:root {
  --sky-50: #f0f9ff;
  --sky-100: #e0f2fe;
  --sky-200: #bae6fd;
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;
  --sky-700: #0369a1;

  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-bg-strong: rgba(255, 255, 255, 0.62);
  --glass-border: rgba(255, 255, 255, 0.75);
  --glass-border-soft: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 8px 32px rgba(14, 165, 233, 0.12),
    0 2px 8px rgba(3, 105, 161, 0.06);
  --glass-inset: inset 0 1px 1px rgba(255, 255, 255, 0.9),
    inset 0 -1px 1px rgba(14, 165, 233, 0.06);

  --text: #0c4a6e;
  --text-soft: #0369a1;
  --muted: #64748b;
  --success: #059669;
  --error: #e11d48;
  --radius: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  background: linear-gradient(160deg, #e8f7ff 0%, #d4efff 35%, #c8ecff 60%, #e0f4ff 100%);
}

/* —— Animated background —— */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.7;
  animation: float 14s ease-in-out infinite;
}

.orb-1 {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, #7dd3fc 0%, transparent 70%);
  top: -8%;
  left: -10%;
}

.orb-2 {
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, #a5f3fc 0%, transparent 70%);
  top: 40%;
  right: -15%;
  animation-delay: -4s;
}

.orb-3 {
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, #bae6fd 0%, transparent 70%);
  bottom: -5%;
  left: 20%;
  animation-delay: -8s;
}

.mesh {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.35) 1px,
    transparent 1px
  );
  background-size: 24px 24px;
  opacity: 0.5;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(20px, -24px) scale(1.05);
  }
  66% {
    transform: translate(-16px, 16px) scale(0.95);
  }
}

/* —— Layout —— */
.page {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* —— Glass panels —— */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.glass-inset {
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--glass-inset);
}

.glass-input {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.8),
    0 1px 3px rgba(14, 165, 233, 0.06);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.glass-input:focus-within {
  border-color: var(--sky-400);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2),
    inset 0 1px 2px rgba(255, 255, 255, 0.9);
}

/* —— Header —— */
.header {
  text-align: center;
  padding: 1.75rem 1.5rem;
  margin-bottom: 1.25rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  background: transparent;
}

.logo-img {
  display: block;
  width: auto;
  max-width: 340px;
  height: auto;
  max-height: 120px;
  object-fit: contain;
}

.header h1 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--text-soft);
  font-weight: 500;
  opacity: 0.85;
}

/* —— Card / Form —— */
.card {
  padding: 0;
  flex: 1;
  background: transparent;
  border: none;
  box-shadow: none;
}

/* Nền glass ôm cả form (3 ô + nhãn) */
#checkForm.check-form {
  position: relative;
  z-index: 1;
  overflow: visible;
  padding: 1rem 1rem 0.85rem;
  background: rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.search-wrap {
  position: relative;
  margin-bottom: 0;
  overflow: visible;
  z-index: 5;
}

.search-labels {
  display: grid;
  grid-template-columns: 1.15fr 1fr auto;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
  padding: 0 0.15rem;
}

.search-labels .field-label--spacer {
  visibility: hidden;
}

.search-bar {
  display: grid;
  grid-template-columns: 1.15fr 1fr auto;
  align-items: stretch;
  background: rgba(255, 255, 255, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 14px;
  overflow: visible;
}

.search-cell {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 50px;
}

.search-cell:not(:last-of-type)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 18%;
  height: 64%;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent,
    rgba(14, 165, 233, 0.22),
    transparent
  );
  pointer-events: none;
}

.search-cell-bank {
  z-index: 2;
}

.search-cell input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  font-weight: 500;
}

.search-cell input::placeholder {
  color: #94a3b8;
  font-weight: 400;
}

.search-cell input:focus {
  outline: none;
}

.search-cell:focus-within {
  background: rgba(255, 255, 255, 0.35);
}

.bank-select-wrap {
  position: relative;
  width: 100%;
}

.bank-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  width: 100%;
  z-index: 200;
  max-height: min(420px, 55vh);
  overflow-y: auto;
  overflow-x: hidden;
  list-style: none;
  padding: 0.4rem;
  margin: 0;
  box-shadow: 0 12px 40px rgba(14, 165, 233, 0.18);
}

.bank-dropdown.hidden {
  display: none;
}

.bank-dropdown li {
  padding: 0.65rem 0.85rem;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: 10px;
  color: var(--text);
  transition: background 0.15s;
  word-break: break-word;
}

.bank-dropdown li:hover,
.bank-dropdown li.active {
  background: rgba(56, 189, 248, 0.18);
}

.bank-dropdown li small {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 400;
  margin-top: 3px;
  line-height: 1.35;
  white-space: normal;
}

.btn-in-bar {
  margin: 0;
  min-width: 112px;
  padding: 0 1.25rem;
  border: none;
  border-radius: 0 17px 17px 0;
  white-space: nowrap;
  align-self: stretch;
  box-shadow: none;
}

.btn-in-bar:hover:not(:disabled) {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

.hint-row {
  margin: 0.65rem 0.15rem 0;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.15rem;
}

.field-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-left: 0.15rem;
}

.field input[type="text"] {
  width: 100%;
  padding: 0.85rem 1rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  font-weight: 500;
}

.field input::placeholder {
  color: #94a3b8;
  font-weight: 400;
}

.field input:focus {
  outline: none;
}

.hint {
  font-size: 0.8rem;
  color: var(--sky-600);
  font-weight: 500;
  padding-left: 0.15rem;
}

.hint.hidden {
  display: none;
}

.advanced {
  margin-bottom: 1.1rem;
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  color: var(--text-soft);
}

.advanced summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  user-select: none;
}

.advanced summary::-webkit-details-marker {
  display: none;
}

.advanced summary::before {
  content: "›";
  display: inline-block;
  margin-right: 0.4rem;
  transition: transform 0.2s;
}

.advanced[open] summary::before {
  transform: rotate(90deg);
}

.advanced[open] summary {
  margin-bottom: 0.85rem;
}

/* —— Button —— */
.btn-primary {
  position: relative;
  width: 100%;
  padding: 0.95rem 1rem;
  margin-top: 0.25rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(145deg, #38bdf8 0%, #0ea5e9 45%, #0284c7 100%);
  box-shadow: 0 10px 28px rgba(14, 165, 233, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.25) 50%,
    transparent 60%
  );
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(14, 165, 233, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-primary:hover:not(:disabled) .btn-shine {
  transform: translateX(100%);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

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

.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn-spinner.hidden {
  display: none;
}

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

/* —— Result —— */
.result {
  margin-top: 1.25rem;
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  animation: fadeUp 0.35s ease;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result.hidden {
  display: none;
}

.result.success {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(52, 211, 153, 0.45);
  box-shadow: 0 4px 20px rgba(5, 150, 105, 0.1), var(--glass-inset);
}

.result.error {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(251, 113, 133, 0.45);
  box-shadow: 0 4px 20px rgba(225, 29, 72, 0.08), var(--glass-inset);
}

.result-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.result-name {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--success);
  margin: 0.45rem 0 0.85rem;
  word-break: break-word;
  line-height: 1.3;
}

.result.error .result-name {
  color: var(--error);
  font-size: 1rem;
  font-weight: 600;
}

.result-meta {
  display: grid;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.result-meta strong {
  color: var(--text);
  font-weight: 600;
}

.result-error-title {
  font-weight: 700;
  color: var(--error);
  margin-bottom: 0.35rem;
}

.result-error-msg {
  color: var(--text-soft);
  line-height: 1.45;
}

/* —— Footer —— */
.footer {
  margin-top: 1.25rem;
  text-align: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-soft);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.status-pill:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

.status-pill::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #94a3b8;
  box-shadow: 0 0 8px rgba(148, 163, 184, 0.6);
  flex-shrink: 0;
}

.status-pill.ok::before {
  background: #34d399;
  box-shadow: 0 0 10px rgba(52, 211, 153, 0.7);
}

.status-pill.warn::before {
  background: #fbbf24;
  box-shadow: 0 0 10px rgba(251, 191, 36, 0.7);
}

/* Scrollbar */
.bank-dropdown::-webkit-scrollbar {
  width: 6px;
}

.bank-dropdown::-webkit-scrollbar-thumb {
  background: rgba(14, 165, 233, 0.25);
  border-radius: 3px;
}

@media (max-width: 520px) {
  .search-labels {
    grid-template-columns: 1fr 1fr;
  }

  .search-labels .field-label--spacer {
    display: none;
  }

  .search-bar {
    grid-template-columns: 1fr 1fr;
    border-radius: 12px;
  }

  #checkForm.check-form {
    padding: 0.85rem;
    border-radius: 18px;
  }

  .search-cell-bank::after {
    display: none;
  }

  .search-cell-account::after {
    display: none;
  }

  .btn-in-bar {
    grid-column: 1 / -1;
    border-radius: 0 0 15px 15px;
    min-height: 48px;
    width: 100%;
    box-shadow: 0 -1px 0 rgba(14, 165, 233, 0.1);
  }
}

@media (max-width: 380px) {
  .page {
    padding: 1.5rem 1rem 2rem;
  }

  .header h1 {
    font-size: 1.28rem;
  }
}