@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap");

:root {
  --bg: #f3f8fd;
  --bg-accent: #dff5ff;
  --surface: #ffffff;
  --surface-soft: #f8fbff;
  --text: #0f1f35;
  --text-muted: #516179;
  --border: #d4e2f0;
  --primary: #0d9488;
  --primary-strong: #0f766e;
  --danger: #be123c;
  --success: #15803d;
  --warning: #b45309;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 45px rgba(15, 31, 53, 0.08);
  --content-width: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
}

body {
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  color: var(--text);
  line-height: 1.55;
  background:
    radial-gradient(circle at 8% 8%, rgba(13, 148, 136, 0.11), transparent 38%),
    radial-gradient(circle at 94% 0%, rgba(56, 189, 248, 0.13), transparent 34%),
    linear-gradient(180deg, var(--bg-accent), var(--bg) 45%);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

a {
  color: var(--primary-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(13, 148, 136, 0.34);
  outline-offset: 2px;
}

.container {
  width: min(var(--content-width), calc(100% - 2rem));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  padding-top: env(safe-area-inset-top, 0);
  backdrop-filter: blur(14px);
  background: rgba(243, 248, 253, 0.84);
  border-bottom: 1px solid rgba(212, 226, 240, 0.9);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  padding-block: 0.35rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand__mark {
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #0d9488, #06b6d4);
  box-shadow: 0 0 0 6px rgba(6, 182, 212, 0.14);
}

.topnav {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  transition: background-color 220ms ease, color 220ms ease;
}

.nav-link:hover {
  text-decoration: none;
  background: rgba(13, 148, 136, 0.1);
  color: var(--primary-strong);
}

.nav-link.is-strong {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
}

.main-shell {
  padding-block: 1.4rem calc(5.5rem + env(safe-area-inset-bottom, 0));
}

.page-hero {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(212, 226, 240, 0.95);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 1rem 1rem 1.1rem;
  margin-bottom: 1rem;
}

.page-title {
  margin: 0;
  font-size: clamp(1.45rem, 2.3vw, 2rem);
  letter-spacing: -0.015em;
}

.page-subtitle {
  margin-top: 0.52rem;
  color: var(--text-muted);
}

.hero-actions {
  margin-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn,
button,
input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.62rem 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.btn:hover,
button:hover,
input[type="submit"]:hover {
  transform: translateY(-1px);
}

.btn-primary,
button,
input[type="submit"] {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
}

.btn-secondary {
  color: var(--primary-strong);
  background: #ffffff;
  border-color: rgba(13, 148, 136, 0.27);
}

.notice {
  margin-bottom: 1rem;
  padding: 0.72rem 0.86rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(13, 148, 136, 0.22);
  background: rgba(13, 148, 136, 0.09);
  color: #115e59;
}

.notice-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  gap: 0.6rem;
}

.card {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(212, 226, 240, 0.95);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 1rem;
}

.card + .card {
  margin-top: 0.9rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.summary-grid {
  margin-bottom: 1rem;
}

.stat-card__label {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.stat-card__value {
  margin: 0.5rem 0 0;
  font-size: clamp(1.7rem, 4vw, 2.1rem);
  letter-spacing: -0.02em;
  font-weight: 700;
}

.stat-card__value--small {
  font-size: clamp(1.15rem, 3vw, 1.3rem);
}

.device-grid {
  display: grid;
  gap: 1rem;
}

.device-card h2 {
  margin: 0;
  font-size: 1.1rem;
}

.meta-row {
  margin-top: 0.72rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0.34rem 0.64rem;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
}

.pill-online {
  background: rgba(21, 128, 61, 0.11);
  color: var(--success);
}

.pill-offline {
  background: rgba(180, 83, 9, 0.14);
  color: var(--warning);
}

.metric {
  margin-top: 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  padding: 0.72rem;
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.metric-value {
  margin-top: 0.25rem;
  font-size: 1.16rem;
  font-weight: 700;
}

.form-grid {
  display: grid;
  gap: 0.82rem;
}

label {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.34rem;
}

input[type="text"],
input[type="password"],
input[type="search"],
select,
textarea {
  width: 100%;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
  padding: 0.62rem 0.78rem;
  color: var(--text);
}

input::placeholder,
textarea::placeholder {
  color: #7e8da5;
}

input[type="checkbox"] {
  width: 1.15rem;
  height: 1.15rem;
  vertical-align: middle;
  accent-color: var(--primary);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.hint {
  margin-top: 0.32rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.errorlist {
  margin: 0.42rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--danger);
  font-size: 0.87rem;
}

.nonfield {
  margin-bottom: 0.7rem;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

.filter-toolbar {
  display: grid;
  gap: 0.9rem;
  align-items: end;
}

.filter-toolbar__search {
  min-width: 0;
}

.filter-toolbar__actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chip-button {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  background: #ffffff;
  padding-inline: 0.88rem;
  font-weight: 600;
}

.chip-button.is-active {
  color: #ffffff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
}

.mobile-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  justify-content: center;
  backdrop-filter: blur(14px);
  background: rgba(243, 248, 253, 0.9);
  border-top: 1px solid rgba(212, 226, 240, 0.9);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.mobile-nav__inner {
  width: min(var(--content-width), calc(100% - 0.6rem));
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.36rem;
  padding: 0.35rem;
}

.mobile-nav__item {
  min-height: 48px;
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.mobile-nav__item.is-active {
  color: var(--primary-strong);
  background: rgba(13, 148, 136, 0.1);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

th,
td {
  text-align: left;
  padding: 0.62rem 0.58rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

th {
  color: var(--text-muted);
  font-weight: 600;
}

.empty-state {
  color: var(--text-muted);
}

@media (min-width: 720px) {
  .main-shell {
    padding-block: 1.6rem 3rem;
  }

  .page-hero,
  .card {
    padding: 1.2rem 1.2rem 1.25rem;
  }

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

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

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

  .filter-toolbar {
    grid-template-columns: 2fr 1.4fr auto;
  }
}

@media (min-width: 1080px) {
  .topbar__inner {
    min-height: 70px;
  }

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

  .summary-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .mobile-nav {
    display: none;
  }

  .main-shell {
    padding-bottom: 2.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}