:root {
  color-scheme: light;
  --background: #f4f7f6;
  --surface: #ffffff;
  --text: #16201d;
  --muted: #5d6b67;
  --primary: #126b51;
  --primary-strong: #0b503c;
  --border: #dbe4e1;
  --shadow: 0 12px 35px rgb(25 49 42 / 8%);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --background: #101714;
  --surface: #19221f;
  --text: #eef6f3;
  --muted: #a9bab4;
  --primary: #6bd7b4;
  --primary-strong: #9ce8cf;
  --border: #30413b;
  --shadow: 0 12px 35px rgb(0 0 0 / 25%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --background: #101714;
    --surface: #19221f;
    --text: #eef6f3;
    --muted: #a9bab4;
    --primary: #6bd7b4;
    --primary-strong: #9ce8cf;
    --border: #30413b;
    --shadow: 0 12px 35px rgb(0 0 0 / 25%);
  }
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 1rem/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}

a { color: var(--primary); }

.site-header,
.site-footer,
.page-shell {
  width: min(100% - 2rem, 70rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
  gap: 1rem;
}

.brand { color: var(--text); font-size: 1.15rem; font-weight: 750; text-decoration: none; }
.site-header nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .75rem; }
.site-header nav a { color: var(--muted); text-decoration: none; }

.theme-button {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .45rem .7rem;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.page-shell { padding-block: 3.5rem 5rem; }
.hero { max-width: 44rem; }
.eyebrow { margin: 0 0 .5rem; color: var(--primary); font-size: .8rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(2.25rem, 9vw, 4.5rem); line-height: 1.05; letter-spacing: -.045em; }
.hero > p:not(.eyebrow) { margin: 1.4rem 0 2rem; color: var(--muted); font-size: 1.1rem; }

.primary-link,
.secondary-link {
  display: inline-block;
  border-radius: .7rem;
  padding: .8rem 1rem;
  font-weight: 700;
  text-decoration: none;
}

.primary-link { background: var(--primary); color: var(--background); }
.secondary-link { border: 1px solid var(--border); }

.grid { display: grid; gap: 1rem; margin-top: 4rem; }
.card, .panel { border: 1px solid var(--border); border-radius: 1rem; background: var(--surface); box-shadow: var(--shadow); }
.card { padding: 1.25rem; }
.card h2 { margin: 0; font-size: 1.1rem; }
.card p, .status-row p { margin: .45rem 0 0; color: var(--muted); }
.panel { max-width: 48rem; padding: clamp(1.25rem, 5vw, 2.5rem); }
.panel h1 { font-size: clamp(2rem, 8vw, 3.5rem); }
.status-row { display: flex; align-items: flex-start; gap: .8rem; margin-block: 2rem; }
.status-dot { flex: 0 0 auto; width: .75rem; height: .75rem; margin-top: .35rem; border-radius: 50%; background: #22a06b; box-shadow: 0 0 0 .25rem rgb(34 160 107 / 14%); }
.site-footer { padding-block: 1.5rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; }

.muted { color: var(--muted); }
.inline-form { display: inline; margin: 0; }
.link-button { border: 0; padding: 0; background: transparent; color: var(--primary); font: inherit; cursor: pointer; }
.auth-shell { display: grid; min-height: 65vh; place-items: center; }
.auth-panel { width: min(100%, 28rem); }
.auth-panel h1, .page-heading h1 { font-size: clamp(2rem, 8vw, 3.5rem); }
.page-heading { margin-bottom: 2rem; }
.page-heading .muted { margin: .5rem 0 0; }
.stacked-form { display: grid; gap: 1rem; margin-top: 1.5rem; }
.field { display: grid; gap: .35rem; min-width: 0; }
.field label, .label { color: var(--muted); font-size: .85rem; font-weight: 700; }
.field input, .field select, .field textarea { width: 100%; min-height: 2.75rem; border: 1px solid var(--border); border-radius: .55rem; padding: .6rem .7rem; background: var(--background); color: var(--text); font: inherit; }
.field small { color: var(--muted); }
.errorlist { margin: 0; padding-left: 1.25rem; color: #c23d3d; }
.form-errors { border: 1px solid #c23d3d; border-radius: .55rem; padding: .7rem; color: #c23d3d; }
.primary-button, .secondary-button { min-height: 2.75rem; border-radius: .7rem; padding: .7rem 1rem; font: inherit; font-weight: 700; cursor: pointer; }
.primary-button { border: 1px solid var(--primary); background: var(--primary); color: var(--background); }
.secondary-button { border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin-top: 1.5rem; }
.heading-row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem; }
.heading-row > .page-heading { margin-bottom: 0; }
.metric-grid { display: grid; gap: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 35rem; }
.metric { display: block; font-size: 2.25rem; font-weight: 800; }
.compact-grid { max-width: 50rem; margin-top: 2rem; }
.table-wrap { overflow-x: auto; margin-top: 2rem; border: 1px solid var(--border); border-radius: 1rem; background: var(--surface); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .85rem 1rem; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; }
tbody tr:last-child td { border-bottom: 0; }
.badge { display: inline-block; border-radius: 999px; padding: .2rem .55rem; font-size: .8rem; font-weight: 700; }
.badge-active { background: rgb(34 160 107 / 14%); color: #168356; }
.badge-inactive { background: rgb(194 61 61 / 14%); color: #b23636; }
.profile-grid { display: grid; gap: 1.5rem; max-width: 52rem; }
.profile-grid > div { display: grid; gap: .25rem; }
.danger-zone { margin-top: 1.5rem; }
.form-grid { max-width: 52rem; }
.full-width { grid-column: 1 / -1; }
.attendance-card { display: grid; gap: 1.25rem; max-width: 34rem; border: 1px solid var(--border); border-radius: 1rem; padding: 1.25rem; background: var(--surface); box-shadow: var(--shadow); }
.attendance-card h2 { margin: 0; font-size: 1.35rem; }
.attendance-times { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.attendance-times > div { display: grid; gap: .2rem; }
.attendance-action { width: 100%; min-height: 3.5rem; border: 0; border-radius: .8rem; padding: .8rem 1rem; background: var(--primary); color: var(--background); font: inherit; font-size: 1.05rem; font-weight: 800; cursor: pointer; }
.complete-message { margin: 0; border-radius: .7rem; padding: .85rem; background: rgb(34 160 107 / 14%); color: var(--text); font-weight: 700; text-align: center; }
.leave-form { max-width: 38rem; }
.request-list { display: grid; gap: 1rem; margin-top: 2rem; max-width: 58rem; }
.request-card p, .review-card p { margin: .55rem 0; }
.request-heading { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: .75rem; }
.badge-pending { background: rgb(189 129 25 / 16%); color: #9a6710; }
.badge-approved { background: rgb(34 160 107 / 14%); color: #168356; }
.badge-rejected { background: rgb(194 61 61 / 14%); color: #b23636; }
.review-note { border-left: .2rem solid var(--border); padding-left: .75rem; color: var(--muted); }
.review-form { display: grid; gap: .5rem; margin-top: 1rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.review-form label { color: var(--muted); font-size: .85rem; font-weight: 700; }
.review-form input { width: 100%; min-height: 2.75rem; border: 1px solid var(--border); border-radius: .55rem; padding: .6rem .7rem; background: var(--background); color: var(--text); font: inherit; }
.admin-metrics { display: grid; gap: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.metric-card { display: grid; gap: .2rem; color: var(--text); text-decoration: none; }
.metric-card > span:last-child { color: var(--muted); }
.attention-card { border-color: #bd8119; }
.admin-section { margin-top: 2rem; border: 1px solid var(--border); border-radius: 1rem; padding: 1.25rem; background: var(--surface); box-shadow: var(--shadow); }
.section-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem; }
.section-heading h2 { margin: 0; font-size: 1.15rem; }
.simple-list { display: grid; gap: 0; margin-top: .75rem; }
.simple-list > a, .simple-list > div { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; border-top: 1px solid var(--border); padding: .75rem 0; color: var(--text); text-decoration: none; }
.simple-list > :first-child { border-top: 0; }
.simple-list span { color: var(--muted); }
.filter-bar { display: grid; gap: .75rem; margin-top: 1.5rem; border: 1px solid var(--border); border-radius: 1rem; padding: 1rem; background: var(--surface); }
.filter-actions { display: flex; align-items: end; gap: .75rem; }
.overview-grid { display: grid; gap: 1rem; margin-top: 1.5rem; }
.audit-data { min-width: 20rem; margin-top: .5rem; }
.audit-data pre { max-width: 35rem; overflow: auto; margin: .25rem 0 .75rem; white-space: pre-wrap; font-size: .75rem; }
.error-panel { margin-inline: auto; }
.error-shell { display: grid; min-height: 100vh; place-items: center; }

@media (min-width: 45rem) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .compact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-shell { padding-top: 6rem; }
  .profile-grid, .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-metrics { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .filter-bar { grid-template-columns: minmax(12rem, 2fr) repeat(2, minmax(9rem, 1fr)) auto; align-items: end; }
  .overview-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 44.99rem) {
  .site-header { flex-direction: column; align-items: flex-start; padding-block: 1rem; }
  .site-header nav { width: 100%; justify-content: flex-start; font-size: .9rem; }
  .site-header nav a, .site-header .link-button { display: inline-flex; min-height: 2.5rem; align-items: center; }
  .theme-button { min-height: 2.5rem; }
  .page-shell { padding-top: 2rem; }
}