/* ============================================================================
   Pediatras — design system.

   Hand-written, no build step, no Tailwind. DosiPed shipped a Tailwind build
   artifact (app.built.css) that had to be regenerated with npx every time a
   class changed, which is a toolchain in front of a 2.000-line app. The warm
   pediatric look this brand needs is a dozen custom properties and about six
   components, so it is written once, here, and read directly by the browser.

   Tone: warm and welcoming, because the audience spends its day with children
   and their parents. NOT childish: the numbers on these screens are drug doses,
   so type stays large and legible, contrast stays high, and the playful part is
   colour and roundness, never the data.
   ========================================================================= */

/* ------------------------------------------------------------------ tokens */
:root {
  /* warm neutrals */
  --cream:      #fff9f3;
  --cream-deep: #fdf0e4;
  --surface:    #ffffff;
  --line:       #f2e3d6;
  --line-soft:  #faeee4;
  --ink:        #2e2420;
  --body:       #6b5a52;
  --muted:      #a28d82;

  /* pillar colours, one per tool, used as the only wayfinding device */
  --coral:      #f0653f;   --coral-deep: #d4482a;  --coral-soft: #ffe8e0;
  --mint:       #13a08d;   --mint-deep:  #0d7f70;  --mint-soft:  #d8f2ee;
  --sky:        #2f8fd0;   --sky-deep:   #1f72ad;  --sky-soft:   #dcedfa;
  --rosso:      #d93b3b;   --rosso-deep: #b32a2a;  --rosso-soft: #fbe1e1;
  --viola:      #7f5bd0;   --viola-deep: #6442b4;  --viola-soft: #ebe3fb;
  --sole:       #f5a623;   --sole-soft:  #fff1d8;

  --primary:      var(--coral);
  --primary-deep: var(--coral-deep);
  --primary-soft: var(--coral-soft);

  --radius:    18px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(46,36,32,.05);
  --shadow:    0 2px 4px rgba(46,36,32,.04), 0 12px 28px -16px rgba(212,72,42,.25);
  --shadow-lg: 0 4px 8px rgba(46,36,32,.05), 0 28px 56px -24px rgba(212,72,42,.3);

  --font-display: "Baloo 2", "Nunito Sans", system-ui, sans-serif;
  --font-body:    "Nunito Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ------------------------------------------------------------------ reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  background: var(--cream);
  background-image:
    radial-gradient(1100px 520px at 12% -8%,  rgba(245,166,35,.13), transparent 62%),
    radial-gradient(900px 480px at 92% 2%,   rgba(19,160,141,.11), transparent 60%),
    radial-gradient(800px 520px at 50% 108%, rgba(240,101,63,.10), transparent 62%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 .4em;
  font-weight: 700;
  letter-spacing: -.01em;
}
p { margin: 0 0 1em; }
a { color: var(--primary-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
::-webkit-scrollbar { width: 0; height: 0; }

/* ------------------------------------------------------------------ layout */
.wrap     { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.wrap-mid { max-width: 820px;  margin: 0 auto; padding: 0 20px; }
.app      { max-width: 620px;  margin: 0 auto; padding: 20px 16px 120px; }
.stack > * + * { margin-top: 1rem; }
.center   { text-align: center; }
.muted    { color: var(--muted); }
.small    { font-size: .86rem; }
.tiny     { font-size: .76rem; }
.kicker {
  font-size: .72rem; font-weight: 800; letter-spacing: .16em;
  text-transform: uppercase; color: var(--primary-deep);
}
.grid { display: grid; gap: 18px; }
@media (min-width: 680px)  { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px)  { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1000px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* ------------------------------------------------------------------ cards */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
}
.card-tight { padding: 16px; border-radius: var(--radius); }
.card-flat  { box-shadow: var(--shadow-sm); }

/* a feature card carries its pillar colour as a top rule and a soft icon chip */
.feature { position: relative; overflow: hidden; }
.feature::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 5px;
  background: var(--accent, var(--primary));
}
.feature .chip-icon {
  width: 52px; height: 52px; border-radius: 16px;
  display: grid; place-items: center; font-size: 26px;
  background: var(--accent-soft, var(--primary-soft));
  margin-bottom: 14px;
}
.feature h3 { font-size: 1.4rem; margin-bottom: .25em; }
.feature .lead { color: var(--ink); font-weight: 600; margin-bottom: .8em; }
.feature ul { margin: 0; padding: 0; list-style: none; }
.feature li {
  position: relative; padding-left: 26px; margin-bottom: .45em;
  font-size: .93rem; line-height: 1.5;
}
.feature li::before {
  content: ""; position: absolute; left: 6px; top: .62em;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent, var(--primary));
}

/* pillar accents, applied on the element */
.a-coral { --accent: var(--coral); --accent-soft: var(--coral-soft); }
.a-mint  { --accent: var(--mint);  --accent-soft: var(--mint-soft); }
.a-sky   { --accent: var(--sky);   --accent-soft: var(--sky-soft); }
.a-rosso { --accent: var(--rosso); --accent-soft: var(--rosso-soft); }
.a-viola { --accent: var(--viola); --accent-soft: var(--viola-soft); }
.a-sole  { --accent: var(--sole);  --accent-soft: var(--sole-soft); }

/* ------------------------------------------------------------------ buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-display); font-weight: 700; font-size: 1rem;
  padding: 13px 26px; border-radius: var(--radius-pill);
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--primary); color: #fff; box-shadow: var(--shadow);
}
.btn-primary:hover { background: var(--primary-deep); }
.btn-ghost {
  background: var(--surface); color: var(--ink); border-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary-deep); }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 16px; font-size: .88rem; }
.btn-danger { background: var(--rosso); color: #fff; }
.btn-ok     { background: var(--mint);  color: #fff; }

/* ------------------------------------------------------------------ forms */
label.lbl {
  display: block; font-size: .78rem; font-weight: 800; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 6px;
}
.input, select.input, textarea.input {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--ink);
  background: var(--surface); border: 1.5px solid var(--line);
  border-radius: var(--radius); padding: 12px 14px; outline: none;
  transition: border-color .12s ease, box-shadow .12s ease;
}
.input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}
.input::placeholder { color: var(--muted); }
select.input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a28d82' d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.field + .field { margin-top: 14px; }
.hint { font-size: .8rem; color: var(--muted); margin-top: 6px; }

/* ------------------------------------------------------------------ chips / badges */
.chip {
  display: inline-flex; align-items: center; gap: .4em;
  font-size: .82rem; font-weight: 700; padding: 6px 14px;
  border-radius: var(--radius-pill); border: 1.5px solid var(--line);
  background: var(--surface); color: var(--body); cursor: pointer;
  text-decoration: none; white-space: nowrap;
}
.chip:hover { text-decoration: none; border-color: var(--primary); }
.chip.on { background: var(--primary); border-color: var(--primary); color: #fff; }
.chip-row { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; }

.badge {
  display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .05em;
  text-transform: uppercase; padding: 3px 10px; border-radius: var(--radius-pill);
}
.badge-draft    { background: var(--sole-soft);  color: #8a5a00; }
.badge-approved { background: var(--mint-soft);  color: var(--mint-deep); }
.badge-rejected { background: var(--rosso-soft); color: var(--rosso-deep); }
.badge-pending  { background: var(--line-soft);  color: var(--body); }

/* ------------------------------------------------------------------ header */
.site-head {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255,249,243,.88); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-head .bar { display: flex; align-items: center; gap: 14px; height: 68px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: 1.45rem; font-weight: 800;
  color: var(--ink); text-decoration: none; letter-spacing: -.02em;
}
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--coral), var(--sole));
  color: #fff; font-size: 19px; box-shadow: var(--shadow-sm);
}
/* the name is ONE flex item: with <em> as its own item the .brand gap lands
   inside the word and it reads "Pediatr as" */
.brand .word { display: inline; }
.brand em { font-style: normal; color: var(--primary); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.nav-link { color: var(--body); font-weight: 600; font-size: .95rem; }
.nav-link:hover { color: var(--primary-deep); text-decoration: none; }
.icon-btn {
  background: none; border: 0; cursor: pointer; font-size: 1.05rem;
  color: var(--muted); padding: 4px; line-height: 1; text-decoration: none;
}
.icon-btn:hover { color: var(--primary); text-decoration: none; }

/* ------------------------------------------------------------------ hero */
.hero { padding: 72px 0 56px; text-align: center; position: relative; }
.hero h1 {
  font-size: clamp(2.6rem, 7vw, 4.3rem);
  line-height: 1.05; margin: 18px 0 0;
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero .sub {
  font-size: clamp(1.05rem, 2.3vw, 1.25rem);
  max-width: 640px; margin: 22px auto 0; color: var(--body);
}
.hero .cta { margin-top: 32px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .note { margin-top: 18px; font-size: .88rem; color: var(--muted); }
.trust {
  margin-top: 34px; display: inline-flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-pill); padding: 9px 20px;
  font-size: .84rem; font-weight: 600; color: var(--body);
  box-shadow: var(--shadow-sm);
}
.trust .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); }

/* section headings */
.section { padding: 56px 0; }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 36px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.section-head p  { font-size: 1.05rem; color: var(--body); margin: 0; }

/* numbered steps */
.steps { counter-reset: step; }
.step { position: relative; padding-left: 62px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800; font-size: 1.25rem;
  background: var(--primary-soft); color: var(--primary-deep);
}
.step h3 { font-size: 1.2rem; margin-bottom: .2em; }
.step p  { margin: 0; font-size: .95rem; }

/* why list */
.why-item { display: flex; gap: 14px; }
.why-item .ico {
  flex: 0 0 auto; width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center; font-size: 20px;
  background: var(--accent-soft, var(--primary-soft));
}
.why-item h3 { font-size: 1.08rem; margin-bottom: .15em; }
.why-item p  { margin: 0; font-size: .93rem; }

/* ------------------------------------------------------------------ patient bar */
.patient-bar {
  position: sticky; top: 68px; z-index: 20;
  background: rgba(255,249,243,.94); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.patient-bar .inner {
  max-width: 620px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 10px;
}
.patient-bar .pb-field { display: flex; align-items: center; gap: 6px; flex: 1; }
.patient-bar .pb-field.narrow { flex: 0 0 116px; }
.patient-bar input {
  width: 100%; text-align: center; font-weight: 800; font-size: 1.05rem;
  color: var(--ink); background: var(--surface);
  border: 1.5px solid var(--line); border-radius: 14px; padding: 9px 8px; outline: none;
}
.patient-bar input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); }
.patient-bar .unit { font-size: .85rem; font-weight: 700; color: var(--muted); }

/* ------------------------------------------------------------------ bottom nav */
.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  background: rgba(255,255,255,.95); backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabbar .inner { max-width: 620px; margin: 0 auto; display: grid; grid-template-columns: repeat(5, 1fr); }
.tab {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 9px 0 8px; color: var(--muted); font-size: .68rem; font-weight: 700;
  text-decoration: none;
}
.tab:hover { text-decoration: none; }
.tab .ico { font-size: 19px; line-height: 1; }
.tab.on { color: var(--accent, var(--primary)); }
.tab.on .ico { transform: translateY(-1px); }
.tab .dotmark { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }

/* ------------------------------------------------------------------ results */
.result {
  background: linear-gradient(140deg, var(--accent-soft, var(--primary-soft)), var(--surface) 70%);
  border: 1.5px solid var(--accent, var(--primary));
  border-radius: var(--radius-lg); padding: 22px; text-align: center;
}
.result .big {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.2rem, 9vw, 3rem); color: var(--ink); line-height: 1.05;
}
.result .unit-lg { font-size: 1.1rem; color: var(--body); font-weight: 700; }
.result .sub { font-size: .92rem; color: var(--body); margin-top: 6px; }
.readout { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px dashed var(--line); }
.readout:last-child { border-bottom: 0; }
.readout .k { color: var(--muted); font-size: .9rem; }
.readout .v { color: var(--ink); font-weight: 800; }
.source {
  margin-top: 12px; font-size: .78rem; color: var(--muted);
  border-top: 1px solid var(--line); padding-top: 10px;
}
.warnbox {
  background: var(--rosso-soft); border: 1px solid var(--rosso);
  color: var(--rosso-deep); border-radius: var(--radius);
  padding: 11px 14px; font-size: .88rem; font-weight: 700;
}
.notice {
  background: var(--sole-soft); border: 1px solid rgba(245,166,35,.45);
  border-radius: var(--radius); padding: 14px 16px; font-size: .92rem; color: #7a5200;
}
.empty { text-align: center; padding: 42px 20px; color: var(--muted); }
.empty .ico { font-size: 40px; margin-bottom: 10px; }

/* ------------------------------------------------------------------ tables */
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th {
  text-align: left; font-size: .72rem; letter-spacing: .07em; text-transform: uppercase;
  color: var(--muted); padding: 8px 10px; border-bottom: 1.5px solid var(--line);
}
.table td { padding: 10px; border-bottom: 1px solid var(--line-soft); color: var(--ink); }
.table tr:last-child td { border-bottom: 0; }
.table-scroll { overflow-x: auto; }

/* ------------------------------------------------------------------ modals / toast */
.modal {
  position: fixed; inset: 0; z-index: 60; display: none;
  align-items: center; justify-content: center; padding: 18px;
  background: rgba(46,36,32,.45); backdrop-filter: blur(4px);
}
.modal.open { display: flex; }
.modal .panel {
  background: var(--surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); max-width: 420px; width: 100%; padding: 28px;
}
.toast {
  position: fixed; bottom: 96px; left: 50%; transform: translateX(-50%);
  z-index: 70; background: var(--ink); color: #fff;
  border-radius: var(--radius-pill); padding: 10px 20px;
  font-size: .9rem; font-weight: 700; box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
.toast.show { opacity: 1; }

/* ------------------------------------------------------------------ auth pages */
.auth-wrap { max-width: 420px; margin: 0 auto; padding: 48px 20px 80px; }
.auth-wrap .card { padding: 30px; }
.auth-wrap h1 { font-size: 2rem; text-align: center; }
.auth-wrap .intro { text-align: center; color: var(--body); font-size: .95rem; }
.alert {
  border-radius: var(--radius); padding: 11px 14px; font-size: .9rem;
  font-weight: 600; margin-bottom: 16px;
}
.alert-bad { background: var(--rosso-soft); color: var(--rosso-deep); }
.alert-ok  { background: var(--mint-soft);  color: var(--mint-deep); }

/* ------------------------------------------------------------------ footer */
.site-foot { border-top: 1px solid var(--line); margin-top: 40px; background: rgba(255,255,255,.5); }
.site-foot .inner {
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  justify-content: space-between; padding: 30px 0;
}
.site-foot .disclaimer { font-size: .8rem; color: var(--muted); max-width: 520px; margin: 0; }

/* ------------------------------------------------------------------ a11y */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}