/* ====================================================================
   Sere design system — shared stylesheet for every page.
   Tokens from "Sere Design System" (tokens/*). Page-specific styles
   (landing filters/map, feedback dialog) stay inline in their page.
   ==================================================================== */

:root {
  --sere-green-50: #f3fcf7;
  --sere-green-100: #dff6e9;
  --sere-green-200: #c0edd4;
  --sere-green-300: #90dfb4;
  --sere-green-400: #4ed088;
  --sere-green-500: #2bbf6e;
  --sere-green-600: #1f9d57;
  --sere-green-700: #187c45;
  --sere-green-800: #125e34;
  --sere-green-900: #0f4326;

  --sere-gray-50: #fafafa;
  --sere-gray-100: #f6f6f6;
  --sere-gray-200: #ebebeb;
  --sere-gray-300: #d9d9d9;
  --sere-gray-400: #a6a6a6;
  --sere-gray-500: #7a7a7a;
  --sere-gray-600: #5c5c5c;
  --sere-gray-700: #454545;
  --sere-gray-800: #2e2e2e;
  --sere-gray-900: #1c1c1c;

  --sere-error-100: #fae6e5;
  --sere-error-500: #dd382c;
  --sere-error-700: #a8271d;
  --sere-warning-500: #ec9513;

  --color-bg-page: var(--sere-gray-50);
  --color-bg-card: #ffffff;
  --color-bg-sunken: var(--sere-gray-100);
  --color-border: var(--sere-gray-200);
  --color-border-strong: var(--sere-gray-300);

  --color-text-primary: var(--sere-gray-800);
  --color-text-secondary: var(--sere-gray-600);
  --color-text-muted: var(--sere-gray-400);
  --color-text-on-brand: #ffffff;

  --color-brand: var(--sere-green-600);
  --color-brand-hover: var(--sere-green-700);
  --color-brand-active: var(--sere-green-800);
  --color-brand-subtle: var(--sere-green-100);

  --color-error: var(--sere-error-500);

  --font-serif-display: Georgia, "Times New Roman", serif;
  --font-sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --shadow-xs: 0 1px 2px rgba(28, 28, 28, 0.04);
  --shadow-sm: 0 1px 3px rgba(28, 28, 28, 0.06), 0 1px 2px rgba(28, 28, 28, 0.04);
  --shadow-md: 0 4px 12px rgba(28, 28, 28, 0.08), 0 1px 3px rgba(28, 28, 28, 0.05);
  --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.12), 0 2px 6px rgba(28, 28, 28, 0.06);

  --focus-ring: 0 0 0 3px rgba(43, 191, 110, 0.35);

  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 120ms;
  --duration-base: 200ms;
  --duration-slow: 320ms;

  --content-max-width: 1120px;
}

/* ====================================================================
   Base
   ==================================================================== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}

img {
  max-width: 100%;
  height: auto;
}

.shell {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 24px 24px 64px;
}

.reveal {
  opacity: 0;
  transform: translateY(8px);
  animation: reveal var(--duration-slow) var(--ease-out) forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

button {
  font-family: var(--font-sans);
}

:is(button, a, select, textarea, input):focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ====================================================================
   Buttons — .btn defaults to primary; `ghost`/`btn-secondary` are the
   outlined variant, `btn-ghost` is borderless, `danger` is destructive.
   ==================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  background: var(--color-brand);
  color: var(--color-text-on-brand);
  border: 1px solid var(--color-brand);
  transition: background var(--duration-base) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.btn:hover {
  background: var(--color-brand-hover);
}

.btn:active {
  transform: scale(0.98);
  background: var(--color-brand-active);
}

.btn:disabled {
  cursor: wait;
  opacity: 0.7;
}

.btn.ghost,
.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}

.btn.ghost:hover,
.btn.ghost:active,
.btn-secondary:hover,
.btn-secondary:active {
  background: var(--color-bg-sunken);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border-color: transparent;
}

.btn-ghost:hover,
.btn-ghost:active {
  background: var(--color-bg-sunken);
}

.btn.danger,
.btn-danger {
  background: var(--color-error);
  color: #fff;
  border-color: var(--color-error);
}

.btn.danger:hover,
.btn.danger:active,
.btn-danger:hover,
.btn-danger:active {
  background: var(--sere-error-700);
}

.btn-sm {
  min-height: 34px;
  padding: 8px 14px;
}

.text-link {
  color: var(--sere-green-700);
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

/* ====================================================================
   Top bar
   ==================================================================== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand svg {
  display: block;
  width: 28.8px;
  height: 28.8px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

/* ====================================================================
   Hero / page headings
   ==================================================================== */
.hero {
  margin: 48px 0 8px;
  max-width: 720px;
}

.hero h1 {
  margin: 0 0 12px;
  font-family: var(--font-serif-display);
  font-weight: 400;
  font-size: clamp(36px, 5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 18px;
  line-height: 1.5;
  max-width: 56ch;
}

/* Compact heading for console sub-pages */
.hero.hero-page {
  margin: 32px 0 8px;
}

.hero.hero-page h1 {
  font-size: clamp(28px, 4vw, 36px);
}

.hero.hero-page p {
  font-size: 16px;
}

/* ====================================================================
   Panels / grids (Card spec: white fill, hairline border, shadow-sm)
   ==================================================================== */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.grid.grid-tight {
  margin-top: 24px;
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
  align-items: start;
}

.panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
}

.panel h2 {
  margin: 0 0 16px;
  font-family: var(--font-serif-display);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.01em;
}

section.panel {
  margin-top: 24px;
}

/* ====================================================================
   Forms
   ==================================================================== */
.stack {
  display: grid;
  gap: 14px;
}

.stack.compact {
  margin-top: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

input,
select,
textarea {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text-primary);
  padding: 10px 12px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  transition: border-color var(--duration-base) var(--ease-standard);
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: var(--focus-ring);
}

.password-field {
  position: relative;
}

.password-field input {
  width: 100%;
  padding-right: 40px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 4px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-standard);
}

.password-toggle:hover {
  color: var(--color-text-primary);
}

.password-toggle.is-active {
  color: var(--color-brand);
}

/* Chip-style checkbox group (admin landing tags) */
.tag-fieldset {
  margin: 0;
  padding: 0;
  border: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-fieldset legend {
  padding: 0;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.checkbox-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: background var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard);
}

.checkbox-inline:hover {
  background: var(--color-bg-sunken);
}

.checkbox-inline:has(input:checked) {
  background: var(--color-brand-subtle);
  border-color: var(--sere-green-300);
  color: var(--sere-green-800);
}

.checkbox-inline input {
  margin: 0;
  accent-color: var(--color-brand);
}

/* Collapsible secondary form (host register) */
.disclosure {
  margin-top: 16px;
  border-top: 1px solid var(--color-border);
  padding-top: 12px;
}

.disclosure summary {
  cursor: pointer;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 2px;
  transition: color var(--duration-fast) var(--ease-standard);
}

.disclosure summary:hover {
  color: var(--color-text-primary);
}

.disclosure[open] summary {
  color: var(--color-text-primary);
}

/* ====================================================================
   Hints and status lines
   ==================================================================== */
.hint {
  margin: 16px 0 4px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.status {
  min-height: 20px;
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.status.ok {
  color: var(--sere-green-700);
}

.status.bad {
  color: var(--color-error);
}

.status.neutral {
  color: var(--color-text-secondary);
}

/* ====================================================================
   Console (host.html) specifics
   ==================================================================== */
#logout-btn,
#events-link-btn,
#discounts-link-btn,
#admin-link-btn,
#landing-admin-link-btn,
#feedback-admin-link-btn,
#scans-admin-link-btn {
  display: flex;
  width: 100%;
  margin-top: 8px;
}

.qr-result {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.qr-result img {
  width: min(260px, 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
}

.qr-result a {
  color: var(--sere-green-700);
  word-break: break-all;
  font-size: 13px;
}

/* ====================================================================
   List items (events, promotions, users, feedback)
   ==================================================================== */
.events-list {
  display: grid;
  gap: 10px;
}

.event-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  padding: 16px;
}

.event-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.event-item p {
  margin: 4px 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.event-item p strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

.event-item .hint {
  margin: 4px 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.event-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.event-actions .btn {
  min-height: 34px;
  padding: 8px 14px;
}

.event-actions select {
  min-height: 34px;
  padding: 6px 10px;
}

/* ====================================================================
   Promotions dashboard
   ==================================================================== */
.promotion-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.promotion-stat {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--color-bg-card);
}

.promotion-stat-active {
  border-color: var(--sere-green-300);
  background: var(--sere-green-50);
}

.promotion-stat-label {
  margin: 0;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.promotion-stat-value {
  margin: 6px 0 0;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
}

.promotion-stat-active .promotion-stat-value {
  color: var(--sere-green-700);
}

/* ====================================================================
   Scan result page
   ==================================================================== */
.scan-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.scan-card {
  width: min(460px, 100%);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.scan-logo {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  display: block;
}

.scan-eyebrow {
  margin: 0 0 12px;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scan-status-heading {
  margin: 0;
  font-family: var(--font-serif-display);
  font-weight: 400;
  font-size: clamp(30px, 7vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.scan-message {
  margin: 14px auto 24px;
  max-width: 30ch;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.5;
}

.scan-card.active {
  border-color: var(--sere-green-300);
  background: linear-gradient(180deg, #ffffff 0%, var(--sere-green-50) 100%);
}

.scan-card.active .scan-status-heading {
  color: var(--sere-green-700);
}

.scan-card.failed {
  border-color: #f0b3ae;
  background: linear-gradient(180deg, #ffffff 0%, var(--sere-error-100) 100%);
}

.scan-card.failed .scan-status-heading {
  color: var(--color-error);
}

/* ====================================================================
   Footer
   ==================================================================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
}

.site-footer p {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 20px 24px 28px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ====================================================================
   Visibility helpers
   ==================================================================== */
.hidden {
  display: none;
}

#logout-btn.hidden,
#events-link-btn.hidden,
#discounts-link-btn.hidden,
#admin-link-btn.hidden,
#landing-admin-link-btn.hidden,
#feedback-admin-link-btn.hidden,
#scans-admin-link-btn.hidden {
  display: none;
}

.hidden-auth {
  display: none;
}

/* ====================================================================
   Responsive
   ==================================================================== */
@media (max-width: 960px) {
  .grid,
  .events-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    margin-top: 32px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-wrap: wrap;
  }
}