/* ================================
   GLOBAL
==================================*/
body {
    margin: 0;
    font-family: "Inter", Arial, sans-serif;
    background: #f5f7f8;
    color: #173a3a;
}

/* ================================
   HEADER + NAVIGATION
==================================*/
header {
    background: white;
    box-shadow: 0 4px 22px rgba(2, 32, 28, 0.06);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1280px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.logo-large {
    height: 160px;
    width: auto;
    object-fit: contain;
}

nav a {
    margin: 0 14px;
    text-decoration: none;
    color: #0b4f4b;
    font-weight: 700;
    font-size: 18px;
}

nav a:hover {
    color: #008078;
}

/* ================================
   HERO SECTION
==================================*/
.hero {
    padding: 120px 20px;
    text-align: center;
    background: linear-gradient(180deg, #0b4f4b, #006a66);
    color: white;
}

.hero h1 {
    font-size: 52px;
    margin-bottom: 18px;
}

.hero p {
    font-size: 22px;
    margin-bottom: 24px;
}

.cta {
    display: inline-block;
    padding: 14px 28px;
    background: #ffffff;
    color: #006a66;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
}

/* ================================
   GRID CARDS
==================================*/
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    padding: 60px 24px;
    max-width: 1280px;
    margin: auto;
}

.card {
    background: white;
    padding: 28px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(2, 32, 28, 0.08);
    transition: transform 0.25s ease;
}

.card:hover {
    transform: translateY(-8px);
}

/* ================================
   FOOTER
==================================*/
footer {
    margin-top: 40px;
    padding: 30px;
    background: white;
    text-align: center;
    color: #275a58;
    font-size: 14px;
}