/* =========================================================
   Ticket9ja — Receipt Portal
   Design tokens
========================================================= */
:root {
  --color-primary: #0F172A;
  --color-accent: #16A34A;
  --color-accent-hover: #128A38;
  --color-bg: #F8FAFC;
  --color-card: #FFFFFF;
  --color-border: #E5E7EB;
  --color-text: #1E293B;
  --color-muted: #64748B;
  --color-danger: #DC2626;
  --color-danger-bg: #FEF2F2;
  --color-success-bg: #F0FDF4;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 40px -12px rgba(15, 23, 42, 0.18);

  --font-sans: "Inter", "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

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

a, button, input {
  font-family: inherit;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* =========================================================
   Top Navigation
========================================================= */
.topnav {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
}

.topnav__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand__mark {
  display: inline-flex;
}

.brand__name {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.topnav__badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
}

/* =========================================================
   Layout
========================================================= */
.page {
  flex: 1;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  padding: 56px 24px 40px;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 32px;
  animation: fade-in 0.5s var(--ease);
}

.hero h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  margin: 0 0 10px;
}

.hero__subtitle {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--color-muted);
  max-width: 460px;
  margin: 0 auto;
}

/* =========================================================
   Search Card
========================================================= */
.search-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 22px;
  animation: fade-in 0.6s var(--ease);
}

.tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 20px;
}

.tab {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  background: transparent;
  color: var(--color-muted);
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 8px;
  border-radius: calc(var(--radius-md) - 4px);
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

.tab svg {
  flex-shrink: 0;
}

.tab.is-active {
  color: var(--color-primary);
}

.tabs__indicator {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(33.333% - 5.33px);
  height: calc(100% - 8px);
  background: var(--color-card);
  border-radius: calc(var(--radius-md) - 4px);
  box-shadow: var(--shadow-sm);
  transition: transform 0.28s var(--ease);
  z-index: 0;
}

.tab[data-method="receiptId"].is-active ~ .tabs__indicator,
.tabs .tab:nth-child(2).is-active ~ .tabs__indicator {
  transform: translateX(100%);
}

.tabs .tab:nth-child(3).is-active ~ .tabs__indicator {
  transform: translateX(200%);
}

.field {
  margin-bottom: 18px;
  animation: fade-in 0.3s var(--ease);
}

.field.is-hidden,
.field[hidden] {
  display: none;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.field input {
  width: 100%;
  padding: 13px 14px;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}

.field input::placeholder {
  color: #94A3B8;
}

.field input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-card);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.12);
}

.field-error {
  margin: -8px 0 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-danger);
}

.field-error[hidden] { display: none; }

/* Search button */
.btn-search {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 15px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s var(--ease), transform 0.15s var(--ease), box-shadow 0.2s var(--ease);
  box-shadow: var(--shadow-sm);
}

.btn-search:hover:not(:disabled) {
  background: #1E293B;
  box-shadow: var(--shadow-md);
}

.btn-search:active:not(:disabled) {
  transform: scale(0.99);
}

.btn-search:disabled {
  opacity: 0.75;
  cursor: not-allowed;
}

.btn-search__icon {
  flex-shrink: 0;
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

.spinner[hidden] { display: none; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

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

/* =========================================================
   Results area
========================================================= */
.results {
  margin-top: 28px;
}

/* Empty / error state */
.state-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 44px 28px;
  text-align: center;
  animation: fade-in 0.35s var(--ease);
}

.state-card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-muted);
}

.state-card.is-error .state-card__icon {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.state-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 6px;
}

.state-card__message {
  font-size: 14px;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.6;
}

/* Receipt Summary Card */
.receipt-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  animation: fade-in 0.4s var(--ease);
}

.receipt-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 24px 20px;
  border-bottom: 1px dashed var(--color-border);
}

.receipt-card__heading {
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin: 0 0 6px;
}

.receipt-card__amount {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin: 0;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  text-transform: capitalize;
  white-space: nowrap;
}

.status-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-pill.is-success {
  background: var(--color-success-bg);
  color: var(--color-accent);
}

.status-pill.is-pending {
  background: #FFFBEB;
  color: #D97706;
}

.status-pill.is-failed {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.receipt-card__body {
  padding: 20px 24px 4px;
}

.detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-row__label {
  color: var(--color-muted);
  font-weight: 500;
}

.detail-row__value {
  color: var(--color-text);
  font-weight: 600;
  text-align: right;
  word-break: break-word;
}

.receipt-card__actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 20px 24px 24px;
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.15s var(--ease);
  text-decoration: none;
}

.action-btn:hover {
  background: #EEF2F6;
  border-color: #CBD5E1;
}

.action-btn:active {
  transform: scale(0.98);
}

.action-btn.is-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.action-btn.is-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.action-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* =========================================================
   Toast
========================================================= */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(0);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-primary);
  color: #fff;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 500;
  max-width: calc(100% - 48px);
  z-index: 100;
  animation: toast-in 0.35s var(--ease);
}

.toast[hidden] { display: none; }

.toast.is-success .toast__icon { color: #4ADE80; }
.toast.is-error .toast__icon { color: #F87171; }

.toast__icon {
  display: inline-flex;
  flex-shrink: 0;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* =========================================================
   Footer
========================================================= */
.footer {
  text-align: center;
  padding: 28px 24px 36px;
  border-top: 1px solid var(--color-border);
}

.footer p {
  margin: 0 0 4px;
  font-size: 13.5px;
  color: var(--color-text);
}

.footer__muted {
  color: var(--color-muted) !important;
  font-size: 12.5px !important;
}

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 560px) {
  .hero h1 { font-size: 26px; }
  .search-card { padding: 18px; border-radius: var(--radius-md); }
  .tab { font-size: 12.5px; padding: 9px 4px; gap: 4px; }
  .receipt-card__header { flex-direction: column; }
  .receipt-card__amount { font-size: 26px; }
  .receipt-card__actions { grid-template-columns: 1fr; }
}

@media (min-width: 720px) {
  .page { max-width: 680px; }
}