/* ==========================================================================
   Thankful Learning Center
   Palette contrast was measured, not eyeballed: every foreground/background
   pair below clears WCAG AA (most clear AAA) in light and dark.
   Layout leans on space, rhythm and hairline rules — not boxed cards.
   ========================================================================== */

:root {
  --paper:     #FBF9F6;
  --surface:   #F3EFE9;
  --ink:       #1A1714;
  --ink-soft:  #5A544C;
  --accent:    #0F6B5C;
  --accent-ink:#FFFFFF;
  --warm:      #A8542A;
  --danger:    #A32821;
  --rule:      rgba(26, 23, 20, 0.14);
  --rule-soft: rgba(26, 23, 20, 0.07);
  --chrome:    rgba(251, 249, 246, 0.72);
  --shadow-lift: 0 1px 2px rgba(26,23,20,.05), 0 8px 24px rgba(26,23,20,.07);

  --step--1: clamp(.82rem, .79rem + .12vw, .89rem);
  --step-0:  clamp(1rem, .96rem + .2vw, 1.09rem);
  --step-1:  clamp(1.2rem, 1.12rem + .4vw, 1.45rem);
  --step-2:  clamp(1.5rem, 1.34rem + .8vw, 2.05rem);
  --step-3:  clamp(1.95rem, 1.6rem + 1.7vw, 3rem);
  --step-4:  clamp(2.4rem, 1.7rem + 3.4vw, 4.4rem);

  --gutter: clamp(1.15rem, .7rem + 2.2vw, 2.75rem);
  --measure: 68ch;
  --radius: 14px;

  /* Apple's shipped spring feel: critically damped by default. */
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:     #141210;
    --surface:   #1F1C19;
    --ink:       #F5F1EB;
    --ink-soft:  #A9A199;
    --accent:    #5FD3BC;
    --accent-ink:#0B1A17;
    --warm:      #E8A472;
    --danger:    #F0857C;
    --rule:      rgba(245, 241, 235, 0.16);
    --rule-soft: rgba(245, 241, 235, 0.08);
    --chrome:    rgba(20, 18, 16, 0.72);
    --shadow-lift: 0 1px 2px rgba(0,0,0,.4), 0 8px 28px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"] {
  --paper:#141210; --surface:#1F1C19; --ink:#F5F1EB; --ink-soft:#A9A199;
  --accent:#5FD3BC; --accent-ink:#0B1A17; --warm:#E8A472; --danger:#F0857C;
  --rule:rgba(245,241,235,.16); --rule-soft:rgba(245,241,235,.08);
  --chrome:rgba(20,18,16,.72);
  --shadow-lift:0 1px 2px rgba(0,0,0,.4), 0 8px 28px rgba(0,0,0,.45);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Tracking is size-specific: large type tightens, small type opens up. */
h1, h2, h3 { margin: 0 0 .5em; font-weight: 650; line-height: 1.1; letter-spacing: -0.021em; }
h1 { font-size: var(--step-3); letter-spacing: -0.028em; }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); letter-spacing: -0.014em; }
p  { margin: 0 0 1.1em; max-width: var(--measure); }
small, .small { font-size: var(--step--1); letter-spacing: .005em; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap { width: min(100% - (var(--gutter) * 2), 1120px); margin-inline: auto; }
.wrap--narrow { width: min(100% - (var(--gutter) * 2), 760px); margin-inline: auto; }
.section { padding-block: clamp(3rem, 1.8rem + 5vw, 7rem); }
.stack > * + * { margin-top: 1.1rem; }

/* ---------- Translucent chrome: content scrolls under, not behind a slab ---- */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: var(--chrome);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--rule-soft);
}
.masthead__inner { display: flex; align-items: center; gap: 1.5rem; min-height: 60px; }
.brand { font-weight: 680; letter-spacing: -0.02em; text-decoration: none; color: var(--ink); margin-right: auto; }
.brand span { color: var(--accent); }

.nav { display: flex; gap: .25rem; align-items: center; }
.nav a {
  color: var(--ink-soft); text-decoration: none; font-size: var(--step--1);
  font-weight: 560; padding: .5rem .7rem; border-radius: 9px;
  transition: color 140ms var(--ease-out), background-color 140ms var(--ease-out);
}
.nav a:hover { color: var(--ink); background: var(--rule-soft); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--rule-soft); }

.nav-toggle { display: none; }

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 38px; border: 1px solid var(--rule); border-radius: 10px;
    background: transparent; color: var(--ink); cursor: pointer;
  }
  .nav {
    position: absolute; inset: 100% var(--gutter) auto; flex-direction: column;
    align-items: stretch; gap: 2px; padding: .5rem;
    background: var(--chrome);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    backdrop-filter: blur(22px) saturate(180%);
    border: 1px solid var(--rule-soft); border-radius: var(--radius);
    box-shadow: var(--shadow-lift);
    /* Anchored to the button that opened it, per spatial consistency. */
    transform-origin: top right;
    opacity: 0; transform: scale(.96) translateY(-6px); pointer-events: none;
    transition: opacity 180ms var(--ease-out), transform 240ms var(--ease-out);
  }
  .nav[data-open="true"] { opacity: 1; transform: none; pointer-events: auto; }
  .nav a { padding: .7rem .8rem; }
}

/* ---------- Buttons: feedback on press, not on release ---------- */
.btn {
  --btn-bg: var(--accent); --btn-fg: var(--accent-ink);
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .72rem 1.25rem; border: 1px solid transparent; border-radius: 11px;
  background: var(--btn-bg); color: var(--btn-fg);
  font: inherit; font-size: var(--step--1); font-weight: 620; letter-spacing: .004em;
  text-decoration: none; cursor: pointer;
  transition: transform 120ms var(--ease-out), filter 140ms var(--ease-out);
  touch-action: manipulation;
}
.btn:hover { filter: brightness(1.07); }
.btn:active { transform: scale(.975); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--ink); border-color: var(--rule); }
.btn--ghost:hover { background: var(--rule-soft); filter: none; }
.btn--danger { --btn-bg: transparent; --btn-fg: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.btn--sm { padding: .45rem .8rem; border-radius: 9px; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3.5rem, 2rem + 7vw, 8.5rem) clamp(2.5rem, 1.5rem + 4vw, 5rem); }
.hero h1 { font-size: var(--step-4); max-width: 16ch; margin-bottom: .35em; }
.hero p.lede { font-size: var(--step-1); color: var(--ink-soft); max-width: 46ch; line-height: 1.45; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

/* ---------- Editorial rows instead of boxed cards ---------- */
.rows { border-top: 1px solid var(--rule); }
.row-item {
  display: grid; grid-template-columns: 1fr auto; gap: .5rem 2rem; align-items: baseline;
  padding-block: clamp(1.4rem, 1rem + 1.4vw, 2.3rem);
  border-bottom: 1px solid var(--rule);
  text-decoration: none; color: inherit;
  transition: background-color 160ms var(--ease-out);
}
a.row-item:hover { background: var(--rule-soft); }
.row-item__title { font-size: var(--step-1); font-weight: 640; letter-spacing: -0.015em; margin: 0; }
.row-item__meta { color: var(--ink-soft); font-size: var(--step--1); grid-column: 1 / -1; margin: 0; max-width: 62ch; }
.row-item__go { color: var(--accent); font-size: var(--step--1); font-weight: 620; white-space: nowrap; }

/* ---------- Figures / stats: numerals carry it, no tiles ---------- */
.figures { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 2rem 1.5rem; }
.figure__n { font-size: var(--step-3); font-weight: 680; letter-spacing: -0.03em; line-height: 1; color: var(--ink); }
.figure__label { color: var(--ink-soft); font-size: var(--step--1); margin-top: .35rem; }

/* ---------- Reveal on scroll (opacity+transform only) ---------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity 620ms var(--ease-out), transform 720ms var(--ease-out); }

/* ---------- Forms ---------- */
.field { margin-bottom: 1.15rem; }
.field label { display: block; font-size: var(--step--1); font-weight: 600; margin-bottom: .35rem; }
.field .hint { color: var(--ink-soft); font-size: var(--step--1); margin: .3rem 0 0; }
input[type=text], input[type=email], input[type=tel], input[type=date],
input[type=password], input[type=search], select, textarea {
  width: 100%; padding: .68rem .8rem;
  background: var(--paper); color: var(--ink);
  border: 1px solid var(--rule); border-radius: 10px;
  font: inherit; font-size: var(--step-0);
  transition: border-color 140ms var(--ease-out), box-shadow 140ms var(--ease-out);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
  outline: none;
}
textarea { min-height: 8.5rem; resize: vertical; line-height: 1.55; }
.field--error input, .field--error textarea, .field--error select { border-color: var(--danger); }
.error-text { color: var(--danger); font-size: var(--step--1); margin: .35rem 0 0; font-weight: 560; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.notice { padding: .85rem 1.05rem; border-radius: 11px; border: 1px solid var(--rule); margin-bottom: 1.5rem; font-size: var(--step--1); }
.notice--success { border-color: color-mix(in srgb, var(--accent) 45%, transparent); background: color-mix(in srgb, var(--accent) 9%, transparent); }
.notice--error   { border-color: color-mix(in srgb, var(--danger) 45%, transparent); background: color-mix(in srgb, var(--danger) 8%, transparent); }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.data { width: 100%; border-collapse: collapse; font-size: var(--step--1); }
table.data th, table.data td { text-align: left; padding: .72rem .6rem; border-bottom: 1px solid var(--rule-soft); white-space: nowrap; }
table.data th { font-weight: 640; color: var(--ink-soft); border-bottom-color: var(--rule); position: sticky; top: 0; background: var(--paper); }
table.data tbody tr { transition: background-color 130ms var(--ease-out); }
table.data tbody tr:hover { background: var(--rule-soft); }
table.data a { font-weight: 600; }

.pill { display: inline-block; padding: .18rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 620; border: 1px solid var(--rule); color: var(--ink-soft); }
.pill--active { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.pill--warn   { color: var(--warm); border-color: color-mix(in srgb, var(--warm) 45%, transparent); }

/* ---------- Admin shell ---------- */
.admin-bar { border-bottom: 1px solid var(--rule); background: var(--surface); }
.admin-bar__inner { display: flex; align-items: center; gap: 1rem; min-height: 54px; flex-wrap: wrap; }
.admin-bar .nav a { font-size: var(--step--1); }
.admin-bar__user { margin-left: auto; color: var(--ink-soft); font-size: var(--step--1); display: flex; align-items: center; gap: .75rem; }

.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.4rem 2rem; border-top: 1px solid var(--rule); padding-top: 1.5rem; }
.detail dt { font-size: var(--step--1); color: var(--ink-soft); margin-bottom: .2rem; }
.detail dd { margin: 0; font-weight: 560; }

.toolbar { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; margin-bottom: 1.5rem; }
.toolbar form { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.toolbar input[type=search], .toolbar select { width: auto; min-width: 12rem; }

.sensitive { border-left: 3px solid var(--warm); padding-left: 1rem; }
.sensitive__tag { color: var(--warm); font-size: var(--step--1); font-weight: 640; letter-spacing: .01em; }

.footer { border-top: 1px solid var(--rule); padding-block: 2.5rem 3.5rem; color: var(--ink-soft); font-size: var(--step--1); margin-top: 4rem; }
.footer a { color: var(--ink-soft); }
.footer__cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1.75rem; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: var(--gutter); top: .5rem; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: .6rem 1rem; border-radius: 9px; }

/* ---------- Accessibility preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important; scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .nav { transition: opacity 120ms linear; transform: none !important; }
}
@media (prefers-reduced-transparency: reduce) {
  .masthead, .nav { background: var(--paper); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (prefers-contrast: more) {
  :root { --rule: rgba(26,23,20,.5); --rule-soft: rgba(26,23,20,.22); --ink-soft: #3C3832; }
  .masthead, .nav { background: var(--paper); -webkit-backdrop-filter: none; backdrop-filter: none; }
  .btn { border-color: currentColor; }
}
@media print {
  .masthead, .admin-bar, .footer, .toolbar, .btn { display: none !important; }
  body { background: #fff; color: #000; }
}