/* Zentle Reminder — marketing site.
   Built for Meta Cloud API business verification: the crawler must find a
   working HTTPS page carrying the legal business name, what the product does,
   and reachable contact details. Kept dependency-free so it can never break. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --teal:     #0f766e;      /* matches the app's primary */
  --teal-dk:  #0b544e;
  --teal-lt:  #e6f4f2;
  --ink:      #14251f;
  --ink-2:    #4a5b55;
  --ink-3:    #7b8a85;
  --bg:       #ffffff;
  --bg-2:     #f6f8f7;
  --line:     #e3ebe8;
  --amber:    #b45309;
  --radius:   12px;
  --wrap:     1080px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

/* ---- header ---- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 62px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  flex: 0 0 auto;
  display: block;
}

.brand-name { font-weight: 700; font-size: 17px; letter-spacing: -.2px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--teal); }
/* The nav link rule above is more specific than .btn, which blanked out the
   white label on the filled header button. Restore it explicitly. */
.nav a.btn { color: #fff; }
.nav a.btn:hover { color: #fff; }

.btn {
  display: inline-block; padding: 11px 20px; border-radius: 9px;
  background: var(--teal); color: #fff; text-decoration: none;
  font-weight: 600; font-size: 15px; border: 1px solid var(--teal);
  transition: background .15s;
}
.btn:hover { background: var(--teal-dk); }
.btn-ghost { background: transparent; color: var(--teal); }
.btn-ghost:hover { background: var(--teal-lt); }

/* ---- sections ---- */
/* 68px top and bottom meant 136px between every section, which on an 8-section
   page was over 1000px of gap. 44px still separates them clearly. */
section { padding: 44px 0; }
.section-tight { padding: 30px 0; }
h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; letter-spacing: -1px; font-weight: 700; }
h2 { font-size: clamp(23px, 3.2vw, 30px); line-height: 1.25; letter-spacing: -.5px; margin-bottom: 14px; font-weight: 700; }
h3 { font-size: 18px; margin-bottom: 7px; font-weight: 650; }
p  { color: var(--ink-2); }
.lead { font-size: clamp(16px, 2.1vw, 19px); color: var(--ink-2); max-width: 60ch; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--teal); margin-bottom: 12px;
}
.alt { background: var(--bg-2); }

.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.card .ico {
  width: 38px; height: 38px; border-radius: 9px; background: var(--teal-lt);
  display: grid; place-items: center; margin-bottom: 12px; font-size: 19px;
}

/* ---- footer ---- */
.site-foot { background: var(--ink); color: #c9d6d1; padding: 46px 0 26px; font-size: 14.5px; }
.site-foot a { color: #c9d6d1; text-decoration: none; }
.site-foot a:hover { color: #fff; text-decoration: underline; }
.foot-grid { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.foot-h { color: #fff; font-weight: 650; margin-bottom: 9px; font-size: 15px; }
.foot-bottom {
  border-top: 1px solid #2b3a35; margin-top: 30px; padding-top: 18px;
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between;
  color: #93a49e; font-size: 13.5px;
}

/* ---- legal pages ---- */
.legal { max-width: 780px; margin: 0 auto; padding: 46px 20px 70px; }
.legal h1 { margin-bottom: 8px; }
.legal .updated { color: var(--ink-3); font-size: 14px; margin-bottom: 30px; }
.legal h2 { margin-top: 34px; font-size: 21px; }
.legal p, .legal li { margin-bottom: 11px; }
.legal ul, .legal ol { padding-left: 22px; }
.legal a { color: var(--teal); }
.toc { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; margin-bottom: 8px; }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin-bottom: 4px; }

.callout {
  border-left: 3px solid var(--teal); background: var(--teal-lt);
  padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 18px 0;
}
.callout p { color: var(--ink); }

table.contact { border-collapse: collapse; width: 100%; margin-top: 10px; }
table.contact td { padding: 7px 0; vertical-align: top; border-bottom: 1px solid var(--line); }
table.contact td:first-child { color: var(--ink-3); width: 130px; font-size: 14px; }

@media (max-width: 640px) {
  .nav a:not(.btn) { display: none; }
  section { padding: 34px 0; }
}

/* ---- numbered steps on the landing page ----
   A shopkeeper should follow one customer from first bill to final payment
   without reading a feature list. The numbers carry the sequence, so they are
   large and joined by a vertical line: the eye should see 1-2-3-4 before it
   reads a single word. */
.steps {
  display: grid;
  gap: 0;
  margin-top: 22px;
  max-width: 700px;
}

.step {
  position: relative;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 0 0 24px 0;
}

.step:last-child { padding-bottom: 0; }

/* The connecting line runs from each number down to the next one. */
.step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: -2px;
  width: 2px;
  background: var(--line);
}

.step:last-child::before { display: none; }

.step-num {
  flex: 0 0 auto;
  position: relative;
  z-index: 1;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 19px;
  line-height: 1;
  box-shadow: 0 0 0 5px var(--bg-2);
}

.step-body {
  padding-top: 8px;
}

.step h3 {
  margin-bottom: 5px;
  font-size: 17px;
}

.step p { margin: 0; }

@media (max-width: 640px) {
  .step { gap: 15px; padding-bottom: 26px; }
  .step::before { left: 18px; top: 42px; }
  .step-num { width: 38px; height: 38px; font-size: 17px; }
  .step-body { padding-top: 6px; }
  .step h3 { font-size: 16px; }
}

/* ---- hero with artwork ----
   The illustration is decorative, so it is hidden below md rather than
   squeezed: on a phone the copy and the buttons matter far more. */
.hero-wrap {
  display: flex;
  align-items: center;
  gap: 40px;
}

.hero-copy { flex: 1 1 auto; min-width: 0; }

.hero-art {
  flex: 0 0 auto;
  width: 260px;
  max-width: 34%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--teal-lt);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 72px;
}

@media (max-width: 860px) {
  .hero-art { display: none; }
}