:root {
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-sub: #475569;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #059669;
  --success-bg: #ecfdf5;
  --success-border: #a7f3d0;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --radius: 10px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  padding: 24px 16px 48px;
  padding-top: max(16px, env(safe-area-inset-top));
  padding-left: max(12px, env(safe-area-inset-left));
  padding-right: max(12px, env(safe-area-inset-right));
  padding-bottom: max(32px, env(safe-area-inset-bottom));
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

header {
  text-align: center;
  padding-bottom: 4px;
}

header h1 {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

header p {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-top: 4px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}

.section-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form Styling */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 540px) {
  .form-grid {
    grid-template-columns: 1fr 1fr;
  }
  .col-span-2 {
    grid-column: span 2;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-sub);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

input[type="text"],
input[type="number"],
input[type="datetime-local"],
input[type="date"],
input[type="time"] {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 10px 12px;
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: #fff;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  min-height: 42px;
}

/* Chuẩn hóa hiển thị chữ bên trong input date/time trên iOS Safari */
input[type="date"]::-webkit-date-and-time-value,
input[type="time"]::-webkit-date-and-time-value {
  text-align: left;
  min-height: 1.25em;
}

input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.input-suffix {
  position: absolute;
  right: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
  font-weight: 500;
}

.has-suffix {
  padding-right: 48px !important;
}

.helper-text {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.error-msg {
  font-size: 0.78rem;
  color: var(--danger);
  margin-top: 2px;
  display: none;
}

.input-row-actions {
  display: flex;
  gap: 8px;
}

.btn-secondary-sm {
  padding: 0 10px;
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--text-sub);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease;
}

.btn-secondary-sm:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

/* Quick Presets & Time Picker Enhancement */
.preset-chips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 4px;
  margin-bottom: 10px;
}

.chip-btn {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  text-align: center;
}

.chip-btn:hover {
  background: #f1f5f9;
  color: var(--text-main);
  border-color: #cbd5e1;
}

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

.chip-btn.active {
  background: #eff6ff;
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}

.date-time-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
}

.date-time-row > div {
  min-width: 0;
  width: 100%;
}



.input-sublabel {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 3px;
  display: block;
}

.lunch-section {
  margin-top: 2px;
  padding-top: 12px;
  border-top: 1px solid #f1f5f9;
}

/* Buttons */
.button-group {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.btn {
  flex: 1;
  padding: 11px 16px;
  border-radius: 6px;
  font-size: 0.925rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  transition: background-color 0.15s ease, transform 0.05s ease;
}

.btn:active {
  transform: scale(0.99);
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

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

.btn-secondary {
  background-color: #f1f5f9;
  color: var(--text-sub);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: #e2e8f0;
  color: var(--text-main);
}

/* Realtime Ticker (Dashboard thống nhất, gọn gàng) */
.ticker-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
}

.tracker-top-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 8px;
}

.ticker-status-pill {
  display: none;
}

.btn-change-time {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  color: var(--text-sub);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.btn-change-time svg {
  flex-shrink: 0;
  stroke: var(--text-muted);
  transition: stroke 0.15s ease;
}

.btn-change-time:hover {
  background: #f1f5f9;
  color: var(--text-main);
  border-color: #cbd5e1;
}

.btn-change-time:hover svg {
  stroke: var(--text-main);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--success);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.7);
  }
  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 6px rgba(5, 150, 105, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(5, 150, 105, 0);
  }
}

.ticker-hero {
  margin-bottom: 10px;
}

.ticker-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.ticker-amount {
  font-size: clamp(1.85rem, 7.5vw, 2.6rem);
  font-weight: 700;
  color: #059669;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1.15;
  word-break: break-word;
}

/* Thời gian đã làm: căn giữa cân đối */
.progress-timer-center {
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 6px;
  margin: 16px 0 10px 0;
  cursor: pointer;
}

.progress-timer-center strong {
  color: var(--text-main);
  font-size: 0.96rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  transition: color 0.15s ease;
}

.progress-timer-center:hover strong {
  color: var(--primary);
}

.ticker-timer-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Thanh tiến độ có % nằm bên trong */
.progress-container {
  margin-top: 4px;
  width: 100%;
}

.progress-bar-bg {
  width: 100%;
  height: 22px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #059669);
  width: 0%;
  transition: width 0.3s ease;
  border-radius: 9999px;
}

.progress-percent-inside {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-weight: 700;
  color: #0f172a;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  pointer-events: none;
  text-shadow: 0 0 4px rgba(255, 255, 255, 0.95), 0 0 2px rgba(255, 255, 255, 0.95);
  z-index: 2;
}

/* Phân cách với Tỷ lệ quy đổi xa hơn rõ ràng */
.tracker-divider {
  height: 1px;
  background: #f1f5f9;
  margin: 32px 0 18px 0;
}

.metrics-subheading {
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-align: left;
  margin-bottom: 8px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

@media (min-width: 540px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  background: #f8fafc;
  border: 1px solid #f1f5f9;
  border-radius: 8px;
  padding: 10px 8px;
  text-align: center;
}

.metric-unit {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.metric-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
}

.metric-currency {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 2px;
}

footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 10px;
}

.future-alert,
.lunch-alert,
.completed-alert {
  display: none;
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
}

.future-alert {
  background: #fffbeb;
  border: 1px solid #fef3c7;
  color: #b45309;
}

.lunch-alert {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
}

.completed-alert {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  font-weight: 600;
  text-align: center;
}

/* Lunch break configuration */
.lunch-toggle-header {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.toggle-switch-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.toggle-switch-wrapper input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

.toggle-switch-track {
  width: 36px;
  height: 20px;
  background-color: #cbd5e1;
  border-radius: 9999px;
  position: relative;
  transition: background-color 0.2s ease;
  display: inline-block;
  flex-shrink: 0;
}

.toggle-switch-thumb {
  width: 16px;
  height: 16px;
  background-color: #ffffff;
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.toggle-switch-wrapper input[type="checkbox"]:checked + .toggle-switch-track {
  background-color: var(--primary);
}

.toggle-switch-wrapper input[type="checkbox"]:checked + .toggle-switch-track .toggle-switch-thumb {
  transform: translateX(16px);
}

.toggle-switch-title {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
}

.hidden {
  display: none !important;
}

/* Compact button to toggle configuration */
.compact-bar {
  display: flex;
  justify-content: center;
  margin-top: 4px;
}

.btn-compact-config {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 8px 18px;
  border-radius: 9999px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-sub);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.btn-compact-config:hover {
  background: #f8fafc;
  color: var(--text-main);
  border-color: #94a3b8;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-compact-config:active {
  transform: translateY(0);
}

.config-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.config-header-row .section-title {
  margin-bottom: 0;
}

.btn-close-config {
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-sub);
  cursor: pointer;
  padding: 5px 12px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.btn-close-config:hover {
  background: #e2e8f0;
  color: var(--text-main);
  border-color: #cbd5e1;
}

/* ========================================================
   RESPONSIVE ENHANCEMENTS CHO TẤT CẢ CÁC DÒNG ĐIỆN THOẠI
   (Từ iPhone SE/mini/Galaxy Fold đến iPhone Pro Max/Ultra)
======================================================== */

@media (max-width: 768px) {
  /* Ngăn ngừa iOS Safari tự động phóng to khi chạm vào ô input văn bản/số */
  input[type="text"],
  input[type="number"] {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .container {
    gap: 14px;
  }

  header h1 {
    font-size: 1.45rem;
  }

  header p {
    font-size: 0.85rem;
  }

  .card,
  .ticker-card {
    padding: 16px 14px;
    border-radius: 12px;
  }

  .btn {
    padding: 12px 14px;
    font-size: 0.9rem;
    min-height: 44px;
  }

  .button-group {
    gap: 8px;
  }

  .preset-chips {
    gap: 6px;
  }

  .chip-btn {
    padding: 8px 6px;
    font-size: 0.82rem;
    min-height: 38px;
  }

  /* Phân bổ tỷ lệ cột chuẩn để 'ngày 9 thg 9, 2026' trên iPhone không bao giờ bị tràn */
  .date-time-row {
    grid-template-columns: 105px minmax(0, 1fr);
    gap: 8px;
  }

  #lunchTimeRow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .date-time-row input {
    padding: 9px 8px;
    font-size: 0.9rem;
  }

  .metric-card {
    padding: 10px 6px;
  }

  .metric-val {
    font-size: 1rem;
  }

  .metric-unit {
    font-size: 0.75rem;
  }
}

/* Điện thoại màn hình vừa & nhỏ (iPhone SE 2/3, iPhone 12/13 mini, Galaxy A/S nhỏ: <= 375px) */
@media (max-width: 375px) {
  .container {
    gap: 12px;
  }

  header h1 {
    font-size: 1.32rem;
  }

  .card,
  .ticker-card {
    padding: 14px 12px;
  }

  .ticker-amount {
    font-size: clamp(1.6rem, 7.5vw, 1.95rem);
  }

  .progress-timer-center strong {
    font-size: 0.9rem;
  }

  .progress-timer-center .ticker-timer-label {
    font-size: 0.78rem;
  }

  .progress-bar-bg {
    height: 20px;
  }

  .progress-percent-inside {
    font-size: 0.72rem;
  }

  .metric-val {
    font-size: 0.92rem;
  }

  .metric-currency {
    font-size: 0.7rem;
  }

  .btn-close-config {
    font-size: 0.76rem;
    padding: 4px 8px;
  }

  .section-title {
    font-size: 0.88rem;
  }

  .toggle-switch-title {
    font-size: 0.82rem;
  }
}

/* Điện thoại màn hình siêu hẹp (iPhone SE đời đầu, màn phụ gập Galaxy Fold: <= 340px) */
@media (max-width: 340px) {
  body {
    padding-left: 6px;
    padding-right: 6px;
  }

  .card,
  .ticker-card {
    padding: 12px 8px;
  }

  header h1 {
    font-size: 1.2rem;
  }

  .ticker-amount {
    font-size: 1.55rem;
  }

  .chip-btn {
    padding: 6px 2px;
    font-size: 0.74rem;
  }

  .date-time-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  #lunchTimeRow {
    grid-template-columns: 1fr;
  }

  .date-time-row input {
    padding: 8px 6px;
    font-size: 0.85rem;
  }

  .metric-card {
    padding: 8px 2px;
  }

  .metric-val {
    font-size: 0.85rem;
  }
}