.portal-device-settings {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.portal-device-settings-empty {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 12, 12, 0.08) 0%, transparent 55%),
    linear-gradient(180deg, #fff 0%, #fafbfc 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.portal-device-settings-empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255, 12, 12, 0.14) 0%, rgba(255, 12, 12, 0.05) 100%);
  color: var(--brand-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 4px;
  box-shadow: 0 8px 24px rgba(255, 12, 12, 0.12);
}

.portal-device-settings-empty-title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.portal-device-settings-empty p {
  margin: 0;
  max-width: 360px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text3);
}

.portal-device-settings-inverter-card,
.portal-device-settings-card {
  position: relative;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.portal-device-settings-inverter-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
}

.portal-device-settings-inverter-icon {
  position: relative;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 15px;
  background: linear-gradient(145deg, #ff2a2a 0%, #ff0c0c 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 8px 20px rgba(255, 12, 12, 0.28);
}

.portal-device-settings-inverter-copy {
  position: relative;
  min-width: 0;
  flex: 1;
}

.portal-device-settings-inverter-eyebrow {
  display: block;
  margin-bottom: 3px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-primary);
}

.portal-device-settings-inverter-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.02em;
}

.portal-device-settings-inverter-sn {
  margin-top: 3px;
  font-size: 12px;
  color: var(--text3);
  font-family: 'IBM Plex Mono', monospace;
}

.portal-device-settings-inverter-status {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(16, 16, 16, 0.04);
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  flex-shrink: 0;
}

.portal-device-settings-card {
  padding: 20px 20px 22px;
}

.portal-device-settings-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 3px;
  border-radius: 0 0 999px 999px;
  background: linear-gradient(90deg, transparent 0%, #ff0c0c 20%, #ff5a5a 50%, #ff0c0c 80%, transparent 100%);
  opacity: 0.85;
}

.portal-device-settings-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.portal-device-settings-eyebrow {
  display: block;
  margin-bottom: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-primary);
}

.portal-device-settings-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
}

.portal-device-settings-sub {
  margin: 6px 0 0;
  max-width: 520px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text3);
}

.portal-device-settings-count {
  flex-shrink: 0;
  min-width: 72px;
  padding: 10px 12px;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(255, 12, 12, 0.1) 0%, rgba(255, 12, 12, 0.04) 100%);
  border: 1px solid rgba(255, 12, 12, 0.12);
  text-align: center;
}

.portal-device-settings-count-value {
  display: block;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--brand-primary);
}

.portal-device-settings-count-label {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text3);
}

.portal-device-settings-list-stage {
  position: relative;
  min-height: 220px;
}

.portal-device-settings-state {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  color: var(--text3);
  font-size: 14px;
  padding: 28px 24px;
  border-radius: 16px;
  background: linear-gradient(180deg, #fafbfc 0%, #f4f6f8 100%);
  border: 1px dashed rgba(16, 16, 16, 0.08);
}

.portal-device-settings-state-loading {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(2px);
  border: none;
  z-index: 2;
}

.portal-device-settings-state-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(16, 16, 16, 0.05);
  color: var(--text3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.portal-device-settings-state-error {
  color: var(--brand-primary);
  background: linear-gradient(180deg, #fff8f8 0%, #fff1f1 100%);
  border-color: rgba(255, 12, 12, 0.14);
}

.portal-device-settings-state-error .portal-device-settings-state-icon {
  background: rgba(255, 12, 12, 0.1);
  color: var(--brand-primary);
}

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

.portal-device-settings-grid-skeleton {
  opacity: 0.55;
  pointer-events: none;
}

.portal-device-settings-skeleton {
  min-height: 132px;
  border-radius: 18px;
  background: linear-gradient(90deg, #f2f4f7 0%, #eceff3 45%, #f2f4f7 100%);
  background-size: 220% 100%;
  animation: portal-device-settings-shimmer 1.4s ease infinite;
}

@keyframes portal-device-settings-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

.portal-device-settings-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
  min-height: 132px;
  padding: 16px;
  border: 1px solid rgba(16, 16, 16, 0.06);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, #fafbfc 100%);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  overflow: hidden;
  isolation: isolate;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 4px 16px rgba(16, 16, 16, 0.04);
  transition: border-color 0.2s ease;
}

.portal-device-settings-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.65);
}

.portal-device-settings-tile:hover {
  border-color: rgba(255, 12, 12, 0.14);
}

.portal-device-settings-tile-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.portal-device-settings-tile-icon-wrap {
  display: inline-flex;
  padding: 3px;
  border-radius: 15px;
  background: linear-gradient(145deg, rgba(255, 12, 12, 0.22) 0%, rgba(255, 12, 12, 0.06) 100%);
}

.portal-device-settings-tile.is-battery .portal-device-settings-tile-icon-wrap {
  background: linear-gradient(145deg, rgba(34, 197, 94, 0.24) 0%, rgba(34, 197, 94, 0.08) 100%);
}

.portal-device-settings-tile.is-charge .portal-device-settings-tile-icon-wrap {
  background: linear-gradient(145deg, rgba(245, 158, 11, 0.26) 0%, rgba(245, 158, 11, 0.08) 100%);
}

.portal-device-settings-tile.is-grid .portal-device-settings-tile-icon-wrap {
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.24) 0%, rgba(59, 130, 246, 0.08) 100%);
}

.portal-device-settings-tile-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  background: #fff;
  color: var(--brand-primary);
  box-shadow: 0 4px 12px rgba(255, 12, 12, 0.1);
}

.portal-device-settings-tile.is-battery .portal-device-settings-tile-icon {
  color: #16a34a;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.12);
}

.portal-device-settings-tile.is-charge .portal-device-settings-tile-icon {
  color: #d97706;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.12);
}

.portal-device-settings-tile.is-grid .portal-device-settings-tile-icon {
  color: #2563eb;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.12);
}

.portal-device-settings-tile-action {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 999px;
  border: 1px solid rgba(16, 16, 16, 0.06);
  background: rgba(255, 255, 255, 0.88);
  color: var(--text3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.portal-device-settings-tile:hover .portal-device-settings-tile-action {
  background: #fff;
  border-color: rgba(255, 12, 12, 0.16);
  color: var(--brand-primary);
}

.portal-device-settings-tile-body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding-top: 2px;
}

.portal-device-settings-tile-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portal-device-settings-tile-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.portal-device-settings-tile-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid rgba(16, 16, 16, 0.06);
  background: rgba(255, 255, 255, 0.72);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text2);
}

.portal-device-settings-tile-unit {
  display: inline-flex;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid rgba(255, 12, 12, 0.1);
  background: rgba(255, 255, 255, 0.82);
  font-size: 10px;
  font-weight: 700;
  color: var(--brand-primary);
}

/* Dialog */
.device-setting-backdrop {
  backdrop-filter: blur(4px);
}

.device-setting-dialog {
  width: min(500px, calc(100vw - 32px));
  max-height: min(88vh, 760px);
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid rgba(16, 16, 16, 0.08);
  box-shadow: 0 24px 60px rgba(16, 16, 16, 0.2);
}

.device-setting-dialog-hero {
  position: relative;
  padding: 22px 20px 18px;
  background: linear-gradient(180deg, #fafbfc 0%, #fff 100%);
  border-bottom: 1px solid rgba(16, 16, 16, 0.06);
}

.device-setting-dialog-hero.is-battery {
  background: linear-gradient(180deg, #f8fcf9 0%, #fff 100%);
}

.device-setting-dialog-hero.is-charge {
  background: linear-gradient(180deg, #faf9f6 0%, #fff 100%);
}

.device-setting-dialog-hero.is-grid {
  background: linear-gradient(180deg, #f8faff 0%, #fff 100%);
}

.device-setting-dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(16, 16, 16, 0.08);
  transition: background 0.15s ease, color 0.15s ease;
}

.device-setting-dialog-close:hover {
  background: #fff;
  color: var(--brand-primary);
}

.device-setting-dialog-hero-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(145deg, #ff2a2a 0%, #ff0c0c 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 12px;
  box-shadow: 0 10px 24px rgba(255, 12, 12, 0.24);
}

.device-setting-dialog-hero.is-battery .device-setting-dialog-hero-icon {
  background: linear-gradient(145deg, #34d399 0%, #16a34a 100%);
  box-shadow: 0 10px 24px rgba(34, 197, 94, 0.24);
}

.device-setting-dialog-hero.is-charge .device-setting-dialog-hero-icon {
  background: linear-gradient(145deg, #fbbf24 0%, #d97706 100%);
  box-shadow: 0 10px 24px rgba(245, 158, 11, 0.24);
}

.device-setting-dialog-hero.is-grid .device-setting-dialog-hero-icon {
  background: linear-gradient(145deg, #60a5fa 0%, #2563eb 100%);
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.24);
}

.device-setting-dialog-eyebrow {
  display: block;
  margin-bottom: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-primary);
}

.device-setting-dialog-title {
  margin: 0;
  padding-right: 36px;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--text);
}

.device-setting-dialog-unit {
  display: inline-flex;
  margin-top: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(16, 16, 16, 0.05);
  font-size: 11px;
  font-weight: 700;
  color: var(--text2);
}

.device-setting-dialog-body {
  flex: 1;
  overflow: auto;
  padding: 18px 20px;
}

.device-setting-dialog-hint {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text3);
}

.device-setting-dialog-state {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: var(--text3);
  font-size: 14px;
}

.device-setting-dialog-state-error {
  color: var(--brand-primary);
}

.device-setting-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.device-setting-option {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 13px 14px;
  border: 1px solid rgba(16, 16, 16, 0.07);
  border-radius: 14px;
  background: #fff;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.device-setting-option:hover {
  border-color: rgba(255, 12, 12, 0.18);
  box-shadow: 0 6px 18px rgba(255, 12, 12, 0.08);
  transform: translateY(-1px);
}

.device-setting-option.is-selected {
  border-color: rgba(255, 12, 12, 0.3);
  background: linear-gradient(180deg, #fffafa 0%, #fff3f3 100%);
  box-shadow: 0 0 0 3px rgba(255, 12, 12, 0.08);
}

.device-setting-option-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 11px;
  background: rgba(16, 16, 16, 0.05);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.device-setting-option.is-selected .device-setting-option-icon {
  background: rgba(255, 12, 12, 0.1);
  color: var(--brand-primary);
}

.device-setting-option-label {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.device-setting-option-radio {
  flex-shrink: 0;
  font-size: 18px;
  color: var(--text3);
}

.device-setting-option.is-selected .device-setting-option-radio {
  color: var(--brand-primary);
}

.device-setting-text-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.device-setting-text-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text3);
}

.device-setting-text-field {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  border: 1px solid rgba(16, 16, 16, 0.08);
  border-radius: 14px;
  background: linear-gradient(180deg, #fff 0%, #fcfcfd 100%);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.device-setting-text-field:focus-within {
  border-color: rgba(255, 12, 12, 0.28);
  box-shadow: 0 0 0 3px rgba(255, 12, 12, 0.08);
}

.device-setting-text-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 10px;
  background: rgba(255, 12, 12, 0.08);
  color: var(--brand-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.device-setting-text-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  outline: none;
}

.device-setting-feedback {
  margin-top: 14px;
  padding: 11px 12px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
}

.device-setting-feedback.is-success {
  color: #15803d;
  background: rgba(34, 197, 94, 0.12);
}

.device-setting-feedback.is-error {
  color: var(--brand-primary);
  background: rgba(255, 12, 12, 0.08);
}

.device-setting-dialog-footer {
  padding: 0 20px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, #fff 24%);
}

.device-setting-set-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 48px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(145deg, #ff2a2a 0%, #ff0c0c 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(255, 12, 12, 0.26);
  transition: opacity 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.device-setting-set-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(255, 12, 12, 0.32);
}

.device-setting-set-btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  box-shadow: none;
}

@media (max-width: 900px) {
  .portal-device-settings-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .portal-device-settings-inverter-status {
    display: none;
  }

  .portal-device-settings-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .portal-device-settings-count {
    align-self: flex-start;
  }
}