:root {
  --color-navy: #0D1B2A;
  --color-navy-2: #12385F;
  --color-primary: #0EA896;
  --color-primary-dark: #087F73;
  --color-primary-light: #88D4C8;
  --color-primary-bg: #E9F8F6;
  --color-warning: #F2B14C;
  --color-warning-bg: #FFF4DE;
  --color-danger: #D9534F;
  --color-danger-bg: #FDECEC;
  --color-success: #29A36A;
  --color-success-bg: #E9F7EF;
  --color-info: #3C8DBC;
  --color-info-bg: #EBF5FA;
  --color-text: #0D1B2A;
  --color-text-secondary: #586675;
  --color-text-muted: #8995A2;
  --color-background: #F7F8FA;
  --color-surface: #FFFFFF;
  --color-surface-soft: #F3F6F8;
  --color-border: #E6ECF2;
  --color-border-strong: #CCD6DF;

  --font-heading: "Manrope", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 3px rgba(13, 27, 42, 0.06);
  --shadow-md: 0 4px 14px rgba(13, 27, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(13, 27, 42, 0.12);
  --transition-normal: 200ms ease;
  --header-height: 64px;

  /* aliases used by layout */
  --bg: var(--color-background);
  --fg: var(--color-text);
  --muted: var(--color-text-muted);
  --accent: var(--color-primary);
  --card: var(--color-surface);
  --line: var(--color-border);
  --warn: var(--color-warning);
  --bad: var(--color-danger);
  --ok: var(--color-success);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-background);
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  margin: 0 0 0.6rem;
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); font-weight: 700; }
h3 { font-size: var(--font-size-lg); font-weight: 600; }

.muted { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.hidden { display: none !important; }

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background:
    radial-gradient(900px 420px at 0% 0%, rgba(14, 168, 150, 0.12), transparent 60%),
    radial-gradient(700px 380px at 100% 100%, rgba(18, 56, 95, 0.08), transparent 55%),
    var(--color-background);
}
.auth-card { width: min(420px, 100%); text-align: center; }
.auth-card .brand-lockup { justify-content: center; margin-bottom: 0.35rem; }
.auth-card h1 { font-size: 1.35rem; margin-top: 0.75rem; }
.auth-card label { text-align: left; }
.auth-tagline {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin: 0 0 1.1rem;
}
.auth-links { margin-top: 1rem; color: var(--color-text-secondary); font-size: var(--font-size-sm); }

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
}
.brand-lockup img.logo {
  height: 40px;
  width: auto;
  display: block;
}
.brand-lockup .brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
}
.brand-lockup .brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.brand-lockup .brand-name .ruc { color: var(--color-navy); }
.brand-lockup .brand-name .ap { color: var(--color-primary); }
.brand-lockup .brand-sub {
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.card, .page, .modal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6, 1.25rem);
}

label {
  display: block;
  margin: 0.55rem 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

input, select, button {
  font: inherit;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  transition: var(--transition-normal);
}
select, input {
  width: 100%;
  margin-top: 0.25rem;
  height: 42px;
  padding: 0 12px;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 168, 150, 0.12);
}

button {
  background: var(--color-primary);
  border: none;
  cursor: pointer;
  color: #fff;
  font-weight: 600;
  font-size: var(--font-size-sm);
  height: 42px;
  padding: 0 20px;
  width: auto;
}
button:hover { background: var(--color-primary-dark); }
button.ghost {
  background: #fff;
  color: var(--color-navy);
  border: 1px solid var(--color-border-strong);
}
button.ghost:hover { background: var(--color-surface-soft); }
button.link {
  background: none;
  border: none;
  color: var(--color-primary);
  padding: 0;
  height: auto;
  font-weight: 600;
  width: auto;
}
button.link:hover { background: none; text-decoration: underline; }
.btn-block { width: 100%; margin-top: 0.75rem; }

.row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.85rem; }
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.page-head h2 { margin: 0; }

.app-shell { min-height: 100vh; display: flex; flex-direction: column; background: var(--color-background); }
.topbar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.65rem 1rem;
  padding: 0.65rem 1rem;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.who {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  justify-self: end;
}
.period-pick {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.period-pick select {
  flex: 1;
  min-width: 0;
  max-width: 22rem;
  margin: 0;
}
.period-pick input[type="month"] {
  width: 10.5rem;
  margin: 0;
  flex: 0 0 auto;
}

.empty {
  text-align: center;
  padding: 2.2rem 1rem;
}
.empty p { margin: 0.35rem 0 0; color: var(--color-text-secondary); }
.empty button { margin-top: 1rem; }

.menu {
  display: flex;
  gap: 0.15rem;
  overflow-x: auto;
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.menu a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  white-space: nowrap;
  font-weight: 600;
  font-size: var(--font-size-sm);
  font-family: var(--font-heading);
  transition: var(--transition-normal);
}
.menu a.active, .menu a:hover {
  color: var(--color-navy);
  background: var(--color-primary-bg);
}

main { width: min(920px, 100%); margin: 0 auto; padding: 1rem; flex: 1; }
.page { min-height: 12rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.65rem;
}
.stat {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem;
}
.stat b {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-top: 0.25rem;
  color: var(--color-navy);
}
.stat.warn b { color: #A66B08; }
.stat.bad b { color: var(--color-danger); }

.list { display: flex; flex-direction: column; gap: 0.5rem; }
.item {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.85rem;
  cursor: pointer;
  text-align: left;
  width: 100%;
  color: inherit;
  font-weight: 500;
  height: auto;
  box-shadow: var(--shadow-sm);
}
.item:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-bg);
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-info-bg);
  color: var(--color-info);
  white-space: nowrap;
}
.badge.needs_review, .badge.open, .badge.uploaded, .badge.processing {
  color: #A66B08;
  background: var(--color-warning-bg);
}
.badge.rejected, .badge.duplicate {
  color: var(--color-danger);
  background: var(--color-danger-bg);
}
.badge.recognized, .badge.confirmed {
  color: var(--color-success);
  background: var(--color-success-bg);
}

.kv {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.35rem 0.75rem;
  font-size: 0.95rem;
}
.kv span { color: var(--color-text-muted); }
.inst-block { margin: 0.9rem 0; }
.inst-block li { margin: 0.35rem 0; color: var(--color-text-secondary); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(13, 27, 42, 0.45);
  display: grid;
  place-items: center;
  padding: 1rem;
  z-index: 20;
}
.modal-card { width: min(440px, 100%); }
.modal-wide { width: min(640px, 100%); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  z-index: 30;
  max-width: min(520px, calc(100% - 2rem));
  background: var(--color-danger-bg);
  border: 1px solid #f0b8b6;
  color: var(--color-danger);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-weight: 500;
}
.toast.ok {
  background: var(--color-success-bg);
  border-color: #b6e4cb;
  color: var(--color-success);
}

@media (max-width: 720px) {
  .period-pick { flex-wrap: wrap; }
  .period-pick select { max-width: none; width: 100%; flex-basis: 100%; }
  .kv { grid-template-columns: 1fr; }
  .brand-lockup .brand-sub { display: none; }
}