:root {
  color-scheme: dark;
  --bg: #020711;
  --surface: #0a141f;
  --border: #1a2a3f;
  --text: #e0e8f0;
  --muted: #8a9aaa;
  --cyan: #24d8f0;
  --violet: #a065f5;
  --purple-dark: #1a0f2e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(ellipse at 98% 8%, #2a1a4d 0%, transparent 50%),
              radial-gradient(ellipse at 2% 95%, #0a3a5a33 0%, transparent 60%),
              var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

button, input, select {
  font: inherit;
}

button, .button {
  border: 1px solid #2a3f52;
  background: #0f1d2e;
  color: var(--text);
  border-radius: 8px;
  padding: 10px 16px;
  cursor: pointer;
  display: inline-block;
  transition: all 0.2s ease;
}

button:hover {
  border-color: var(--cyan);
  background: #142a38;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.full-width {
  width: 100%;
}

.primary {
  background: linear-gradient(110deg, #00c8e6, #3a6eff 56%, #9540f0);
  color: white;
  border: 0;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(58, 110, 255, 0.3);
}

.primary:hover {
  box-shadow: 0 12px 32px rgba(58, 110, 255, 0.4);
  transform: translateY(-2px);
}

button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* HEADER */
header {
  height: auto;
  border-bottom: 1px solid #1f3a52;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 30px;
  background: linear-gradient(100deg, #0a1428, #0f1f3d 50%, #1a0f3a);
  gap: 40px;
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
  flex: 1;
}

.logo {
  background: linear-gradient(135deg, #00d9f0, #3a7fff, #a540f0);
  border-radius: 12px;
  font-size: 28px;
  width: 48px;
  height: 48px;
  text-align: center;
  line-height: 48px;
  box-shadow: 0 8px 24px rgba(58, 127, 255, 0.25);
}

.brand strong {
  font-size: 22px;
  letter-spacing: -0.5px;
}

.brand small {
  display: block;
  letter-spacing: 2px;
  font-size: 9px;
  color: var(--muted);
  margin-top: 2px;
}

em {
  font-style: normal;
  color: var(--cyan);
}

.header-features {
  display: flex;
  gap: 24px;
  flex: 1;
  justify-content: center;
}

.feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}

.feature .icon {
  font-size: 18px;
}

.feature {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
}

.feature small {
  display: block;
  font-size: 9px;
  color: var(--muted);
  font-weight: 400;
}

.brand-indicator {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  text-align: right;
}

.brand-indicator {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
}

.brand-indicator small {
  display: block;
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 1.5px;
}

/* SIDEBAR */
aside {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 230px;
  padding: 20px 12px;
  border-right: 1px solid var(--border);
  min-height: 100vh;
  background: linear-gradient(180deg, #06101f, #0a111e);
}

.sidebar-top {
  margin-bottom: 20px;
}

.nav-label, .eyebrow {
  font-size: 10px;
  letter-spacing: 1.6px;
  color: var(--muted);
  font-weight: 650;
}

.nav-label {
  padding-left: 14px;
  margin-bottom: 12px;
  margin-top: 16px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  background: transparent;
  border-color: transparent;
  font-size: 13px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.nav-item .nav-icon {
  font-size: 16px;
  min-width: 18px;
}

.nav-item:hover {
  background: #0f1f32;
}

.nav-item.selected {
  background: linear-gradient(90deg, #1a4a6a, #1a2a4a);
  border: 1px solid #2a6a9a;
  color: var(--cyan);
  box-shadow: inset 0 0 12px rgba(36, 216, 240, 0.08);
}

.sidebar-bottom {
  margin-top: auto;
  padding: 20px 12px;
  border-top: 1px solid #1a2a3f;
}

.orb {
  font-size: 64px;
  color: var(--cyan);
  text-shadow: 0 0 30px #24d8f077;
  margin-bottom: 10px;
}

.sidebar-bottom strong {
  font-size: 16px;
  line-height: 1.4;
  display: block;
  margin-bottom: 8px;
}

.sidebar-bottom p, .sidebar-bottom small {
  color: var(--muted);
  font-size: 11px;
  margin: 4px 0;
}

/* MAIN */
main {
  margin-left: 230px;
  padding: 30px 32px;
  max-width: 1800px;
}

.breadcrumb {
  font-size: 10px;
  letter-spacing: 1.4px;
  margin-bottom: 22px;
  color: var(--muted);
}

.breadcrumb > span {
  margin-left: 14px;
}

.runtime-badge {
  float: right;
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 10px;
  background: #0a141f;
}

/* HERO */
.hero {
  position: relative;
  min-height: 280px;
  padding: 40px 48px;
  border: 1px solid #2a4a6a;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(90deg, #0a1a34, #0f2a48),
              url(hero.jpg) center/cover;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 44px;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin: 12px 0 16px;
}

.hero p {
  color: #a0b8d0;
  font-size: 14px;
  margin: 0;
}

.hero-art {
  position: absolute;
  right: 80px;
  top: 20px;
  width: 240px;
  height: 260px;
}

.phone {
  transform: rotate(12deg);
  width: 120px;
  height: 220px;
  margin: 20px auto;
  border: 3px solid #3aa8d0;
  border-radius: 28px;
  background: linear-gradient(145deg, #0f2a42, #050d18);
  box-shadow: 0 0 50px #24d8f044, inset 0 0 24px #2a7a9a33;
  text-align: center;
  padding: 48px 10px;
}

.android {
  font-size: 40px;
  color: var(--cyan);
  line-height: 0.8;
  margin-bottom: 40px;
}

.phone small {
  font-size: 10px;
  letter-spacing: 3px;
  color: #88c8d8;
}

.hero-note {
  position: absolute;
  bottom: 20px;
  right: 25px;
  font-size: 9px;
  letter-spacing: 1.3px;
  color: #7a9aaa;
}

.eyebrow {
  font-size: 10px;
  letter-spacing: 1.6px;
  color: var(--muted);
  font-weight: 650;
}

/* STATUS GRID */
.status-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

.status-card {
  background: linear-gradient(140deg, #0a1530ee, #0a1125f2);
  border: 1px solid #1f3a52;
  border-radius: 12px;
  padding: 20px;
  box-shadow: inset 0 1px 0 #5a8bff08;
}

.status-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.status-header .eyebrow {
  margin: 0;
}

.status-icon {
  font-size: 20px;
}

.status-card h2 {
  font-size: 20px;
  margin: 8px 0;
}

.status-card small {
  color: var(--muted);
  font-size: 11px;
  display: block;
  margin-top: 4px;
}

.status-card select {
  width: 100%;
  background: #0a1420;
  border: 1px solid #1f3a52;
  color: #a8c0d0;
  padding: 8px;
  border-radius: 6px;
  font-size: 11px;
  margin-top: 10px;
}

.battery-track {
  height: 6px;
  background: #1a2f42;
  border-radius: 8px;
  margin: 12px 0;
}

.battery-track div {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), #00e8ff);
  width: 0;
  border-radius: 8px;
}

/* WORKSPACE */
.workspace-container {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
}

.workspace-main {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.section-head h2 {
  margin: 0;
  font-size: 16px;
}

.section-head > span {
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 1px;
}

h2 {
  font-size: 18px;
  margin: 10px 0;
}

h3 {
  font-size: 18px;
  letter-spacing: -0.4px;
  margin: 0;
}

p, small {
  color: var(--muted);
}

article {
  background: linear-gradient(140deg, #0a1530ee, #0a1125f2);
  border: 1px solid #1f3a52;
  border-radius: 12px;
  padding: 22px;
  box-shadow: inset 0 1px 0 #5a8bff08;
}

.firmware-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 20px;
}

.drop {
  text-align: center;
  padding: 32px 20px;
  border: 2px dashed #3a6a9a;
  border-radius: 10px;
  background: linear-gradient(135deg, #0a2a4488, #0a1a3388);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.drop:hover {
  border-color: var(--cyan);
  background: linear-gradient(135deg, #0a3a5a99, #0a2a4499);
}

.file-icon {
  font-size: 44px;
  color: var(--cyan);
  margin-bottom: 8px;
}

.drop h3 {
  margin: 12px 0 6px;
  font-size: 16px;
}

.drop p {
  font-size: 12px;
  margin: 6px 0 16px;
}

.drop small {
  display: block;
  overflow-wrap: anywhere;
  margin-top: 12px;
  font-size: 10px;
  color: #6a8aaa;
}

.inspector {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.inspector h3 {
  margin: 6px 0;
  font-size: 16px;
}

.inspector p {
  font-size: 11px;
  margin: 0 0 12px;
}

.inspector label {
  font-size: 10px;
  color: var(--muted);
  margin-bottom: 4px;
  display: block;
}

input:not([type=checkbox]):not([type=file]) {
  display: block;
  width: 100%;
  background: #0a1420;
  border: 1px solid #1f3a52;
  border-radius: 6px;
  padding: 10px;
  color: var(--text);
  margin-bottom: 10px;
  font-size: 12px;
}

input:not([type=checkbox]):not([type=file]):focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(36, 216, 240, 0.1);
}

dl {
  font-size: 10px;
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 8px 12px;
  margin: 12px 0 0;
}

dt {
  color: var(--muted);
  font-weight: 500;
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--text);
}

.pipeline {
  margin-top: 0;
}

.steps {
  display: flex;
  justify-content: space-between;
  margin: 24px 4px 18px;
  gap: 8px;
}

.steps span {
  border: 1px solid #2a4a6a;
  background: #0f1f32;
  width: 32px;
  height: 32px;
  text-align: center;
  border-radius: 50%;
  position: relative;
  font-size: 12px;
  line-height: 32px;
  font-weight: 600;
}

.steps small {
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 9px;
  color: var(--muted);
}

progress {
  width: 100%;
  height: 6px;
  accent-color: var(--cyan);
  margin-top: 20px;
  border: none;
  background: #1a2a3f;
  border-radius: 8px;
}

.pipeline p {
  font-size: 10px;
  margin-bottom: 0;
  margin-top: 12px;
}

.safety {
  padding: 22px;
  grid-column: 1 / -1;
}

.pre-flash-gates {
  grid-column: auto;
  padding: 18px;
  position: sticky;
  top: 100px;
  max-height: fit-content;
}

.safety p {
  font-size: 11px;
}

.safety ul {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}

.safety li {
  font-size: 12px;
  color: #a9bdd6;
  padding: 10px 0;
  border-bottom: 1px solid #1a2a3f;
  display: flex;
  align-items: center;
  gap: 10px;
}

.safety li input {
  margin: 0;
  width: auto;
  accent-color: var(--cyan);
  cursor: not-allowed;
}

.check {
  display: flex;
  gap: 9px;
  margin: 12px 0;
  font-size: 11px;
  color: #b8c8dd;
  align-items: center;
}

.check input {
  accent-color: var(--cyan);
  flex-shrink: 0;
  width: auto;
  margin: 0;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
}

.block-note {
  color: #d4b987;
  font-size: 11px;
  margin-top: 10px;
  padding: 10px;
  background: rgba(212, 185, 135, 0.08);
  border-radius: 6px;
  border-left: 3px solid #d4b987;
}

pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: 11px/1.8 "Fira Code", "Courier New", monospace;
  color: #9dbbd1;
  margin: 0;
}

.console {
  margin-top: 20px;
  padding: 18px 22px;
}

.console button {
  font-size: 10px;
  padding: 5px 12px;
}

.console pre {
  height: 150px;
  overflow: auto;
  background: #050a14;
  border: 1px solid #1a2a3f;
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
}

.live-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  margin-left: 8px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

footer {
  display: flex;
  justify-content: space-between;
  color: #5a7a8a;
  font-size: 9px;
  letter-spacing: 1px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #1a2a3f;
}

/* DIALOGS */
dialog {
  background: linear-gradient(140deg, #0a1530ee, #0a1125f2);
  color: var(--text);
  border: 1px solid #2a4a6a;
  border-radius: 14px;
  width: 560px;
  padding: 28px;
}

dialog::backdrop {
  background: #020711e0;
  backdrop-filter: blur(6px);
}

dialog p {
  font-size: 12px;
  margin: 8px 0;
}

dialog h2 {
  margin: 12px 0 16px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

section[hidden] {
  display: none;
}

#devices-detail article,
#operations article {
  margin: 15px 0;
}

#guide-page h2 {
  margin-top: 25px;
}

#guide-page p {
  max-width: 800px;
}

#hosted-notice {
  padding: 20px;
  margin-bottom: 22px;
  border: 1px solid #2a4a6a;
  border-radius: 12px;
  background: #0a1f35;
}

#hosted-notice[hidden] {
  display: none;
}

#hosted-notice p {
  font-size: 12px;
  margin: 7px 0 15px;
}

#hosted-notice a {
  font-size: 12px;
  text-decoration: none;
  margin: 4px 4px 4px 0;
  color: var(--cyan);
}

/* RESPONSIVE */
@media (max-width: 1400px) {
  .workspace-container {
    grid-template-columns: 1fr;
  }

  .safety {
    grid-column: 1;
  }
}

@media (max-width: 1150px) {
  .firmware-panel {
    grid-template-columns: 1fr;
  }

  .hero-art {
    right: 30px;
    width: 160px;
    height: 180px;
  }

  .phone {
    width: 90px;
    height: 160px;
    padding: 32px 8px;
  }
}

@media (max-width: 900px) {
  header {
    flex-wrap: wrap;
    gap: 16px;
    padding: 12px 20px;
  }

  .header-features {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    gap: 12px;
  }

  .brand-indicator {
    align-items: flex-start;
    text-align: left;
  }

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

  main {
    margin-left: 0;
  }

  aside {
    position: static;
    width: 100%;
    min-height: auto;
    padding: 12px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 20px;
  }

  .sidebar-top {
    display: none;
  }

  .nav-label, .sidebar-bottom {
    display: none;
  }

  .sidebar-nav {
    flex-direction: row;
    gap: 4px;
    overflow-x: auto;
    flex: 1;
  }

  .nav-item {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .hero {
    min-height: 200px;
    padding: 20px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-art {
    display: none;
  }

  .hero-note {
    font-size: 8px;
  }
}

@media (max-width: 640px) {
  header {
    flex-direction: column;
    padding: 12px;
  }

  .brand strong {
    font-size: 18px;
  }

  .header-features {
    width: 100%;
    gap: 8px;
  }

  .feature {
    font-size: 10px;
  }

  .brand-indicator {
    width: 100%;
  }

  main {
    padding: 16px 12px;
  }

  .hero {
    min-height: 160px;
    padding: 16px;
  }

  .hero h1 {
    font-size: 26px;
  }

  .hero p {
    font-size: 12px;
  }

  dialog {
    width: 90vw;
    padding: 20px;
  }

  .steps {
    margin: 16px 0 12px;
  }

  .steps span {
    width: 28px;
    height: 28px;
    font-size: 11px;
    line-height: 28px;
  }
}

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