/* ============================================================================
   PetPulse — Design tokens + component classes
   ----------------------------------------------------------------------------
   Authored from the "Clinical Calm" prototype system (web-shared.jsx `W` /
   theme()). Standalone — no build step, no framework. Drop into
   app/assets/stylesheets/ and @import, or include directly.

   Dark mode: set  <html data-theme="dark">  (or on any wrapper).
   All component classes are prefixed .pp- to avoid collisions.
   ============================================================================ */

/* ---------------------------------------------------------------- TOKENS  */
:root {
  /* surfaces */
  --pp-bg:          #F7F8FA;
  --pp-surface:     #FFFFFF;
  --pp-surface-2:   #F4F5F7;   /* recessed */
  --pp-chip:        #EEF0F2;
  --pp-border:      #ECEDEF;   /* hairline */
  --pp-border-str:  #E2E4E8;   /* stronger hairline (inputs) */

  /* text */
  --pp-text:        #0A0B0D;
  --pp-text-sec:    #6B7077;
  --pp-text-ter:    #A8ABB1;

  /* brand */
  --pp-primary:      #2D7D6E;
  --pp-primary-ink:  #1A5247;
  --pp-primary-soft: #E6F2EF;

  /* semantic */
  --pp-alert:        #E5484D;  --pp-alert-soft:   #FDECEC;
  --pp-warn:         #D97A28;  --pp-warn-soft:    #FAEDDD;
  --pp-info:         #3A8BC9;  --pp-info-soft:    #E0F4FF;
  --pp-violet:       #7E5BD9;  --pp-violet-soft:  #F0EAFF;
  --pp-success:      #1F8A5B;  --pp-success-soft: #E2F2EA;

  /* type */
  --pp-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --pp-font-mono: ui-monospace, Menlo, "SF Mono", monospace;

  /* radii */
  --pp-r-card:   18px;
  --pp-r-input:  10px;
  --pp-r-btn:    10px;
  --pp-r-pill:   999px;

  /* shadow */
  --pp-shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --pp-shadow-md: 0 8px 24px rgba(15,18,20,0.10);

  /* layout */
  --pp-sidebar-w:           240px;
  --pp-sidebar-w-collapsed: 72px;
  --pp-content-pad:         28px;
}

[data-theme="dark"] {
  --pp-bg:          #0B0C0E;
  --pp-surface:     #16181B;
  --pp-surface-2:   #1F2226;
  --pp-chip:        #22252A;
  --pp-border:      #26292E;
  --pp-border-str:  #2F3338;

  --pp-text:        #F2F3F4;
  --pp-text-sec:    #9CA0A7;
  --pp-text-ter:    #6E7178;

  --pp-primary:      #62C8B5;
  --pp-primary-ink:  #A8DDD2;
  --pp-primary-soft: #1A3A35;

  --pp-alert-soft:   rgba(229,72,77,0.14);
  --pp-warn-soft:    rgba(217,122,40,0.14);
  --pp-info-soft:    rgba(58,139,201,0.14);
  --pp-violet-soft:  rgba(126,91,217,0.18);
  --pp-success:      #34A853;
  --pp-success-soft: rgba(52,168,83,0.16);
}

/* ----------------------------------------------------------------- BASE  */
.pp-root, .pp-app { font-family: var(--pp-font); color: var(--pp-text); background: var(--pp-bg);
  -webkit-font-smoothing: antialiased; text-rendering: geometricPrecision; }
.pp-app *, .pp-root * { box-sizing: border-box; }

/* tabular numerals helper */
.pp-num { font-variant-numeric: tabular-nums; }
.pp-mono { font-family: var(--pp-font-mono); letter-spacing: -0.3px; }

/* ----------------------------------------------------------- TYPOGRAPHY  */
.pp-h1        { margin: 0; font-size: 22px;   font-weight: 700; letter-spacing: -0.5px; color: var(--pp-text); }
.pp-h2        { margin: 0; font-size: 21px;   font-weight: 700; letter-spacing: -0.4px; color: var(--pp-text); }
.pp-card-title{ font-size: 15.5px; font-weight: 700; letter-spacing: -0.2px; color: var(--pp-text); }
.pp-body      { font-size: 14px;   color: var(--pp-text); line-height: 1.55; }
.pp-sec       { color: var(--pp-text-sec); }
.pp-ter       { color: var(--pp-text-ter); }
.pp-overline  { font-size: 11.5px; font-weight: 600; letter-spacing: 0.4px; text-transform: uppercase; color: var(--pp-text-sec); }
.pp-label     { font-size: 12.5px; font-weight: 600; letter-spacing: -0.05px; color: var(--pp-text); }
.pp-hint      { font-size: 11.5px; color: var(--pp-text-ter); line-height: 1.45; }
.pp-stat-num  { font-size: 34px;  font-weight: 700; letter-spacing: -1px; line-height: 1; font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- LAYOUT */
/* App frame: sidebar + main. Designed at 1440px; let it fluid-fill in app. */
.pp-app { display: flex; min-height: 100vh; }
.pp-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.pp-content { padding: 24px var(--pp-content-pad) 40px; }
.pp-content--narrow { max-width: 980px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
.pp-content--wide   { max-width: 1180px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }

/* Sidebar */
.pp-sidebar { width: var(--pp-sidebar-w); flex-shrink: 0; background: var(--pp-surface);
  border-right: 0.5px solid var(--pp-border); display: flex; flex-direction: column;
  position: sticky; top: 0; align-self: flex-start; min-height: 100vh; }
.pp-sidebar--collapsed { width: var(--pp-sidebar-w-collapsed); }
.pp-sidebar__logo { padding: 20px 20px 16px; display: flex; align-items: center; gap: 10px; }
.pp-sidebar__nav { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 2px; }
.pp-navitem { display: flex; align-items: center; gap: 12px; padding: 9px 12px; border-radius: 10px;
  color: var(--pp-text); cursor: pointer; font-size: 13.5px; font-weight: 500; }
.pp-navitem:hover { background: var(--pp-surface-2); }
.pp-navitem--active { background: var(--pp-primary-soft); color: var(--pp-primary); font-weight: 600; }
.pp-navitem__count { margin-left: auto; font-size: 11px; font-weight: 600; color: var(--pp-text-ter); font-variant-numeric: tabular-nums; }

/* Page header (in content area) */
.pp-pageheader { display: flex; align-items: center; gap: 14px; padding: 20px var(--pp-content-pad) 18px;
  border-bottom: 0.5px solid var(--pp-border); }
.pp-pageheader__titles { flex: 1; min-width: 0; display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.pp-pageheader__sub { font-size: 13.5px; color: var(--pp-text-sec); letter-spacing: -0.1px; }
.pp-pageheader__actions { display: flex; align-items: center; gap: 8px; }

/* Settings sub-nav */
.pp-tabs { display: flex; gap: 2px; padding: 0 var(--pp-content-pad); background: var(--pp-surface);
  border-bottom: 0.5px solid var(--pp-border); }
.pp-tab { display: flex; align-items: center; gap: 8px; padding: 13px 14px; cursor: pointer;
  border-bottom: 2px solid transparent; color: var(--pp-text-sec); font-size: 13.5px; font-weight: 500; margin-bottom: -0.5px; }
.pp-tab--active { border-bottom-color: var(--pp-primary); color: var(--pp-text); font-weight: 600; }

/* ----------------------------------------------------------------- CARD  */
.pp-card { background: var(--pp-surface); border: 0.5px solid var(--pp-border);
  border-radius: var(--pp-r-card); padding: 20px; }
.pp-card--flush { padding: 0; }
.pp-card__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  padding: 16px 22px 14px; border-bottom: 0.5px solid var(--pp-border); }
.pp-card__body { padding: 22px; }

/* --------------------------------------------------------------- BUTTONS */
.pp-btn { display: inline-flex; align-items: center; gap: 7px; padding: 9px 14px;
  border-radius: var(--pp-r-btn); border: 0.5px solid transparent; font-family: inherit;
  font-size: 14px; font-weight: 600; letter-spacing: -0.1px; cursor: pointer; white-space: nowrap; }
.pp-btn--sm { padding: 7px 12px; font-size: 13px; }
.pp-btn--lg { padding: 11px 18px; font-size: 15px; }
.pp-btn--primary   { background: var(--pp-primary); color: #fff; }
.pp-btn--secondary { background: var(--pp-surface); color: var(--pp-text); border-color: var(--pp-border-str); }
.pp-btn--ghost     { background: transparent; color: var(--pp-text); }
.pp-btn--danger    { background: var(--pp-alert); color: #fff; }
.pp-btn--icon { width: 32px; height: 32px; padding: 0; justify-content: center;
  border-radius: 9px; background: var(--pp-surface); border: 0.5px solid var(--pp-border); color: var(--pp-text-sec); }
.pp-btn--icon.pp-btn--danger-ghost { color: var(--pp-alert); }

/* ------------------------------------------------------ PILLS / BADGES   */
/* Base soft pill. Pair with a color modifier. */
.pp-pill { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px;
  border-radius: var(--pp-r-pill); font-size: 11.5px; font-weight: 600; white-space: nowrap; }
.pp-pill--primary { background: var(--pp-primary-soft); color: var(--pp-primary); }
.pp-pill--success { background: var(--pp-success-soft); color: var(--pp-success); }
.pp-pill--warn    { background: var(--pp-warn-soft);    color: var(--pp-warn); }
.pp-pill--alert   { background: var(--pp-alert-soft);   color: var(--pp-alert); }
.pp-pill--info    { background: var(--pp-info-soft);    color: var(--pp-info); }
.pp-pill--violet  { background: var(--pp-violet-soft);  color: var(--pp-violet); }
.pp-pill--neutral { background: var(--pp-surface-2); color: var(--pp-text-sec); border: 0.5px solid var(--pp-border); }

/* status dot */
.pp-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ----------------------------------------------------------- FORM FIELDS */
.pp-field { display: flex; flex-direction: column; }
.pp-field__label { display: flex; align-items: baseline; gap: 6px; margin-bottom: 7px; }
.pp-field__optional { font-size: 11.5px; color: var(--pp-text-ter); font-weight: 500; }
.pp-field__hint { font-size: 11.5px; color: var(--pp-text-ter); margin-top: 6px; line-height: 1.45; }

.pp-input, .pp-select, .pp-textarea {
  width: 100%; padding: 10px 13px; border-radius: var(--pp-r-input);
  background: var(--pp-surface); border: 0.5px solid var(--pp-border-str);
  font-family: var(--pp-font); font-size: 14px; color: var(--pp-text); font-weight: 500;
  letter-spacing: -0.1px; box-sizing: border-box; }
.pp-input::placeholder, .pp-textarea::placeholder { color: var(--pp-text-ter); font-weight: 400; }
.pp-input:focus, .pp-select:focus, .pp-textarea:focus {
  outline: none; border-color: var(--pp-primary); box-shadow: 0 0 0 3px var(--pp-primary-soft); }
.pp-textarea { min-height: 96px; line-height: 1.5; resize: vertical; }
.pp-select { appearance: none; display: flex; align-items: center; justify-content: space-between;
  background-image: none; cursor: pointer; }
/* input with a leading icon: wrap input in .pp-input-group */
.pp-input-group { display: flex; align-items: center; gap: 9px; padding: 10px 13px;
  border-radius: var(--pp-r-input); background: var(--pp-surface); border: 0.5px solid var(--pp-border-str); }
.pp-input-group input { border: 0; padding: 0; background: transparent; flex: 1; font: inherit; color: var(--pp-text); }
.pp-input-group input:focus { outline: none; }

.pp-form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.pp-form-grid--3 { grid-template-columns: repeat(3, 1fr); }
.pp-form-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 4px; }
.pp-form-footer__actions { display: flex; gap: 10px; }

/* --------------------------------------------------- SEGMENTED CONTROL   */
.pp-seg { display: inline-flex; padding: 3px; border-radius: 10px; background: var(--pp-chip);
  border: 0.5px solid var(--pp-border); }
.pp-seg__item { display: flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 8px;
  color: var(--pp-text-sec); font-size: 12.5px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.pp-seg__item--active { background: var(--pp-surface); color: var(--pp-text); box-shadow: var(--pp-shadow-sm); }
.pp-seg__item--active.is-view   { color: var(--pp-info); }
.pp-seg__item--active.is-manage { color: var(--pp-primary); }

/* ------------------------------------------------------ TOGGLE SWITCH    */
.pp-toggle { width: 44px; height: 26px; border-radius: 13px; background: #D4D6DA; padding: 2px;
  display: flex; align-items: center; cursor: pointer; transition: background .2s; flex-shrink: 0; }
.pp-toggle__knob { width: 22px; height: 22px; border-radius: 11px; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,0.2); transition: transform .2s; }
.pp-toggle--on { background: var(--pp-primary); }
.pp-toggle--on .pp-toggle__knob { transform: translateX(18px); }

/* --------------------------------------------------- ACCESS / PERMISSION */
.pp-access-row { display: flex; align-items: center; gap: 14px; padding: 14px 18px;
  border-bottom: 0.5px solid var(--pp-border); }
.pp-access-row:last-child { border-bottom: 0; }
.pp-access-row__icon { width: 36px; height: 36px; border-radius: 10px; background: var(--pp-surface-2);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--pp-text-sec); }

/* ----------------------------------------------------------- AVATARS     */
/* User avatar: set background + color inline per-person (see COMPONENTS.md tones). */
.pp-avatar { border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  font-weight: 700; letter-spacing: -0.3px; border: 0.5px solid var(--pp-border);
  background: var(--pp-primary-soft); color: var(--pp-primary); }
.pp-avatar--40 { width: 40px; height: 40px; font-size: 15px; }
.pp-avatar--64 { width: 64px; height: 64px; font-size: 24px; }
.pp-avatar--88 { width: 88px; height: 88px; font-size: 33px; }

/* Species glyph (clinical pages) — set bg/color per species, see COMPONENTS.md */
.pp-glyph { border-radius: 30%; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  background: var(--pp-surface-2); color: var(--pp-text-sec); }

/* ----------------------------------------------------------- LIST / ROWS */
.pp-list { /* put on .pp-card.pp-card--flush wrapping rows */ }
.pp-row { display: flex; align-items: center; gap: 14px; padding: 14px 18px; cursor: pointer;
  border-bottom: 0.5px solid var(--pp-border); }
.pp-row:last-child { border-bottom: 0; }
.pp-row:hover { background: var(--pp-surface-2); }
.pp-colhead { display: flex; align-items: center; gap: 14px; padding: 0 18px 8px;
  font-size: 11px; font-weight: 600; color: var(--pp-text-ter); letter-spacing: 0.4px; text-transform: uppercase; }

/* ----------------------------------------------------------- EMPTY STATE */
.pp-empty { display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 56px 32px; min-height: 360px; }
.pp-empty__icon { width: 76px; height: 76px; border-radius: 22px; background: var(--pp-primary-soft);
  color: var(--pp-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 22px; }
.pp-empty__title { font-size: 21px; font-weight: 700; letter-spacing: -0.4px; color: var(--pp-text); margin: 0; }
.pp-empty__body { margin: 10px 0 0; font-size: 14px; line-height: 1.55; color: var(--pp-text-sec);
  max-width: 420px; text-wrap: pretty; }
.pp-empty__actions { display: flex; gap: 10px; margin-top: 24px; }
.pp-empty__foot { margin-top: 22px; font-size: 12.5px; color: var(--pp-text-ter); }

/* -------------------------------------------------------- RICH TEXT BOX  */
.pp-rte { border-radius: 12px; border: 0.5px solid var(--pp-border-str); overflow: hidden; background: var(--pp-surface); }
.pp-rte__toolbar { display: flex; align-items: center; gap: 2px; padding: 7px 10px; flex-wrap: wrap;
  background: var(--pp-surface-2); border-bottom: 0.5px solid var(--pp-border); }
.pp-rte__btn { min-width: 28px; height: 28px; padding: 0 6px; border-radius: 7px; display: flex;
  align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: var(--pp-text-sec); cursor: pointer; }
.pp-rte__btn:hover { background: var(--pp-surface); }
.pp-rte__body { padding: 14px 16px; min-height: 180px; font-size: 13.5px; line-height: 1.6; color: var(--pp-text); }
.pp-rte__body:empty::before { content: attr(data-placeholder); color: var(--pp-text-ter); }

/* -------------------------------------------------------- UPLOAD TILE    */
.pp-upload { border-radius: 12px; border: 1.5px dashed var(--pp-border-str); background: var(--pp-surface-2);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer; text-align: center; padding: 16px; min-height: 132px; }
.pp-upload__icon { width: 40px; height: 40px; border-radius: 11px; background: var(--pp-surface);
  border: 0.5px solid var(--pp-border); display: flex; align-items: center; justify-content: center; color: var(--pp-text-sec); }
.pp-upload--square { aspect-ratio: 1; min-height: 0; }

/* -------------------------------------------------------- TOOL / STAT TILES */
.pp-tile { background: var(--pp-surface); border: 0.5px solid var(--pp-border); border-radius: var(--pp-r-card);
  padding: 18px; cursor: pointer; }
.pp-tile__icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center;
  justify-content: center; margin-bottom: 14px; }

/* responsive: collapse 2/3-col grids on narrow screens */
@media (max-width: 900px) {
  .pp-form-grid, .pp-form-grid--3 { grid-template-columns: 1fr; }
}
