/* =========================
   Health Companion — UI Theme
   Chic + Nurturing (Pink)
   — CSS-only; preserves selectors used by app.js
   ========================= */

/* ---------- Design tokens ---------- */
:root{
  /* Core brand (keep your original) */
  --brand: #ef4878;           /* used for links/accents */
  --brand-strong: #d61c62;    /* solid button tone (AA vs white) */
  --brand-stronger: #c81759;  /* deeper tone for gradients/active */

  /* Tonal pinks for soft surfaces */
  --pink-50:  #fff6f9;  /* very light surface */
  --pink-100: #fdebf2;  /* hover/chip bg */
  --pink-200: #f9d8e6;  /* subtle borders */

  /* Neutrals */
  --bg: #ffffff;        /* app background */
  --surface: #fafafa;   /* panel/bubble base */
  --text: #1f2937;      /* main text */
  --muted: #4b5563;     /* secondary text */
  --border: #e7e7ea;    /* default border */

  /* Semantic */
  --alert: #b10e1e;     /* error/warn text or border */

  /* Chat roles (kept from your original names for safety) */
  --header-bg: #f4b8c9; /* soft header wash */
  --bot-bg: #ffffff;
  --bot-border: #eee;
  --user-bg: var(--pink-50);  /* softened from solid pink */
  --user-ink: var(--text);

  /* Radii, spacing, shadows */
  --radius: 14px;
  --gap: 12px;
  --shadow-1: 0 1px 2px rgba(0,0,0,.04);
  --shadow-2: 0 6px 16px rgba(0,0,0,.08);
}

/* ---------- Base / Reset ---------- */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Helpful utility */
.visually-hidden {
  position:absolute !important; width:1px; height:1px; margin:-1px; padding:0;
  overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0;
}

/* ---------- App layout (keep existing names) ---------- */
.app {
  max-width: 920px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--gap);
  min-height: 100dvh;
}

/* Header — softer, nurturing */
header {
  background: linear-gradient(180deg, var(--pink-100), #fff);
  color: var(--text);
  padding: 14px 20px;
  border: 1px solid var(--pink-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/*---------------Progress bar ----------------*/

#model-status {
  font-size: 0.9rem;
  margin-bottom: 8px;
}

/*#progress-container {
  width: 100%;
  height: 6px;
  background: #eee;
  border-radius: 999px;
  overflow: hidden;
}*/

#model-progress {
  height: 100%;
  width: 0%;
  background: #4caf50; /* or your accent color */
  transition: width 0.2s ease;
}



/* ---------- Chat area ---------- */
.chat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

/* Scrollbar (subtle) */
.chat::-webkit-scrollbar { width: 10px; }
.chat::-webkit-scrollbar-thumb {
  background: #e9e9ed;
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: content-box;
}

/* ---------- Messages ---------- */
.msg {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-1);
  background: #fff;
  color: var(--text);
  overflow-wrap: anywhere;    /* long URLs safe */
  word-break: break-word;
}

/* Bot bubble */
.msg.bot {
  background: var(--bot-bg);
  border-color: var(--bot-border);
  align-self: flex-start;
}

/* User bubble (now light, calm pink with dark text) */
.msg.user {
  background: var(--user-bg);
  border-color: var(--pink-200);
  color: var(--user-ink);
  align-self: flex-end;
}

/* Optional semantic bubbles (safe additions) */
.msg.notice {
  background: #fffef5;
  border-color: #f3e7aa;
}
.msg.error {
  background: #fff6f6;
  border-color: #ffd3d3;
  color: var(--alert);
}

/* Rich content inside messages */
.msg p { margin: 0 0 8px; }
.msg p:last-child { margin-bottom: 0; }
.msg a { color: var(--brand); text-underline-offset: 2px; }
.msg code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: .95em;
  background: #f6f7f9;
  border: 1px solid #ececf1;
  border-radius: 8px;
  padding: 0 6px;
}
.msg pre {
  background: #f6f7f9; border: 1px solid #ececf1; border-radius: 10px;
  padding: 12px; overflow: auto;
}

/* ---------- Composer (input row) ---------- */
.composer {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 10px;
  display: grid;
  grid-template-columns: 10fr 1fr 1fr;   /* input (more than half) + model select + send btn (equal) */
  gap: 10px;
}


header.hero {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 4px;
  position: relative;

  width: 100%;
  max-width: 100%;
  margin: 3rem auto 2rem;
  padding: 20px 24px;

  background: linear-gradient(180deg, var(--pink-100), #fff);
  border: 1px solid var(--pink-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.btn-signout {
  position: absolute;
  top: 14px;
  right: 16px;
  padding: 0 14px;
  height: 36px;
  min-width: unset;
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-strong);
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--brand) 40%, #ddd);
  border-radius: 999px;
}
.btn-signout:hover {
  background: color-mix(in srgb, var(--pink-100) 80%, #ffffff);
  border-color: var(--brand);
}
.btn-signout:active { transform: translateY(1px); }



header.hero .brand { margin: 0; }
header.hero .tagline { margin: 0; }
header.hero .tagline:first-of-type { margin-bottom: 12px; }
header.hero .description + .tagline { margin-top: 16px; }

header.hero .description { margin: 0; max-width: 100%; margin-bottom: 8px; }
header.hero .description:last-of-type { margin-bottom: 0; }
header.hero .tagline2 { margin: 0; }
/*header.hero { width: 100%; }*/


.brand {
  font-size: 2.4rem;
  font-weight: 600;
  color: #0a0b0d;
  margin-bottom: 0.25rem;
}

.tagline {
  font-size: 1.05rem;
  font-weight: 500;
  color: #374151; /* soft neutral */
  margin-bottom: 1rem;
}

.tagline2 {
  font-size: 1.05rem;
  font-weight: 500;
  color: #374151; /* soft neutral */
  margin-bottom: 1rem;
}

.description {
  font-size: 1rem;
  line-height: 1.6;
  color: #374151;
  max-width: 40ch; /* keeps it calm and readable */
}


/* Text input / textarea */
#msg {
  resize: none;
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  outline: none;
  background: #fff;
}
#msg::placeholder { color: #97a0ab; }

/* Model selector dropdown */
#model-select {
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font: inherit;
  color: var(--text);
  background: #fff;
  cursor: pointer;
  outline: none;
}

#model-select:hover {
  border-color: #d0d0d5;
}

#model-select:focus-visible {
  outline: 3px solid color-mix(in oklab, var(--brand-strong) 60%, #ffffff);
  outline-offset: 2px;
}

/* ---------- Buttons ---------- */
button {
  height: 44px;               /* comfy target */
  min-width: 44px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5ch;
}

/* Primary send button (keeps #send id) */
#send{
  padding: 0 16px;
  color: #fff;
  background: linear-gradient(180deg, var(--brand-strong), var(--brand-stronger));
  box-shadow: 0 6px 16px rgba(200,23,89,.18), 0 2px 4px rgba(0,0,0,.04);
}
#send:hover{ filter: brightness(1.03); }
#send:active{ transform: translateY(1px); }

/* Secondary/ghost buttons if you use them */
button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
button.ghost:hover { background: #f8f8fa; }

/* ---------- Focus & accessibility ---------- */
:where(button, .chip, a, input, textarea):focus-visible{
  outline: 3px solid color-mix(in oklab, var(--brand-strong) 60%, #ffffff);
  outline-offset: 2px;
}

/* ---------- Topic chips (keep existing .chip) ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip{
  background: color-mix(in srgb, var(--pink-50) 80%, #ffffff);
  border: 1px solid color-mix(in srgb, var(--pink-200) 70%, #dddddd);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  line-height: 1;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: .5ch;
  box-shadow: none;
}
.chip:hover{ background: var(--pink-100); }
.chip:active{ transform: translateY(1px); }
.chip[aria-selected="true"]{
  background: color-mix(in srgb, var(--brand) 14%, #fff);
  border-color: color-mix(in srgb, var(--brand) 40%, #ddd);
}

/* ---------- Images & media ---------- */
img, video { max-width: 100%; height: auto; border-radius: 10px; }

/* ---------- Links (outside messages) ---------- */
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Motion safety ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{ animation:none !important; transition:none !important; scroll-behavior: auto !important; }
}

/* ---------- Responsive tweaks ---------- */
@media (max-width: 480px){
  .app { padding: 12px; }
  .chat { padding: 10px; gap: 12px; }
  .msg { max-width: 90%; }
  header { padding: 12px 16px; }
}

@media (max-width: 650px){
    .composer {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
}

/* ---------- Optional helper: system badges ---------- */
.badge {
  display:inline-block; padding: 4px 10px; border-radius: 999px;
  font-size: 12px; line-height: 1; border:1px solid var(--border); background:#fff;
}
.badge.pink { background: var(--pink-50); border-color: var(--pink-200); }