/* =============================================================================
   Elysoir — Design System  ·  "Calm Professional"
   -----------------------------------------------------------------------------
   A bespoke, accessibility-first UI for an AI companion whose real audience is
   older and non-technical users. Priorities, in order:
     1. Legibility   — 17px base, generous line-height, AA+ contrast everywhere.
     2. Calm         — cool off-white canvas, one confident teal accent, soft
                        layered shadows instead of glows, restrained motion.
     3. Trust        — crisp humanist type (Plus Jakarta Sans + Inter), clear
                        focus states, predictable interactions.
   Fonts are loaded via <link> in index.html.
   ========================================================================== */

/* ----------------------------------------------------------------------------
   1. Design tokens
   ------------------------------------------------------------------------- */
:root {
  /* Brand + neutrals */
  --bg:            #F7F8FA;   /* page canvas (cool off-white)            */
  --bg-sunken:     #EAEDF2;   /* recessed areas / stage edges            */
  --surface:       #FFFFFF;   /* cards, panels                           */
  --surface-2:     #F2F4F7;   /* inset fields, subtle fills              */
  --text:          #1B2330;   /* slate ink — primary copy (AAA on bg)    */
  --text-soft:     #3D4757;   /* secondary copy                          */
  --text-mute:     #5B6472;   /* tertiary / hints (AA on white)          */

  /* Accent (deep teal). -strong is darkened for AA text/fills on white. */
  --accent:        #2A7E8B;
  --accent-strong: #1B6573;
  --accent-press:  #155561;
  --accent-soft:   #E4EFF1;   /* tinted backgrounds                      */
  --accent-2:      #5B6472;   /* muted slate secondary accent            */

  /* Status */
  --danger:        #C2453D;  --danger-soft:  #FBEAE8;
  --warn:          #8A5A12;  --warn-soft:    #FBF1DC;
  --success:       #1E7A4D;  --success-soft: #E4F4EB;

  /* Lines */
  --border:        #E2E6EC;
  --border-strong: #CDD3DC;

  /* Focus ring (used with focus-visible) */
  --ring:          0 0 0 3px rgba(42, 126, 139, 0.35);

  /* Typography */
  --font-display: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --font-body:    "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --text-xs:   0.8125rem;  /* ~13px */
  --text-sm:   0.90625rem; /* ~14.5px */
  --text-base: 1.0625rem;  /* 17px — body baseline */
  --text-md:   1.1875rem;  /* 19px */
  --text-lg:   1.375rem;   /* 22px */
  --text-xl:   1.75rem;    /* 28px */
  --text-2xl:  2.25rem;    /* 36px */
  --text-3xl:  2.875rem;   /* 46px */
  --leading:   1.6;

  /* Spacing scale (4px base) */
  --space-1: 0.25rem;  --space-2: 0.5rem;   --space-3: 0.75rem;
  --space-4: 1rem;     --space-5: 1.5rem;   --space-6: 2rem;
  --space-7: 3rem;     --space-8: 4rem;

  /* Radius */
  --r-sm: 8px;  --r-md: 12px;  --r-lg: 16px;  --r-xl: 24px;  --r-pill: 999px;

  /* Soft, layered shadows (no neon) */
  --shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.10);
  --shadow-md: 0 4px 8px -2px rgba(16,24,40,.10), 0 2px 4px -2px rgba(16,24,40,.06);
  --shadow-lg: 0 12px 24px -6px rgba(16,24,40,.12), 0 4px 8px -4px rgba(16,24,40,.08);
  --shadow-xl: 0 24px 48px -12px rgba(16,24,40,.18);

  /* Motion */
  --dur-fast: 140ms;  --dur: 220ms;  --dur-slow: 380ms;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* Respect users who prefer less motion — neutralize all transitions/animations. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ----------------------------------------------------------------------------
   2. Base / reset
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;                 /* the 3D stage owns the viewport */
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading);
  color: var(--text);
  /* Soft "studio" stage: a gentle highlight where the character stands,
     over a calm vertical gradient. The WebGL canvas (alpha) sits on top. */
  background:
    radial-gradient(120% 90% at 50% 88%, rgba(255,255,255,.95) 0%, rgba(255,255,255,0) 55%),
    radial-gradient(80% 60% at 78% 12%, rgba(42,126,139,.06) 0%, rgba(42,126,139,0) 60%),
    linear-gradient(180deg, var(--bg-sunken) 0%, var(--bg) 42%, var(--bg-sunken) 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Three.js renderer canvas — full-bleed background layer. */
body > canvas {
  position: fixed !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  z-index: 0 !important;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; margin: 0; }

button { font-family: inherit; }

::selection { background: var(--accent-soft); color: var(--accent-press); }

/* Keyboard focus is always visible; mouse focus is not noisy. */
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: var(--r-sm); }

/* Calm, slim scrollbars for transcript areas. */
.el-scroll { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.el-scroll::-webkit-scrollbar { width: 10px; }
.el-scroll::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--r-pill); border: 3px solid transparent; background-clip: content-box; }
.el-scroll::-webkit-scrollbar-thumb:hover { background: var(--text-mute); }

/* Screen-reader-only helper. */
.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;
}

/* No !important: the splash uses .hidden for an opacity fade (its inline display
   stays set during the transition), while confirm-btn relies on .hidden to disappear. */
.is-hidden, .hidden { display: none; }

/* ----------------------------------------------------------------------------
   3. Buttons
   ------------------------------------------------------------------------- */
.el-btn {
  --btn-bg: var(--accent);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: 0.75rem 1.25rem;
  font-size: var(--text-base); font-weight: 600; letter-spacing: .01em;
  color: var(--btn-fg); background: var(--btn-bg);
  border: 1px solid transparent; border-radius: var(--r-md);
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease),
              box-shadow var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              filter var(--dur) var(--ease);
}
.el-btn:hover { filter: brightness(1.04); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.el-btn:active { transform: translateY(0); filter: brightness(.96); box-shadow: var(--shadow-sm); }
.el-btn:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; filter: none; }

.el-btn--primary { --btn-bg: var(--accent); }
.el-btn--primary:active { background: var(--accent-press); }
.el-btn--block { width: 100%; }
.el-btn--lg { padding: 0.95rem 1.6rem; font-size: var(--text-md); border-radius: var(--r-lg); }

.el-btn--ghost {
  --btn-bg: transparent; --btn-fg: var(--accent-strong);
  border-color: var(--border-strong);
}
.el-btn--ghost:hover { background: var(--accent-soft); border-color: var(--accent); filter: none; }

.el-btn--subtle {
  --btn-bg: var(--surface-2); --btn-fg: var(--text-soft);
  border-color: var(--border);
}
.el-btn--subtle:hover { background: #E9ECF1; filter: none; }

.el-btn--danger-ghost { --btn-bg: transparent; --btn-fg: var(--danger); border-color: transparent; }
.el-btn--danger-ghost:hover { background: var(--danger-soft); filter: none; }

/* Inline loading spinner shown while a button is busy. */
.el-btn[data-loading="true"] { color: transparent !important; position: relative; pointer-events: none; }
.el-btn[data-loading="true"]::after {
  content: ""; position: absolute; width: 1.1em; height: 1.1em;
  border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%;
  color: #fff; animation: el-spin .7s linear infinite;
}
.el-btn--ghost[data-loading="true"]::after,
.el-btn--subtle[data-loading="true"]::after { color: var(--accent-strong); }
@keyframes el-spin { to { transform: rotate(360deg); } }

/* ----------------------------------------------------------------------------
   4. Forms
   ------------------------------------------------------------------------- */
.el-field { margin-bottom: var(--space-4); }
.el-field > label {
  display: block; margin-bottom: var(--space-2);
  font-size: var(--text-sm); font-weight: 600; color: var(--text-soft); letter-spacing: .01em;
}
.el-input {
  width: 100%; box-sizing: border-box;
  padding: 0.8rem 0.95rem; font-size: var(--text-base); font-family: inherit;
  color: var(--text); background: var(--surface);
  border: 1.5px solid var(--border-strong); border-radius: var(--r-md);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.el-input::placeholder { color: var(--text-mute); }
.el-input:hover { border-color: var(--accent-2); }
.el-input:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.el-input[aria-invalid="true"] { border-color: var(--danger); }
.el-input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(194,69,61,.25); }

/* Password field: input + show/hide toggle sharing one rounded frame. */
.el-pw { position: relative; }
.el-pw .el-input { padding-right: 3rem; }
.el-pw-toggle {
  position: absolute; top: 50%; right: 0.4rem; transform: translateY(-50%);
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; padding: 0;
  background: transparent; border: none; border-radius: var(--r-sm);
  color: var(--text-mute); cursor: pointer; font-size: 1.1rem;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.el-pw-toggle:hover { color: var(--accent-strong); background: var(--accent-soft); }

.el-help { margin: var(--space-2) 0 0; font-size: var(--text-sm); color: var(--text-mute); }

/* ----------------------------------------------------------------------------
   5. Auth screen — split layout (brand panel + form card)
   ------------------------------------------------------------------------- */
#auth-screen.el-auth {
  position: fixed; inset: 0; z-index: 3000;
  display: grid; grid-template-columns: 1.05fr 1fr;
  background: var(--bg);
  font-family: var(--font-body);
}

/* Left: brand & value proposition over a calm teal gradient. */
.el-auth__brand {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; justify-content: center;
  gap: var(--space-5); padding: clamp(2rem, 6vw, 5rem);
  color: #EAF3F4;
  background:
    radial-gradient(90% 70% at 15% 10%, rgba(255,255,255,.12) 0%, rgba(255,255,255,0) 55%),
    linear-gradient(150deg, #1B6573 0%, #225E6B 45%, #173F4B 100%);
}
.el-auth__brand::after {           /* soft floating orb for depth, not glow */
  content: ""; position: absolute; right: -12%; bottom: -18%;
  width: 60%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.16), rgba(255,255,255,0) 70%);
  pointer-events: none;
}
.el-brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.25rem; height: 3.25rem; border-radius: var(--r-lg);
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.25);
  font-size: 1.6rem;
}
.el-auth__brand h2 {
  font-size: clamp(2rem, 3.4vw, var(--text-3xl)); font-weight: 800; letter-spacing: -.01em; color: #fff;
}
.el-auth__brand .el-lead { font-size: var(--text-md); color: #CFE4E6; max-width: 36ch; }
.el-value { list-style: none; margin: var(--space-3) 0 0; padding: 0; display: grid; gap: var(--space-4); max-width: 40ch; }
.el-value li { display: flex; gap: var(--space-3); align-items: flex-start; font-size: var(--text-base); color: #E7F1F2; }
.el-value .el-value__ic {
  flex: none; width: 1.9rem; height: 1.9rem; border-radius: var(--r-pill);
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.16); font-size: 1rem;
}

/* Right: the form. */
.el-auth__form-side {
  display: flex; align-items: center; justify-content: center;
  padding: clamp(1.5rem, 4vw, 3.5rem); overflow-y: auto;
}
.el-auth__card { width: 100%; max-width: 27rem; }

.el-tabs {
  position: relative; display: grid; grid-template-columns: 1fr 1fr;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--r-pill); padding: 4px; margin-bottom: var(--space-5);
}
.el-tab {
  position: relative; z-index: 1; border: none; background: transparent;
  padding: 0.6rem 1rem; border-radius: var(--r-pill);
  font-size: var(--text-sm); font-weight: 700; color: var(--text-mute);
  cursor: pointer; transition: color var(--dur) var(--ease);
}
.el-tab.active { color: var(--accent-strong); background: var(--surface); box-shadow: var(--shadow-sm); }
.el-tab:hover:not(.active) { color: var(--text-soft); }

.el-auth__title { font-size: var(--text-xl); margin-bottom: var(--space-2); color: var(--text); }
.el-auth__sub { margin: 0 0 var(--space-5); color: var(--text-mute); font-size: var(--text-base); }

/* JS sets className to exactly "auth-msg" / "auth-msg success" / "auth-msg warn". */
.auth-msg {
  min-height: 1.25rem; margin: 0 0 var(--space-4);
  font-size: var(--text-sm); line-height: 1.5; color: var(--danger);
}
.auth-msg:empty { margin: 0; min-height: 0; }
.auth-msg.success { color: var(--success); }
.auth-msg.warn    { color: var(--warn); }

.auth-forgot { text-align: right; margin-top: calc(-1 * var(--space-2)); margin-bottom: var(--space-3); }
.auth-forgot a { color: var(--accent-strong); font-size: var(--text-sm); font-weight: 600; text-decoration: none; }
.auth-forgot a:hover { text-decoration: underline; }

.el-auth__toggle { margin-top: var(--space-5); text-align: center; }
.el-auth__toggle button {
  background: none; border: none; cursor: pointer;
  color: var(--accent-strong); font-size: var(--text-sm); font-weight: 600; font-family: inherit;
}
.el-auth__toggle button:hover { text-decoration: underline; }

#auth-loading { margin-top: var(--space-4); text-align: center; color: var(--text-mute); font-size: var(--text-sm); }

/* ----------------------------------------------------------------------------
   6. Verify-email gate
   ------------------------------------------------------------------------- */
#verify-email-gate {
  position: fixed; inset: 0; z-index: 3000; display: none;
  align-items: center; justify-content: center; padding: var(--space-5);
  background:
    radial-gradient(80% 60% at 50% 0%, var(--accent-soft) 0%, rgba(228,239,241,0) 60%),
    var(--bg);
  font-family: var(--font-body);
}
#verify-email-gate.visible { display: flex; }
.verify-gate-box {
  width: 100%; max-width: 30rem; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: clamp(1.75rem, 4vw, 2.75rem);
  box-shadow: var(--shadow-lg);
}
.verify-gate-ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.5rem; height: 3.5rem; margin-bottom: var(--space-4);
  border-radius: var(--r-pill); background: var(--accent-soft); color: var(--accent-strong); font-size: 1.6rem;
}
.verify-gate-title { font-size: var(--text-lg); font-weight: 700; color: var(--text); margin-bottom: var(--space-3); }
.verify-gate-text { color: var(--text-soft); font-size: var(--text-base); line-height: 1.7; margin-bottom: var(--space-5); }
.verify-gate-email { display: inline-block; margin: var(--space-2) 0; color: var(--accent-strong); font-weight: 700; }
.verify-gate-btns { display: grid; gap: var(--space-3); }
.verify-gate-msg { margin-top: var(--space-3); font-size: var(--text-sm); min-height: 1.2rem; }
.verify-gate-msg.success { color: var(--success); }
.verify-gate-msg.error   { color: var(--danger); }

/* ----------------------------------------------------------------------------
   7. Splash / welcome
   ------------------------------------------------------------------------- */
#splash-screen {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--space-5); text-align: center; padding: var(--space-5);
  background:
    radial-gradient(70% 55% at 50% 38%, rgba(255,255,255,.9) 0%, rgba(255,255,255,0) 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-sunken) 100%);
  opacity: 1; transition: opacity var(--dur-slow) var(--ease);
}
#splash-screen.hidden { opacity: 0; pointer-events: none; }
.splash-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 4.5rem; height: 4.5rem; border-radius: var(--r-xl);
  background: linear-gradient(150deg, var(--accent) 0%, var(--accent-press) 100%);
  color: #fff; font-size: 2.2rem; box-shadow: var(--shadow-lg);
  animation: el-rise var(--dur-slow) var(--ease) both;
}
.splash-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.5rem, 7vw, var(--text-3xl)); letter-spacing: .12em;
  color: var(--text); margin: 0;
  animation: el-rise var(--dur-slow) 60ms var(--ease) both;
}
.splash-subtitle {
  font-size: var(--text-md); color: var(--text-mute); margin: 0; letter-spacing: .02em;
  animation: el-rise var(--dur-slow) 120ms var(--ease) both;
}
@keyframes el-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.get-started-btn {
  margin-top: var(--space-3);
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 1rem 2.25rem; font-family: var(--font-display);
  font-size: var(--text-md); font-weight: 700; letter-spacing: .02em;
  color: #fff; background: linear-gradient(150deg, var(--accent) 0%, var(--accent-press) 100%);
  border: none; border-radius: var(--r-pill); cursor: pointer;
  box-shadow: var(--shadow-md); animation: el-rise var(--dur-slow) 180ms var(--ease) both;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease), filter var(--dur) var(--ease);
}
.get-started-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); filter: brightness(1.05); }
.get-started-btn:active { transform: translateY(0); }

/* ----------------------------------------------------------------------------
   8. Character selector  (pointer-events: none lets you orbit the model behind)
   ------------------------------------------------------------------------- */
#character-selector {
  position: fixed; inset: 0; z-index: 1000; display: none;
  flex-direction: column; align-items: center; justify-content: flex-start;
  gap: var(--space-4); padding-top: var(--space-6);
  pointer-events: none;
  background: linear-gradient(180deg, rgba(247,248,250,.86) 0%, rgba(247,248,250,0) 32%);
}
#character-selector > * { pointer-events: auto; }
.selector-title {
  font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700;
  color: var(--text); letter-spacing: .01em; text-align: center;
}
.character-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-4); width: min(90%, 760px); max-height: 44vh; overflow-y: auto;
  padding: var(--space-5); border-radius: var(--r-xl);
  background: rgba(255,255,255,.82); backdrop-filter: blur(8px);
  border: 1px solid var(--border); box-shadow: var(--shadow-lg);
}
.character-card {
  position: relative; padding: var(--space-5) var(--space-4); cursor: pointer; text-align: center;
  background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--r-lg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.character-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow-md); }
.character-card.selected { border-color: var(--accent); background: var(--accent-soft); box-shadow: var(--shadow-md); }
.character-card.selected::after {
  content: "✓"; position: absolute; top: 8px; right: 10px;
  width: 1.5rem; height: 1.5rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; font-size: .85rem; font-weight: 700;
}
.character-name { font-size: var(--text-base); font-weight: 700; color: var(--text); }
.character-type { margin-top: var(--space-1); font-size: var(--text-xs); color: var(--accent-strong); text-transform: uppercase; letter-spacing: .14em; font-weight: 700; }

#confirm-btn {
  padding: 0.85rem 2rem; font-family: var(--font-display); font-size: var(--text-base); font-weight: 700;
  color: #fff; background: var(--accent); border: none; border-radius: var(--r-pill);
  cursor: pointer; box-shadow: var(--shadow-md);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease), filter var(--dur) var(--ease);
}
#confirm-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); filter: brightness(1.05); }
.preview-hint { font-size: var(--text-sm); color: var(--text-mute); text-align: center; }
.loading-text { font-size: var(--text-sm); color: var(--accent-strong); }

/* ----------------------------------------------------------------------------
   9. Main assistant panel  (#ui)
   ------------------------------------------------------------------------- */
#ui {
  position: fixed; left: var(--space-5); bottom: var(--space-5); z-index: 100;
  width: 384px; max-width: calc(100vw - 2 * var(--space-5));
  max-height: calc(100vh - 2 * var(--space-5));
  display: flex; flex-direction: column;
  background: rgba(255,255,255,.92); backdrop-filter: blur(14px) saturate(1.1);
  border: 1px solid var(--border); border-radius: var(--r-xl);
  box-shadow: var(--shadow-xl);
  pointer-events: none;                 /* empty areas pass clicks to the 3D stage */
  overflow: hidden;
}
#ui * { pointer-events: auto; }

.el-panel__head {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--border);
}
.el-panel__avatar {
  flex: none; width: 2.5rem; height: 2.5rem; border-radius: var(--r-pill);
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, var(--accent) 0%, var(--accent-press) 100%);
  color: #fff; font-size: 1.15rem;
}
.el-panel__id { min-width: 0; flex: 1; }
.el-panel__name { font-family: var(--font-display); font-weight: 700; font-size: var(--text-base); color: var(--text); display: flex; align-items: center; gap: .4rem; }
.el-status-dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }
#auth-status { font-size: var(--text-xs); color: var(--text-mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#auth-status #auth-status-email { color: var(--text-soft); font-weight: 600; }

/* Icon button used in the panel header (logout, change character). */
.el-iconbtn {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; padding: 0;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-md);
  color: var(--text-soft); cursor: pointer; font-size: 1.05rem;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.el-iconbtn:hover { background: var(--accent-soft); color: var(--accent-strong); border-color: var(--accent); }

/* Usage chip / meter. refreshAccountInfo() injects:
   <span class="tier-name">free</span> • 3/100 messages this month */
#account-tier {
  margin: var(--space-3) var(--space-4) 0;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs); color: var(--text-mute);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-md);
}
#account-tier:empty { display: none; }
#account-tier .tier-name {
  color: var(--accent-strong); font-weight: 700; text-transform: capitalize;
  padding: 1px 8px; background: var(--accent-soft); border-radius: var(--r-pill); margin-right: 4px;
}

/* Verify-email reminder banner inside the panel. */
.auth-verify-banner {
  display: flex; align-items: center; gap: var(--space-3); justify-content: space-between;
  margin: var(--space-3) var(--space-4) 0;
  padding: var(--space-3); font-size: var(--text-sm); line-height: 1.4;
  color: var(--warn); background: var(--warn-soft); border: 1px solid #EBD7A6; border-radius: var(--r-md);
}
.auth-verify-banner button { flex: none; padding: .4rem .7rem; font-size: var(--text-xs); font-weight: 700; color: #fff; background: var(--warn); border: none; border-radius: var(--r-sm); cursor: pointer; }

/* Conversation transcript. renderChatHistory() emits .chat-msg with <b>Sender:</b>. */
#msg-box {
  flex: 1 1 auto; min-height: 110px; max-height: 320px; overflow-y: auto;
  margin: var(--space-4) 0; padding: 0 var(--space-4);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.chat-msg {
  font-size: var(--text-base); line-height: 1.6; color: var(--text); word-wrap: break-word;
  padding: var(--space-3); border-radius: var(--r-md); background: var(--surface-2);
  border: 1px solid var(--border);
}
.chat-msg b { display: block; margin-bottom: 2px; font-size: var(--text-xs); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-strong); }
.chat-msg a { color: var(--accent-strong); font-weight: 600; }

/* Composer. */
#chat-input-wrap { display: flex; gap: var(--space-2); padding: 0 var(--space-4); align-items: flex-end; }
#msg-input {
  flex: 1; resize: none; max-height: 120px;
  padding: 0.7rem 0.9rem; font-size: var(--text-base); font-family: inherit; line-height: 1.5;
  color: var(--text); background: var(--surface); border: 1.5px solid var(--border-strong); border-radius: var(--r-md);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
#msg-input::placeholder { color: var(--text-mute); }
#msg-input:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
#send-btn {
  flex: none; display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: 0 1.1rem; height: 2.85rem; font-size: var(--text-base); font-weight: 600;
  color: #fff; background: var(--accent); border: none; border-radius: var(--r-md); cursor: pointer;
  transition: filter var(--dur) var(--ease), transform var(--dur-fast) var(--ease);
}
#send-btn:hover { filter: brightness(1.05); transform: translateY(-1px); }
#send-btn:active { transform: translateY(0); }

#mic-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  width: 100%; margin: var(--space-3) var(--space-4) 0; width: calc(100% - 2 * var(--space-4));
  padding: 0.75rem; font-size: var(--text-base); font-weight: 600;
  color: var(--accent-strong); background: var(--accent-soft);
  border: 1px solid transparent; border-radius: var(--r-md); cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
#mic-btn:hover { background: #D6E8EA; }

#change-char-btn { /* kept for compatibility; rendered as a header icon button via .el-iconbtn */ }

.el-panel__foot { padding: var(--space-3) var(--space-4) var(--space-4); }
.hint { font-size: var(--text-xs); color: var(--text-mute); text-align: center; }

/* ----------------------------------------------------------------------------
   10. Responsive — collapse the auth split and dock the panel on small screens
   ------------------------------------------------------------------------- */
@media (max-width: 860px) {
  #auth-screen.el-auth { grid-template-columns: 1fr; }
  .el-auth__brand { display: none; }              /* keep the form front-and-center on phones */
  .el-auth__form-side { padding: var(--space-5); }
}
@media (max-width: 520px) {
  #ui {
    left: 0; right: 0; bottom: 0; width: 100%; max-width: 100%;
    border-radius: var(--r-xl) var(--r-xl) 0 0; max-height: 72vh;
  }
  #mic-btn { width: calc(100% - 2 * var(--space-4)); }
}