/* RIVER MEDICINE — site styles
   Poppins, matching the old site. Design tokens in :root. */

:root {
  --ink:     #14202a;   /* deep river blue-black */
  --deep:    #1b2b36;
  --paper:   #ffffff;
  --wash:    #f2f5f4;   /* pale stone */
  --text:    #33424a;   /* 10:1 on white */
  --muted:   #6b7a82;
  --line:    rgba(20,32,42,.13);
  --accent:  #2e6b5e;   /* river green */
  --accent-light: #7fd4bd;  /* lifted, for dark photos */

  --font: "Poppins", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --measure: 36rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --section-y: clamp(3.5rem, 9vw, 6.5rem);
  --header-h: 4.25rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration:.01ms !important; transition-duration:.01ms !important; }
}

body { margin:0; background:var(--paper); color:var(--text);
  font-family:var(--font); font-size:1rem; font-weight:300; line-height:1.8;
  -webkit-font-smoothing:antialiased; }
img { max-width:100%; height:auto; display:block; }
a { color:inherit; text-decoration-thickness:1px; text-underline-offset:.18em; }
a:hover { color:var(--accent); }
:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }

.skip-link { position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--paper); color:var(--ink); padding:.75rem 1rem; }
.skip-link:focus { left:0; }

/* ---------- header ---------- */
.site-header { position:fixed; inset:0 0 auto 0; z-index:100; height:var(--header-h);
  display:flex; align-items:center; justify-content:space-between; padding:0 var(--gutter);
  background:rgba(255,255,255,.94); backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line); }
.site-header--over { background:transparent; backdrop-filter:none; border-bottom:0; }
.site-header__title { margin:0; font-size:clamp(1rem,3vw,1.3rem); font-weight:500;
  letter-spacing:.02em; color:var(--ink); }
.site-header--over .site-header__title { color:#fff; text-shadow:0 1px 12px rgba(0,0,0,.5); }
.site-header__title a { text-decoration:none; }

.menu-toggle { width:2.75rem; height:2.75rem; display:grid; place-content:center; gap:6px;
  background:none; border:0; padding:0; cursor:pointer; }
.menu-toggle span { display:block; width:26px; height:2px; background:var(--ink);
  transition:transform .25s ease, opacity .2s ease; }
.site-header--over .menu-toggle span { background:#fff; }
.menu-toggle[aria-expanded="true"] span { background:#fff; }
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* ---------- menu drawer ---------- */
.site-nav { position:fixed; inset:0; z-index:90; visibility:hidden; transition:visibility .3s ease; }
.site-nav[data-open="true"] { visibility:visible; }
.site-nav__backdrop { position:absolute; inset:0; background:rgba(0,0,0,.45);
  opacity:0; transition:opacity .3s ease; }
.site-nav[data-open="true"] .site-nav__backdrop { opacity:1; }
.site-nav__panel { position:absolute; top:0; bottom:0; right:0; width:min(84vw,20rem);
  background:var(--ink); display:grid; place-content:center;
  transform:translateX(100%); transition:transform .3s cubic-bezier(.4,0,.2,1); overflow-y:auto; }
@media (min-width:64rem){ .site-nav__panel{ width:clamp(18rem,26vw,25rem);} }
.site-nav[data-open="true"] .site-nav__panel { transform:none; }
.site-nav ul { list-style:none; margin:0; padding:0; text-align:center; }
.site-nav li + li { margin-top:clamp(.5rem,2vw,1rem); }
.site-nav a { display:block; padding:.4rem 1.25rem; font-size:clamp(1.15rem,5vw,1.5rem);
  font-weight:400; color:rgba(255,255,255,.75); text-decoration:none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color:#fff; }

/* ---------- hero ---------- */
.hero { position:relative; min-height:min(90svh,46rem); display:grid; align-items:end;
  overflow:hidden; background:var(--ink); }
.hero__img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.hero::after { content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,.4) 0%, rgba(0,0,0,.12) 35%, rgba(0,0,0,.72) 100%); }
.hero__inner { position:relative; z-index:1; padding:var(--gutter);
  padding-bottom:clamp(2.5rem,7vw,4.5rem); max-width:50rem; }
.hero h1 { margin:0 0 1.5rem; color:#fff; font-weight:400; letter-spacing:-.01em;
  font-size:clamp(1.5rem,4.4vw,2.6rem); line-height:1.3; }

/* ---------- page head ---------- */
.page-head { padding:calc(var(--header-h) + var(--section-y)) var(--gutter) 0; }
.page-head h1 { margin:0 auto; max-width:50rem; color:var(--ink); font-weight:500;
  line-height:1.2; font-size:clamp(1.6rem,5vw,2.6rem); }

/* ---------- sections ---------- */
.section { padding:var(--section-y) var(--gutter); }
[id] { scroll-margin-top:calc(var(--header-h) + 1rem); }
.section--dark { background:var(--deep); color:rgba(255,255,255,.86); }
.section--dark h2,.section--dark h3 { color:#fff; }
.section--wash { background:var(--wash); }
.wrap { max-width:var(--measure); margin-inline:auto; }
.wrap--wide { max-width:62rem; margin-inline:auto; }

h2 { margin:0 0 1.25rem; color:var(--ink); font-weight:500; line-height:1.3;
  font-size:clamp(1.3rem,3.6vw,2rem); }
h3 { margin:2.5rem 0 .75rem; color:var(--ink); font-weight:500; font-size:1.15rem; }
p { margin:0 0 1.35rem; }
p:last-child { margin-bottom:0; }
.lede { font-size:1.1rem; font-weight:400; }
.muted { color:var(--muted); font-size:.9rem; }

figure { margin:0; }
figcaption { margin-top:.6rem; font-size:.82rem; color:var(--muted); }
.media { margin-block:var(--section-y); }
.band { width:100%; }
.band img { width:100%; }

/* ---------- buttons ---------- */
.button { display:inline-block; background:var(--accent); color:#fff;
  padding:.95rem 2rem; border:1px solid var(--accent); font:inherit; font-weight:500;
  font-size:.95rem; text-decoration:none; cursor:pointer;
  transition:background .2s ease,color .2s ease; }
.button:hover { background:transparent; color:var(--accent); }
.button--ghost { background:transparent; color:#fff; border-color:#fff; }
.button--ghost:hover { background:#fff; color:var(--ink); }

/* ---------- quotes ---------- */
.quote { margin:0 0 2.5rem; padding-left:1.25rem; border-left:2px solid var(--accent); }
.quote p { font-size:1.05rem; font-style:italic; }
.quote cite { display:block; margin-top:.5rem; font-style:normal; color:var(--muted);
  font-size:.9rem; }

/* ---------- audio ---------- */
.track { border:1px solid var(--line); padding:clamp(1.25rem,3vw,1.75rem);
  margin-bottom:1.5rem; background:#fff; }
.track h3 { margin:0 0 .25rem; font-size:1.05rem; }
.track .len { color:var(--muted); font-size:.85rem; margin-bottom:.9rem; }
.track audio { width:100%; }

/* ---------- FAQ ---------- */
.faq details { border-bottom:1px solid var(--line); padding:.35rem 0; }
.faq summary { cursor:pointer; padding:1rem 0; font-weight:500; color:var(--ink);
  list-style:none; display:flex; justify-content:space-between; gap:1rem; align-items:start; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content:"+"; color:var(--accent); font-weight:300; font-size:1.4rem; line-height:1; }
.faq details[open] summary::after { content:"\2013"; }
.faq details > p { padding-bottom:1.25rem; }

/* ---------- safety notice ---------- */
.notice { border:1px solid var(--line); border-left:3px solid var(--accent);
  background:var(--wash); padding:clamp(1.25rem,3vw,2rem); margin-block:2.5rem; }
.notice h3 { margin-top:0; }
.notice p:last-child { margin-bottom:0; }

/* ---------- footer ---------- */
.site-footer { background:var(--ink); color:rgba(255,255,255,.62);
  padding:var(--section-y) var(--gutter); text-align:center; font-size:.9rem; }
.site-footer a { color:rgba(255,255,255,.9); }
.social { list-style:none; margin:0 0 1.5rem; padding:0;
  display:flex; flex-wrap:wrap; gap:1.25rem; justify-content:center; }
.social a { font-weight:500; font-size:.85rem; text-decoration:none; }

.visually-hidden { position:absolute; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); clip-path:inset(50%); white-space:nowrap; }