(--white);
    padding: 32px;
    border-radius: 8px;
    text-align: left;
}

.contact-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item strong {
    display: block;
    color: var(--hub-blue);
    font-size: 1.125rem;
}

.contact-item span {
    display: block;
    color: var(--gray-600);
    font-size: 0.9375rem;
}

.contact-item a {
    font-weight: 500;
}

/* ===== Footer ===== */
.footer {
    padding: 32px 0;
    background: var(--white);
    border-top: 1px solid var(--gray-100);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .pillars-grid,
    .services-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat {
        padding: 12px 0;
    }
}