/* BSAC NZ — coastal theme v2
   Palette: deep ocean navy, lagoon teal, sea-glass, sand, coral accent */
:root {
    --deep: #0a2540;        /* deep ocean navy */
    --lagoon: #1d7a8c;      /* lagoon teal */
    --sea-glass: #e8f1f4;   /* pale sea-glass background */
    --sand: #f7f3ea;        /* warm sand */
    --coral: #e87461;       /* coral accent */
    --text: #1f2d36;
    --muted: #5c7281;
    --white: #ffffff;
    --shadow: 0 8px 30px rgba(10, 37, 64, 0.12);
    --radius: 14px;
}

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

body {
    font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.65;
    font-size: 16.5px;
}

/* ===== Header ===== */
.site-header {
    background: linear-gradient(135deg, var(--deep) 0%, #0e3555 100%);
    color: #fff;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
.header-inner {
    max-width: 1150px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.1rem 2rem;
    flex-wrap: wrap;
    gap: 0.8rem;
}
.brand { display: flex; flex-direction: column; }
.brand-name {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: 0.4px;
    color: #fff;
}
.brand-sub {
    font-size: 0.8rem;
    color: #9fc3d9;
    margin-top: 1px;
    letter-spacing: 0.3px;
}
.main-nav { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.nav-link {
    color: #d7e9f3;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.45rem 0.8rem;
    border-radius: 8px;
    transition: all 0.2s;
}
.nav-link:hover {
    background: rgba(255,255,255,0.12);
    color: #fff;
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(160deg, var(--deep) 0%, #123c5e 55%, var(--lagoon) 130%);
    color: #fff;
    padding: 3.5rem 2rem 3rem;
    text-align: center;
}
.hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    max-width: 820px;
    margin: 0 auto 1.2rem;
    line-height: 1.2;
}
.hero-img-wrap {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 3px solid rgba(255,255,255,0.15);
}
.hero-img {
    display: block;
    width: 100%;
    height: auto;              /* NO fixed height — never crops */
    object-fit: contain;
}
.hero-cta {
    margin-top: 1.8rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    font-size: 1rem;
}
.btn-primary { background: var(--coral); color: #fff; }
.btn-primary:hover { background: #d55a48; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }

/* ===== Content ===== */
.content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2.8rem 2rem 4rem;
}
.content h1 {
    color: var(--deep);
    font-size: 2rem;
    margin-bottom: 1.3rem;
    padding-bottom: 0.6rem;
    border-bottom: 4px solid var(--coral);
    display: inline-block;
    font-weight: 800;
}
.content h2 {
    color: var(--lagoon);
    font-size: 1.5rem;
    margin: 2rem 0 0.8rem;
    font-weight: 700;
}
.content h3 {
    color: var(--deep);
    font-size: 1.15rem;
    margin: 1.4rem 0 0.5rem;
}
.content p { margin: 0.7rem 0; }
.content ul { margin: 0.7rem 0 0.7rem 1.5rem; }
.content li { margin: 0.35rem 0; }
.content a { color: var(--lagoon); font-weight: 500; }
.content a:hover { color: var(--coral); }

/* Callout cards */
.callout {
    background: var(--sea-glass);
    border-left: 5px solid var(--lagoon);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 1.2rem 1.5rem;
    margin: 1.5rem 0;
}
.callout a { font-weight: 700; }

/* Cards (Diving / Training) */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.4rem;
    margin: 1.6rem 0;
}
.card {
    background: var(--white);
    border: 1px solid #e2ebf0;
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(10,37,64,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card h3 { margin-top: 0; color: var(--deep); }
.card .card-icon { font-size: 1.8rem; margin-bottom: 0.6rem; }

/* ===== Tables ===== */
.content table {
    border-collapse: collapse;
    margin: 1.2rem 0;
    width: 100%;
    max-width: 640px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(10,37,64,0.06);
}
.content th, .content td {
    border: 1px solid #e2ebf0;
    padding: 0.65rem 1rem;
    text-align: left;
}
.content th {
    background: var(--deep);
    color: #fff;
    font-weight: 600;
}
.content tr:nth-child(even) { background: var(--sea-glass); }

/* ===== Gallery ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    margin-top: 1.6rem;
}
.gallery-grid a {
    display: block;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(10,37,64,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    background: var(--sea-glass);
}
.gallery-grid a:hover { transform: scale(1.02); box-shadow: var(--shadow); }
.gallery-grid img {
    display: block;
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: center 30%;  /* bias to upper third — keeps heads in view */
}
.gallery-note {
    color: var(--muted);
    font-style: italic;
    margin-top: 1.2rem;
    font-size: 0.95rem;
}

/* ===== Calendar ===== */
.calendar-embed {
    margin: 1.5rem 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(10,37,64,0.12);
    border: 1px solid #e2ebf0;
}
.calendar-embed iframe { display: block; }

/* ===== Registration form ===== */
.reg-form {
    background: var(--sea-glass);
    border-radius: var(--radius);
    padding: 1.8rem;
    margin: 1.5rem 0;
    max-width: 620px;
    box-shadow: 0 2px 12px rgba(10,37,64,0.08);
}
.reg-form label { display: block; margin: 0.9rem 0; font-weight: 600; color: var(--deep); }
.reg-form input, .reg-form select {
    width: 100%;
    padding: 0.65rem;
    margin-top: 0.35rem;
    border: 1px solid #c9d8e2;
    border-radius: 8px;
    font-size: 0.98rem;
    background: #fff;
}
.reg-form input:focus { outline: 2px solid var(--lagoon); border-color: transparent; }
.reg-form fieldset {
    border: 1px solid #c9d8e2;
    border-radius: 8px;
    padding: 0.9rem 1.1rem;
    margin: 1.1rem 0;
}
.reg-form legend { font-weight: 700; color: var(--deep); padding: 0 0.4rem; }
.reg-form button {
    background: var(--coral);
    color: #fff;
    border: none;
    padding: 0.8rem 2rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    margin-top: 0.7rem;
    transition: background 0.2s;
}
.reg-form button:hover { background: #d55a48; }

/* ===== Footer ===== */
.site-footer {
    background: var(--deep);
    color: #9fc3d9;
    text-align: center;
    padding: 2rem 2rem;
    font-size: 0.95rem;
}
.site-footer a { color: #d7e9f3; }
.footer-small { font-size: 0.82rem; color: #6f8ea8; margin-top: 0.4rem; }

/* ===== Responsive ===== */
@media (max-width: 720px) {
    .header-inner { flex-direction: column; align-items: flex-start; }
    .content { padding: 1.6rem 1.2rem 2.5rem; }
    .hero h1 { font-size: 1.7rem; }
    .hero { padding: 2.4rem 1.2rem 2rem; }
}