:root {
  color-scheme: light;
  --green-950: #10281a;
  --green-900: #183725;
  --green-800: #274c35;
  --green-700: #315f3d;
  --green-100: #dfeadd;
  --cream: #f6f0e4;
  --white: #ffffff;
  --text: #1d2a21;
  --muted: #637067;
  --line: #d9ded8;
  --roof: #a74732;
  --danger: #9b2d2d;
  --danger-bg: #f9dddd;
  --pending: #8e6013;
  --pending-bg: #fff0c9;
  --shadow: 0 16px 42px rgba(24, 55, 37, 0.1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: #f4f6f2; color: var(--text); }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { margin-bottom: 0; font-size: 1.25rem; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.eyebrow { margin-bottom: 0.25rem; color: var(--roof); font-size: 0.75rem; font-weight: 850; letter-spacing: 0.09em; text-transform: uppercase; }

.auth-shell { display: grid; place-items: center; min-height: 100vh; padding: 1rem; background: var(--cream); }
.auth-card { width: min(440px, 100%); padding: 1.5rem; border-top: 0.45rem solid var(--roof); border-radius: 1rem; background: var(--white); box-shadow: var(--shadow); }
.auth-logo { display: block; max-width: 165px; margin: 0 auto 1rem; }
.auth-logo img { display: block; width: 100%; height: auto; }
.auth-form { display: grid; gap: 0.9rem; }
.auth-form h1 { margin-bottom: 0.2rem; font-size: 1.8rem; }
.auth-form .button { width: 100%; }
.back-link { display: block; margin-top: 1.2rem; color: var(--green-800); text-align: center; }

.admin-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 74px; padding: 0.6rem max(1rem, calc((100vw - 1280px) / 2)); background: var(--white); border-bottom: 1px solid var(--line); }
.admin-brand { display: block; width: 70px; }
.admin-brand img { display: block; width: 100%; height: auto; }
.admin-user { display: flex; align-items: center; gap: 0.75rem; color: var(--muted); font-size: 0.9rem; }
.admin-nav { display: flex; gap: 0.3rem; overflow-x: auto; padding: 0.65rem max(1rem, calc((100vw - 1280px) / 2)); background: var(--green-900); }
.nav-button, .nav-link { flex: 0 0 auto; padding: 0.65rem 0.85rem; border: 0; border-radius: 0.55rem; background: transparent; color: #dce7df; cursor: pointer; font: inherit; font-weight: 750; text-decoration: none; }
.nav-button:hover, .nav-link:hover, .nav-button.active { background: rgba(255, 255, 255, 0.14); color: var(--white); }
.nav-link { margin-left: auto; }

.admin-main { width: min(1220px, calc(100% - 1.5rem)); margin: 1rem auto 3rem; }
.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.heading-actions { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; margin-bottom: 1rem; }
.summary-grid article { padding: 0.85rem; border: 1px solid var(--line); border-radius: 0.85rem; background: var(--white); box-shadow: var(--shadow); }
.summary-grid span, .summary-grid small { color: var(--muted); }
.summary-grid strong { display: block; margin: 0.2rem 0; font-size: 1.6rem; }
.panel { padding: 0.9rem; border: 1px solid var(--line); border-radius: 0.9rem; background: var(--white); box-shadow: var(--shadow); }
.panel + .panel { margin-top: 1rem; }
.pending-panel { margin-bottom: 1rem; border-top: 0.35rem solid #d79b2a; }
.panel-heading { margin-bottom: 0.8rem; }
.narrow-panel { max-width: 850px; }

.filters { display: grid; grid-template-columns: minmax(220px, 1fr) 200px 220px; gap: 0.75rem; margin-bottom: 0.85rem; }
label > span, .filters label > span { display: block; margin-bottom: 0.35rem; font-size: 0.82rem; font-weight: 800; }
input, select, textarea { width: 100%; padding: 0.72rem 0.78rem; border: 1px solid #cbd4cc; border-radius: 0.65rem; background: var(--white); color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(49, 95, 61, 0.25); border-color: var(--green-700); }

.booking-list { display: grid; gap: 0.65rem; }
.booking-card { display: flex; gap: 0.6rem; align-items: stretch; border: 1px solid var(--line); border-radius: 0.75rem; background: var(--white); overflow: hidden; }
.booking-card-main { display: grid; flex: 1; gap: 0.35rem; min-width: 0; padding: 0.85rem; border: 0; background: transparent; color: var(--text); cursor: pointer; text-align: left; }
.booking-card-main:hover { background: #fafcf9; }
.booking-card-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.booking-card h3 { margin: 0; font-size: 1rem; }
.booking-card strong { font-size: 0.9rem; }
.booking-card-meta, .booking-card small { display: block; overflow: hidden; color: var(--muted); font-size: 0.82rem; text-overflow: ellipsis; white-space: nowrap; }
.quick-actions { display: flex; align-items: center; gap: 0.4rem; padding: 0.6rem; background: #faf9f5; border-left: 1px solid var(--line); }
.status-pill { flex: 0 0 auto; padding: 0.22rem 0.48rem; border-radius: 999px; background: var(--green-100); color: var(--green-900); font-size: 0.7rem; font-weight: 850; }
.status-pill.pending { background: var(--pending-bg); color: var(--pending); }
.status-pill.rejected, .status-pill.cancelled { background: #ececec; color: #666; }
.status-pill.cancelled { text-decoration: line-through; }
.empty-state { padding: 1rem 0; color: var(--muted); }

.management-list { display: grid; gap: 0.65rem; }
.management-item { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.9rem; border: 1px solid var(--line); border-radius: 0.75rem; }
.management-item div { display: grid; gap: 0.25rem; min-width: 0; }
.management-item small { color: var(--muted); }
.history-list { display: grid; }
.history-list article { display: grid; grid-template-columns: 10rem 1fr; gap: 1rem; padding: 0.75rem 0; border-bottom: 1px solid var(--line); }
.history-list article:last-child { border-bottom: 0; }
.history-list time, .history-list small { color: var(--muted); font-size: 0.82rem; }
.history-list div { display: grid; gap: 0.2rem; }

.button, .icon-button { border: 0; border-radius: 0.65rem; cursor: pointer; font-weight: 800; text-decoration: none; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 0.7rem 0.9rem; }
.button.primary { background: var(--green-700); color: var(--white); }
.button.primary:hover { background: var(--green-800); }
.button.secondary { background: var(--green-100); color: var(--green-900); }
.button.danger { background: var(--danger-bg); color: var(--danger); }
.icon-button { display: inline-grid; place-items: center; width: 2.6rem; height: 2.6rem; background: #eef2ed; color: var(--text); font-size: 1.4rem; }
button:disabled { cursor: not-allowed; opacity: 0.55; }

.dialog { width: min(600px, calc(100% - 1rem)); max-height: calc(100vh - 1rem); padding: 0; border: 0; border-radius: 1rem; box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28); }
.large-dialog { width: min(800px, calc(100% - 1rem)); }
.dialog::backdrop { background: rgba(16, 33, 22, 0.65); backdrop-filter: blur(2px); }
.dialog form { padding: 1.15rem; }
.dialog-heading, .dialog-actions { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; }
.dialog-heading { margin-bottom: 1rem; }
.dialog-actions { margin-top: 0.8rem; }
.spacer { flex: 1; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.8rem; }
.form-grid.single-column { grid-template-columns: 1fr; }
.form-grid .wide { grid-column: 1 / -1; }
.checkbox-row { display: flex; flex-wrap: wrap; align-items: end; gap: 1rem; padding-bottom: 0.65rem; }
.checkbox-label { display: flex; align-items: center; gap: 0.55rem; }
.checkbox-label input { width: 1.1rem; height: 1.1rem; }
.checkbox-label span { margin: 0 !important; }
.form-actions { display: flex; justify-content: flex-end; }
.form-message { min-height: 1.3rem; margin: 0.75rem 0 0; color: var(--danger); font-weight: 750; }
.meta-text { margin: 0.75rem 0 0; color: var(--muted); font-size: 0.76rem; line-height: 1.45; }
.toast { position: fixed; right: 1rem; bottom: 1rem; z-index: 30; max-width: min(28rem, calc(100% - 2rem)); padding: 0.9rem 1rem; border-radius: 0.75rem; background: var(--green-950); color: var(--white); opacity: 0; pointer-events: none; transform: translateY(1rem); transition: 180ms ease; }
.toast.visible { opacity: 1; transform: translateY(0); }
.toast.error { background: var(--danger); }

@media (max-width: 800px) {
  .filters { grid-template-columns: 1fr; }
  .booking-card { flex-direction: column; }
  .quick-actions { justify-content: flex-end; border-top: 1px solid var(--line); border-left: 0; }
  .summary-grid { grid-template-columns: 1fr; }
  .nav-link { margin-left: 0; }
}

@media (max-width: 560px) {
  .admin-header { min-height: 66px; padding: 0.5rem; }
  .admin-brand { width: 58px; }
  .admin-user span { display: none; }
  .admin-nav { padding-inline: 0.5rem; }
  .admin-main { width: min(100% - 1rem, 1280px); margin-top: 0.75rem; }
  .page-heading { align-items: stretch; flex-direction: column; }
  .heading-actions .button { flex: 1; }
  .panel { padding: 0.75rem; }
  .booking-card-heading { gap: 0.4rem; }
  .booking-card-meta { white-space: normal; }
  .management-item { align-items: stretch; flex-direction: column; }
  .history-list article { grid-template-columns: 1fr; gap: 0.2rem; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .wide { grid-column: auto; }
  .dialog-actions { flex-wrap: wrap; }
  .spacer { display: none; }
  .dialog-actions .button { flex: 1; }
  .dialog-actions .danger { flex-basis: 100%; }
}