:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #607080;
  --line: #d7dde5;
  --surface: #ffffff;
  --page: #f4f7f9;
  --accent: #187a72;
  --accent-dark: #0f5d57;
  --warn: #f3fbfa;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: linear-gradient(180deg, #eef5f4 0%, var(--page) 42%, #ffffff 100%);
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 800;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

nav form {
  margin: 0;
}

nav button {
  border: 0;
  color: var(--accent-dark);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

main {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(32px, 7vw, 72px) 0;
}

.version {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto 24px;
  color: #8a98a6;
  font-size: 0.78rem;
}

.auth-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.auth-panel.compact {
  width: min(620px, 100%);
  grid-template-columns: 1fr;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  max-width: 680px;
  font-size: clamp(2.1rem, 5vw, 4rem);
}

h2 {
  font-size: 1.1rem;
}

.intro {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.6;
}

.form,
.demo-box,
.unit-table {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(42, 59, 76, 0.08);
}

.form {
  display: grid;
  gap: 18px;
  padding: 24px;
}

label {
  display: grid;
  gap: 8px;
  color: #334353;
  font-size: 0.92rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid #c6d0da;
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--ink);
  background: #ffffff;
  font: inherit;
}

input:focus,
select:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(24, 122, 114, 0.18);
}

.primary {
  min-height: 48px;
  border: 0;
  border-radius: 6px;
  padding: 12px 16px;
  color: #ffffff;
  background: var(--accent);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.primary:hover {
  background: var(--accent-dark);
}

.primary.small {
  min-height: 38px;
  padding: 8px 12px;
  font-size: 0.88rem;
}

.form-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.notice {
  margin: 0 0 22px;
  border: 1px solid #bddbd8;
  border-radius: 8px;
  padding: 14px 16px;
  color: #0c4f49;
  background: var(--warn);
  font-weight: 700;
}

.demo-box {
  width: min(420px, 100%);
  margin-top: 32px;
  padding: 20px 24px;
}

.demo-box p {
  margin: 10px 0 0;
  color: var(--muted);
}

.dashboard {
  display: grid;
  gap: 24px;
}

.planner-page {
  display: grid;
  gap: 24px;
}

.planner-frame {
  min-height: 760px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(42, 59, 76, 0.08);
}

.planner-iframe {
  display: block;
  width: 100%;
  height: 760px;
  border: 0;
  background: #ffffff;
}

.dashboard-heading {
  display: grid;
  gap: 8px;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.details-grid article {
  min-height: 96px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #ffffff;
}

.details-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.details-grid strong {
  overflow-wrap: anywhere;
}

.unit-table {
  overflow: hidden;
}

.unit-table h2,
.admin-panel > h2 {
  padding: 20px 22px;
  border-bottom: 1px solid var(--line);
}

.panel-heading,
.modal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-heading {
  padding: 14px 16px 14px 22px;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2,
.modal-heading h2 {
  padding: 0;
  border: 0;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid #b9c5cf;
  border-radius: 6px;
  color: var(--accent-dark);
  background: #ffffff;
  cursor: pointer;
  font: inherit;
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1;
}

.icon-button:hover {
  border-color: var(--accent);
  background: #f1faf8;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.admin-grid.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(42, 59, 76, 0.08);
}

.admin-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  align-items: end;
  padding: 20px 22px 24px;
}

.stacked-form {
  display: grid;
  gap: 14px;
  padding: 20px 22px 24px;
}

.modal {
  width: min(460px, calc(100% - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
  color: var(--ink);
  background: #ffffff;
  box-shadow: 0 24px 80px rgba(23, 32, 42, 0.24);
}

.modal::backdrop {
  background: rgba(23, 32, 42, 0.34);
}

.modal-heading {
  padding: 16px 18px 14px 22px;
  border-bottom: 1px solid var(--line);
}

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

.filter-row th {
  padding: 8px 10px;
  background: #f7f9fb;
}

.filter-row input,
.filter-row select {
  min-height: 34px;
  padding: 6px 8px;
  font-size: 0.86rem;
}

.sort-button {
  border: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  text-align: left;
  text-transform: uppercase;
}

.sort-button::after {
  content: " ↕";
  color: #8a98a6;
  font-weight: 700;
}

.inline-form {
  margin: 0;
}

.action-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.link-button {
  border: 0;
  padding: 0;
  color: var(--accent-dark);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.link-button.danger {
  color: #a33a2c;
}

.checkbox-label {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 10px;
}

.checkbox-label input {
  width: 18px;
  min-height: 18px;
}

.form-context {
  margin: 0;
  color: var(--muted);
  font-weight: 800;
}

.approve-form {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(110px, 0.8fr) auto;
  gap: 8px;
  align-items: center;
  min-width: 420px;
}

.unit-approval-select {
  border-color: #d3b45f;
  background: #fff8e5;
}

.requested-unit-option {
  color: #7a5300;
  background: #fff1bf;
  font-weight: 800;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 22px;
  border-bottom: 1px solid #edf0f3;
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.role {
  display: inline-flex;
  border-radius: 999px;
  padding: 5px 10px;
  color: #0c4f49;
  background: #e5f3f1;
  font-size: 0.82rem;
  font-weight: 800;
}

@media (max-width: 780px) {
  .topbar,
  nav {
    align-items: flex-start;
  }

  .topbar {
    flex-direction: column;
  }

  .auth-panel,
  .details-grid,
  .admin-grid,
  .admin-grid.two-column,
  .admin-form,
  .approve-form {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.25rem;
  }

  th,
  td {
    padding: 12px;
  }
}