:root {
  --aqua-primary: #087ea4;
  --aqua-primary-strong: #063140;
  --aqua-primary-soft: #d7eef7;
  --aqua-secondary: #0f9f8e;
  --aqua-secondary-soft: #ddf5f1;
  --aqua-tertiary: #5d6ec7;
  --aqua-bg: #f3f8fa;
  --aqua-bg-deep: #e3f3fa;
  --aqua-bg-mid: #f0f8fc;
  --aqua-surface: rgba(255, 255, 255, 0.96);
  --aqua-surface-soft: rgba(232, 241, 245, 0.82);
  --aqua-text: #13242d;
  --aqua-muted: #627987;
  --aqua-border: rgba(138, 167, 180, 0.5);
  --aqua-shadow: 0 18px 44px rgba(7, 49, 64, 0.12);
  --aqua-danger: #b42318;
  --aqua-danger-soft: rgba(180, 35, 24, 0.1);
  --aqua-success: #0f9f8e;
  --aqua-warning: #b7791f;
  --aqua-radius-card: 18px;
  --aqua-radius-control: 14px;
  --aqua-shell-width: 286px;
}

:root[data-aqua-theme="dark"] {
  --aqua-primary: #38e4ff;
  --aqua-primary-strong: #b8f6ff;
  --aqua-primary-soft: rgba(56, 228, 255, 0.16);
  --aqua-secondary: #5c7cff;
  --aqua-secondary-soft: rgba(92, 124, 255, 0.14);
  --aqua-tertiary: #6ee7c6;
  --aqua-bg: #07121a;
  --aqua-bg-deep: #061019;
  --aqua-bg-mid: #0b1b26;
  --aqua-surface: rgba(11, 27, 38, 0.78);
  --aqua-surface-soft: rgba(16, 36, 51, 0.72);
  --aqua-text: #e6f7fb;
  --aqua-muted: #9fc1cf;
  --aqua-border: rgba(77, 119, 139, 0.62);
  --aqua-shadow: 0 20px 52px rgba(56, 228, 255, 0.14);
  --aqua-danger: #ffb4ab;
  --aqua-danger-soft: rgba(255, 180, 171, 0.12);
  --aqua-success: #6ee7c6;
  --aqua-warning: #fbbf24;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  color: var(--aqua-text) !important;
  background:
    radial-gradient(circle at 50% -20%, rgba(8, 126, 164, 0.2), transparent 34%),
    linear-gradient(180deg, var(--aqua-bg-deep), var(--aqua-bg-mid) 48%, #ffffff 100%) !important;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif !important;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    radial-gradient(circle, rgba(8, 126, 164, 0.11) 0 1px, transparent 1.4px),
    radial-gradient(circle, rgba(15, 159, 142, 0.12) 0 1.2px, transparent 1.8px);
  background-position: 12px 18px, 72px 84px;
  background-size: 92px 92px, 126px 126px;
}

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

.aqua-shell {
  min-height: 100vh;
}

.aqua-app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(16px, 4vw, 32px);
  background: color-mix(in srgb, var(--aqua-surface) 88%, transparent);
  border-bottom: 1px solid rgba(138, 167, 180, 0.34);
  box-shadow: 0 10px 28px rgba(7, 49, 64, 0.08);
  backdrop-filter: blur(18px);
}

.aqua-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--aqua-text);
  text-decoration: none;
}

.aqua-brand-mark {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 999px;
  background: #0b1b26;
  color: #ffffff;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(8, 126, 164, 0.18);
}

.aqua-brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.aqua-brand-text {
  display: grid;
  min-width: 0;
}

.aqua-brand-title {
  font-size: 16px;
  font-weight: 800;
  line-height: 1.15;
  white-space: nowrap;
}

.aqua-brand-subtitle {
  color: var(--aqua-muted);
  font-size: 12px;
  font-weight: 650;
}

.aqua-menu-toggle {
  display: none;
  border: 1px solid var(--aqua-border);
  border-radius: 14px;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--aqua-primary-strong);
  background: var(--aqua-surface);
  cursor: pointer;
}

.aqua-menu-toggle span,
.aqua-menu-toggle::before,
.aqua-menu-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: currentColor;
}

.aqua-main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.aqua-main-nav a,
.aqua-main-nav button,
.main-nav a,
nav.main-nav a,
.admin-link,
.link-chip,
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  border-radius: 14px !important;
  border: 1px solid rgba(138, 167, 180, 0.36) !important;
  padding: 8px 12px !important;
  color: var(--aqua-text) !important;
  background: color-mix(in srgb, var(--aqua-surface) 82%, transparent) !important;
  text-decoration: none !important;
  font-size: 13px;
  font-weight: 750 !important;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}

.aqua-main-nav a:hover,
.aqua-main-nav button:hover,
.main-nav a:hover,
nav.main-nav a:hover,
.admin-link:hover,
.link-chip:hover,
.chip:hover {
  border-color: rgba(8, 126, 164, 0.5) !important;
  color: var(--aqua-primary) !important;
  background: rgba(215, 238, 247, 0.9) !important;
  transform: translateY(-1px);
}

.aqua-main-nav a[aria-current="page"] {
  color: var(--aqua-primary-strong) !important;
  border-color: rgba(8, 126, 164, 0.46) !important;
  background: var(--aqua-primary-soft) !important;
}

.aqua-nav-separator {
  width: 1px;
  align-self: stretch;
  min-height: 28px;
  background: rgba(138, 167, 180, 0.32);
}

.aqua-logout {
  color: var(--aqua-danger) !important;
  background: var(--aqua-danger-soft) !important;
  border-color: rgba(180, 35, 24, 0.22) !important;
}

.aqua-shell-message {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 60;
  max-width: min(380px, calc(100vw - 36px));
  padding: 13px 16px;
  border-radius: 14px;
  color: #ffffff;
  background: #12313d;
  box-shadow: var(--aqua-shadow);
  font-weight: 650;
}

.aqua-app-open-banner {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 70;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid rgba(138, 167, 180, 0.42);
  border-radius: 18px;
  color: var(--aqua-text);
  background: color-mix(in srgb, var(--aqua-surface) 94%, transparent);
  box-shadow: var(--aqua-shadow);
  backdrop-filter: blur(18px);
}

.aqua-app-open-banner div {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.aqua-app-open-banner span {
  color: var(--aqua-muted);
  font-size: 12px;
}

.aqua-app-open-banner a,
.aqua-app-open-banner button {
  min-height: 38px;
  margin: 0;
  white-space: nowrap;
}

.wrap,
.panel {
  position: relative;
}

.wrap {
  width: min(1200px, calc(100vw - 32px));
}

.panel,
.card,
.summary-card,
.user-card,
.item-card,
.modal-card,
.terms-box,
dialog {
  color: var(--aqua-text) !important;
  background: var(--aqua-surface) !important;
  border-color: var(--aqua-border) !important;
  box-shadow: var(--aqua-shadow) !important;
}

.panel,
.card,
.summary-card,
.user-card,
.modal-card,
dialog {
  border-radius: 20px !important;
}

.item-card,
.terms-box,
.mode-box,
.result {
  border-radius: 16px !important;
}

h1,
h2,
h3,
strong,
.title,
.badge,
.pill,
label,
th,
td,
.array-cell {
  color: var(--aqua-text) !important;
}

.subtitle,
.meta,
.muted,
.hint,
.empty,
.refresh,
p.subtitle {
  color: var(--aqua-muted) !important;
}

.badge,
.pill,
.refresh.active {
  color: var(--aqua-primary-strong) !important;
  border-color: rgba(8, 126, 164, 0.42) !important;
  background: rgba(215, 238, 247, 0.86) !important;
}

input,
select,
textarea {
  color: var(--aqua-text) !important;
  background: color-mix(in srgb, var(--aqua-surface) 92%, white 8%) !important;
  border: 1px solid rgba(138, 167, 180, 0.5) !important;
  border-radius: 14px !important;
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--aqua-primary) !important;
  box-shadow: 0 0 0 3px rgba(8, 126, 164, 0.12) !important;
}

button,
.btn,
.action-btn,
.refresh {
  border-radius: 14px !important;
  font-weight: 750 !important;
}

button:not(.aqua-menu-toggle):not(.aqua-logout),
.btn.primary,
.action-btn:not(.secondary):not(.danger) {
  border: 1px solid rgba(8, 126, 164, 0.22) !important;
  color: #ffffff !important;
  background: linear-gradient(180deg, var(--aqua-primary), #066b8c) !important;
  box-shadow: 0 12px 24px rgba(8, 126, 164, 0.18) !important;
}

button.secondary,
.action-btn.secondary,
.modal-close {
  color: var(--aqua-text) !important;
  background: color-mix(in srgb, var(--aqua-surface) 86%, transparent) !important;
  border-color: var(--aqua-border) !important;
  box-shadow: none !important;
}

button.danger,
.action-btn.danger,
.chip.danger {
  color: var(--aqua-danger) !important;
  background: var(--aqua-danger-soft) !important;
  border-color: rgba(180, 35, 24, 0.24) !important;
  box-shadow: none !important;
}

table {
  background: transparent !important;
}

th,
td {
  border-color: rgba(138, 167, 180, 0.32) !important;
}

.reload-devs-branding {
  color: var(--aqua-muted) !important;
}

.reload-devs-branding strong {
  color: var(--aqua-primary) !important;
}

html[data-aqua-page="auth"] body,
body.aqua-auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

html[data-aqua-page="auth"] body .panel::before,
body.aqua-auth-page .panel::before {
  content: "Aqua Lumini Tech";
  display: block;
  width: 100%;
  margin: 0 0 14px;
  padding-top: 96px;
  text-align: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--aqua-text);
  background:
    radial-gradient(circle at center 42px, #0b1b26 0 42px, transparent 43px),
    url("/assets/images/appIconLogo.png") center 0 / 84px 84px no-repeat;
}

.settings-grid,
.notifications-list {
  display: grid;
  gap: 16px;
}

.settings-option,
.notification-card {
  border: 1px solid var(--aqua-border);
  border-radius: 16px;
  padding: 14px;
  background: var(--aqua-surface-soft);
}

.settings-option {
  display: grid;
  gap: 8px;
}

.settings-option label,
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toggle-row input {
  width: auto;
}

.notification-card {
  display: grid;
  gap: 10px;
}

.notification-card.unread {
  border-color: rgba(8, 126, 164, 0.48);
  box-shadow: 0 12px 24px rgba(8, 126, 164, 0.1);
}

.notification-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.notification-title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
}

.notification-meta {
  color: var(--aqua-muted);
  font-size: 12px;
}

.notification-dot {
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 999px;
  background: var(--aqua-primary);
}

.empty-state {
  padding: 52px 16px;
  text-align: center;
  color: var(--aqua-muted);
}

html[data-aqua-page="auth"] body .panel,
body.aqua-auth-page .panel {
  max-width: 500px;
  padding: 24px !important;
}

html[data-aqua-page="auth"] body h1,
body.aqua-auth-page h1 {
  margin-top: 0;
}

@media (max-width: 980px) {
  .aqua-app-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .aqua-menu-toggle {
    display: block;
  }

  .aqua-main-nav {
    display: none;
    flex-basis: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-top: 4px;
  }

  .aqua-app-header[data-open="true"] .aqua-main-nav {
    display: flex;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .aqua-app-header {
    padding: 12px;
  }

  .aqua-brand-title {
    font-size: 15px;
  }

  .aqua-brand-subtitle {
    display: none;
  }

  .aqua-main-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
  }

  .aqua-app-header[data-open="true"] .aqua-main-nav {
    display: flex;
  }

  .aqua-main-nav a,
  .aqua-main-nav button {
    width: 100%;
    justify-content: flex-start;
  }

  .aqua-nav-separator {
    width: 100%;
    height: 1px;
    min-height: 1px;
  }

  .wrap {
    width: min(100% - 24px, 1200px);
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .aqua-app-open-banner {
    grid-template-columns: 1fr;
    align-items: stretch;
  }
}

/* Shell vertical, loaded after legacy page CSS to prevent the old horizontal menu. */
html,
body {
  overflow-x: hidden !important;
}

body {
  background:
    radial-gradient(circle at 50% -20%, rgba(8, 126, 164, 0.2), transparent 34%),
    linear-gradient(180deg, var(--aqua-bg-deep), var(--aqua-bg-mid) 48%, var(--aqua-surface) 100%) !important;
}

nav.main-nav,
.main-nav {
  display: none !important;
}

.aqua-nav-icon {
  width: 24px;
  min-width: 24px;
  height: 24px;
  display: inline-grid;
  place-items: center;
  color: currentColor;
}

.aqua-nav-icon svg,
.aqua-admin-chevron svg {
  width: 20px;
  height: 20px;
  display: block;
}

.aqua-admin-menu {
  display: grid;
  gap: 6px;
}

.aqua-admin-menu summary {
  list-style: none;
  user-select: none;
}

.aqua-admin-menu summary::-webkit-details-marker {
  display: none;
}

.aqua-admin-chevron {
  margin-left: auto;
  transition: transform 0.16s ease;
}

.aqua-admin-menu[open] .aqua-admin-chevron {
  transform: rotate(180deg);
}

.aqua-admin-subnav {
  display: grid;
  gap: 6px;
  padding-left: 12px;
  border-left: 1px solid rgba(138, 167, 180, 0.36);
}

.aqua-admin-subnav a {
  min-height: 36px !important;
  font-size: 12px !important;
}

.aqua-main-nav,
.aqua-main-nav a,
.aqua-main-nav button,
.aqua-admin-menu summary {
  min-width: 0;
}

.aqua-main-nav a,
.aqua-main-nav button,
.aqua-admin-menu summary {
  display: flex !important;
  width: 100%;
  align-items: center;
  justify-content: flex-start !important;
  gap: 10px;
  text-align: left;
}

.aqua-admin-menu summary,
.aqua-main-nav a,
.aqua-main-nav button {
  min-height: 44px;
}

.aqua-admin-menu summary {
  border-radius: var(--aqua-radius-control) !important;
  border: 1px solid rgba(138, 167, 180, 0.36) !important;
  padding: 8px 12px !important;
  color: var(--aqua-text) !important;
  background: color-mix(in srgb, var(--aqua-surface) 82%, transparent) !important;
  font-size: 13px;
  font-weight: 750 !important;
  cursor: pointer;
}

.aqua-admin-menu summary:hover,
.aqua-admin-menu summary[aria-current="page"] {
  border-color: rgba(8, 126, 164, 0.5) !important;
  color: var(--aqua-primary) !important;
  background: var(--aqua-primary-soft) !important;
}

.aqua-logout {
  margin-top: auto;
}

@media (min-width: 981px) {
  html[data-aqua-page="protected"] body {
    padding-left: var(--aqua-shell-width);
  }

  body.aqua-shell {
    padding-left: var(--aqua-shell-width);
  }

  .aqua-app-header {
    position: fixed !important;
    inset: 0 auto 0 0;
    width: var(--aqua-shell-width);
    height: 100vh;
    height: 100dvh;
    display: grid !important;
    grid-template-rows: auto minmax(0, 1fr);
    align-items: stretch !important;
    justify-content: stretch !important;
    gap: 0;
    padding: 0 !important;
    border-right: 1px solid rgba(138, 167, 180, 0.34);
    border-bottom: 0;
    overflow: clip;
  }

  .aqua-brand {
    padding: 18px;
    color: #ffffff !important;
    background: linear-gradient(135deg, var(--aqua-primary), var(--aqua-secondary));
  }

  .aqua-brand-subtitle {
    color: rgba(255, 255, 255, 0.78) !important;
  }

  .aqua-menu-toggle {
    display: none !important;
  }

  .aqua-main-nav {
    display: flex !important;
    flex-direction: column;
    align-items: stretch !important;
    justify-content: flex-start !important;
    gap: 8px;
    width: 100%;
    height: 100%;
    min-height: 0;
    padding: 14px;
    visibility: visible !important;
    opacity: 1 !important;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .aqua-main-nav::-webkit-scrollbar {
    width: 8px;
  }

  .aqua-main-nav::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: rgba(8, 126, 164, 0.32);
  }
}

@media (max-width: 980px) {
  html[data-aqua-page="protected"] body {
    padding-top: 74px;
  }

  body.aqua-shell {
    padding-top: 74px;
  }

  .aqua-app-header {
    position: fixed !important;
    inset: 0 0 auto 0;
    display: flex !important;
    align-items: center !important;
    flex-wrap: wrap;
    max-height: 100vh;
    padding: 10px 12px !important;
    overflow: visible;
  }

  .aqua-brand {
    flex: 1 1 auto;
  }

  .aqua-menu-toggle {
    display: block !important;
  }

  .aqua-main-nav {
    display: none !important;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch !important;
    justify-content: flex-start !important;
    gap: 8px;
    max-height: min(68vh, 520px);
    margin-top: 8px;
    padding: 10px;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    border: 1px solid rgba(138, 167, 180, 0.34);
    border-radius: 18px;
    background: color-mix(in srgb, var(--aqua-surface) 94%, transparent);
    box-shadow: var(--aqua-shadow);
  }

  .aqua-app-header[data-open="true"] .aqua-main-nav {
    display: flex !important;
  }
}

/* Page surfaces aligned with Flutter GlassCard/Card defaults. */
.wrap {
  max-width: 1120px !important;
}

.panel,
.summary-card,
.aquario-card,
.device-row,
.form-section,
.notification-card,
.settings-option,
#updateStatus,
#log,
pre {
  border-radius: var(--aqua-radius-card) !important;
  border: 1px solid var(--aqua-border) !important;
  background: color-mix(in srgb, var(--aqua-surface) 82%, transparent) !important;
  box-shadow: var(--aqua-shadow) !important;
  backdrop-filter: blur(16px);
}

.device-row,
.form-section,
.settings-option,
.notification-card,
#updateStatus,
#log,
pre {
  background: color-mix(in srgb, var(--aqua-surface-soft) 88%, transparent) !important;
}

.summary-card strong {
  font-size: 24px !important;
  font-weight: 800 !important;
}

.summary-card span,
.field label,
.muted {
  color: var(--aqua-muted) !important;
}

.controls,
.aquario-actions,
.device-actions,
.notification-actions,
.actions {
  gap: 10px !important;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--aqua-primary);
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--aqua-primary) 22%, transparent);
}

input[type="range"]::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  margin-top: -7px;
  border-radius: 50%;
  background: var(--aqua-primary);
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--aqua-primary) 10%, transparent);
}

.progress-track {
  background: color-mix(in srgb, var(--aqua-primary) 16%, transparent) !important;
  border-color: rgba(8, 126, 164, 0.24) !important;
}

.progress-fill {
  background: linear-gradient(90deg, var(--aqua-primary), var(--aqua-secondary)) !important;
}

.empty,
.empty-state {
  color: var(--aqua-muted) !important;
}

.empty-icon {
  display: block;
  margin: 0 auto 10px;
  font-size: 48px;
  color: var(--aqua-muted);
}