:root {
  --ink: #122033;
  --muted: #64748b;
  --line: #d8e3f1;
  --panel: #ffffff;
  --page: #f3f7fc;
  --accent: #1d64d8;
  --accent-strong: #164aa3;
  --accent-soft: #e8f1ff;
  --accent-border: #9dc0ff;
  --navy: #0b2147;
  --cyan: #0891b2;
  --warm: #c77700;
  --danger: #c24135;
  --ok: #15803d;
  --shadow: 0 18px 52px rgba(15, 35, 68, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(232, 241, 255, 0.92), rgba(243, 247, 252, 0.96) 360px),
    var(--page);
  font-family: Inter, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

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

button {
  min-height: 40px;
  border: 1px solid #b9c9dd;
  border-radius: 6px;
  padding: 0 14px;
  color: #183153;
  background: linear-gradient(180deg, #ffffff, #f6f9fd);
  cursor: pointer;
  font-weight: 650;
  box-shadow: 0 1px 2px rgba(15, 35, 68, 0.08);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease, background 0.16s ease;
}

button:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 18px rgba(29, 100, 216, 0.14);
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

button.primary {
  border-color: var(--accent);
  color: #fff;
  background: linear-gradient(180deg, #2f7df0, var(--accent));
  box-shadow: 0 10px 24px rgba(29, 100, 216, 0.24);
}

button.primary:hover {
  background: linear-gradient(180deg, #236fe0, var(--accent-strong));
}

button.secondary {
  border-color: var(--accent-border);
  color: var(--accent-strong);
  background: var(--accent-soft);
}

button.danger {
  border-color: #f0b6ae;
  color: #fff;
  background: linear-gradient(180deg, #d95c4f, var(--danger));
  box-shadow: 0 10px 22px rgba(194, 65, 53, 0.18);
}

button.ghost-danger {
  color: var(--danger);
  background: #fff5f3;
  box-shadow: none;
}

button.ghost {
  width: 100%;
  border-color: #c9d7e8;
  background: #f8fbff;
}

label {
  display: grid;
  gap: 6px;
  color: #40516a;
  font-size: 13px;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 11px;
  color: var(--ink);
  background: #fbfdff;
  box-shadow: inset 0 1px 2px rgba(15, 35, 68, 0.04);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 100, 216, 0.14);
  outline: 0;
}

textarea {
  resize: vertical;
}

code {
  padding: 2px 5px;
  border-radius: 4px;
  background: #e8f1ff;
}

.shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.shell.compact {
  min-height: 70vh;
}

.boot,
.notice-panel {
  width: min(560px, 100%);
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.boot h1,
.notice-panel h1 {
  margin: 0 0 12px;
  font-size: 28px;
}

.boot p,
.notice-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 440px);
  min-height: 100vh;
  background: #fff;
}

.auth-media {
  background:
    linear-gradient(90deg, rgba(7, 27, 62, 0.84), rgba(24, 88, 164, 0.18)),
    url("https://images.unsplash.com/photo-1581093458791-9d42e5d7f779?auto=format&fit=crop&w=1600&q=80") center / cover;
}

.auth-panel {
  display: grid;
  align-content: center;
  gap: 32px;
  padding: 48px;
}

.brand {
  display: grid;
  gap: 5px;
}

.brand span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.brand strong {
  font-size: 25px;
  color: var(--navy);
}

.auth-form,
.profile-form,
.booking-form {
  display: grid;
  gap: 16px;
}

.auth-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-note {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.app-frame {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 24px;
  border-right: 1px solid #c6d6ea;
  padding: 24px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
  box-shadow: 8px 0 30px rgba(15, 35, 68, 0.06);
}

.tabs {
  display: grid;
  gap: 8px;
}

.tabs button {
  width: 100%;
  justify-content: start;
  text-align: left;
  border-color: transparent;
  color: #42526d;
  background: transparent;
  box-shadow: none;
}

.tabs button.active {
  border-color: var(--accent-border);
  color: var(--accent-strong);
  background: linear-gradient(90deg, var(--accent-soft), #ffffff);
  box-shadow: inset 4px 0 0 var(--accent);
}

.profile-form {
  align-content: start;
}

.profile-form h2,
.booking-form h2,
.panel h2 {
  margin: 0;
  font-size: 18px;
  color: var(--navy);
}

.workspace {
  display: grid;
  align-content: start;
  gap: 22px;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.topbar p {
  margin: 0 0 4px;
  color: #48607d;
  font-weight: 650;
}

.topbar h1 {
  margin: 0;
  font-size: 30px;
  color: var(--navy);
}

.filters {
  display: grid;
  grid-template-columns: 170px 220px;
  gap: 12px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 22px;
}

.mine-grid {
  align-items: start;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.85fr) minmax(520px, 1.15fr);
  gap: 22px;
}

.booking-form,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background:
    linear-gradient(180deg, #ffffff, #fbfdff);
  box-shadow: 0 12px 34px rgba(15, 35, 68, 0.08);
}

.booking-form {
  border-top: 4px solid var(--accent);
}

.panel {
  border-top: 4px solid var(--cyan);
}

.panel.wide {
  width: 100%;
}

.schedule-panel {
  display: grid;
  gap: 16px;
}

.schedule-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(140px, 1fr));
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.week-day {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 230px;
  border: 1px solid #d5e2f2;
  border-radius: 8px;
  padding: 12px;
  background: #ffffff;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(15, 35, 68, 0.05);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.week-day:hover {
  border-color: var(--accent-border);
  box-shadow: 0 12px 26px rgba(29, 100, 216, 0.12);
  transform: translateY(-1px);
}

.week-day.selected {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 2px rgba(29, 100, 216, 0.12), 0 12px 26px rgba(29, 100, 216, 0.12);
}

.week-day.today .week-day-head strong {
  color: var(--accent);
}

.week-day-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.week-day-head strong {
  color: var(--navy);
  font-size: 15px;
}

.week-day-head span,
.week-day-count {
  color: var(--muted);
  font-size: 12px;
}

.week-day-count {
  width: fit-content;
  border: 1px solid #cfe0f5;
  border-radius: 999px;
  padding: 3px 8px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-weight: 700;
}

.week-day-bookings {
  display: grid;
  gap: 8px;
}

.week-day-bookings p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.week-booking {
  display: grid;
  gap: 3px;
  border-left: 4px solid var(--warm);
  border-radius: 6px;
  padding: 8px;
  background: #f8fbff;
}

.week-booking.status-approved {
  border-left-color: var(--ok);
}

.week-booking.status-rejected,
.week-booking.status-cancelled {
  border-left-color: var(--danger);
  opacity: 0.78;
}

.week-booking strong {
  color: var(--navy);
  font-size: 12px;
}

.week-booking span,
.week-booking em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.section-head span {
  border: 1px solid #cfe0f5;
  border-radius: 999px;
  padding: 4px 10px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 13px;
  font-weight: 700;
}

.booking-list {
  display: grid;
  gap: 12px;
}

.booking-item {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 14px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--warm);
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(15, 35, 68, 0.06);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.booking-item:hover {
  border-color: #b9cbed;
  box-shadow: 0 14px 30px rgba(15, 35, 68, 0.10);
  transform: translateY(-1px);
}

.booking-item.status-approved {
  border-left-color: var(--ok);
}

.booking-item.status-rejected,
.booking-item.status-cancelled {
  border-left-color: var(--danger);
  opacity: 0.78;
}

.booking-time {
  display: grid;
  align-content: start;
  gap: 4px;
}

.booking-time strong {
  font-size: 18px;
  color: var(--navy);
}

.booking-time span,
.booking-main p {
  color: var(--muted);
}

.booking-main {
  min-width: 0;
}

.booking-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.booking-title h3 {
  margin: 0;
  font-size: 17px;
}

.status-pill {
  flex: 0 0 auto;
  border: 1px solid #d3e1f3;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 750;
}

.status-pill.status-pending {
  border-color: #f4d199;
  color: #8a4b00;
  background: #fff6e8;
}

.status-pill.status-approved {
  border-color: #a8dfba;
  color: #11632f;
  background: #eaf8ef;
}

.status-pill.status-rejected,
.status-pill.status-cancelled {
  border-color: #f3b8b1;
  color: #9f2c23;
  background: #fff1ef;
}

.booking-main p {
  margin: 7px 0 0;
  line-height: 1.55;
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.device-grid-header {
  margin-bottom: 16px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.device-card {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(15, 35, 68, 0.05);
  cursor: pointer;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.device-card:hover {
  border-color: var(--accent-border);
  box-shadow: 0 12px 26px rgba(29, 100, 216, 0.12);
  transform: translateY(-2px);
}

.device-card.status-maintenance {
  border-left: 4px solid var(--warm);
}

.device-card.status-offline {
  border-left: 4px solid var(--muted);
  opacity: 0.78;
}

.device-card.status-available {
  border-left: 4px solid var(--ok);
}

.device-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.device-card-head h3 {
  margin: 0;
  font-size: 16px;
  color: var(--navy);
}

.device-card-meta {
  display: grid;
  gap: 4px;
}

.device-card-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.device-detail {
  display: grid;
  gap: 18px;
}

.device-detail-head {
  display: flex;
  align-items: center;
  gap: 16px;
}

.device-detail-head h3 {
  margin: 0;
  font-size: 20px;
  color: var(--navy);
}

.device-list {
  display: grid;
  gap: 14px;
}

.device-form {
  display: grid;
  gap: 14px;
  border: 1px solid #d5e2f2;
  border-radius: 8px;
  padding: 16px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(15, 35, 68, 0.05);
}

.new-device-form {
  margin-bottom: 18px;
  border-color: var(--accent-border);
  background: linear-gradient(180deg, #f8fbff, #ffffff);
}

.device-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.device-head h3,
.device-form h3 {
  margin: 0;
  color: var(--navy);
  font-size: 16px;
}

.device-head p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.device-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field-wide {
  grid-column: 1 / -1;
}

.device-status {
  flex: 0 0 auto;
  border: 1px solid #d3e1f3;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 750;
}

.device-status.status-available {
  border-color: #a8dfba;
  color: #11632f;
  background: #eaf8ef;
}

.device-status.status-maintenance {
  border-color: #f4d199;
  color: #8a4b00;
  background: #fff6e8;
}

.device-status.status-offline {
  border-color: #c8d2df;
  color: #475569;
  background: #f1f5f9;
}

.empty {
  display: grid;
  min-height: 180px;
  place-items: center;
  border: 1px dashed #adc2dc;
  border-radius: 8px;
  color: var(--muted);
  background: #f8fbff;
}

.compact-empty {
  min-height: 72px;
  padding: 12px;
  text-align: center;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  max-width: min(420px, calc(100vw - 40px));
  border-radius: 8px;
  padding: 13px 16px;
  color: #fff;
  background: var(--accent);
  box-shadow: var(--shadow);
  z-index: 10;
  font-weight: 650;
}

.toast.error {
  background: var(--danger);
}

.toast.info {
  background: #0f5f8a;
}

.toast.warning {
  background: var(--warm);
}

@media (max-width: 980px) {
  .auth-layout,
  .app-frame,
  .content-grid,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .auth-media {
    min-height: 220px;
  }

  .sidebar {
    grid-template-rows: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tabs button {
    text-align: center;
  }

  .week-grid {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
  }
}

@media (max-width: 700px) {
  .auth-panel,
  .workspace,
  .sidebar {
    padding: 18px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .filters,
  .two-col,
  .device-fields {
    grid-template-columns: 1fr;
  }

  .booking-item {
    grid-template-columns: 1fr;
  }

  .week-grid {
    grid-template-columns: 1fr;
  }

  .booking-title {
    align-items: start;
    flex-direction: column;
  }
}