:root {
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  --input-min-height: 2.75rem;
  --input-radius: 10px;
  --control-padding: 0.625rem 0.875rem;
  --label-size: 0.8125rem;
  --space-page-x: 1rem;
  --space-section: 1rem;
  --app-header-height: 4.75rem;
}

/* Dark — rừng xanh */
html[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0f1a14;
  --bg-deep: #0a120e;
  --ink: #e8f3ec;
  --muted: #9bb5a4;
  --line: rgba(120, 180, 140, 0.22);
  --line-strong: rgba(94, 201, 138, 0.38);
  --card: rgba(18, 32, 24, 0.9);
  --card-solid: #152820;
  --accent: #6bcf8e;
  --accent-2: #95d5b2;
  --accent-soft: rgba(94, 201, 138, 0.14);
  --accent-soft-2: rgba(45, 106, 79, 0.22);
  --danger: #f07178;
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  --glow-cyan: 0 4px 20px rgba(12, 28, 20, 0.5);
  --glow-magenta: 0 2px 12px rgba(45, 106, 79, 0.25);
  --radius: 12px;
  --font-display: var(--font-sans);
  --input-bg: rgba(8, 16, 12, 0.55);
  --btn-primary-bg: linear-gradient(160deg, #2d6a4f 0%, #40916c 100%);
  --btn-primary-fg: #f0fdf4;
  --btn-secondary-bg: rgba(12, 24, 18, 0.65);
  --surface-muted: rgba(12, 24, 18, 0.55);
  --grid-line: rgba(94, 201, 138, 0.07);
  --heading-transform: none;
  --heading-spacing: -0.02em;
  --link-shadow: none;
  --heading-accent-shadow: none;
  --num-shadow: none;
  --focus-ring: rgba(107, 207, 142, 0.28);
  --nav-track-bg: rgba(6, 14, 10, 0.55);
  --nav-item-hover: rgba(94, 201, 138, 0.1);
  --nav-active-bg: rgba(45, 106, 79, 0.75);
  --nav-active-color: #ecfdf3;
  --nav-active-shadow: none;
  --chip-selected-bg: var(--nav-active-bg);
  --preview-bg: rgba(94, 201, 138, 0.08);
  --danger-btn-bg: rgba(240, 113, 120, 0.14);
  --danger-btn-fg: #fecdd3;
  --danger-btn-glow: 0 2px 12px rgba(240, 113, 120, 0.2);
  --error-msg-fg: #fecdd3;
  --error-msg-shadow: none;
  --body-bg:
    radial-gradient(ellipse 90% 55% at 0% -5%, rgba(45, 106, 79, 0.38), transparent 55%),
    radial-gradient(ellipse 65% 45% at 100% 0%, rgba(82, 183, 136, 0.14), transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 48%, #0a1610 100%);
  --forest-pattern: url("/assets/forest-pattern.svg");
  --forest-pattern-size: 200px 200px;
  --forest-pattern-opacity: 0.5;
  --forest-hills: url("/assets/forest-hills.svg");
  --forest-hills-opacity: 0.85;
}

/* Light — sáng, dễ đọc */
html[data-theme="light"] {
  color-scheme: light;

  --bg: #f3f0e8;
  --bg-deep: #f7f4ed;
  --ink: #1a1f1c;
  --muted: #5c635c;
  --line: #d4cec0;
  --line-strong: #c9c2b4;
  --card: rgba(255, 253, 247, 0.95);
  --card-solid: #fffdf7;
  --accent: #0f6b4c;
  --accent-2: #0a5240;
  --accent-soft: #d9efe6;
  --accent-soft-2: #e8f3ed;
  --danger: #b42318;
  --shadow: 0 10px 30px rgba(26, 31, 28, 0.08);
  --glow-cyan: none;
  --glow-magenta: none;
  --radius: 14px;
  --font-display: var(--font-sans);
  --input-bg: #fff;
  --btn-primary-bg: var(--accent);
  --btn-primary-fg: #fff;
  --btn-secondary-bg: #eef2ef;
  --surface-muted: #fff;
  --grid-line: transparent;
  --heading-transform: none;
  --heading-spacing: -0.025em;
  --link-shadow: none;
  --heading-accent-shadow: none;
  --num-shadow: none;
  --focus-ring: rgba(15, 107, 76, 0.22);
  --nav-track-bg: rgba(255, 253, 247, 0.85);
  --nav-item-hover: rgba(15, 107, 76, 0.07);
  --nav-active-bg: #fff;
  --nav-active-color: var(--accent);
  --nav-active-shadow: 0 1px 3px rgba(26, 31, 28, 0.08);
  --chip-selected-bg: var(--nav-active-bg);
  --preview-bg: var(--accent-soft);
  --danger-btn-bg: rgba(180, 35, 24, 0.1);
  --danger-btn-fg: var(--danger);
  --danger-btn-glow: none;
  --error-msg-fg: var(--danger);
  --error-msg-shadow: none;
  --body-bg:
    radial-gradient(circle at top left, #e7f3ec 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 100%);
  --forest-pattern: url("/assets/forest-pattern.svg");
  --forest-pattern-size: 220px 220px;
  --forest-pattern-opacity: 0.28;
  --forest-hills: url("/assets/forest-hills.svg");
  --forest-hills-opacity: 0.55;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  letter-spacing: -0.011em;
  color: var(--ink);
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  background: var(--body-bg);
  min-height: 100vh;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  opacity: var(--forest-pattern-opacity, 0);
  background-image: var(--forest-pattern, none);
  background-size: var(--forest-pattern-size, 200px 200px);
  background-repeat: repeat;
  mask-image: radial-gradient(ellipse 90% 75% at 50% 35%, black 15%, transparent 78%);
}

body::after {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: min(28vh, 220px);
  pointer-events: none;
  z-index: -1;
  opacity: var(--forest-hills-opacity, 0);
  background-image: var(--forest-hills, none);
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: min(1200px, 100%) auto;
  mask-image: linear-gradient(to top, black 25%, transparent 100%);
}

@media (prefers-reduced-motion: no-preference) {
  body::after {
    animation: forest-hills-drift 90s ease-in-out infinite alternate;
  }
}

@keyframes forest-hills-drift {
  from { background-position: 48% bottom; }
  to { background-position: 52% bottom; }
}

@media (prefers-reduced-motion: reduce) {
  body::after {
    animation: none;
  }
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--heading-spacing);
  text-transform: var(--heading-transform);
}

html[data-theme="light"] body {
  letter-spacing: -0.011em;
}

html[data-theme="dark"] .nav a,
html[data-theme="dark"] .nav-btn,
html[data-theme="dark"] .account-btn,
html[data-theme="dark"] .chip,
html[data-theme="dark"] button,
html[data-theme="dark"] .btn {
  text-transform: none;
  letter-spacing: -0.01em;
  font-family: var(--font-sans);
}

html[data-theme="dark"] button:not(.secondary):not(.danger):not(.burger-btn):not(.sidebar-close),
html[data-theme="dark"] .btn:not(.secondary):not(.danger) {
  box-shadow: var(--shadow);
}

html[data-theme="dark"] button:hover,
html[data-theme="dark"] .btn:hover {
  filter: brightness(1.06);
}


html[data-theme="dark"] .user-pill {
  color: var(--accent);
  box-shadow: none;
}

html[data-theme="dark"] .panel h2 {
  color: var(--ink);
  text-shadow: none;
  letter-spacing: -0.02em;
}

html[data-theme="dark"] th {
  text-transform: none;
  letter-spacing: 0.02em;
}


html[data-theme="light"] a {
  text-shadow: none;
}

html[data-theme="light"] .login-card::before {
  box-shadow: none;
}

html[data-theme="light"] .panel h2,
html[data-theme="light"] .panel-heading {
  color: var(--ink);
  text-shadow: none;
}

html[data-theme="light"] .panel::after {
  opacity: 0.25;
}

html[data-theme="light"] td.num {
  text-shadow: none;
  font-family: var(--font-sans);
}

html[data-theme="light"] .user-pill {
  box-shadow: none;
  font-family: var(--font-sans);
  color: var(--accent);
}

html[data-theme="light"] .msg.error {
  text-shadow: none;
  color: var(--danger);
}


html[data-theme="light"] .chip-mini {
  color: var(--ink);
  background: #eef2ef;
  border-color: var(--line);
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.5rem var(--space-page-x) 3rem;
}

/* Dashboard: sidebar dọc + vùng nội dung */
.app-shell {
  display: flex;
  min-height: 100vh;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.sidebar {
  width: 15rem;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 0.875rem 1.25rem;
  border-right: 1px solid var(--line);
  background: var(--card-solid);
  position: sticky;
  top: 0;
  align-self: flex-start;
  height: 100vh;
  overflow-y: auto;
  z-index: 20;
}

.sidebar-brand {
  height: var(--app-header-height);
  min-height: var(--app-header-height);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 0.375rem;
  border-bottom: 1px solid var(--line);
  margin: 0 -0.875rem 0.75rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.sidebar-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.sidebar-close {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  min-height: 2.5rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--input-radius);
  background: var(--btn-secondary-bg);
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1;
  box-shadow: none;
}

.burger-btn {
  display: none;
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--input-radius);
  background: var(--btn-secondary-bg);
  color: var(--ink);
  box-shadow: none;
  align-items: center;
  justify-content: center;
}

.burger-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 1.125rem;
}

.burger-icon span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 1px;
  background: currentColor;
}

.sidebar-overlay {
  display: none;
}

.sidebar-brand-link {
  display: block;
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
}

.sidebar-brand-link:hover {
  color: var(--accent);
}

.sidebar-tagline {
  margin: 0.25rem 0 0;
  font-size: var(--text-xs);
  color: var(--muted);
  line-height: var(--leading-normal);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  flex: 1;
  padding: 0.25rem 0;
}

.sidebar-link {
  display: flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0.5rem 0.625rem;
  border-radius: var(--input-radius);
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.15s ease, color 0.15s ease;
  border: none;
  background: transparent;
  box-shadow: none;
}

.sidebar-link:hover {
  background: var(--nav-item-hover);
  color: var(--ink);
  text-decoration: none;
}

.sidebar-link.active {
  background: var(--nav-active-bg);
  color: var(--nav-active-color);
  font-weight: var(--weight-semibold);
  box-shadow: var(--nav-active-shadow);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.sidebar-footer .user-pill {
  width: 100%;
  justify-content: flex-start;
}

.sidebar-footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.sidebar-footer-actions .theme-toggle-btn,
.sidebar-footer-actions .sidebar-logout {
  flex: 1;
  min-width: 0;
}

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: transparent;
}

.topbar {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  height: var(--app-header-height);
  min-height: var(--app-header-height);
  box-sizing: border-box;
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--line);
  background: var(--card-solid);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-heading {
  min-width: 0;
  flex: 1 1 auto;
}

.topbar-heading h1 {
  margin: 0;
  font-size: clamp(1.125rem, 3vw, var(--text-xl));
  line-height: var(--leading-tight);
}

.topbar-heading .sub {
  margin: 0.2rem 0 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-msg {
  flex: 0 1 auto;
  max-width: min(420px, 40%);
  text-align: right;
  min-height: 0;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: none;
  padding: 1.25rem 1.5rem 2.5rem;
}

.hidden { display: none !important; }

a { color: var(--accent); text-decoration: none; text-shadow: var(--link-shadow); }
a:hover { color: var(--accent-2); text-decoration: none; }

#login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.login-card {
  width: min(420px, 100%);
  background: var(--card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: none;
}

.login-card h1 { margin: 0; font-size: var(--text-2xl); }
.login-card p {
  margin: 8px 0 22px;
  color: var(--muted);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.account-grid { display: grid; gap: 10px; }

.login-password {
  margin-top: 18px;
  text-align: left;
}

.login-password .pwd-account {
  margin: 0 0 12px;
  font-size: var(--text-sm);
  color: var(--muted);
}

.login-password .pwd-account strong {
  color: var(--accent);
  font-weight: var(--weight-semibold);
}

.login-password .form-actions {
  margin-top: 12px;
}

.login-password .login-error {
  margin-top: 10px;
  font-size: var(--text-sm);
  color: var(--danger);
  min-height: 1.2em;
}

.account-btn {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.account-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}

header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}

.page-header__brand {
  min-width: 0;
  flex: 1 1 16rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.25rem, 4vw, var(--text-xl));
  font-weight: var(--weight-semibold);
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
}

.sub {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  font-weight: var(--weight-normal);
  max-width: 36rem;
}

.nav {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  margin: 14px 0 0;
  padding: 4px;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: var(--nav-track-bg);
  backdrop-filter: blur(8px);
}

.nav a, .nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: var(--radius);
  padding: 9px 14px;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  box-shadow: none;
}

.nav a:hover, .nav-btn:hover {
  color: var(--ink);
  background: var(--nav-item-hover);
  text-decoration: none;
}

.nav a.active {
  background: var(--nav-active-bg);
  color: var(--nav-active-color);
  font-weight: var(--weight-semibold);
  box-shadow: var(--nav-active-shadow);
  text-shadow: none;
}

.user-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.user-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--input-radius);
  padding: 0.5rem 0.75rem;
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  box-shadow: none;
}

.user-pill span {
  font-weight: var(--weight-semibold);
  color: var(--accent);
}

.totals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.total-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}

.total-card span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 4px;
}

.total-card strong {
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
}

.panel {
  background: var(--card-solid);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: var(--space-section);
  position: relative;
}

.panel::after {
  display: none;
}

.panel h2,
.panel-heading {
  margin: 0 0 1rem;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.02em;
  color: var(--ink);
  text-shadow: none;
}

.toolbar .panel-heading,
.toolbar h2 {
  margin: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 10px;
  align-items: end;
}

.rate-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 10px;
  align-items: end;
}

.money-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  align-items: end;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  font-size: var(--label-size);
  font-weight: var(--weight-semibold);
  color: var(--muted);
  line-height: var(--leading-tight);
  letter-spacing: 0;
}

input, select, button, textarea { font: inherit; }

input, select {
  width: 100%;
  min-height: var(--input-min-height);
  border: 1px solid var(--line);
  border-radius: var(--input-radius);
  padding: var(--control-padding);
  background: var(--input-bg);
  color: var(--ink);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.65;
}

select {
  padding-right: 2.25rem;
  background-color: var(--input-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' viewBox='0 0 16 16'%3E%3Cpath stroke='%235c635c' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem;
}

html[data-theme="dark"] select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' viewBox='0 0 16 16'%3E%3Cpath stroke='%239bb5a4' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.hint {
  font-size: var(--text-xs);
  color: var(--muted);
  margin: 10px 0 0;
  line-height: var(--leading-relaxed);
}

.rate-meta {
  margin-top: 10px;
  font-size: var(--text-sm);
  color: var(--accent);
  line-height: var(--leading-relaxed);
  font-variant-numeric: tabular-nums;
}

.preview {
  margin-top: 12px;
  padding: 0.875rem 1rem;
  border-radius: var(--input-radius);
  background: var(--preview-bg);
  border: 1px solid var(--line);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  font-variant-numeric: tabular-nums;
}

button, .btn {
  border: 1px solid transparent;
  border-radius: var(--input-radius);
  min-height: var(--input-min-height);
  padding: 0 1rem;
  cursor: pointer;
  background: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  transition: filter 0.15s, border-color 0.15s, background 0.15s;
}

button:hover, .btn:hover {
  filter: brightness(1.05);
}

button.secondary, .btn.secondary {
  background: var(--btn-secondary-bg);
  border-color: var(--line-strong);
  color: var(--ink);
  box-shadow: none;
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-sans);
}

html[data-theme="light"] button,
html[data-theme="light"] .btn {
  text-transform: none;
  letter-spacing: -0.01em;
  font-family: var(--font-sans);
  box-shadow: none;
}

html[data-theme="light"] button:not(.secondary):not(.danger):not(.page-btn):not(.chip):not(.sidebar-link):not(.account-btn):not(.burger-btn):not(.sidebar-close),
html[data-theme="light"] .btn:not(.secondary):not(.page-btn) {
  color: #fff;
}

html[data-theme="light"] button:hover,
html[data-theme="light"] .btn:hover {
  filter: brightness(1.04);
}

html[data-theme="light"] .account-btn {
  text-transform: none;
  letter-spacing: 0;
}

button.secondary:hover, .btn.secondary:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--nav-item-hover);
}

button.danger {
  background: var(--danger-btn-bg);
  border-color: var(--danger);
  color: var(--danger-btn-fg);
  box-shadow: var(--danger-btn-glow);
}

button:disabled { opacity: 0.5; cursor: not-allowed; box-shadow: none; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.msg {
  min-height: 1.2em;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: var(--leading-normal);
  color: var(--accent);
}

.msg.error { color: var(--error-msg-fg); text-shadow: var(--error-msg-shadow); }

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

/* Chỉ hiện trên mobile (card compact) */
.cell-meta {
  display: none;
}

th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--muted);
  font-weight: var(--weight-semibold);
}

td {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

td.num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  font-weight: var(--weight-semibold);
  font-family: var(--font-sans);
  color: var(--ink);
  text-shadow: var(--num-shadow);
}

.cat {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: none;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
  letter-spacing: 0;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 6px;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  max-width: 100%;
}

.chip {
  border: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--ink);
  border-radius: var(--input-radius);
  padding: 0.5rem 0.875rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  min-height: 2.5rem;
  box-shadow: none;
}

.chip:hover {
  color: var(--ink);
  border-color: var(--accent);
  background: var(--nav-item-hover);
}

.chip.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: var(--weight-semibold);
  box-shadow: none;
}

html[data-theme="dark"] .chip.selected {
  background: var(--accent-soft);
  color: var(--accent-2);
}

html[data-theme="light"] .chip.selected {
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: none;
}

.chip-row {
  margin-bottom: 12px;
}

.chip-row > span {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--muted);
  margin-bottom: 6px;
}

.chips-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chip-mini {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  border: none;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
}

.rate-tag {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--muted);
}

.actions { display: flex; gap: 6px; }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 28px 10px;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}

.pagination .pages {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.pagination .info {
  font-size: var(--text-sm);
  color: var(--muted);
}

.pagination button.page-btn {
  min-width: 2.375rem;
  padding: 0.5rem 0.75rem;
  background: var(--btn-secondary-bg);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-weight: var(--weight-medium);
  box-shadow: none;
}

.pagination button.page-btn:hover:not(:disabled) {
  filter: none;
  background: var(--nav-item-hover);
  border-color: var(--accent);
  color: var(--ink);
}

.pagination button.page-btn.active {
  background: var(--accent);
  color: var(--btn-primary-fg);
  border-color: var(--accent);
  box-shadow: none;
  font-weight: var(--weight-semibold);
}

html[data-theme="light"] .pagination button.page-btn {
  background: #fff;
  color: var(--ink);
  border-color: var(--line-strong);
}

html[data-theme="light"] .pagination button.page-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

html[data-theme="dark"] .pagination button.page-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ecfdf3;
}

.pagination button.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  color: var(--muted);
}

textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--input-radius);
  padding: var(--control-padding);
  background: var(--input-bg);
  color: var(--ink);
  font: inherit;
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  resize: vertical;
  min-height: 7.5rem;
}

textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.audit-detail {
  display: block;
  max-width: 420px;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  color: var(--muted);
}

.agent-result {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  max-height: 480px;
  overflow: auto;
}

html[data-theme="dark"] .agent-result {
  box-shadow: inset 0 0 24px rgba(45, 106, 79, 0.12);
}

.theme-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.login-theme-toggle {
  justify-content: flex-end;
  margin-bottom: 8px;
}

.theme-toggle-btn {
  min-width: auto;
  padding: 8px 12px;
  font-size: var(--text-xs);
}

.toolbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
}

.filter-field {
  min-width: 160px;
  flex: 1;
}

.form-actions {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Mobile: dashboard layout + 16px inputs (tránh iOS zoom) */
@media (max-width: 640px) {
  :root {
    --space-page-x: 1rem;
    --space-section: 0.875rem;
    --input-min-height: 3rem;
    --control-padding: 0.75rem 0.875rem;
  }

  body {
    font-size: var(--text-base);
    letter-spacing: -0.014em;
  }

  body::before {
    opacity: calc(var(--forest-pattern-opacity, 0) * 0.55);
  }

  body::after {
    height: min(22vh, 160px);
    opacity: calc(var(--forest-hills-opacity, 0) * 0.65);
  }

  input, select, textarea {
    font-size: 1rem;
  }

  .wrap {
    padding: 1rem var(--space-page-x) max(1.5rem, env(safe-area-inset-bottom));
  }

  .sidebar-tagline {
    display: none;
  }

  .sidebar-link {
    min-height: 2.75rem;
    font-size: var(--text-base);
  }

  .topbar-heading h1 {
    font-size: var(--text-lg);
  }

  .sub {
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
  }

  #login-screen {
    padding: 1rem;
    align-items: flex-start;
    padding-top: max(1.5rem, env(safe-area-inset-top));
  }

  .login-card {
    width: 100%;
    padding: 1.25rem 1rem;
    text-align: left;
  }

  .login-card h1 {
    font-size: var(--text-xl);
  }

  .panel {
    padding: 1rem;
    margin-bottom: var(--space-section);
    border-radius: var(--radius);
  }

  .panel h2,
  .panel-heading {
    font-size: var(--text-base);
    margin-bottom: 0.875rem;
  }

  .chip-group {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    gap: 0.5rem;
  }

  .chip {
    flex: 1 1 calc(33.333% - 0.5rem);
    min-width: 5rem;
    min-height: 2.75rem;
    font-size: var(--text-sm);
  }

  button, .btn, .account-btn {
    min-height: 3rem;
    font-size: var(--text-base);
  }

  .theme-toggle-btn {
    min-height: 2.5rem;
    font-size: var(--text-sm);
    padding: 0.5rem 0.75rem;
  }

  .touch-btn {
    min-width: 5.5rem;
  }

  .toolbar-stack {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .toolbar-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.625rem;
  }

  .filter-field {
    min-width: 0;
    width: 100%;
  }

  .filter-field select {
    width: 100%;
  }

  .btn-block-mobile {
    width: 100%;
  }

  .form-grid button,
  .rate-form button,
  .panel form > div[style*="flex"] .btn,
  .panel form > div[style*="flex"] button {
    width: 100%;
  }

  .pagination {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .pagination .pages {
    justify-content: center;
    flex-wrap: wrap;
  }

  .pagination .info {
    text-align: center;
    font-size: var(--text-sm);
  }

  .pagination button.page-btn {
    min-width: 2.75rem;
    min-height: 2.75rem;
  }

  .table-cards-mobile {
    overflow-x: visible;
  }

  .table-cards-mobile table {
    min-width: 0;
    width: 100%;
  }

  .table-cards-mobile thead {
    display: none;
  }

  .table-cards-mobile tbody tr.table-empty td {
    display: block;
    border: none;
    padding: 2rem 0.5rem;
    font-size: var(--text-sm);
  }

  .table-cards-mobile tbody tr.table-empty td::before {
    display: none;
  }

  /* Expense mobile:
     1) title | amount | xóa
     2) người chi · chi cho
     3) ngày + giờ */
  .table-cards-mobile tbody tr.expense-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 7.25rem 2.75rem;
    grid-template-areas:
      "title  amount  actions"
      "people people  people"
      "when   when    when";
    column-gap: 0.5rem;
    row-gap: 0.2rem;
    align-items: center;
    margin: 0;
    padding: 0.8rem 0;
    border: none;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

  .table-cards-mobile tbody tr.expense-row:last-child {
    border-bottom: none;
  }

  .table-cards-mobile tbody tr.expense-row > td {
    display: none;
    border: none;
    padding: 0;
  }

  .table-cards-mobile tbody tr.expense-row > td::before {
    display: none !important;
  }

  .table-cards-mobile tbody tr.expense-row > td.cell-title {
    display: block;
    grid-area: title;
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    letter-spacing: -0.02em;
    color: var(--ink);
    line-height: 1.35;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .table-cards-mobile tbody tr.expense-row > td.cell-amount {
    display: block;
    grid-area: amount;
    width: 100%;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    font-variant-numeric: tabular-nums;
    font-family: var(--font-sans);
    color: var(--accent);
    text-align: right;
    white-space: nowrap;
    line-height: 1.35;
    letter-spacing: -0.01em;
  }

  .table-cards-mobile tbody tr.expense-row > td.cell-meta-people {
    display: block;
    grid-area: people;
    font-size: var(--text-xs);
    color: var(--muted);
    line-height: 1.4;
    min-width: 0;
    white-space: normal;
    word-break: break-word;
  }

  .table-cards-mobile tbody tr.expense-row > td.cell-meta-when {
    display: block;
    grid-area: when;
    font-size: var(--text-xs);
    color: var(--muted);
    line-height: 1.4;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .table-cards-mobile tbody tr.expense-row > td.cell-actions {
    display: flex;
    grid-area: actions;
    justify-content: flex-end;
    align-items: center;
    width: 100%;
  }

  .table-cards-mobile tbody tr.expense-row td.cell-actions .actions {
    width: 100%;
    display: flex;
    justify-content: flex-end;
  }

  .table-cards-mobile tbody tr.expense-row td.cell-actions button {
    width: 2.5rem;
    min-width: 2.5rem;
    min-height: 2.5rem;
    padding: 0;
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    background: transparent;
    border: none;
    box-shadow: none;
    color: var(--danger);
    justify-content: center;
  }

  .table-cards-mobile tbody tr.expense-row td.cell-actions button:hover {
    filter: none;
    background: var(--danger-btn-bg);
  }

  /* Rate rows: compact label/value vẫn giữ */
  .table-cards-mobile tbody tr.rate-row {
    display: block;
    margin-bottom: 0.5rem;
    padding: 0.75rem 0;
    border: none;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

  .table-cards-mobile tbody tr.rate-row td {
    display: grid;
    grid-template-columns: 7rem 1fr;
    align-items: baseline;
    gap: 0.35rem 0.75rem;
    padding: 0.2rem 0;
    border-bottom: none;
    text-align: left;
    font-size: var(--text-sm);
  }

  .table-cards-mobile tbody tr.rate-row td::before {
    content: attr(data-label);
    font-weight: var(--weight-medium);
    color: var(--muted);
    font-size: var(--text-xs);
  }

  .table-cards-mobile tbody tr.rate-row td.cell-title {
    display: block;
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    padding: 0 0 0.35rem;
    border-bottom: none;
  }

  .table-cards-mobile tbody tr.rate-row td.cell-title::before,
  .table-cards-mobile tbody tr.rate-row td.cell-actions::before,
  .table-cards-mobile tbody tr.rate-row td[data-label=""]::before {
    display: none;
  }

  .table-cards-mobile tbody tr.rate-row td.cell-actions {
    display: flex;
    justify-content: flex-end;
    padding-top: 0.35rem;
  }

  .panel:has(.table-cards-mobile) {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .agent-result {
    max-height: 50vh;
    font-size: var(--text-sm);
    padding: 0.875rem;
  }

  .form-actions {
    flex-direction: column;
    gap: 0.625rem;
  }

  .form-actions .btn,
  .form-actions button {
    width: 100%;
  }

  .form-grid,
  .rate-form,
  .money-row {
    gap: 0.875rem;
  }

  .hint {
    font-size: var(--text-sm);
  }
}

@media (max-width: 900px) {
  .form-grid, .rate-form, .money-row { grid-template-columns: 1fr; }
  .totals { grid-template-columns: 1fr; }

  .app-shell {
    flex-direction: column;
    position: relative;
  }

  .burger-btn {
    display: inline-flex;
  }

  .sidebar-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(18rem, 86vw);
    height: 100vh;
    max-height: 100vh;
    z-index: 60;
    padding: 0 0.875rem 1.25rem;
    border-right: 1px solid var(--line);
    border-bottom: none;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    box-shadow: none;
  }

  html.sidebar-open .sidebar {
    transform: translateX(0);
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.18);
  }

  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 50;
    background: rgba(8, 14, 11, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  html.sidebar-open .sidebar-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .sidebar-nav {
    flex-direction: column;
  }

  .sidebar-footer-actions {
    width: 100%;
  }

  .topbar {
    padding: 0 1rem;
    gap: 0.625rem;
  }

  .topbar-heading {
    min-width: 0;
  }

  .topbar-heading .sub {
    display: none;
  }

  .main-content {
    padding: 1rem 1rem 2rem;
  }
}

.confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(8, 14, 11, 0.72);
  backdrop-filter: blur(4px);
}

html[data-theme="light"] .confirm-overlay {
  background: rgba(26, 31, 28, 0.45);
}

.confirm-overlay.hidden {
  display: none !important;
}

.confirm-dialog {
  width: min(420px, 100%);
  margin: 0;
  padding: 20px 22px;
  background: var(--card-solid);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.confirm-title {
  margin: 0 0 10px;
  font-size: var(--text-lg);
}

.confirm-message {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  white-space: pre-line;
}

.confirm-actions {
  margin: 0;
  justify-content: flex-end;
}