:root {
  /* San Luis Obispo High School Tigers palette */
  --navy: #373737;       /* school dark grey (primary) */
  --navy-dark: #242424;  /* deeper grey */
  --gold: #fccc34;       /* tiger gold */
  --black: #131313;
  --bg: #f6f8f9;
  --ink: #1d2226;
  --muted: #5a6573;
  --border: #d6dee0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
.site-header {
  background: var(--navy);
  padding: .8rem 1.5rem;
  border-bottom: 4px solid var(--gold);
}
.brand {
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: .3px;
  display: flex;
  align-items: center;
  gap: .7rem;
}
.brand-logo { display: block; height: 36px; width: auto; }
.brand-text { line-height: 1.15; }
.brand-text small { font-weight: 600; color: var(--gold); font-size: .8rem; }
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}
.hero {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.hero h1 { font-size: 2.2rem; margin: 0 0 .25rem; color: var(--navy); }
.hero h1 .years {
  font-weight: 800;
  font-size: .8em;       /* a little smaller than "Class of 2006" */
  white-space: nowrap;   /* keep the emojis next to "20 Year Reunion" */
}
.hero h1 .emoji { font-size: .5em; vertical-align: middle; }   /* half size, centered with text */
.tagline { color: var(--muted); font-size: 1.1rem; margin: 0 0 1.5rem; }
h2 { color: var(--navy); margin-top: 2rem; }
.details { display: grid; grid-template-columns: 7rem 1fr; gap: .35rem 1rem; }
.details dt { font-weight: 700; color: var(--muted); }
.details dd { margin: 0; }
.btn {
  display: inline-block;
  padding: .7rem 1.4rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--navy);
  color: var(--navy);
  background: #fff;
  cursor: pointer;
  margin: .4rem .4rem 0 0;
}
.btn-primary {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
  font-weight: 700;
}
.btn-primary:hover { background: #e9b821; border-color: #e9b821; }
.hero-logo { width: 130px; height: auto; margin: 0 auto .8rem; display: block; }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-weight: 600; margin-bottom: .3rem; }
.input {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
textarea.input { min-height: 4.5rem; resize: vertical; }
.errors { color: #b00020; margin: .35rem 0 0; padding-left: 1.1rem; }
.flash {
  background: #fff8e1;
  border: 1px solid var(--gold);
  border-radius: 6px;
  padding: .8rem 1rem;
  margin-bottom: 1.5rem;
}
.cal { margin: .2rem 0 1.4rem; }
.cal-toggle {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  cursor: pointer;
  list-style: none;            /* hide default disclosure triangle */
  padding: .3rem .6rem;
  border: 1px solid var(--navy);
  border-radius: 5px;
  background: #fff;
  color: var(--navy);
  font-weight: 600;
  font-size: .8rem;
  user-select: none;
}
.cal-toggle::-webkit-details-marker { display: none; }
.cal-icon { width: 14px; height: 14px; display: block; }
.cal[open] .cal-toggle { background: var(--navy); color: #fff; }
.cal-options { margin-top: .6rem; }
.venue-card {
  background: #000;
  border: 1px solid var(--black);
  border-radius: 10px;
  padding: 1.4rem;
  margin: 1.2rem 0 1.5rem;
  text-align: center;
}
.venue-logo { width: 100%; max-width: 360px; height: auto; display: block; margin: 0 auto 1rem; }
.message-section { text-align: center; padding: 2rem 0; }
.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
  padding: 2rem 1rem;
  border-top: 1px solid var(--border);
}
/* Honeypot: visually and from-assistive-tech hidden, still in the DOM. */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }