/* The Escalation Desk
   Full-width bands of color, taken from the logo: navy, teal, sage, coral.
   Change the colors here and they update everywhere. */
:root {
  --ink: #13294b;        /* logo navy */
  --teal: #2e6f8e;
  --sage: #6aae94;
  --coral: #f2875f;
  --muted: #4c5d74;
  --hero: #dff0e8;       /* sage tint: header + hero */
  --paper: #fcfbf8;      /* schedule band */
  --blue-soft: #e5f0f6;  /* teal tint: hosts band */
  --coral-soft: #fde8de; /* coral tint: submit band */
  --line: rgba(19, 41, 75, .15);
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --sans: "Space Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 18px/1.65 var(--sans); overflow-wrap: break-word; }
::selection { background: var(--coral-soft); }
.w { max-width: 920px; margin: 0 auto; padding: 0 1.25rem; }
img { max-width: 100%; display: block; }

a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--coral); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--teal); }

/* Header sits on the hero band */
.site-header { background: var(--hero); }
.site-header .w { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; align-items: center; justify-content: space-between; padding-top: 1.25rem; }
.wordmark { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--display); font-weight: 700; font-size: 1.15rem; text-decoration: none; }
.wordmark img { height: 34px; width: auto; }
.site-nav { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; font-size: .95rem; }
.site-nav a { text-decoration: none; }
.site-nav a:hover { text-decoration: underline; }

/* Sections: one color band each */
section { padding: 4.5rem 0; }
.hero { background: var(--hero); padding: 4rem 0 5rem; }
#schedule { background: var(--paper); }
#about { background: var(--blue-soft); }
#submit { background: var(--coral-soft); }
section p, section ul { max-width: 640px; }

h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.1; }
h1 { font-size: clamp(2.4rem, 7vw, 4rem); letter-spacing: -.025em; margin: 0 0 2rem; max-width: 16ch; }
h2 { font-size: clamp(1.9rem, 5vw, 2.5rem); letter-spacing: -.02em; margin: 0 0 1rem; }
h3 { font-size: 1.25rem; margin: 0; }
p { margin: 1rem 0; }
li { margin: .35rem 0; }
.anchor { color: var(--muted); text-decoration: none; font-weight: 400; opacity: 0; transition: opacity .15s; }
h2:hover .anchor, .anchor:focus { opacity: 1; }

/* Call to action */
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin: 2.25rem 0 0; }
.button { display: inline-block; text-decoration: none; font-weight: 700; color: var(--paper); background: var(--ink);
          border-radius: 6px; padding: .75rem 1.3rem; }
.button:hover { color: var(--paper); background: var(--teal); }

/* Schedule: a simple list with rules between sessions */
.sessions { list-style: none; padding: 0; margin: 2rem 0 0; max-width: 640px; border-top: 1px solid var(--line); }
.session { margin: 0; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.session p { margin: .2rem 0; }
.session .note, .session.tba { color: var(--muted); }
.session.past { opacity: .5; }

/* Hosts: 2x2 grid */
.hosts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3rem 3.5rem; margin: 2.5rem 0 0; }
.host img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin-bottom: 1.1rem; }
.host h3 { margin-bottom: .5rem; }
.host p { margin: .6rem 0; }
.contact { display: flex; flex-wrap: wrap; gap: .25rem 1.1rem; font-size: .95rem; }
@media (max-width: 640px) {
  .hosts { grid-template-columns: 1fr; }
}

/* Submit */
#submit ul { padding-left: 1.2rem; }
#submit li::marker { color: var(--coral); }

/* Footer */
.site-footer { background: var(--ink); color: var(--hero); padding: 1.5rem 0; font-size: .9rem; }
.site-footer p { margin: 0; }