:root {
  --bg-top: #0b2239;
  --bg-bottom: #f4efe6;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-border: rgba(12, 35, 58, 0.12);
  --text-main: #10263b;
  --text-soft: #4c647c;
  --accent: #ef7d45;
  --accent-deep: #d5582f;
  --online: #118a63;
  --offline: #d94f4f;
  --pending: #c58b22;
  --shadow: 0 20px 50px rgba(15, 37, 60, 0.15);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --font-body: "Trebuchet MS", "Avenir Next", "Segoe UI", sans-serif;
  --font-heading: "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(239, 125, 69, 0.24), transparent 34%),
    radial-gradient(circle at top right, rgba(17, 138, 99, 0.18), transparent 24%),
    linear-gradient(180deg, var(--bg-top) 0%, #173b59 24%, var(--bg-bottom) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 80%);
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.16);
  color: #f6efe7;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.topbar__identity {
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 20px;
  align-items: stretch;
  margin-bottom: 24px;
}

.hero__content,
.hero__side,
.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero__content {
  padding: 32px;
  background: linear-gradient(145deg, rgba(255, 248, 240, 0.94), rgba(251, 243, 231, 0.84));
}

.hero__content h1 {
  margin: 10px 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1.05;
}

.hero__content p,
.panel__header p,
.device-card__hint,
.device-card__description,
.tip-card p,
.empty-state p {
  color: var(--text-soft);
  line-height: 1.6;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(16, 38, 59, 0.08);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.86);
}

.badge--online {
  color: var(--online);
}

.badge--offline {
  color: var(--offline);
}

.badge--pending {
  color: var(--pending);
}

.hero__side {
  padding: 28px;
  background:
    radial-gradient(circle at 20% 20%, rgba(239, 125, 69, 0.22), transparent 24%),
    linear-gradient(160deg, rgba(11, 34, 57, 0.94), rgba(17, 53, 81, 0.88));
  color: #f6efe7;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.signal-card {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
}

.signal-card__icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  font-size: 1.8rem;
  background: rgba(255, 255, 255, 0.16);
}

.signal-card__title {
  font-weight: 700;
  font-size: 1.1rem;
}

.signal-card__meta {
  margin-top: 4px;
  color: rgba(246, 239, 231, 0.75);
}

.signal-lines {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 120px;
  margin-top: 20px;
}

.signal-lines span {
  flex: 1;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(180deg, rgba(239, 125, 69, 0.94), rgba(255, 205, 145, 0.5));
  animation: pulse 2.6s ease-in-out infinite;
}

.signal-lines span:nth-child(1) {
  height: 42%;
}

.signal-lines span:nth-child(2) {
  height: 75%;
  animation-delay: 0.35s;
}

.signal-lines span:nth-child(3) {
  height: 96%;
  animation-delay: 0.7s;
}

.alerts {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.flash {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-weight: 700;
  box-shadow: var(--shadow);
}

.flash--success {
  background: rgba(17, 138, 99, 0.16);
  color: #0d6c4f;
}

.flash--error {
  background: rgba(217, 79, 79, 0.14);
  color: #a93b3b;
}

.flash--info {
  background: rgba(23, 59, 89, 0.14);
  color: #173b59;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.panel {
  padding: 24px;
  background: var(--panel);
  border-color: var(--panel-border);
}

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

.panel__header h2,
.empty-state h3,
.device-card h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.6rem;
}

.panel__header p {
  margin: 8px 0 0;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.device-grid--viewer {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

.device-card {
  padding: 20px;
  border-radius: 22px;
  border: 1px solid rgba(16, 38, 59, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(249, 244, 238, 0.94));
  transform: translateY(0);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.device-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(15, 37, 60, 0.1);
}

.status-online {
  box-shadow: inset 0 0 0 1px rgba(17, 138, 99, 0.12);
}

.status-offline {
  box-shadow: inset 0 0 0 1px rgba(217, 79, 79, 0.12);
}

.status-pending {
  box-shadow: inset 0 0 0 1px rgba(197, 139, 34, 0.14);
}

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

.device-card--viewer {
  padding: 22px;
}

.device-heading {
  display: flex;
  align-items: center;
  gap: 14px;
}

.status-dot {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 999px;
  border: 2px solid #10263b;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.45);
}

.status-dot--online {
  background: #1cc51c;
}

.status-dot--offline {
  background: #d94f4f;
}

.status-dot--pending {
  background: #d9b14f;
}

.device-card__hint,
.device-card__description {
  margin: 12px 0 0;
}

.status-pill {
  white-space: nowrap;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 700;
}

.status-pill--online {
  color: var(--online);
  background: rgba(17, 138, 99, 0.12);
}

.status-pill--offline {
  color: var(--offline);
  background: rgba(217, 79, 79, 0.12);
}

.status-pill--pending {
  color: var(--pending);
  background: rgba(197, 139, 34, 0.12);
}

.device-meta {
  display: grid;
  gap: 12px;
  margin: 18px 0;
}

.device-meta div {
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(16, 38, 59, 0.1);
}

.device-meta dt {
  font-size: 0.85rem;
  color: var(--text-soft);
}

.device-meta dd {
  margin: 6px 0 0;
  font-weight: 700;
}

.endpoint-label,
.stack-form span {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
}

.endpoint-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.endpoint-input,
.stack-form input,
.stack-form textarea {
  width: 100%;
  border: 1px solid rgba(16, 38, 59, 0.12);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  font: inherit;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.92);
}

.endpoint-input {
  font-size: 0.92rem;
}

.stack-form {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.stack-form label {
  display: block;
}

.toggle-row {
  display: flex !important;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(16, 38, 59, 0.12);
  border-radius: var(--radius-md);
  background: rgba(23, 59, 89, 0.05);
}

.toggle-row input {
  width: 20px;
  height: 20px;
  margin: 0;
  accent-color: var(--accent);
}

.toggle-row span {
  margin: 0;
}

.stack-form textarea {
  resize: vertical;
}

.primary-button,
.copy-button,
.ghost-button {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.primary-button {
  color: #fff8f0;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
}

.copy-button {
  color: #fff8f0;
  background: #173b59;
}

.ghost-button {
  margin-top: 16px;
  color: #173b59;
  background: rgba(23, 59, 89, 0.08);
}

.primary-button:hover,
.copy-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.inline-form {
  margin: 0;
}

.code-card {
  margin-top: 20px;
  border-radius: var(--radius-md);
  background: #11293f;
  color: #f6efe7;
  overflow-x: auto;
}

.code-card pre {
  margin: 0;
  padding: 18px;
}

.tips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.tip-card,
.empty-state {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(16, 38, 59, 0.05);
}

.tip-card strong {
  display: block;
  margin-bottom: 8px;
}

.empty-state {
  text-align: center;
  margin-top: 16px;
}

.empty-state__emoji {
  font-size: 3rem;
}

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

.auth-card {
  width: min(100%, 460px);
  padding: 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(255, 248, 240, 0.96), rgba(251, 243, 231, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.auth-card h1 {
  margin: 14px 0 10px;
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.08;
}

.auth-card__accent {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 20px;
  font-size: 2rem;
  background: linear-gradient(135deg, rgba(239, 125, 69, 0.2), rgba(17, 138, 99, 0.14));
}

.auth-note {
  margin: 0 0 18px;
  color: var(--text-soft);
  line-height: 1.6;
}

code {
  font-family: "Courier New", Courier, monospace;
}

@keyframes pulse {
  0%,
  100% {
    transform: scaleY(0.96);
    opacity: 0.82;
  }
  50% {
    transform: scaleY(1.04);
    opacity: 1;
  }
}

@media (max-width: 900px) {
  .hero,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1200px);
    padding-top: 20px;
  }

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

  .hero__content,
  .hero__side,
  .panel {
    padding: 20px;
  }

  .endpoint-row {
    grid-template-columns: 1fr;
  }
}