/* Signal Studio — production skin for QR PWA */
:root {
  --ink: #0B1F33;
  --ink-soft: #243B53;
  --signal: #1B6BFF;
  --signal-deep: #0F4FD1;
  --chalk: #F2F5F9;
  --paper: #FFFFFF;
  --mist: #D7E0EC;
  --muted: #5A6B7D;
  --ok: #12B886;
  --danger: #E03131;
  --shadow: 0 18px 50px rgba(11, 31, 51, 0.12);
  --radius: 18px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --font-display: "Syne", sans-serif;
  --font-ui: "DM Sans", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

html { height: 100%; }

body.studio-skin {
  margin: 0 !important;
  padding: 0 !important;
  font-family: var(--font-ui) !important;
  color: var(--ink) !important;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(27, 107, 255, 0.16), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(18, 184, 134, 0.10), transparent 50%),
    linear-gradient(180deg, #EAF0F7 0%, var(--chalk) 40%, #E7EDF5 100%) !important;
  background-attachment: fixed !important;
  min-height: 100%;
}

body.studio-skin::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  z-index: 0;
  background-image:
    linear-gradient(var(--ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 75%);
}

body.studio-skin > *:not(script) {
  position: relative;
  z-index: 1;
}

/* Hide legacy floating install chip; use app-bar Install */
body.studio-skin #installButton {
  display: none !important;
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(16px + var(--safe-top)) 16px calc(100px + var(--safe-bottom));
}

/* —— App bar —— */
.app-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 4.5vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin: 0;
}

.brand-sub {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

.brand-sub a {
  color: var(--signal);
  text-decoration: none;
  font-weight: 600;
}

.bar-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  align-items: center;
}

.ghost-btn,
.clear-data-button,
.top-install-btn {
  font-family: var(--font-ui) !important;
  border: 1.5px solid var(--mist) !important;
  background: rgba(255, 255, 255, 0.72) !important;
  backdrop-filter: blur(8px);
  color: var(--ink-soft) !important;
  border-radius: 999px !important;
  padding: 10px 14px !important;
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  cursor: pointer;
  margin: 0 !important;
  width: auto !important;
  box-shadow: none !important;
  white-space: nowrap;
}

.ghost-btn:hover,
.clear-data-button:hover,
.top-install-btn:hover {
  border-color: var(--signal) !important;
  color: var(--signal) !important;
  background: #fff !important;
  transform: none !important;
}

.top-install-btn {
  background: linear-gradient(180deg, var(--signal), var(--signal-deep)) !important;
  border-color: transparent !important;
  color: #fff !important;
}

.top-install-btn:hover {
  color: #fff !important;
  border-color: transparent !important;
}

/* —— Mode tabs —— */
.mode-tabs {
  display: none;
  gap: 8px;
  margin: 22px 0 20px;
}

.mode-tab {
  font-family: var(--font-ui);
  border: 0;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 16px;
  border-radius: 12px;
  cursor: pointer;
}

.mode-tab[aria-selected="true"] {
  background: var(--ink);
  color: #fff;
}

/* —— Studio split —— */
.studio {
  display: grid;
  gap: 16px;
  align-items: start;
}

.composer,
.stage {
  background: var(--paper);
  border: 1px solid rgba(11, 31, 51, 0.06);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.composer {
  padding: 8px 8px 16px;
  min-width: 0;
}

.stage {
  padding: 22px;
  position: sticky;
  top: 16px;
}

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

.stage-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ink);
}

.stage-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.stage-status.live { color: var(--ok); }

.stage-slot { display: none; }
.stage-slot.active { display: block; }

.stage .qrcode-container {
  display: grid !important;
  place-items: center;
  min-height: 260px;
  margin: 0 !important;
  padding: 20px !important;
  border-radius: 16px !important;
  background:
    radial-gradient(circle at 50% 40%, rgba(27, 107, 255, 0.08), transparent 60%),
    #F7F9FC !important;
  border: 1px dashed var(--mist) !important;
  box-shadow: none !important;
}

.stage .qrcode-container:empty::after {
  content: "Your QR appears here";
  font-family: var(--font-display);
  color: var(--muted);
  font-size: 1rem;
}

.stage .qrcode-container img,
.stage .qrcode-container canvas {
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(11, 31, 51, 0.12);
}

.stage .download-buttons {
  display: flex !important;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 14px !important;
}

.stage .download-buttons[style*="display: none"] {
  display: none !important;
}

.download-btn {
  font-family: var(--font-ui) !important;
  background: var(--ink) !important;
  color: #fff !important;
  border: 0 !important;
  border-radius: 10px !important;
  padding: 10px 12px !important;
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  margin: 0 !important;
  width: auto !important;
}

/* —— Form sections as mode panels —— */
body.studio-skin .form-container {
  display: block !important;
  gap: 0 !important;
}

body.studio-skin .form-section {
  display: none;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  margin: 0 !important;
  padding: 14px 16px 8px !important;
  border-radius: 0 !important;
}

body.studio-skin .form-section.is-active {
  display: block;
  animation: studioFade 0.28s ease;
}

@keyframes studioFade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  body.studio-skin .form-section.is-active { animation: none; }
}

body.studio-skin .form-section h2 {
  font-family: var(--font-display) !important;
  font-size: 1.45rem !important;
  font-weight: 700 !important;
  color: var(--ink) !important;
  background: transparent !important;
  border: 0 !important;
  padding: 0 0 4px !important;
  margin: 0 0 4px !important;
  cursor: default !important;
  pointer-events: none;
}

body.studio-skin .form-section h2::after {
  display: none !important;
}

body.studio-skin .form-section .form-content {
  display: block !important;
  max-height: none !important;
  opacity: 1 !important;
  padding: 0 !important;
}

body.studio-skin .section-caption {
  color: var(--muted) !important;
  margin: 0 0 18px !important;
  font-size: 0.95rem !important;
}

body.studio-skin .form-group label,
body.studio-skin label {
  font-family: var(--font-ui) !important;
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  color: var(--ink-soft) !important;
}

body.studio-skin input[type="text"],
body.studio-skin input[type="tel"],
body.studio-skin input[type="email"],
body.studio-skin input[type="url"],
body.studio-skin input[type="datetime-local"],
body.studio-skin input[type="file"],
body.studio-skin textarea,
body.studio-skin select {
  border: 1.5px solid var(--mist) !important;
  border-radius: 12px !important;
  padding: 12px 14px !important;
  font: 500 1rem/1.3 var(--font-ui) !important;
  background: #FBFCFE !important;
  color: var(--ink) !important;
}

body.studio-skin input:focus,
body.studio-skin textarea:focus,
body.studio-skin select:focus {
  outline: none !important;
  border-color: var(--signal) !important;
  box-shadow: 0 0 0 4px rgba(27, 107, 255, 0.15) !important;
}

body.studio-skin button[type="submit"],
body.studio-skin #generateBusinessCard {
  font-family: var(--font-ui) !important;
  border: 0 !important;
  border-radius: 14px !important;
  padding: 14px 18px !important;
  font-weight: 700 !important;
  font-size: 0.95rem !important;
  cursor: pointer;
  width: auto !important;
  margin-top: 12px !important;
  margin-right: 8px !important;
}

body.studio-skin button[type="submit"] {
  background: linear-gradient(180deg, var(--signal), var(--signal-deep)) !important;
  color: #fff !important;
  box-shadow: 0 10px 24px rgba(27, 107, 255, 0.28) !important;
}

body.studio-skin #generateBusinessCard {
  background: var(--chalk) !important;
  color: var(--ink) !important;
  border: 1.5px solid var(--mist) !important;
}

body.studio-skin .add-btn {
  background: var(--ok) !important;
}

/* Composer should not duplicate QR/download (moved to stage) */
.composer .qrcode-container,
.composer .download-buttons,
.composer #businessCardContainer,
.composer #businessCardDownloadButtons {
  display: none !important;
}

.stage #businessCardContainer {
  margin-top: 18px;
}

.stage #businessCardContainer h3,
.stage #businessCardContainer h4 {
  font-family: var(--font-display);
  color: var(--ink);
}

/* —— Bottom nav —— */
.bottom-nav {
  display: none;
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(12px + var(--safe-bottom));
  width: min(420px, calc(100% - 24px));
  background: rgba(11, 31, 51, 0.94);
  backdrop-filter: blur(14px);
  border-radius: 20px;
  grid-template-columns: repeat(3, 1fr);
  padding: 8px;
  z-index: 50;
  box-shadow: 0 16px 40px rgba(11, 31, 51, 0.35);
}

.nav-item {
  border: 0;
  background: transparent;
  color: #9AA8B8;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.78rem;
  padding: 12px 8px;
  border-radius: 14px;
  cursor: pointer;
  display: grid;
  gap: 4px;
  justify-items: center;
}

.nav-item span.icon { font-size: 1.05rem; line-height: 1; }
.nav-item[aria-selected="true"] {
  background: rgba(27, 107, 255, 0.25);
  color: #fff;
}

/* API + footer restyle (no purple) */
.api-band {
  margin: 40px 16px 0;
  padding: 36px 20px;
  border-radius: 20px;
  background: linear-gradient(145deg, var(--ink) 0%, #143352 55%, #0F4FD1 140%);
  color: #fff;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.api-band a.api-chip {
  display: inline-block;
  background: #fff;
  color: var(--ink);
  padding: 10px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
}

body.studio-skin footer {
  background: transparent !important;
  border-top: 1px solid var(--mist) !important;
  color: var(--muted) !important;
  max-width: 1200px;
  margin: 24px auto 0 !important;
}

body.studio-skin footer a {
  color: var(--signal) !important;
}

body.studio-skin #version {
  color: var(--signal) !important;
}

/* Legacy container reset */
body.studio-skin .container {
  max-width: none !important;
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}

body.studio-skin .header {
  display: none !important; /* replaced by .app-bar */
}

@media (min-width: 900px) {
  body.studio-skin .form-section.is-active > h2 {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}

@media (max-width: 899px) {
  .bottom-nav { display: grid; }
  .stage { position: static; order: 2; }
  .studio { display: flex; flex-direction: column; }
}

/* Hard overrides vs inline accordion CSS */
body.studio-skin .form-section[data-mode]:not(.is-active) {
  display: none !important;
}
body.studio-skin .form-section[data-mode].is-active {
  display: block !important;
}
body.studio-skin .form-section[data-mode].is-active .form-content {
  display: block !important;
  max-height: none !important;
  opacity: 1 !important;
  overflow: visible !important;
}

/* —— Logo drop / paste zone —— */
.logo-drop-zone {
  position: relative;
  border: 1.5px dashed var(--mist);
  border-radius: 14px;
  background: #FBFCFE;
  min-height: 110px;
  padding: 16px;
  display: grid;
  place-items: center;
  gap: 10px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  outline: none;
}

.logo-drop-zone:hover,
.logo-drop-zone:focus-visible {
  border-color: var(--signal);
  box-shadow: 0 0 0 4px rgba(27, 107, 255, 0.12);
}

.logo-drop-zone.is-dragover {
  border-color: var(--signal);
  background: rgba(27, 107, 255, 0.06);
  box-shadow: 0 0 0 4px rgba(27, 107, 255, 0.18);
}

.logo-drop-zone.has-logo {
  border-style: solid;
  border-color: var(--ok);
}

.logo-file-input {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  border: 0 !important;
}

.logo-drop-ui {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
  pointer-events: none;
}

.logo-drop-ui strong {
  color: var(--ink-soft);
  font-weight: 700;
}

.logo-upload-preview {
  max-width: 160px;
  max-height: 80px;
  border-radius: 8px;
  border: 1px solid var(--mist);
  background: #fff;
  object-fit: contain;
}

.logo-clear-btn {
  font-family: var(--font-ui) !important;
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  border: 1.5px solid var(--mist) !important;
  background: #fff !important;
  color: var(--ink-soft) !important;
  border-radius: 999px !important;
  padding: 6px 12px !important;
  margin: 0 !important;
  width: auto !important;
  cursor: pointer;
}

.logo-clear-btn:hover {
  border-color: var(--danger) !important;
  color: var(--danger) !important;
}

.logo-hint {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--muted);
}