/* ═══════════════════════════════════════════════════
   CoCo — auth.css
   Login, Signup, Onboarding, ID Card pages
═══════════════════════════════════════════════════ */

/* ── Auth page wrapper ── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-auth-bg);
  padding: var(--sp-4);
  overflow: hidden;
  position: relative;
}

/* ── Animated orbs ── */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  animation: blobFloat linear infinite;
  pointer-events: none;
  z-index: 0;
}
.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,111,255,0.2), transparent 70%);
  top: -200px; left: -150px;
  animation-duration: 18s;
}
.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(79,70,229,0.18), transparent 70%);
  bottom: -180px; right: -120px;
  animation-duration: 22s;
  animation-delay: -8s;
}
.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(167,139,250,0.15), transparent 70%);
  top: 40%; left: 55%;
  animation-duration: 26s;
  animation-delay: -14s;
}

/* ── Auth card ── */
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  background: linear-gradient(145deg, rgba(28,28,50,0.85), rgba(15,15,26,0.92));
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-2xl);
  padding: var(--sp-8) var(--sp-8);
  box-shadow: var(--sh-xl), 0 0 0 1px rgba(255,255,255,0.04) inset;
  animation: scaleIn 0.4s cubic-bezier(0.175,0.885,0.32,1.275) forwards;
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

/* ── Logo ── */
.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-bottom: -6px;
}
.auth-logo-mark {
  width: 40px; height: 40px;
  background: var(--grad-brand);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--sh-accent);
  flex-shrink: 0;
}
.auth-logo-text {
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

/* ── Auth Tabs ── */
.auth-tabs {
  display: flex;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 4px;
  position: relative;
  gap: 0;
}
.tab-btn {
  flex: 1;
  padding: 9px 16px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--t-3);
  border-radius: 12px;
  cursor: pointer;
  border: none;
  background: none;
  transition: color var(--tr-2);
  position: relative;
  z-index: 1;
  letter-spacing: 0.01em;
}
.tab-btn.active { color: var(--t-1); }
.tab-slider {
  position: absolute;
  top: 4px; bottom: 4px;
  left: 4px;
  width: calc(50% - 4px);
  background: rgba(124,111,255,0.18);
  border: 1px solid rgba(124,111,255,0.3);
  border-radius: 12px;
  transition: transform var(--tr-2);
  pointer-events: none;
}
.tab-slider.right { transform: translateX(calc(100% + 0px)); }

/* ── Auth subtitle ── */
.auth-subtitle {
  font-size: 0.875rem;
  color: var(--t-3);
  text-align: center;
  font-weight: 500;
  line-height: 1.6;
}

/* ── Google Button ── */
.google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px 20px;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid rgba(255,255,255,0.12);
  border-radius: var(--r-md);
  color: var(--t-1);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--tr-2);
  letter-spacing: 0.01em;
}
.google-btn:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-1px);
  box-shadow: var(--sh-sm);
}
.google-btn:active { transform: translateY(0); }

/* ── Divider ── */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--t-4);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--c-border-2);
}

/* ── Auth footer ── */
.auth-footer {
  text-align: center;
  font-size: 0.84rem;
  color: var(--t-3);
  font-weight: 500;
}
.auth-footer a {
  color: var(--t-link);
  font-weight: 600;
  cursor: pointer;
}
.auth-footer a:hover { text-decoration: underline; }

/* ── Auth form (hidden/shown) ── */
.auth-form { display: none; flex-direction: column; gap: var(--sp-4); }
.auth-form.active { display: flex; animation: fadeUp 0.3s ease; }

/* ─────────────────────────────────
   Onboarding Page
───────────────────────────────── */
.onboarding-card {
  max-width: 460px;
}

.onboard-step-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: -8px;
}
.onboard-dot {
  width: 28px; height: 4px;
  border-radius: 99px;
  background: var(--c-border-2);
  transition: background var(--tr-2), width var(--tr-2);
}
.onboard-dot.active {
  background: var(--c-accent);
  width: 36px;
}
.onboard-dot.done { background: var(--c-online); }

.onboard-title {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  letter-spacing: -0.02em;
  color: var(--t-1);
}

/* ── Avatar picker ── */
.avatar-picker-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.avatar-ring {
  width: 96px; height: 96px;
  border-radius: 50%;
  border: 2.5px dashed var(--c-border-2);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  position: relative;
  background: rgba(255,255,255,0.03);
  transition: border-color var(--tr-2), background var(--tr-2);
  overflow: visible;
}
.avatar-ring:hover {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
}
.avatar-inner {
  width: 88px; height: 88px;
  border-radius: 50%;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-bg-3);
}
.avatar-inner img {
  width: 100%; height: 100%; object-fit: cover;
}
.avatar-plus {
  position: absolute;
  bottom: 0; right: 0;
  width: 28px; height: 28px;
  background: var(--grad-btn);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5);
  color: white;
}
.avatar-hint {
  font-size: 0.78rem;
  color: var(--t-3);
  font-weight: 500;
}

/* ── Username input with @ prefix ── */
.username-wrap { position: relative; }
.username-at {
  position: absolute;
  left: 14px;
  color: var(--t-3);
  font-weight: 600;
  font-size: 0.95rem;
  pointer-events: none;
  z-index: 1;
}
.username-wrap input { padding-left: 28px !important; }

/* ─────────────────────────────────
   ID Card Page
───────────────────────────────── */
.idcard-card {
  max-width: 460px;
  text-align: center;
}

.idcard-celebrate {
  font-size: 3rem;
  text-align: center;
  animation: fadeUp 0.5s 0.2s both;
  line-height: 1;
}

.id-card-display {
  background: linear-gradient(145deg, rgba(124,111,255,0.15), rgba(79,70,229,0.08));
  border: 1px solid rgba(124,111,255,0.3);
  border-radius: var(--r-xl);
  padding: var(--sp-5);
  position: relative;
  overflow: hidden;
  animation: fadeUp 0.5s 0.3s both;
  box-shadow: var(--sh-md), 0 0 40px rgba(124,111,255,0.1) inset;
}
.icd-shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
  background-size: 200% 100%;
  animation: shimmer 3s infinite;
  pointer-events: none;
}

.icd-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
}
.icd-logo-row {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.85rem; font-weight: 700;
  color: var(--c-accent-2);
}
.icd-logo-mark {
  width: 24px; height: 24px;
  background: var(--grad-brand);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
}
.icd-badge {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--c-accent-soft);
  border: 1px solid rgba(124,111,255,0.3);
  color: var(--c-accent-2);
  padding: 3px 10px;
  border-radius: var(--r-full);
}

.icd-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.icd-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--grad-brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
  overflow: hidden;
  border: 3px solid rgba(255,255,255,0.15);
  box-shadow: 0 0 0 6px rgba(124,111,255,0.15);
}
.icd-avatar img { width: 100%; height: 100%; object-fit: cover; }
.icd-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--t-1);
  letter-spacing: -0.01em;
}
.icd-username {
  font-size: 0.85rem;
  color: var(--c-accent-2);
  font-weight: 600;
}

.icd-id-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--c-border-2);
  border-radius: var(--r-md);
  padding: 12px 16px;
}
.icd-id-info { text-align: left; }
.icd-id-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--t-3);
  margin-bottom: 2px;
}
.icd-id-value {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--t-1);
  font-variant-numeric: tabular-nums;
}
.icd-copy-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  background: var(--grad-btn);
  color: white;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--r-sm);
  border: none; cursor: pointer;
  transition: all var(--tr-2);
  box-shadow: var(--sh-btn);
}
.icd-copy-btn:hover { transform: translateY(-1px); box-shadow: var(--sh-accent); }
.icd-copy-btn.copied { background: linear-gradient(135deg,#22c55e,#16a34a); }

/* ── Confetti ── */
.confetti-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 3px;
  opacity: 0;
  animation: confettiFall linear forwards;
}