/*
  FLUX Console presentation layer.
  The ESP32 installer, manifest generation, and Web Serial engine
  remain owned by remote.js and the esp-web-install-button web component.
*/

:root {
  --color-canvas: #fafafa; /* Clinical neutrality aligns the console with the FLUX product platform. */
  --color-surface: #ffffff;
  --color-surface-subtle: #f5f7f8;
  --color-text: #0a0a0b;
  --color-text-muted: #52525b;
  --color-border: rgba(10, 10, 11, 0.08);
  --color-border-strong: rgba(10, 10, 11, 0.14);
  --color-hardware: #0891b2;
  --color-hardware-text: #0e7490; /* Text-safe teal preserves AA contrast on white. */
  --color-hardware-electric: #00e5ff;
  --color-hardware-soft: rgba(8, 145, 178, 0.09);
  --color-ready: #10b981;
  --color-ready-strong: #047857;
  --color-warning: #a16207;
  --color-error: #dc2626;
  --radius-control: 10px;
  --radius-card: 14px;
  --radius-feature: 16px;
  --shadow-card:
    0 1px 2px rgba(10, 10, 11, 0.04),
    0 12px 32px rgba(10, 10, 11, 0.06);
  --shadow-card-hover:
    0 2px 4px rgba(10, 10, 11, 0.05),
    0 20px 48px rgba(10, 10, 11, 0.09);
  --duration-fast: 160ms;
  --duration-base: 240ms;
  --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
  --font-sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  /* Legacy aliases keep every state rendered by remote.css inside the shared system. */
  --bg: var(--color-canvas);
  --bg2: var(--color-surface);
  --bg3: var(--color-surface-subtle);
  --ink: var(--color-text);
  --text: var(--color-text);
  --text2: var(--color-text-muted);
  --text3: #71717a;
  --border: var(--color-border);
  --accent: var(--color-hardware);
  --accent2: var(--color-hardware-text);
  --green: var(--color-ready-strong);
  --blue: var(--color-hardware-text);
  --amber: var(--color-warning);
  --error: var(--color-error);
  --mono: var(--font-mono);
  --sans: var(--font-sans);
}

/* Foundation */
html, body { overflow-x: clip; }

body {
  min-width: 0;
  background: var(--color-canvas);
  color: var(--color-text);
  font: 400 15px/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--font-sans);
  text-wrap: balance;
}

button, input, select, textarea { font-family: var(--font-sans); }

:focus-visible {
  outline: 3px solid var(--color-hardware);
  outline-offset: 3px;
}

.skip-link {
  border-radius: var(--radius-control);
  background: var(--color-text);
  color: var(--color-surface);
  font: 600 13px/1.2 var(--font-sans);
}

/* Navigation */
.console-nav {
  min-height: 72px;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 1px 0 rgba(10, 10, 11, 0.02);
  backdrop-filter: blur(18px);
}

.nav-inner {
  min-height: 72px;
  width: min(1200px, calc(100% - 48px));
  gap: 28px;
}

.nav-logo {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  color: var(--color-text);
  font: 750 15px/1 var(--font-sans);
  letter-spacing: -0.02em;
}

.nav-flux-mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 8px;
  background: var(--color-text);
  box-shadow: inset 0 -2px 0 var(--color-hardware);
  color: var(--color-surface);
  font: 600 14px/1 var(--font-mono);
}

.nav-logo strong { font: 700 17px/1 var(--font-sans); }

.nav-logo small {
  color: var(--color-text-muted);
  font: 500 11px/1.2 var(--font-mono);
}

footer b {
  color: var(--color-hardware-text);
  font-family: var(--font-mono);
}

.console-nav nav { gap: 26px; }

.console-nav nav a,
.nav-owner-link {
  color: var(--color-text-muted);
  font: 600 13px/1.2 var(--font-sans);
}

.console-nav nav a {
  position: relative;
  padding-block: 8px;
  transition: color var(--duration-fast) ease;
}

.console-nav nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--color-hardware);
  content: "";
  opacity: 0;
  transform: scaleX(0.6);
  transition:
    opacity var(--duration-fast) ease,
    transform var(--duration-fast) var(--ease-premium);
}

.nav-owner-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-text);
  white-space: nowrap;
  transition:
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    transform var(--duration-base) var(--ease-premium);
}

.nav-owner-link span[aria-hidden="true"],
.connect-btn span[aria-hidden="true"] {
  transition: transform var(--duration-base) var(--ease-premium);
}

/* Intro and capability */
.console-intro {
  position: relative;
  isolation: isolate;
  width: min(1200px, calc(100% - 48px));
  padding: clamp(68px, 7vw, 96px) 0 42px;
}

.console-intro::before {
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: -34px;
  left: 50%;
  width: 100vw;
  background-image:
    linear-gradient(rgba(10, 10, 11, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 10, 11, 0.045) 1px, transparent 1px);
  background-size: 32px 32px;
  content: "";
  pointer-events: none;
  transform: translateX(-50%);
  -webkit-mask-image: radial-gradient(ellipse 84% 92% at 48% 42%, #000 15%, transparent 80%);
  mask-image: radial-gradient(ellipse 84% 92% at 48% 42%, #000 15%, transparent 80%);
  /* Drafting geometry signals engineering discipline without reverting to notebook dots. */
}

.eyebrow {
  gap: 10px;
  margin-bottom: 15px;
  color: var(--color-hardware-text);
  font: 600 11px/1.35 var(--font-mono);
  letter-spacing: 0.08em;
}

.eyebrow span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-hardware);
}

.console-intro h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(50px, 5.8vw, 76px);
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

.console-intro h1 em {
  color: var(--color-hardware-text);
  word-spacing: 0.05em; /* Keeps the compact teal command legible at the narrowest viewport. */
}

.console-intro > div > p:not(.eyebrow) {
  max-width: 680px;
  color: var(--color-text-muted);
  font-size: 17px;
  line-height: 1.65;
}

.console-compat {
  display: flex;
  min-height: 54px;
  max-width: 320px;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  border: 1px solid var(--color-border-strong);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1px 2px rgba(10, 10, 11, 0.03);
  color: var(--color-text-muted);
  font: 500 11px/1.5 var(--font-mono);
}

.console-compat::before {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: #a1a1aa;
  content: "";
}

.console-compat.is-ready {
  border-color: rgba(16, 185, 129, 0.28);
  background: rgba(236, 253, 245, 0.92);
  color: var(--color-ready-strong);
}

.console-compat.is-ready::before {
  background: var(--color-ready);
  animation: console-ready-pulse 2.4s ease-out infinite;
}

.console-compat.is-limited {
  border-color: rgba(161, 98, 7, 0.25);
  background: #fffbeb;
  color: #854d0e;
}

.console-compat.is-limited::before { background: #ca8a04; }

@keyframes console-ready-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.28); }
  50% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
}

/* Main console shell */
.console-workspace {
  overflow: hidden;
  width: min(1200px, calc(100% - 48px));
  margin-bottom: 82px;
  border: 1px solid var(--color-border-strong);
  border-radius: 18px;
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

#ready { scroll-margin-top: 88px; }

.ready-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-subtle);
  list-style: none;
}

.ready-steps li {
  padding: 14px 18px;
  border-right: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font: 600 13px/1.4 var(--font-sans); /* Parent-facing instructions stay comfortably readable. */
}

.ready-steps li:last-child { border-right: 0; }

.ready-steps b {
  margin-right: 8px;
  color: var(--color-hardware-text);
  font: 600 11px/1 var(--font-mono);
}

.mode-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 410px;
  background: var(--color-surface);
}

.mode-library {
  padding: 30px;
  border-right: 1px solid var(--color-border);
}

.library-heading {
  align-items: end;
  gap: 34px;
  margin-bottom: 24px;
}

.library-heading h2,
.builder-intro h2,
.console-support h2 {
  font-size: clamp(30px, 3vw, 40px);
  font-weight: 720;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.library-heading > p {
  max-width: 285px;
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.6;
}

.fn-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  border: 0;
  background: transparent;
}

.fn-card {
  width: 100%;
  min-height: 172px;
  padding: 18px;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: 0 1px 2px rgba(10, 10, 11, 0.03);
  color: var(--color-text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  opacity: 1 !important;
  transform: none !important;
  transition:
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    box-shadow var(--duration-base) ease,
    transform var(--duration-base) var(--ease-premium) !important;
}

.fn-card-icon {
  display: none; /* Project names carry the hierarchy without decorative Unicode symbols. */
}

.fn-card-name {
  margin: 0 0 6px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.fn-card-desc {
  min-height: 40px;
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.5;
}

.fn-card.active {
  border-color: var(--color-text) !important;
  background: var(--color-text);
  box-shadow:
    inset 3px 0 0 var(--color-hardware),
    0 12px 28px rgba(10, 10, 11, 0.14);
}

.fn-card.active .fn-card-name { color: var(--color-surface); }
.fn-card.active .fn-card-desc { color: #d4d4d8; }

.fn-card:hover { background: var(--color-surface); }
.fn-card.active:hover { background: var(--color-text); } /* Touch sticky-hover never revives the retired warm palette. */

.fn-tag {
  margin-top: 11px;
  padding: 5px 8px;
  border-radius: 999px;
  font: 600 11px/1 var(--font-mono); /* Technical badges never fall below the 11px floor. */
}

.tag-fun,
.tag-sensor,
.tag-utility,
.tag-music {
  background: #ecfeff;
  color: #155e75;
}

.tag-desk,
.tag-alarm,
.tag-party,
.tag-sleep {
  background: #f4f4f5;
  color: var(--color-text-muted); /* A restrained two-tone taxonomy avoids the toy-kit rainbow effect. */
}

/* Selected mode and flashing controls */
.selected-mode { background: var(--color-surface-subtle); }

.mode-preview-section {
  padding: 27px 25px 22px;
  background: var(--color-surface);
}

.mode-preview-head { margin-bottom: 18px; }

.mode-preview-head h2 {
  font-size: 31px;
  font-weight: 720;
  letter-spacing: -0.03em;
}

.mode-outcome {
  padding: 15px;
  border: 1px solid rgba(8, 145, 178, 0.16);
  border-radius: 12px;
  background: var(--color-hardware-soft);
}

.mode-outcome span,
.mode-preview-item span {
  margin-bottom: 6px;
  color: var(--color-hardware-text);
  font: 600 11px/1.35 var(--font-mono);
  letter-spacing: 0.07em;
}

.mode-outcome p,
.mode-preview-item p,
.mode-details p {
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.55;
}

.mode-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
  background: transparent;
}

.mode-preview-item {
  min-height: 112px;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
}

.mode-details {
  margin-top: 10px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
}

.mode-details summary {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  color: var(--color-hardware-text);
  cursor: pointer;
  font: 600 11px/1.35 var(--font-mono);
  letter-spacing: 0.07em;
  list-style: none;
  text-transform: uppercase;
}

.mode-details summary::-webkit-details-marker { display: none; }

.mode-details summary::after {
  color: var(--color-hardware-text);
  content: "+";
  font: 600 16px/1 var(--font-mono);
}

.mode-details[open] summary::after { content: "−"; }
.mode-details p { padding-bottom: 13px; }

.flash-section {
  padding: 22px 25px 26px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-subtle);
}

.selected-indicator {
  gap: 8px;
  margin-bottom: 12px;
  color: var(--color-text);
  font: 600 11px/1.3 var(--font-mono);
}

.selected-dot {
  width: 8px;
  height: 8px;
  background: var(--color-hardware);
}

#selectedText { color: var(--color-text-muted); font-size: 11px; }

esp-web-install-button { display: block; }

.connect-btn {
  min-height: 50px;
  border: 1px solid var(--color-hardware-text);
  border-radius: var(--radius-control);
  background: var(--color-hardware-text);
  box-shadow: 0 1px 2px rgba(10, 10, 11, 0.12);
  color: var(--color-surface);
  font: 700 14px/1.2 var(--font-sans);
  transition:
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    box-shadow var(--duration-base) ease,
    transform var(--duration-base) var(--ease-premium);
}

.connect-btn:disabled {
  border-color: #d4d4d8;
  background: #e4e4e7;
  box-shadow: none;
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.flash-readiness {
  gap: 7px;
  margin: 14px 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.flash-readiness span { padding-left: 17px; }

.flash-readiness span::before {
  color: var(--color-hardware-text);
  font: 600 11px var(--font-mono);
}

.flash-note {
  margin-top: 12px;
  color: var(--color-text-muted);
  font: 500 11px/1.55 var(--font-mono);
}

/* Optional live serial monitor */
.serial-section {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-subtle);
}

.serial-section > summary {
  padding: 18px 28px;
  color: var(--color-text);
  font: 650 13px/1.4 var(--font-sans);
}

.serial-section > summary::marker { color: var(--color-hardware); }

.serial-pad { padding: 0 28px 28px; }

.serial-pad > p {
  margin-bottom: 14px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.serial-box {
  overflow: hidden;
  border: 1px solid #272a31;
  border-radius: var(--radius-card);
  background: #111318;
  box-shadow: 0 12px 28px rgba(10, 10, 11, 0.12);
}

.serial-head {
  padding: 11px 13px;
  border-bottom: 1px solid #272a31;
  background: #171a20;
}

.serial-label,
.serial-status {
  color: #a1a1aa;
  font: 600 11px/1.25 var(--font-mono);
  letter-spacing: 0.07em;
}

.serial-status.on { color: #6ee7b7; }
.serial-actions { gap: 8px; }

.sbtn {
  min-height: 44px;
  padding: 7px 9px;
  border: 1px solid #3f3f46;
  border-radius: 7px;
  background: #20232a;
  color: #e4e4e7;
  font: 600 11px var(--font-mono);
}

.sbtn.active {
  border-color: var(--color-ready);
  color: #6ee7b7;
}

.sbtn:disabled { color: #a1a1aa; cursor: not-allowed; } /* Disabled state stays readable without appearing active. */

.serial-log {
  height: 176px;
  padding: 13px 15px;
  background: #0d0f14;
  color: #d4d4d8;
  font: 500 11px/1.75 var(--font-mono);
}

.stime { color: #a1a1aa; } /* Timestamp contrast clears the small-text AA threshold. */
.telem .smsg { color: #a7f3d0; }
.serr .smsg { color: #fca5a5; }
.swarn .smsg { color: #fde68a; }

/* Feedback and support */
.console-support {
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(44px, 6vw, 72px);
  width: min(1200px, calc(100% - 48px));
  margin-bottom: 88px;
  padding: 0;
  border-top: 0;
  scroll-margin-top: 96px;
}

.console-support > div {
  align-self: center;
}

.console-support h2 { margin-bottom: 12px; }

.console-support > div > p:not(.eyebrow) {
  max-width: 520px;
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.65;
}

.console-support form {
  padding: 24px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-feature);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.console-support label {
  margin-bottom: 7px;
  color: var(--color-hardware-text);
  font: 600 11px/1.35 var(--font-mono);
  letter-spacing: 0.06em;
}

.console-support input,
.console-support select {
  min-height: 44px;
  padding: 11px 13px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-text);
  font: 400 13px var(--font-sans);
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.console-support input:focus,
.console-support select:focus {
  border-color: var(--color-hardware);
  outline: 3px solid var(--color-hardware); /* Solid teal remains visible against both field and canvas. */
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.14);
}

.form-row { gap: 10px; margin-top: 11px; }
.support-actions { gap: 16px; margin-top: 14px; }

.console-support button {
  min-height: 44px;
  margin-top: 0;
  padding: 10px 14px;
  border: 1px solid var(--color-text);
  border-radius: var(--radius-control);
  background: var(--color-text);
  color: var(--color-surface);
  font: 700 13px var(--font-sans);
  transition:
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    transform var(--duration-base) var(--ease-premium);
}

.console-support button:hover {
  background: var(--color-text); /* Neutralizes the legacy terracotta hover on touch browsers. */
}

.console-support button:disabled {
  border-color: #d4d4d8;
  background: #e4e4e7;
  color: var(--color-text-muted);
}

.support-actions a {
  color: var(--color-hardware-text);
  font: 650 13px var(--font-sans);
}

.sr-only,
.hp-field {
  position: absolute !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  border: 0 !important;
  margin: -1px !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

.form-privacy {
  margin-top: 12px;
  color: var(--color-text-muted);
  font: 400 12px/1.55 var(--font-sans);
}

#feature-request-status.ok { color: var(--color-ready-strong); }
#feature-request-status.error { color: var(--color-error); }

.console-footer {
  width: 100%;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.console-footer > div {
  display: flex;
  width: min(1200px, calc(100% - 48px));
  min-height: 86px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 auto;
  color: var(--color-text-muted);
  font: 500 11px/1.45 var(--font-mono);
}

.console-footer nav {
  display: flex;
  gap: 20px;
}

.console-footer span { color: var(--color-text); }
.console-footer a { color: var(--color-hardware-text); }

/* Low-amplitude interaction language */
@media (hover: hover) {
  .console-nav nav a:hover { color: var(--color-text); }
  .console-nav nav a:hover::after { opacity: 1; transform: scaleX(1); }
  .nav-owner-link:hover {
    border-color: var(--color-text);
    background: var(--color-text);
    color: var(--color-surface);
    transform: translateY(-1px);
  }
  .nav-owner-link:hover span[aria-hidden="true"],
  .connect-btn:hover span[aria-hidden="true"] { transform: translateX(3px); }
  .fn-card:hover {
    border-color: var(--color-border-strong) !important;
    background: var(--color-surface); /* Prevent the retired parchment hover from leaking through. */
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px) !important;
  }
  .fn-card.active:hover {
    border-color: var(--color-text) !important;
    background: var(--color-text); /* Selected hardware state remains authoritative on hover. */
  }
  .connect-btn:hover:not(:disabled) {
    border-color: var(--color-hardware-text);
    background: var(--color-hardware-text);
    box-shadow: 0 6px 18px rgba(14, 116, 144, 0.16);
    transform: translateY(-1px);
  }
  .console-support button:hover:not(:disabled) {
    border-color: #27272a;
    background: #27272a;
    transform: translateY(-1px);
  }
  .support-actions a:hover,
  .console-footer a:hover { color: #155e75; }
}

/* Responsive */
@media (min-width: 921px) {
  .console-intro {
    display: block;
    padding: 28px 0 20px;
  }

  .console-intro .eyebrow { margin-bottom: 10px; }

  .console-intro h1 {
    max-width: 1100px;
    margin-bottom: 14px;
    font-size: clamp(54px, 6vw, 84px); /* Exact FLUX hero scale preserves continuity between pages. */
  }

  .console-intro > div > p:not(.eyebrow) {
    max-width: min(620px, calc(100% - 356px));
    font-size: 16px;
    line-height: 1.5;
  }

  .console-compat {
    position: absolute;
    right: 0;
    bottom: 20px;
    width: 320px;
    min-height: 50px;
    padding: 11px 13px;
  }

  .ready-steps li { padding: 11px 16px; }

  .mode-library { padding: 20px; }

  .library-heading {
    gap: 24px;
    margin-bottom: 14px;
  }

  .library-heading h2 { font-size: 34px; }

  .fn-grid { gap: 10px; }

  .fn-card {
    min-height: 120px;
    padding: 12px 14px;
  }

  .fn-card-name { margin: 0 0 3px; }

  .fn-card-desc {
    min-height: 38px;
    line-height: 1.45;
  }

  .fn-tag {
    margin-top: 6px;
    padding: 3px 7px;
  }

  .mode-preview-section { padding: 20px 20px 18px; }
  .mode-preview-head { margin-bottom: 12px; }
  .mode-preview-head h2 { font-size: 28px; }
  .mode-outcome { padding: 12px; }

  .mode-preview-grid {
    gap: 8px;
    margin-top: 8px;
  }

  .mode-preview-item {
    min-height: 90px;
    padding: 11px;
  }

  .mode-details {
    margin-top: 8px;
    padding: 0 12px;
  }

  .mode-details p { padding-bottom: 10px; }

  .flash-section { padding: 18px 20px 20px; }
  .selected-indicator { margin-bottom: 9px; }
  .connect-btn { min-height: 48px; }

  .flash-readiness {
    gap: 5px;
    margin: 10px 0;
  }

  .flash-note { margin-top: 9px; }
  .serial-section > summary { padding: 15px 22px; }
}

@media (min-width: 1280px) and (max-height: 950px) {
  .console-intro { padding: 20px 0 12px; }
  .console-compat { bottom: 12px; }
}

@media (max-width: 920px) {
  .console-nav nav { display: none; }
  .nav-owner-link { margin-left: auto; }
  .console-intro {
    align-items: flex-start;
    flex-direction: column;
  }
  .console-compat { width: 100%; max-width: 620px; }
  .mode-workspace { grid-template-columns: 1fr; }
  .mode-library {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }
  .selected-mode { background: var(--color-surface); }
  .console-support { grid-template-columns: 1fr; gap: 28px; }
  .library-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .library-heading > p { max-width: 620px; }
}

@media (max-width: 720px) {
  .fn-grid { grid-template-columns: 1fr 1fr; }
  .fn-card:nth-child(9):last-child { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .nav-inner,
  .console-intro,
  .console-workspace,
  .console-support,
  .console-footer > div { width: calc(100% - 32px); }

  .console-nav,
  .nav-inner { min-height: 64px; }
  .console-nav nav { display: none; }
  .nav-logo { font-size: 14px; }
  .nav-logo small { display: none; }
  .nav-owner-link {
    min-height: 44px;
    margin-left: auto;
    padding: 8px 10px;
    font-size: 13px;
  }

  .console-intro { padding: 48px 0 30px; }
  .console-intro h1 { font-size: clamp(42px, 12vw, 56px); }
  .console-intro > div > p:not(.eyebrow) { font-size: 16px; }
  .console-compat { max-width: none; }
  .console-workspace { margin-bottom: 64px; border-radius: var(--radius-feature); }

  .ready-steps { grid-template-columns: 1fr; }
  .ready-steps li {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }
  .ready-steps li:last-child { border-bottom: 0; }

  .mode-library,
  .mode-preview-section,
  .flash-section { padding: 20px; }
  .library-heading h2 { font-size: 34px; }
  .fn-grid { gap: 10px; }
  .fn-card { min-height: 158px; padding: 15px; }
  .fn-card-desc { min-height: 54px; }
  .mode-preview-grid { grid-template-columns: 1fr; }
  .mode-preview-item { min-height: 0; }

  .serial-section > summary { padding: 17px 20px; }
  .serial-pad { padding: 0 20px 22px; }
  .serial-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .serial-actions { width: 100%; flex-wrap: wrap; }
  .serial-status { margin-right: auto; }
  .serial-log { height: 190px; }

  .console-support { margin-bottom: 64px; }
  .console-support form { padding: 19px; }
  .form-row { grid-template-columns: 1fr; }
  .support-actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .console-footer > div {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 22px 0;
  }
  .console-footer span { margin-right: 0; }
  .console-footer nav { flex-wrap: wrap; }
}

@media (max-width: 360px) {
  .console-intro h1 { font-size: 38px; } /* Balanced wrapping avoids a single-word orphan at 320px. */
  .fn-grid { grid-template-columns: 1fr; }
  .fn-card:nth-child(9):last-child { grid-column: auto; }
  .fn-card { min-height: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .console-compat.is-ready::before { animation: none !important; }
  .fn-card,
  .fn-card:hover,
  .connect-btn,
  .nav-owner-link,
  .console-support button { transform: none !important; }
  .fn-card,
  .fn-card:hover { transition: none !important; }
}