/* ============================================================
   St Ambrose 80th Ball — design tokens
   Lifted from the flyer: deep navy + gold, classical serif headings.
   ============================================================ */
:root {
    --navy-900: #0a1840;
    --navy-800: #102052;
    --navy-700: #182a64;
    --navy-50:  #eef1fb;
    --gold-500: #c9a24a;
    --gold-400: #d8b766;
    --gold-300: #e6cf91;
    --ink:      #11183a;
    --paper:    #fbfaf6;
    --line:     rgba(201, 162, 74, 0.35);
    --shadow:   0 20px 60px -25px rgba(10, 24, 64, 0.45);
    --serif:    "Cormorant Garamond", "EB Garamond", Georgia, serif;
    --sans:     "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .display-1, .display-2, .display-3, .display-4 {
    font-family: var(--serif);
    font-weight: 600;
    letter-spacing: 0.01em;
}

a { color: var(--navy-800); text-decoration-color: var(--gold-400); text-underline-offset: 3px; }
a:hover { color: var(--navy-900); }

/* --- Navigation ------------------------------------------------ */
.site-nav {
    background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--line);
}
.site-nav .navbar-brand { color: #fff; text-decoration: none; }
.site-nav .brand-logo {
    height: 52px;
    width: auto;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.4));
}
.site-nav .brand-text { color: #fff; line-height: 1.1; font-weight: 500; }
.site-nav .brand-text small { color: var(--gold-300); font-weight: 400; letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.7rem; }

/* --- Buttons --------------------------------------------------- */
.btn-gold {
    background: var(--gold-400);
    color: var(--navy-900);
    border: 1px solid var(--gold-500);
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.55rem 1.2rem;
    border-radius: 2px;
    transition: transform 0.15s ease, background 0.15s ease;
}
.btn-gold:hover { background: var(--gold-300); color: var(--navy-900); transform: translateY(-1px); }
.btn-navy {
    background: var(--navy-800);
    color: #fff;
    border: 1px solid var(--navy-900);
    font-weight: 500;
    letter-spacing: 0.03em;
    padding: 0.55rem 1.2rem;
    border-radius: 2px;
}
.btn-navy:hover { background: var(--navy-900); color: #fff; }
.btn-outline-navy {
    background: transparent;
    color: var(--navy-800);
    border: 1px solid var(--navy-800);
    font-weight: 500;
    padding: 0.55rem 1.2rem;
    border-radius: 2px;
}
.btn-outline-navy:hover { background: var(--navy-800); color: #fff; }

/* --- Hero ------------------------------------------------------ */
.hero {
    background: radial-gradient(ellipse at 70% 30%, var(--navy-700) 0%, var(--navy-900) 70%);
    color: #fff;
    padding: 5rem 0 7rem;
    position: relative;
    overflow: hidden;
}
.hero::before, .hero::after {
    content: "";
    position: absolute;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(216, 183, 102, 0.6) 1px, transparent 1px);
    background-size: 14px 14px;
    opacity: 0.18;
}
.hero::before { inset: 0 0 auto 0; height: 200px; mask-image: linear-gradient(180deg, #000, transparent); }
.hero::after { inset: auto 0 0 0; height: 200px; mask-image: linear-gradient(0deg, #000, transparent); }
.hero .eyebrow {
    color: var(--gold-300);
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-size: 0.78rem;
    margin-bottom: 1rem;
}
.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1;
    margin-bottom: 1.5rem;
}
.hero h1 .accent { color: var(--gold-400); font-style: italic; }
.hero .lead { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 580px; }
.hero .meta {
    display: inline-flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 1rem 1.5rem;
    border: 1px solid var(--line);
    background: rgba(0,0,0,0.2);
    border-radius: 2px;
}
.hero .meta strong { color: var(--gold-300); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.7rem; display: block; }
.hero .meta span { font-family: var(--serif); font-size: 1.1rem; }

/* --- Sections -------------------------------------------------- */
.section { padding: 5rem 0; }
.section-tight { padding: 3rem 0; }
.section h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    margin-bottom: 1rem;
}
.section .eyebrow {
    color: var(--gold-500);
    text-transform: uppercase;
    letter-spacing: 0.25em;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

/* --- Feature row ----------------------------------------------- */
.feature {
    padding: 1.5rem;
    border: 1px solid var(--line);
    border-radius: 2px;
    background: #fff;
    height: 100%;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.feature .icon {
    width: 40px;
    height: 40px;
    color: var(--gold-500);
    margin-bottom: 1rem;
}
.feature h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.feature p { color: #4a557a; margin: 0; font-size: 0.95rem; }

/* --- Cards ----------------------------------------------------- */
.card-elegant {
    border: 1px solid var(--line);
    border-radius: 2px;
    background: #fff;
    box-shadow: var(--shadow);
}
.card-elegant .card-header {
    background: linear-gradient(180deg, var(--navy-900), var(--navy-800));
    color: #fff;
    border-bottom: 1px solid var(--gold-500);
    padding: 1.25rem 1.5rem;
}
.card-elegant .card-header h2,
.card-elegant .card-header h3 { color: #fff; margin: 0; }
.card-elegant .card-body { padding: 1.75rem; }

/* --- Forms ----------------------------------------------------- */
.form-label { font-weight: 600; font-size: 0.9rem; color: var(--navy-800); }
.form-control, .form-select {
    border-radius: 2px;
    border-color: rgba(10, 24, 64, 0.15);
    padding: 0.6rem 0.85rem;
}
.form-control:focus, .form-select:focus {
    border-color: var(--gold-500);
    box-shadow: 0 0 0 3px rgba(201, 162, 74, 0.18);
}
.form-text { color: #6b7494; }

/* --- Pricing tiles --------------------------------------------- */
.tier {
    display: block;
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
    padding: 2rem 1.75rem;
    border-radius: 3px;
    height: 100%;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
}
/* Hidden radio inside .tier — kept in document flow so browser-native validation
   tooltips can position themselves at the tier card. */
.tier-radio {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
    margin: 0;
}
/* Highlight tiers whose underlying radio failed validation, after the form has
   been submit-attempted at least once. */
form.was-validated .tier:has(input[type="radio"]:invalid) {
    border-color: #c0392b;
    box-shadow: 0 0 0 2px rgba(192, 57, 43, 0.18);
}
.tier:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.tier.is-selected {
    border-color: var(--gold-500);
    box-shadow: 0 0 0 3px rgba(201, 162, 74, 0.25), var(--shadow);
}
.tier .tier-name { font-family: var(--serif); font-size: 1.5rem; color: var(--navy-900); }
.tier .tier-price { font-size: 2.5rem; font-weight: 600; color: var(--navy-900); margin: 0.5rem 0; font-family: var(--serif); }
.tier .tier-price small { font-size: 0.9rem; color: #6b7494; font-weight: 400; }
.tier .tier-meta { color: #6b7494; font-size: 0.9rem; }
.tier .tier-availability {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--navy-50);
    color: var(--navy-800);
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 2px;
    letter-spacing: 0.04em;
}
.tier.sold-out { opacity: 0.55; cursor: not-allowed; }
.tier.sold-out .tier-availability { background: #fce4e4; color: #8a1f1f; }

/* --- Footer ---------------------------------------------------- */
.site-footer {
    background: var(--navy-900);
    color: rgba(255,255,255,0.75);
    padding: 2.5rem 0;
    margin-top: 4rem;
    border-top: 4px solid var(--gold-500);
    text-align: center;
}
.site-footer p { font-family: var(--serif); }

/* --- Utilities ------------------------------------------------- */
.divider-flourish {
    text-align: center;
    margin: 2.5rem 0;
    color: var(--gold-500);
    font-size: 1.25rem;
    letter-spacing: 1.5rem;
}
.alert-inline {
    border-radius: 2px;
    border-left: 4px solid var(--gold-500);
    background: #fff8e7;
    padding: 0.85rem 1rem;
    color: var(--ink);
    margin-bottom: 1rem;
}
.badge-soft {
    background: var(--navy-50);
    color: var(--navy-800);
    font-weight: 500;
    padding: 0.35rem 0.6rem;
    letter-spacing: 0.04em;
}

/* --- Admin minimal ---------------------------------------------- */
.admin-shell { padding: 2rem 0; }
.admin-shell h1 { font-size: 1.75rem; margin-bottom: 1.5rem; }
.admin-shell .table { background: #fff; }