/* ─────────────────────────────────────────
   Identicron — Design System
   Palette: dusty plum / champagne gold
   Type: Cormorant Garamond + Outfit
────────────────────────────────────────── */

:root {
  /* Plum-mist scale */
  --mist-lightest: #f6f2fb;
  --mist-light:    #ede7f5;
  --mist:          #e0d8ec;
  --mist-md:       #cac0da;
  --mist-dk:       #b4a8c8;

  /* Ink scale */
  --plum:          #1c1228;
  --plum-soft:     #2e1c40;
  --muted:         #5a4870;
  --muted-light:   #7a6490;

  /* Champagne / warm gold accent */
  --champ:         #c4a060;
  --champ-light:   #ddb87a;
  --champ-deep:    #886830;
  --champ-ghost:   rgba(196, 160, 96, 0.09);
  --champ-ring:    rgba(196, 160, 96, 0.22);

  /* Surfaces */
  --card-bg:       rgba(248, 244, 253, 0.88);
  --card-border:   rgba(140, 108, 172, 0.13);
  --input-bg:      rgba(255, 252, 255, 0.85);

  /* Shadows */
  --shadow-card:
    0 1px 2px  rgba(28, 18, 40, 0.05),
    0 8px 24px rgba(28, 18, 40, 0.09),
    0 32px 56px rgba(28, 18, 40, 0.06);
  --shadow-lift:
    0 4px 16px rgba(196, 160, 96, 0.28),
    0 12px 36px rgba(28, 18, 40, 0.16);

  /* Geometry */
  --r-sm:   10px;
  --r-md:   18px;
  --r-lg:   26px;
  --r-pill: 999px;
}

/* ── Reset ──────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ── Body ───────────────────────────────── */
body {
  font-family: "Outfit", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  color: var(--plum);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(ellipse 70% 45% at 8%   0%,   rgba(248, 242, 255, 0.95), transparent),
    radial-gradient(ellipse 55% 38% at 94%  18%,   rgba(210, 192, 235, 0.30), transparent),
    radial-gradient(ellipse 80% 50% at 50%  110%,  rgba(190, 172, 218, 0.22), transparent),
    linear-gradient(162deg, var(--mist-lightest) 0%, var(--mist-light) 55%, var(--mist) 100%);
}

/* ── Header ─────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 242, 251, 0.78);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border-bottom: 1px solid var(--card-border);
  animation: fade-down 0.55s ease both;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 62px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--plum);
}

.brand-hex {
  color: var(--champ);
  flex-shrink: 0;
}

.brand-name {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1;
}

.header-sep {
  display: block;
  width: 1px;
  height: 1.1rem;
  background: var(--mist-md);
}

.brand-tagline {
  font-size: 0.78rem;
  color: var(--muted-light);
  font-weight: 400;
  letter-spacing: 0.03em;
}

/* ── Shell / Layout ─────────────────────── */
.shell {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding: 1.75rem 1.25rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 900px) {
  .shell {
    grid-template-columns: minmax(340px, 420px) 1fr;
    align-items: start;
    gap: 2rem;
    padding: 2.75rem 2rem;
  }
}

/* ── Cards ───────────────────────────────── */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid var(--card-border);
  border-radius: var(--r-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.controls-card { animation: fade-up 0.65s 0.10s ease both; }
.preview       { animation: fade-up 0.65s 0.22s ease both; }

/* ── Card header ─────────────────────────── */
.card-header {
  padding-bottom: 1.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--card-border);
}

.eyebrow {
  font-size: 0.70rem;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--champ-deep);
  margin-bottom: 0.55rem;
}

h1 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 0.93;
  letter-spacing: -0.025em;
  color: var(--plum);
}

h1 em {
  font-style: italic;
  color: var(--champ);
}

.lede {
  font-size: 0.91rem;
  line-height: 1.70;
  color: var(--muted);
  font-weight: 400;
  margin-top: 0.85rem;
}

/* ── Account banner ──────────────────────── */
.account-banner {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1rem;
  margin-bottom: 1.5rem;
  background: var(--champ-ghost);
  border: 1px solid rgba(196, 160, 96, 0.18);
  border-radius: var(--r-md);
}

.account-avatar {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--champ-light), var(--champ-deep));
  color: #fff;
  display: grid;
  place-items: center;
  font-family: "Cormorant Garamond", serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0;
  box-shadow: 0 2px 10px rgba(196, 160, 96, 0.30);
}

.account-info {
  flex: 1;
  min-width: 0;
}

.account-info .eyebrow {
  margin-bottom: 0.15rem;
}

.account-name {
  font-size: 0.90rem;
  font-weight: 600;
  color: var(--plum-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.account-email {
  font-size: 0.80rem;
  color: var(--muted);
  margin-top: 0.1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.logout-link {
  flex-shrink: 0;
  font: inherit;
  font-size: 0.79rem;
  font-weight: 600;
  color: var(--champ-deep);
  text-decoration: none;
  padding: 0.38rem 0.8rem;
  border: 1px solid rgba(196, 160, 96, 0.28);
  border-radius: var(--r-pill);
  white-space: nowrap;
  transition: background 0.18s, border-color 0.18s;
}

.logout-link:hover {
  background: rgba(196, 160, 96, 0.10);
  border-color: rgba(196, 160, 96, 0.50);
}

/* ── Form ────────────────────────────────── */
#identicon-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
}

label {
  font-size: 0.79rem;
  font-weight: 600;
  color: var(--plum-soft);
  letter-spacing: 0.01em;
}

.select-wrap {
  position: relative;
}

.select-wrap select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--input-bg);
  border: 1.5px solid var(--card-border);
  border-radius: var(--r-sm);
  padding: 0.78rem 2.6rem 0.78rem 1rem;
  font: inherit;
  font-size: 0.91rem;
  font-weight: 500;
  color: var(--plum);
  cursor: pointer;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.select-wrap select:hover {
  border-color: var(--mist-dk);
}

.select-wrap select:focus {
  outline: none;
  border-color: var(--champ);
  box-shadow: 0 0 0 3px var(--champ-ring);
}

.select-arrow {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--muted-light);
}

/* Generate button */
.generate-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  margin-top: 0.5rem;
  border: 0;
  border-radius: var(--r-sm);
  background: linear-gradient(130deg, var(--plum-soft) 0%, var(--plum) 100%);
  color: var(--mist-lightest);
  padding: 0.9rem 1.5rem;
  font: inherit;
  font-size: 0.93rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(28, 18, 40, 0.28);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.generate-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
  filter: brightness(1.12);
}

.generate-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(28, 18, 40, 0.20);
}

.btn-arrow {
  transition: transform 0.2s ease;
}

.generate-btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* ── Download buttons ────────────────────── */
.actions {
  display: flex;
  gap: 0.55rem;
  margin-top: 1.1rem;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  padding: 0.58rem 1.05rem;
  border: 1.5px solid rgba(140, 108, 172, 0.22);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.50);
  color: var(--plum-soft);
  text-decoration: none;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: background 0.18s, border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}

.download-btn:hover {
  background: rgba(196, 160, 96, 0.08);
  border-color: rgba(196, 160, 96, 0.40);
  color: var(--champ-deep);
  transform: translateY(-1px);
  box-shadow: 0 3px 12px rgba(28, 18, 40, 0.10);
}

/* ── Auth panel ──────────────────────────── */
.auth-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid var(--card-border);
  border-radius: var(--r-md);
}

.auth-panel-text {
  font-size: 0.90rem;
  line-height: 1.68;
  color: var(--muted);
}

.auth-button {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.82rem 1.5rem;
  background: #fff;
  border: 1.5px solid var(--card-border);
  border-radius: var(--r-sm);
  color: var(--plum-soft);
  text-decoration: none;
  font: inherit;
  font-size: 0.91rem;
  font-weight: 600;
  box-shadow:
    0 1px 3px rgba(28, 18, 40, 0.08),
    0 4px 12px rgba(28, 18, 40, 0.06);
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}

.auth-button:hover {
  box-shadow:
    0 4px 16px rgba(28, 18, 40, 0.12),
    0 8px 28px rgba(28, 18, 40, 0.08);
  transform: translateY(-1px);
  border-color: rgba(196, 160, 96, 0.30);
}

.google-icon { flex-shrink: 0; }

/* ── Config notice ───────────────────────── */
.config-notice {
  padding: 1.1rem 1.25rem;
  background: rgba(196, 160, 96, 0.06);
  border: 1px solid rgba(196, 160, 96, 0.20);
  border-radius: var(--r-md);
}

.config-notice p {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--muted);
}

code {
  background: rgba(196, 160, 96, 0.12);
  padding: 0.12em 0.4em;
  border-radius: 5px;
  font-family: "SF Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.83em;
  color: var(--champ-deep);
}

/* ── Error ───────────────────────────────── */
.error {
  font-size: 0.83rem;
  color: #8f2020;
  min-height: 1.2rem;
  margin-top: 0.45rem;
}

/* ── Preview card ────────────────────────── */
.preview {
  display: flex;
  flex-direction: column;
}

.preview-header {
  margin-bottom: 1.5rem;
}

.preview-header .eyebrow {
  margin-bottom: 0.4rem;
}

.preview-desc {
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.65;
}

.preview-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 340px;
}

/* Dot-grid showcase frame */
.preview-frame {
  position: relative;
  width: min(460px, 100%);
  padding: 1.75rem;
  border-radius: var(--r-md);
  background:
    radial-gradient(circle, rgba(140, 108, 172, 0.13) 1.2px, transparent 1.2px),
    linear-gradient(145deg, rgba(248, 244, 254, 0.72), rgba(232, 224, 245, 0.78));
  background-size: 22px 22px, 100% 100%;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.88),
    0 4px 24px rgba(28, 18, 40, 0.10);
}

/* Loading shimmer overlay */
.preview-shimmer {
  position: absolute;
  inset: 1.75rem;
  border-radius: var(--r-md);
  background: linear-gradient(
    90deg,
    rgba(204, 192, 220, 0.28) 25%,
    rgba(228, 218, 242, 0.55) 50%,
    rgba(204, 192, 220, 0.28) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s;
}

.preview-frame.loading .preview-shimmer {
  opacity: 1;
}

#preview {
  display: block;
  width: 100%;
  border-radius: var(--r-md);
  transition: opacity 0.3s ease;
  position: relative;
  z-index: 1;
}

#preview.fading {
  opacity: 0;
}

/* Placeholder state */
.preview-placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 340px;
  border-radius: var(--r-md);
  border: 1.5px dashed rgba(140, 108, 172, 0.25);
  background:
    radial-gradient(circle, rgba(140, 108, 172, 0.07) 1.2px, transparent 1.2px),
    rgba(248, 244, 253, 0.45);
  background-size: 22px 22px, 100% 100%;
}

.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.placeholder-glyph {
  color: var(--mist-dk);
}

.preview-placeholder p {
  font-size: 0.86rem;
  color: var(--muted-light);
  line-height: 1.65;
  text-align: center;
}

/* ── Footer ──────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 1.1rem 2rem;
  animation: fade-up 0.65s 0.38s ease both;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.feature-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.55rem;
}

.chip {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted-light);
  letter-spacing: 0.03em;
}

.chip-sep {
  color: var(--mist-dk);
  font-size: 1rem;
  line-height: 1;
  user-select: none;
}

/* ── Keyframes ───────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@keyframes fade-down {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0);     }
}

@keyframes shimmer {
  0%   { background-position:  200% 0; }
  100% { background-position: -200% 0; }
}