/* ── Global ─────────────────────────────────────────────── */
:root {
    --sc-navy:   #0d1f3c;
    --sc-blue:   #1565c0;
    --sc-accent: #1976d2;
}

html, body {
    min-height: 100vh;
}

body {
    display: flex;
    flex-direction: column;
    background: #f4f6f9;
    color: #1a1a2e;
    font-size: .9375rem;
}

/* Volleyball net background — pseudo-element keeps opacity independent of content */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image: url('/images/volleyball-net.jpg');
    background-size: cover;
    background-position: center top;
    opacity: 0.12;
    pointer-events: none;
}

main {
    flex: 1;
}

/* ── Navbar ─────────────────────────────────────────────── */
.sc-navbar {
    background: var(--sc-navy);
    border-bottom: 3px solid var(--sc-blue);
    padding-top: .35rem;
    padding-bottom: .35rem;
    box-shadow: 0 2px 8px rgba(0,0,0,.35);
}

.sc-navbar .navbar-brand {
    padding: 0;
    line-height: 1;
}

.sc-navbar .navbar-brand img {
    height: 40px;
    width: auto;
}

.sc-navbar .navbar-nav .nav-link {
    color: rgba(255,255,255,.82);
    font-weight: 500;
    font-size: .875rem;
    letter-spacing: .03em;
    padding: .45rem .85rem;
    border-radius: .25rem;
    transition: color .15s ease, background .15s ease;
}

.sc-navbar .navbar-nav .nav-link:hover,
.sc-navbar .navbar-nav .nav-link.active {
    color: #fff;
    background: rgba(255,255,255,.12);
}

.sc-navbar .nav-link.dropdown-toggle::after {
    vertical-align: .1em;
}

.sc-navbar .dropdown-menu {
    border: none;
    box-shadow: 0 4px 16px rgba(0,0,0,.18);
    border-radius: .375rem;
    font-size: .875rem;
}

.sc-navbar .navbar-toggler {
    border-color: rgba(255,255,255,.3);
    padding: .3rem .55rem;
}

.sc-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Cards ──────────────────────────────────────────────── */
.card {
    border: 1px solid #dde3ed;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
    border-radius: .5rem;
}

.card-header {
    background: #eef1f7;
    border-bottom: 1px solid #dde3ed;
    font-size: .875rem;
    font-weight: 600;
    color: #2c3e6b;
    border-radius: .5rem .5rem 0 0 !important;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn-primary {
    background-color: var(--sc-blue);
    border-color: var(--sc-blue);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--sc-accent);
    border-color: var(--sc-accent);
}

/* ── Input groups ───────────────────────────────────────── */
.input-group-text {
    background: #eef1f7;
    border-color: #ced4da;
    color: #495057;
    font-size: .8125rem;
    font-weight: 500;
}

/* ── Page headings ──────────────────────────────────────── */
h1.h3, h1.h4, h2.h3, h2.h4 {
    color: var(--sc-navy);
    font-weight: 700;
    letter-spacing: -.01em;
}

/* ── Footer ─────────────────────────────────────────────── */
.sc-footer {
    background: var(--sc-navy);
    color: rgba(255,255,255,.55);
    font-size: .8rem;
    padding: .75rem 1rem;
    text-align: center;
    margin-top: auto;
    border-top: 3px solid var(--sc-blue);
}

.sc-footer a {
    color: rgba(255,255,255,.7);
    text-decoration: none;
}

/* ── Roster table ───────────────────────────────────────── */
.roster-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ── Validation summary ─────────────────────────────────── */
.validation-summary-valid { display: none !important; }

/* ── Touch targets on small screens ────────────────────── */
@media (max-width: 576px) {
    .form-select, .form-control {
        font-size: 1rem;
        min-height: 44px;
    }
    .btn {
        min-height: 44px;
    }
}