/* ============================================================================
 * SLN Clinical Ladder — styles
 * Aesthetic: editorial "wall of recognition". Warm paper, CNA crimson,
 * Fraunces display serif + Libre Franklin institutional grotesque.
 * ========================================================================== */

:root {
  /* CNA-inspired crimson family */
  --crimson:        #A4123F;
  --crimson-bright: #C8102E;
  --crimson-deep:   #6E0B2E;
  --crimson-ink:    #4A0820;

  /* Soft rose — same family, used for SN III (tonal, not inverse) */
  --rose:      #E7B9C6; /* SN III fill */
  --rose-bar:  #DDA2B4; /* SN III accent bar */
  --rose-soft: #F2D6DF; /* SN III avatar gradient (light) */
  --rose-mid:  #DCA6B7; /* SN III avatar gradient (deep) */

  /* Warm paper neutrals */
  --paper:     #FBF6F1;
  --paper-2:   #F4EBE2;
  --card:      #FFFFFF;
  --ink:       #1E1418;
  --ink-soft:  #5C4E52;
  --line:      #E7D8CC;
  --line-soft: #EFE4DA;

  --gold:      #B98A2E; /* subtle warm accent for IV laurels */

  --shadow-sm: 0 1px 2px rgba(74, 8, 32, .06), 0 2px 8px rgba(74, 8, 32, .05);
  --shadow-md: 0 10px 30px -12px rgba(74, 8, 32, .28);

  --maxw: 1180px;
  --radius: 14px;

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Libre Franklin", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  /* soft layered atmosphere */
  background-image:
    radial-gradient(1200px 600px at 82% -8%, rgba(164, 18, 63, .07), transparent 60%),
    radial-gradient(900px 520px at -10% 8%, rgba(110, 11, 46, .05), transparent 55%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--crimson); color: #fff; padding: .6rem 1rem; border-radius: 0 0 8px 0;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--crimson-bright); outline-offset: 2px; border-radius: 4px; }

/* ----------------------------------------------------------------- Masthead */
.masthead {
  background: linear-gradient(180deg, var(--crimson-deep), var(--crimson));
  color: #fff;
  border-bottom: 3px solid var(--crimson-ink);
}
.masthead__inner {
  max-width: var(--maxw); margin: 0 auto; padding: .85rem clamp(1rem, 4vw, 2.5rem);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: .8rem; }
.brand__mark { color: var(--crimson-ink); display: inline-flex; filter: drop-shadow(0 1px 1px rgba(0,0,0,.25)); }
.brand__mark svg { display: block; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__org { font-weight: 800; letter-spacing: .2px; font-size: 1.02rem; }
.brand__sub { font-size: .74rem; text-transform: uppercase; letter-spacing: .18em; color: rgba(255,255,255,.74); }

.masthead__meta { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.lvl-key { display: inline-flex; align-items: center; gap: .45rem; font-size: .78rem; font-weight: 600; color: rgba(255,255,255,.9); }
.lvl-dot { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.lvl-dot--iv  { background: #fff; }
.lvl-dot--iii { background: var(--rose); }

/* --------------------------------------------------------------------- Hero */
.hero { position: relative; overflow: hidden; }
.hero__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2.6rem, 6vw, 4.6rem) clamp(1rem, 4vw, 2.5rem) clamp(1.6rem, 3vw, 2.2rem);
}
.hero__eyebrow {
  margin: 0 0 .9rem; font-size: .76rem; font-weight: 700; letter-spacing: .26em;
  text-transform: uppercase; color: var(--crimson);
  display: inline-flex; align-items: center; gap: .7rem;
}
.hero__eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--crimson); display: inline-block; }
.hero__title {
  font-family: var(--serif); font-weight: 600; font-optical-sizing: auto;
  font-size: clamp(2.3rem, 6vw, 4.1rem); line-height: 1.02; letter-spacing: -.015em;
  margin: 0 0 1rem; max-width: 16ch; color: var(--ink);
}
.hero__title em { font-style: italic; color: var(--crimson); }
.hero__lede {
  font-size: clamp(1.02rem, 1.6vw, 1.22rem); color: var(--ink-soft);
  max-width: 60ch; margin: 0 0 2.2rem;
}

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(.6rem, 2vw, 1.4rem); margin: 0;
  border-top: 1px solid var(--line); padding-top: 1.6rem; max-width: 900px;
}
.stat dt { font-size: .73rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-soft); font-weight: 600; }
.stat dd {
  margin: .25rem 0 0; font-family: var(--serif); font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 2.7rem); line-height: 1; color: var(--crimson);
  font-variant-numeric: tabular-nums;
}
.stat dd.stat__mentor { color: #A8791A; } /* gold, echoes the Mentor pill */
.hero__rule { height: 0; }

/* ------------------------------------------------------------------ Toolbar */
.toolbar {
  position: sticky; top: 0; z-index: 30;
  background: rgba(251, 246, 241, .88);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.toolbar__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: .7rem clamp(1rem, 4vw, 2.5rem);
  display: flex; align-items: center; gap: .8rem; flex-wrap: wrap;
}
.search { position: relative; flex: 1 1 260px; min-width: 0; }
.search__icon {
  position: absolute; left: .8rem; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; color: var(--ink-soft); pointer-events: none;
}
.search input {
  width: 100%; font: inherit; font-size: .95rem; color: var(--ink);
  padding: .62rem .9rem .62rem 2.5rem;
  border: 1px solid var(--line); border-radius: 999px; background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.search input::placeholder { color: #a99a8f; }
.search input:focus { outline: none; border-color: var(--crimson); box-shadow: 0 0 0 3px rgba(164,18,63,.14); }

.filters { display: inline-flex; gap: .35rem; background: var(--paper-2); padding: .25rem; border-radius: 999px; border: 1px solid var(--line-soft); }
.chip {
  font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer;
  border: 0; background: transparent; color: var(--ink-soft);
  padding: .4rem .85rem; border-radius: 999px; transition: background .15s, color .15s;
}
.chip:hover { color: var(--crimson); }
.chip.is-active { background: var(--crimson); color: #fff; box-shadow: var(--shadow-sm); }

/* Mentors toggle — standalone, gold, ANDs with the level filter */
.chip--mentor {
  display: inline-flex; align-items: center; gap: .35rem;
  border: 1px solid var(--line); background: #fff; color: #8a6311;
  margin-left: .1rem;
}
.chip--mentor svg { opacity: .85; }
.chip--mentor:hover { color: #6e4d08; border-color: #e3c889; }
.chip--mentor.is-active {
  background: linear-gradient(135deg, #F2C94C, #D29318);
  color: #4a3206; border-color: transparent;
  box-shadow: 0 1px 2px rgba(120, 84, 8, .25), inset 0 1px 0 rgba(255,255,255,.35);
}

.sortwrap { display: inline-flex; align-items: center; gap: .45rem; }
.sortwrap__label { font-size: .78rem; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .08em; }
.sortwrap select {
  font: inherit; font-size: .88rem; font-weight: 600; color: var(--ink);
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: .45rem 2rem .45rem .85rem; cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A4123F' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .65rem center; background-size: 14px;
}
.sortwrap select:focus { outline: none; border-color: var(--crimson); box-shadow: 0 0 0 3px rgba(164,18,63,.14); }

/* ------------------------------------------------------------------- Roster */
.roster {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(1.8rem, 4vw, 3rem) clamp(1rem, 4vw, 2.5rem) 4rem;
}
.status, .noresults { text-align: center; color: var(--ink-soft); font-size: 1rem; padding: 3rem 1rem; }
.noresults { font-family: var(--serif); font-size: 1.3rem; }
.status--error { color: var(--crimson); font-weight: 600; }

.units { display: flex; flex-direction: column; gap: clamp(2.4rem, 5vw, 3.6rem); }

.unit { scroll-margin-top: 84px; }
.unit__head {
  display: flex; align-items: baseline; gap: .9rem; flex-wrap: wrap;
  padding-bottom: .9rem; margin-bottom: 1.4rem;
  border-bottom: 2px solid var(--ink);
  position: relative;
}
.unit__head::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 64px; height: 2px; background: var(--crimson);
}
.unit__name {
  font-family: var(--serif); font-weight: 600; letter-spacing: -.01em;
  font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0; color: var(--ink);
}
.unit__count {
  font-size: .78rem; font-weight: 700; color: var(--crimson);
  text-transform: uppercase; letter-spacing: .1em;
  margin-left: auto; white-space: nowrap;
}

.cards {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
}

/* --------------------------------------------------------------------- Card */
.card {
  position: relative; display: flex; align-items: center; gap: .9rem;
  background: var(--card); border: 1px solid var(--line-soft);
  border-radius: var(--radius); padding: 1rem 1.05rem;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--crimson); opacity: .9;
}
.card--iii::before { background: var(--rose-bar); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line); }

.avatar {
  flex: 0 0 auto; width: 50px; height: 50px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700; font-size: 1.02rem; letter-spacing: .02em;
  color: #fff; background: linear-gradient(145deg, var(--crimson), var(--crimson-deep));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.25);
}
.card--iii .avatar { color: var(--crimson-deep); background: linear-gradient(145deg, var(--rose-soft), var(--rose-mid)); }

.card__body { min-width: 0; flex: 1; }
.card__name {
  font-family: var(--serif); font-weight: 600; font-size: 1.08rem; line-height: 1.18;
  color: var(--ink); margin: 0 0 .12rem; letter-spacing: -.005em;
}
.card__role { font-size: .82rem; color: var(--ink-soft); margin: 0; }
.card__unit { font-size: .72rem; color: var(--crimson); font-weight: 600; letter-spacing: .01em; margin: .15rem 0 0; }

.card__tags { display: flex; align-items: center; gap: .35rem; flex-wrap: wrap; margin-top: .5rem; }
.badge {
  font-size: .7rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  padding: .2rem .5rem; border-radius: 6px; white-space: nowrap;
}
.badge--iv  { background: var(--crimson); color: #fff; }
.badge--iii { background: var(--rose); color: var(--crimson-deep); }
.tag {
  font-size: .66rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  padding: .2rem .45rem; border-radius: 6px; background: var(--paper-2); color: var(--ink-soft);
}
.tag--sh    { background: #efe2ea; color: var(--crimson-deep); }
.tag--float { background: #e8ecef; color: #38606e; }
.tag--charge{ background: #f4ead2; color: #7a5a14; }
.tag--mentor {
  background: linear-gradient(135deg, #F4CE57, #D29318);
  color: #4a3206; font-weight: 800;
  box-shadow: inset 0 0 0 1px rgba(120, 84, 8, .18), 0 1px 1px rgba(120, 84, 8, .18);
  display: inline-flex; align-items: center; gap: .25rem;
}
.tag--mentor svg { width: 10px; height: 10px; }

/* Staggered entrance */
@media (prefers-reduced-motion: no-preference) {
  .card { animation: rise .5s cubic-bezier(.2,.7,.2,1) both; }
  @keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
}

/* -------------------------------------------------------------------- Footer */
.footer {
  background: linear-gradient(180deg, var(--crimson), var(--crimson-deep));
  color: #fff; margin-top: 2rem;
}
.footer__inner { max-width: var(--maxw); margin: 0 auto; padding: 2.4rem clamp(1rem, 4vw, 2.5rem); }
.footer__title { font-family: var(--serif); font-weight: 600; font-size: 1.35rem; margin: 0 0 .35rem; }
.footer__note { margin: 0 0 .6rem; color: rgba(255,255,255,.86); max-width: 60ch; }
.footer__fine { margin: 0; font-size: .8rem; color: rgba(255,255,255,.6); }

.footer__contact { margin-top: 1.8rem; padding-top: 1.6rem; border-top: 1px solid rgba(255,255,255,.18); }
.footer__eyebrow {
  margin: 0 0 .5rem; font-size: .74rem; font-weight: 700; letter-spacing: .2em;
  text-transform: uppercase; color: rgba(255,255,255,.7);
}
.footer__cta {
  display: inline-flex; align-items: center; gap: .5rem; margin-top: 1rem;
  background: #fff; color: var(--crimson-deep); font-weight: 700; font-size: .92rem;
  text-decoration: none; padding: .6rem 1.1rem; border-radius: 999px;
  box-shadow: 0 2px 10px -4px rgba(0,0,0,.4); transition: transform .15s, box-shadow .15s;
}
.footer__cta:hover { transform: translateY(-2px); box-shadow: 0 6px 16px -6px rgba(0,0,0,.5); }
.footer__contact-addr { margin: .7rem 0 0; font-size: .82rem; color: rgba(255,255,255,.62); }

/* ------------------------------------------------------------------- To-top */
.totop {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 40;
  width: 46px; height: 46px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--crimson); color: #fff; display: grid; place-items: center;
  box-shadow: var(--shadow-md); transition: transform .15s, background .15s, opacity .25s;
}
.totop:hover { transform: translateY(-2px); background: var(--crimson-bright); }

/* ----------------------------------------------------------------- Responsive */
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); gap: 1.2rem 1rem; }
  .masthead__meta { display: none; }
  .toolbar__inner { gap: .6rem; }
  .search { flex: 1 1 100%; order: -1; }
  .sortwrap__label { display: none; }
  .cards { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .filters { flex: 1 1 auto; justify-content: center; }
}