/* ================= Changing Tides — Mobile Price List ================= */
:root {
  --navy-900: #060e1c;   /* deepest bg */
  --navy-850: #0a1424;   /* page bg */
  --navy-800: #0e1a30;   /* panel A */
  --navy-750: #12213b;   /* panel B (alt) */
  --navy-line: #1c2c48;  /* borders */
  --teal:   #01c88a;     /* prices / accent */
  --teal-2: #16e0a3;
  --cyan:   #22c7e6;
  --blue:   #0b9bdc;
  --orange: #ff9500;     /* vivid orange wave */
  --text:   #f2f6fb;     /* high-contrast white */
  --text-2: #c4d2e4;     /* strength / secondary */
  --warn:   #ffd166;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;   /* prevent iOS auto-zoom text inflation */
  text-size-adjust: 100%;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;               /* guard against any horizontal scroll */
  background: var(--navy-850);
}

body {
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  color: var(--text);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

/* ---- Accessibility helpers ---- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--teal);
  color: var(--navy-900);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  font-weight: 600;
  z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--teal-2);
  outline-offset: 2px;
}

/* ================= HEADER ================= */
.site-header {
  position: relative;
  width: 100%;
  background:
    radial-gradient(120% 100% at 50% 0%, #123 0%, transparent 60%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  padding: 28px 16px 0;
  overflow: hidden;
  text-align: center;
  border-bottom: 2px solid var(--teal);
}

.header-inner {
  position: relative;
  z-index: 3;
  padding-bottom: 64px;   /* space so text sits above wave band */
}

.app-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 14px;
  border-radius: 22px;
  box-shadow: 0 8px 26px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.06);
}

.brand-title {
  margin: 0;
  font-size: clamp(1.6rem, 8vw, 2.6rem);
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--text);
  text-shadow: 0 2px 14px rgba(1,200,138,.25);
}

.brand-sub {
  margin: 6px 0 0;
  font-size: clamp(.82rem, 3.6vw, 1rem);
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--teal-2);
}

/* ---- layered wave motif ---- */
.waves {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: 120px;
  z-index: 1;
  pointer-events: none;
}
.wave {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 120px;
}
.wave-cyan   path { fill: rgba(34,199,230,.30); }
.wave-teal   path { fill: rgba(1,200,138,.38); }
.wave-blue   path { fill: rgba(11,155,220,.55); }
.wave-orange path { fill: var(--orange); }

/* ================= PARTNERSHIP BAR ================= */
.partner-bar {
  margin: 0;
  padding: 11px 16px;
  text-align: center;
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-line);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-2);
}
.partner-name {
  color: var(--orange);
  font-weight: 700;
}

/* ================= SHARE ================= */
.share-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 9px 18px;
  font-family: inherit;
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--teal-2);
  background: rgba(1,200,138,.08);
  border: 1px solid var(--teal);
  border-radius: 999px;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.share-btn:hover {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--navy-900);
}
.share-ico { flex: 0 0 auto; }
.share-status {
  min-height: 1.1em;
  font-size: .8rem;
  font-weight: 600;
  line-height: 1.35;
  text-align: center;
  color: var(--teal-2);
  opacity: 0;
  transition: opacity .2s ease;
}
.share-status.visible { opacity: 1; }

/* ================= SECTIONS ================= */
main {
  width: 100%;
  max-width: 100%;
  padding: 0;
}

.panel-section { width: 100%; }

/* offset so jump-link targets clear a little breathing room */
.cat-section { scroll-margin-top: 8px; }

/* ================= BROWSE BY RESEARCH GOAL NAV ================= */
.goal-nav {
  width: 100%;
  padding: 16px 16px 18px;
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-line);
}
.goal-nav-title {
  margin: 0 0 12px;
  font-size: clamp(.9rem, 4vw, 1.1rem);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan);
}
.goal-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.goal-chip {
  display: inline-block;
  max-width: 100%;
  padding: 9px 13px;
  font-family: inherit;
  font-size: .82rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
  background: var(--navy-800);
  border: 1px solid var(--navy-line);
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  overflow-wrap: break-word;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}
.goal-chip:hover { border-color: var(--teal); color: var(--teal-2); }
.goal-chip-all {
  color: var(--navy-900);
  background: var(--teal);
  border-color: var(--teal);
}
.goal-chip-all:hover { background: var(--teal-2); border-color: var(--teal-2); color: var(--navy-900); }
.goal-chip-all[aria-pressed="true"] {
  background: var(--teal-2);
  border-color: var(--teal-2);
  box-shadow: 0 0 0 2px rgba(1,200,138,.35);
}
.goal-nav-note {
  margin: 14px 0 0;
  font-size: .76rem;
  line-height: 1.5;
  color: var(--text-2);
}

.section-heading {
  margin: 0;
  padding: 20px 16px 10px;
  font-size: clamp(.98rem, 4.4vw, 1.25rem);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-line);
}

/* ================= PRICE LIST ================= */
.price-list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;               /* ~16px side padding */
  border-bottom: 1px solid var(--navy-line);
}

/* alternating dark item panels */
.price-row:nth-child(odd)  { background: var(--navy-800); }
.price-row:nth-child(even) { background: var(--navy-750); }

.item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;                     /* allow long names to wrap, not overflow */
  flex: 1 1 auto;
}

.name {
  font-size: 1.0625rem;            /* ~17px */
  font-weight: 600;
  color: var(--text);
  overflow-wrap: break-word;
  word-break: break-word;
  hyphens: auto;
}

.strength {
  font-size: 0.9375rem;           /* ~15px */
  font-weight: 400;
  color: var(--text-2);
  overflow-wrap: break-word;
}
.strength:empty { display: none; }

.price {
  flex: 0 0 auto;
  font-size: 1.1875rem;           /* ~19px */
  font-weight: 700;
  color: var(--teal);
  white-space: nowrap;            /* price always legible on one line */
  font-variant-numeric: tabular-nums;
}

/* ================= WARNINGS ================= */
.warnings {
  width: 100%;
  padding: 26px 16px 96px;
  text-align: center;
  background: var(--navy-900);
  border-top: 2px solid var(--orange);
}
.warn-primary {
  margin: 0 0 8px;
  font-size: clamp(.9rem, 4vw, 1.05rem);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--warn);
}
.warn-note {
  margin: 12px auto 0;
  max-width: 44ch;
  font-size: .82rem;
  color: var(--text-2);
  line-height: 1.5;
}

/* ================= BACK TO TOP ================= */
.back-to-top {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 40;
  padding: 10px 14px;
  font-family: inherit;
  font-size: .85rem;
  font-weight: 600;
  color: var(--navy-900);
  background: var(--teal);
  border: none;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(0,0,0,.4);
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { background: var(--teal-2); }

/* ================= LARGER SCREENS (retain mobile optimization) ================= */
@media (min-width: 700px) {
  main { max-width: 760px; margin: 0 auto; }
  .site-header { padding-top: 40px; }
  .app-icon { width: 108px; height: 108px; }
  .price-row { padding: 18px 24px; }
  .section-heading { padding: 24px 24px 12px; }
  .name { font-size: 1.15rem; }
  .strength { font-size: 1rem; }
  .price { font-size: 1.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  .back-to-top { transition: none; }
  .share-btn, .share-status { transition: none; }
  html { scroll-behavior: auto; }
}


/* ---- Pricing announcement banner ---- */
.announce {
  position: relative; max-width: 640px; margin: 18px auto 26px; overflow: hidden;
  background: linear-gradient(160deg, var(--navy-800) 0%, var(--navy-750) 55%, var(--navy-800) 100%);
  border: 1px solid var(--navy-line); border-radius: 18px;
  box-shadow: 0 0 0 1px rgba(1,200,138,.12), 0 12px 40px rgba(0,0,0,.45), 0 0 60px rgba(11,155,220,.08);
  padding: 30px 24px 0; text-align: center;
}
.announce::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4px;
  background: linear-gradient(180deg, var(--cyan), var(--teal), var(--blue), var(--orange));
}
.announce-eyebrow {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .22em;
  color: var(--teal-2); border: 1px solid rgba(22,224,163,.35); border-radius: 999px;
  padding: 6px 14px; margin-bottom: 16px; background: rgba(1,200,138,.08);
}
.announce-title {
  margin: 0 0 12px; font-size: clamp(24px, 6.2vw, 32px); font-weight: 700; line-height: 1.15;
  background: linear-gradient(90deg, var(--cyan), var(--teal-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.announce-body { margin: 0 auto 8px; max-width: 46ch; font-size: 15.5px; line-height: 1.65; color: var(--text-2); }
.announce-body strong { color: var(--text); font-weight: 600; }
.announce-line { margin: 14px 0 0; font-size: 12.5px; font-weight: 600; letter-spacing: .08em; color: var(--teal); }
.announce-waves { position: relative; height: 56px; margin-top: 20px; }
.announce-waves svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.announce-waves .w1 { fill: rgba(34,199,230,.30); }
.announce-waves .w2 { fill: rgba(1,200,138,.38); }
.announce-waves .w3 { fill: rgba(11,155,220,.55); }
.announce-waves .w4 { fill: var(--orange); }

/* ---- last-updated stamp ---- */
.updated-stamp {
  text-align: center; font-size: 12px; letter-spacing: .06em;
  color: #5c7190; margin: 26px 0 0;
}