/* STRIDE & STRENGTH — CLEAN UI V1 */

:root {
  --bg: #0d1424;
  --surface: #192438;
  --surface-soft: #202e43;
  --border: #304158;
  --text: #f5f7fc;
  --muted: #a9b8cc;
  --accent: #7568ed;
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, sans-serif;
  padding: 0 16px 115px;
  margin: 0;
}

header, main {
  max-width: 720px;
  margin: auto;
}

header { padding: 25px 0 12px; }

h1 {
  font-size: clamp(26px, 6vw, 34px);
  letter-spacing: -.8px;
  line-height: 1.2;
  margin: 0 0 9px;
}

h2 {
  font-size: 21px;
  letter-spacing: -.35px;
  margin: 26px 0 12px;
}

h3 { font-size: 17px; }

p, small {
  color: var(--muted);
  line-height: 1.55;
}

main > section {
  padding-bottom: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 17px;
  margin: 12px 0;
  box-shadow: none;
}

.hero {
  background: linear-gradient(
    125deg, #443a9b, #145e77
  );
  border-radius: 20px;
  padding: 24px;
  margin: 16px 0 22px;
}

.hero h2 { margin-top: 0; }
.hero p { color: #e4e8fa; }

button {
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: 11px;
  padding: 12px 16px;
  min-height: 43px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: .55;
  cursor: not-allowed;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid #a5b4fc;
  outline-offset: 3px;
}

input, textarea, select {
  background: #111d2f;
  color: var(--text);
  border: 1px solid #43526a;
  border-radius: 11px;
  padding: 12px;
  font: inherit;
  max-width: 100%;
}

textarea {
  line-height: 1.55;
  resize: vertical;
}

label {
  color: #d1dbea;
  font-size: 13px;
  font-weight: 500;
}

details > summary {
  cursor: pointer;
  padding: 4px 0;
  font-weight: 650;
}

details[open] > summary {
  margin-bottom: 12px;
}

#mealPlan > details {
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--surface-soft);
  margin: 9px 0;
  padding: 12px;
}

#mealHistory .diary-day {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 15px;
  padding: 13px;
}

#mealHistory .diary-day .card {
  background: var(--surface-soft);
  border: 0;
  margin: 7px 0;
  padding: 12px;
  font-size: 13px;
}

#mealHistory button {
  font-size: 12px;
  padding: 7px 11px;
  min-height: 34px;
}

#menuBuilderFold,
#mealRecommendations {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 15px;
  padding: 15px;
}

#progress svg,
#weightGraph {
  max-width: 100%;
  height: auto;
}

#signedIn {
  font-size: 13px;
}

#signedIn button {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  font-size: 12px;
  min-height: 36px;
  padding: 8px 11px;
}

#cloudStatus {
  color: var(--muted);
  font-size: 12px;
}

/* Mobile navigation */
nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0,1fr));
  gap: 3px;
  background: #101a2b;
  border-top: 1px solid var(--border);
  padding: 9px 5px max(
    12px, env(safe-area-inset-bottom)
  );
  z-index: 100;
  box-shadow: 0 -8px 25px #0002;
}

nav button {
  background: transparent;
  font-size: 10px;
  font-weight: 500;
  padding: 11px 2px;
  min-height: 43px;
  border-radius: 9px;
  white-space: nowrap;
}

nav button.active {
  background: #5145cd;
  font-weight: 700;
}

@media (min-width: 720px) {
  body { padding-bottom: 120px; }
  nav {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: min(720px, 100%);
    border-radius: 18px 18px 0 0;
  }
  nav button { font-size: 13px; }
  .card { padding: 20px; }
}

@media (prefers-reduced-motion: no-preference) {
  button, .card {
    transition: background .15s ease,
                border-color .15s ease;
  }
}

/* Design pass: bolder hierarchy, depth and clearer actions */
h1 { font-size: 28px; font-weight: 800; letter-spacing: -0.8px; }
h2 { font-size: 21px; font-weight: 750; letter-spacing: -0.5px; margin-top: 26px; }

.card {
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}

.hero {
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.25);
}

button {
  min-height: 46px;
  border-radius: 12px;
  font-weight: 700;
  letter-spacing: 0.1px;
}

body nav {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 16, 30, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 8px 4px 12px;
}

body nav button.active {
  background: transparent;
  color: var(--accent, #8f7dff);
}

/* Footer disclaimer and privacy link read as fine print */
body footer { font-size: 11px; line-height: 1.5; opacity: 0.7; margin-top: 32px; }
body footer p { font-size: 11px; line-height: 1.5; margin: 6px 0; }
body footer a { font-size: 11px; }

/* Keep the text size row and footer in the same centered column as the content */
.size-row, body footer {
  width: 100%;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}
body footer { padding: 0; margin-top: 32px; }

/* Five tabs spread evenly across the bar */
body nav { grid-template-columns: repeat(5, minmax(0, 1fr)); }

/* Text size pills stay compact */
.size-row button { min-height: 0; height: 30px; padding: 0 12px; border-radius: 999px; }
.size-row { margin-bottom: 18px; }