/* =========================================================
   base.css — shared styles used on EVERY page
   ---------------------------------------------------------
   1. Color + spacing tokens (change the whole look here)
   2. Reset + page background
   3. Header / top-right navigation
   4. Buttons, links, form bits
   5. Footer
   6. Small helpers (visually-hidden, back link, etc.)
   7. Reduced motion
   ========================================================= */


/* ---------- 1. TOKENS ----------
   Tokens are named variables. Change a value here and it
   updates everywhere it's used. */
:root {
  /* Blues — backgrounds, from deepest to lightest */
  --navy-950: #0c1626;
  --navy-900: #111f33;
  --navy-800: #182a43;
  --blue-700: #24395a;
  --blue-600: #34507a;
  --dusty-400: #7f98b8;
  --dusty-300: #a8bbd3;

  /* Creams — text and warm accents */
  --cream-50:  #fbf6ec;
  --cream-100: #f4ead8;
  --cream-300: #e3d2b4;
  --honey:     #e8c48f;   /* warm glow — use sparingly */

  /* What things are FOR (use these in your CSS) */
  --text:        var(--cream-100);
  --text-muted:  rgba(244, 234, 216, 0.72);
  --text-faint:  rgba(244, 234, 216, 0.5);
  --line:        rgba(244, 234, 216, 0.14);
  --surface:     rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --focus:       var(--honey);

  /* Type */
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Spacing scale (lots of breathing room) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  /* Shapes + motion */
  --radius: 20px;
  --radius-pill: 999px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);   /* soft in-and-out */
  --slow: 600ms;

  --max-width: 980px;
  --reading-width: 620px;

  /* Tells the browser this is a dark site, so built-in bits
     (scrollbars, form controls) match and phones don't
     "auto-darken" our colors */
  color-scheme: dark;
}


/* ---------- 2. RESET + BACKGROUND ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

/* Anything with the "hidden" attribute stays hidden, even if
   another rule gives it display:flex or display:block */
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--navy-900);
  -webkit-font-smoothing: antialiased;
  /* Every page gently fades in, like opening your eyes */
  animation: page-in 900ms var(--ease) both;
}

/* The background lives on a fixed layer behind everything,
   so it doesn't jump around on phones when you scroll. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    /* a faint warm glow near the top — the "cozy" part */
    radial-gradient(60% 45% at 50% 0%, rgba(232, 196, 143, 0.10), transparent 70%),
    /* deep navy fading down into dusty blue */
    linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 45%, var(--navy-800) 80%, var(--blue-700) 130%);
}

@keyframes page-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

h1, h2, h3 {
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}
h1 { font-size: clamp(1.75rem, 5vw, 2.4rem); font-weight: 400; }
h2 { font-size: 1.35rem; }

p { margin: 0 0 var(--space-2); }

img, svg { display: block; max-width: 100%; }

a { color: var(--cream-50); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--honey); }

/* One clear, warm focus ring for keyboard users everywhere */
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
  border-radius: 6px;
}


/* ---------- 3. HEADER + NAV ---------- */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3) var(--space-2);
}

.brand {
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--cream-100);
  text-decoration: none;
}
.brand:hover { color: var(--cream-50); }

.site-nav ul {
  display: flex;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  position: relative;
  display: inline-block;
  padding: 0.25rem 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--slow) var(--ease);
}
.site-nav a:hover { color: var(--cream-50); }

/* The current page gets a tiny warm dot underneath */
.site-nav a[aria-current="page"] { color: var(--cream-50); }
.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -4px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--honey);
  transform: translateX(-50%);
}

@media (max-width: 420px) {
  .site-nav ul { gap: var(--space-2); }
  .site-nav a { font-size: 0.9rem; }
}


/* ---------- MAIN CONTENT AREA ---------- */
main {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3) var(--space-2) var(--space-5);
}

/* A narrower, centered column for activity pages */
.page-narrow {
  max-width: var(--reading-width);
  text-align: center;
}

.lede {
  color: var(--text-muted);
  max-width: 34em;
  margin-left: auto;
  margin-right: auto;
}


/* ---------- 4. BUTTONS + FORM BITS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  min-height: 44px;              /* big enough for thumbs */
  padding: 0.6rem 1.4rem;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--slow) var(--ease), border-color var(--slow) var(--ease), color var(--slow) var(--ease);
}
.btn:hover { background: var(--surface-hover); border-color: rgba(244, 234, 216, 0.3); color: var(--cream-50); }

/* The main action on a page: cream button, navy text */
.btn-primary {
  color: var(--navy-900);
  background: var(--cream-100);
  border-color: var(--cream-100);
}
.btn-primary:hover { color: var(--navy-900); background: var(--cream-50); border-color: var(--cream-50); }

.btn:disabled { opacity: 0.45; cursor: default; }

/* A row of buttons */
.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

/* Quiet on/off switch built from a normal checkbox
   (still a real checkbox, so keyboards + screen readers work) */
.switch {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: 0.95rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}
.switch input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 40px;
  height: 22px;
  margin: 0;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: background var(--slow) var(--ease);
}
.switch input::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cream-100);
  transition: transform 400ms var(--ease);
}
.switch input:checked { background: var(--blue-600); }
.switch input:checked::after { transform: translateX(18px); }


/* A soft card used for writing areas, steps, etc. */
.panel {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: 0 20px 50px rgba(5, 10, 20, 0.25);
}

/* Single-line text box */
.field {
  width: 100%;
  min-height: 48px;
  padding: 0.7rem 1.1rem;
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  transition: border-color var(--slow) var(--ease), background var(--slow) var(--ease);
}
.field::placeholder { color: var(--text-faint); }
.field:hover { border-color: rgba(244, 234, 216, 0.28); }
.field:focus { outline: none; border-color: var(--honey); background: rgba(255, 255, 255, 0.07); }

/* A button that looks like a quiet underlined link */
.text-btn {
  min-height: 32px;
  padding: 0;
  font: inherit;
  color: var(--text-muted);
  background: none;
  border: 0;
  text-decoration: underline;
  text-decoration-color: rgba(244, 234, 216, 0.3);
  text-underline-offset: 0.25em;
  cursor: pointer;
}
.text-btn:hover { color: var(--cream-50); text-decoration-color: currentColor; }

/* Small quiet status line under an activity */
.status {
  min-height: 1.6em;
  margin-top: var(--space-2);
  font-size: 0.95rem;
  color: var(--text-muted);
}


/* ---------- 5. FOOTER ---------- */
.site-footer {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-4) var(--space-2) var(--space-3);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-faint);
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1) var(--space-3);
  margin-bottom: var(--space-1);
}
.site-footer a { color: var(--text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--cream-50); text-decoration: underline; }
.site-footer p { margin: 0; }


/* ---------- 6. HELPERS ---------- */

/* Hides text visually but keeps it for screen readers */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* "Skip to content" link — appears only when tabbed to */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -100px;
  padding: 0.5rem 1rem;
  background: var(--cream-100);
  color: var(--navy-900);
  border-radius: var(--radius-pill);
  z-index: 10;
}
.skip-link:focus { top: var(--space-2); }

/* Quiet "back home" link on activity pages */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-bottom: var(--space-4);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--slow) var(--ease);
}
.back-link:hover { color: var(--cream-50); }
.back-link span { transition: transform var(--slow) var(--ease); }
.back-link:hover span { transform: translateX(-3px); }


/* ---------- 7. REDUCED MOTION ----------
   If someone has "reduce motion" turned on in their phone or
   computer settings, switch off all animations and slides. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}