/* ============================================================
   Tokens
   ============================================================ */
:root {
  /* Color — "field ledger" palette: warm paper, forest green brand,
     marigold for action, brick for flags/errors. Deliberately not the
     default AI cream+terracotta or SaaS blue/indigo combo. */
  --color-paper: #F6F2E9;
  --color-canvas: #EDE7D8;
  --color-ink: #1F2A22;
  --color-ink-soft: #4B5A50;
  --color-forest: #2B5D45;
  --color-forest-deep: #17352A;
  --color-marigold: #E0932C;
  --color-marigold-deep: #B8721A;
  --color-brick: #B5482F;
  --color-line: #D8CFB8;

  /* Type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Depth: base -> elevated -> floating */
  --shadow-elevated: 0 1px 2px rgba(23, 53, 42, 0.08), 0 4px 14px rgba(23, 53, 42, 0.08);
  --shadow-floating: 0 2px 6px rgba(23, 53, 42, 0.12), 0 16px 36px rgba(23, 53, 42, 0.18);

  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================================
   Reset / base
   ============================================================ */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.7;
  font-size: 16px;
}

h1, h2, h3 { font-family: var(--font-display); color: var(--color-forest-deep); margin: 0; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-marigold-deep);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* :not([hidden]) so this rule never outranks the browser's default
   [hidden] { display: none }, which has the same specificity but lower
   (user-agent) priority than any author rule — without the :not() guard,
   .view would force display:flex even while hidden. */
.view:not([hidden]) { display: flex; flex-direction: column; gap: var(--space-6); }

/* ============================================================
   Masthead — layered radial gradients, slow ambient drift, and a
   grain texture, per the anti-generic guardrails. This is the one
   place we spend on atmosphere; everything below stays quiet.
   ============================================================ */
.masthead {
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 15% -10%, rgba(224, 147, 44, 0.25), transparent),
    radial-gradient(ellipse 60% 50% at 100% 0%, rgba(43, 93, 69, 0.35), transparent),
    var(--color-forest-deep);
  color: var(--color-paper);
  overflow: hidden;
  padding: var(--space-7) var(--space-5) var(--space-6);
}

.masthead::before {
  content: '';
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 30% 40%, rgba(224, 147, 44, 0.16), transparent 60%);
  animation: drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes drift {
  from { transform: translate(0, 0); }
  to { transform: translate(4%, 3%); }
}

.masthead::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.5;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.masthead__inner {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  justify-content: space-between;
  align-items: flex-end;
}

.masthead__title { max-width: 560px; }

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--color-marigold);
  margin: 0 0 var(--space-2);
}

.masthead h1 {
  color: var(--color-paper);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.masthead__subtitle {
  margin: var(--space-3) 0 0;
  color: rgba(246, 242, 233, 0.8);
  max-width: 46ch;
}

.intake {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.intake__filename {
  width: 100%;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(246, 242, 233, 0.7);
}

/* View switcher — segmented control choosing Volunteer vs Organizer */
.view-switcher {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: var(--space-6) auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.view-switcher__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(246, 242, 233, 0.55);
}

.view-nav {
  display: flex;
  gap: var(--space-1);
  background: rgba(246, 242, 233, 0.1);
  border: 1px solid rgba(246, 242, 233, 0.25);
  border-radius: 999px;
  padding: 4px;
}

.view-nav__btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  border: none;
  border-radius: 999px;
  color: rgba(246, 242, 233, 0.75);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease, transform 160ms var(--ease-spring);
}

.view-nav__btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.view-nav__btn:hover { transform: translateY(-1px); color: var(--color-paper); }

.view-nav__btn.is-active {
  background: var(--color-marigold);
  color: var(--color-forest-deep);
}
.view-nav__btn.is-active:hover { color: var(--color-forest-deep); }

/* ============================================================
   Buttons — every interactive state gets transform/opacity only
   ============================================================ */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: transform 160ms var(--ease-spring), opacity 160ms ease, box-shadow 160ms ease;
}

.btn--primary {
  background: var(--color-marigold);
  color: var(--color-forest-deep);
  box-shadow: var(--shadow-elevated);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-floating); }
.btn--primary:active { transform: translateY(0) scale(0.98); }

.btn--secondary {
  background: rgba(246, 242, 233, 0.12);
  color: var(--color-paper);
  border: 1px solid rgba(246, 242, 233, 0.4);
}
.btn--secondary:hover { transform: translateY(-2px); background: rgba(246, 242, 233, 0.2); }
.btn--secondary:active { transform: translateY(0) scale(0.98); }

/* Secondary buttons used on the light background (panels) need dark text */
.panel .btn--secondary {
  background: var(--color-canvas);
  color: var(--color-forest-deep);
  border: 1px solid var(--color-line);
}
.panel .btn--secondary:hover { background: #E3DBC4; }

.btn--ghost {
  background: transparent;
  color: var(--color-forest);
  border: 1px solid var(--color-line);
}
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--color-forest); }
.btn--ghost:active { transform: translateY(0) scale(0.98); }

/* ============================================================
   Panels — the elevated surface layer
   ============================================================ */
.panel {
  background: #FFFFFF;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated);
  padding: var(--space-5);
}

.panel__header { margin-bottom: var(--space-4); }

.panel__title {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

.panel__empty {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
  margin: 0;
  padding: var(--space-4) 0;
}

/* ============================================================
   Find my shifts (volunteer)
   ============================================================ */
.quick-facts {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  margin: calc(-1 * var(--space-2)) 0 var(--space-4);
}

.lookup-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.lookup-form__field {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.lookup-form__field svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-ink-soft);
  pointer-events: none;
}

.lookup-form__field input {
  width: 100%;
  padding: var(--space-3) var(--space-3) var(--space-3) 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: var(--color-paper);
  font-family: var(--font-body);
  font-size: 0.9rem;
}
.lookup-form__field input:focus-visible { border-color: var(--color-forest); }

.lookup-empty {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  margin: 0;
  padding: var(--space-3) 0;
}

.shift-ticket-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}

.shift-ticket {
  background: var(--color-canvas);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform 160ms var(--ease-spring), box-shadow 160ms ease;
}
.shift-ticket:hover { transform: translateY(-3px); box-shadow: var(--shadow-floating); }

.shift-ticket__role {
  font-weight: 600;
  color: var(--color-forest-deep);
  margin: 0;
  font-size: 1rem;
}

.shift-ticket__divider {
  border: none;
  border-top: 1px dashed var(--color-line);
  margin: var(--space-2) 0;
}

.shift-ticket__meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
}

/* ============================================================
   Volunteer info cards
   ============================================================ */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.info-card {
  background: #FFFFFF;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: transform 160ms var(--ease-spring), box-shadow 160ms ease;
}
.info-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-floating); }

.info-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-forest);
}
.info-card__icon svg { width: 20px; height: 20px; }

.info-card__title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-forest-deep);
  margin: 0;
}

.info-card__body {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0;
  line-height: 1.6;
}

/* ============================================================
   Validation summary — the signature "stamp" element
   ============================================================ */
.validation-content__top {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.stamp {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--color-brick);
  border: 2px solid var(--color-brick);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  transform: rotate(-4deg);
  display: inline-block;
  position: relative;
  animation: stamp-down 420ms var(--ease-spring) both;
}
.stamp::before {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid var(--color-brick);
  border-radius: 2px;
}

@keyframes stamp-down {
  from { opacity: 0; transform: rotate(-4deg) scale(1.5); }
  to { opacity: 1; transform: rotate(-4deg) scale(1); }
}

.source-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
}

.stat-line {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: var(--space-4);
  margin: 0 0 var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.stat-line__item dt {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-1);
}
.stat-line__item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-forest-deep);
}

.flagged-details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-forest);
  font-size: 0.9rem;
}
.flagged-details summary:hover { color: var(--color-forest-deep); }

.flagged-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.flagged-list__item {
  font-size: 0.9rem;
  padding: var(--space-3);
  background: var(--color-canvas);
  border-left: 3px solid var(--color-brick);
  border-radius: var(--radius-sm);
}
.flagged-list__reasons {
  display: block;
  color: var(--color-brick);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-top: var(--space-1);
}
.flagged-list__empty {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  padding: var(--space-3);
}

/* ============================================================
   Dashboard — KPI cards + charts
   ============================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.kpi-card {
  background: var(--color-canvas);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-line);
  animation: rise 380ms var(--ease-spring) both;
  transition: transform 160ms var(--ease-spring), box-shadow 160ms ease;
}
.kpi-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-floating); }
.kpi-card:nth-child(1) { animation-delay: 0ms; }
.kpi-card:nth-child(2) { animation-delay: 60ms; }
.kpi-card:nth-child(3) { animation-delay: 120ms; }
.kpi-card:nth-child(4) { animation-delay: 180ms; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.kpi-card__value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-forest-deep);
  margin: 0;
}
.kpi-card--warn .kpi-card__value { color: var(--color-brick); }

.kpi-card__label {
  margin: var(--space-1) 0 0;
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}

.chart-card {
  background: #FFFFFF;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform 160ms var(--ease-spring), box-shadow 160ms ease;
}
.chart-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-floating); }

.chart-card__title {
  margin: 0 0 var(--space-3);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-forest-deep);
}

.chart-card__canvas-wrap { height: 260px; position: relative; }

.chart-card__fallback {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0;
  padding: var(--space-3) 0;
}

/* ============================================================
   Chatbot
   ============================================================ */
.chat-log {
  height: 220px;
  overflow-y: auto;
  background: var(--color-canvas);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.chat-message {
  max-width: 85%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  white-space: pre-line;
  animation: slide-in 200ms ease both;
}

@keyframes slide-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-message--user {
  align-self: flex-end;
  background: var(--color-forest);
  color: var(--color-paper);
}
.chat-message--bot {
  align-self: flex-start;
  background: #FFFFFF;
  border: 1px solid var(--color-line);
  color: var(--color-ink);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.chip {
  font-family: var(--font-body);
  font-size: 0.78rem;
  background: transparent;
  border: 1px solid var(--color-line);
  color: var(--color-forest);
  border-radius: 999px;
  padding: var(--space-1) var(--space-3);
  cursor: pointer;
  transition: transform 160ms var(--ease-spring), border-color 160ms ease;
}
.chip:hover { border-color: var(--color-forest); transform: translateY(-1px); }
.chip:active { transform: translateY(0) scale(0.97); }

.chat-form {
  display: flex;
  gap: var(--space-2);
}

.chat-form input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: var(--color-paper);
}
.chat-form input:focus-visible { border-color: var(--color-forest); }

/* ============================================================
   Reminders (organizer)
   ============================================================ */
.field-label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-soft);
  margin: var(--space-3) 0 var(--space-1);
}

#reminder-shift-select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: var(--color-paper);
  color: var(--color-ink);
}

.reminder-generate-btn { margin-top: var(--space-3); width: 100%; justify-content: center; }

#reminder-output {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: var(--color-canvas);
  color: var(--color-ink);
  resize: vertical;
}

#copy-reminder-btn { margin-top: var(--space-3); width: 100%; justify-content: center; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  text-align: center;
  padding: var(--space-6) var(--space-5);
  color: var(--color-ink-soft);
  font-size: 0.82rem;
}

/* ============================================================
   Motion preference
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ============================================================
   Small screens
   ============================================================ */
@media (max-width: 600px) {
  main { padding: var(--space-5) var(--space-4) var(--space-7); }
  .masthead { padding: var(--space-6) var(--space-4); }
  .masthead__inner { align-items: flex-start; }
  .intake { width: 100%; }
  .intake .btn { flex: 1; justify-content: center; }
  .view-switcher { flex-direction: column; gap: var(--space-2); }
  .lookup-form { flex-direction: column; }
  .lookup-form .btn { justify-content: center; }
}