/* ==========================================================================
   Karakoram — Auth (login / signup) split layout
   ========================================================================== */

.auth {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
}

/* ---- Left: brand visual --------------------------------------------------- */
.auth-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-12);
  overflow: hidden;
  border-right: 1px solid var(--border);
  background:
    radial-gradient(circle at 30% 20%, rgba(0, 200, 255, 0.10), transparent 55%),
    var(--bg-secondary);
}
.auth-visual .logo { position: relative; z-index: 2; font-size: var(--text-sm); }

.auth-face-wrap {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-face-wrap::before {
  content: "";
  position: absolute;
  width: 340px; height: 260px;
  background: radial-gradient(ellipse at center, rgba(0, 200, 255, 0.16), transparent 65%);
  filter: blur(6px);
}
.auth-face { width: min(400px, 70%); height: 280px; position: relative; }

.auth-quote { position: relative; z-index: 2; max-width: 420px; }
.auth-quote .q {
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin: 0 0 var(--space-6);
}
.auth-quote .q .accent { color: var(--accent); }

.testimonial {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
}
.testimonial .avatar {
  width: 40px; height: 40px; flex: none;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(0, 200, 255, 0.12);
  color: var(--accent);
  font-weight: 700;
}
.testimonial .t-body p { margin: 0 0 var(--space-2); font-size: var(--text-sm); line-height: 1.5; }
.testimonial .t-meta { font-size: var(--text-xs); color: var(--text-secondary); }
.testimonial .stars { color: var(--warning); letter-spacing: 2px; font-size: var(--text-xs); }

/* ---- Right: form panel ---------------------------------------------------- */
.auth-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
}
.auth-card { width: 100%; max-width: 400px; }
.auth-card .logo { display: none; margin-bottom: var(--space-8); }

.auth-head { margin-bottom: var(--space-8); }
.auth-head h1 {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-2);
}
.auth-head p { margin: 0; color: var(--text-secondary); font-size: var(--text-base); }

/* ---- Fields --------------------------------------------------------------- */
.field { margin-bottom: var(--space-5); }
.field > label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  letter-spacing: 0.01em;
}
.control { position: relative; }
.field input {
  width: 100%;
  height: 48px;
  padding: 0 var(--space-4);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--text-base);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}
.field input::placeholder { color: var(--text-dim); }
.field input:focus {
  border-color: var(--accent);
  background: rgba(0, 200, 255, 0.03);
  box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.12);
}
.control .peek {
  position: absolute;
  right: 6px; top: 50%;
  transform: translateY(-50%);
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: none; background: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}
.control:has(.peek) input { padding-right: 46px; }
.control .peek:hover { color: var(--accent); }
.control .peek [data-lucide] { font-size: 18px; }

/* validity states */
.field.valid input { border-color: rgba(68, 255, 136, 0.4); }
.field.invalid input { border-color: var(--danger); }
.field-msg {
  min-height: 16px;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--danger);
}

/* password strength */
.strength { margin-top: var(--space-3); }
.strength-bars { display: flex; gap: 4px; }
.strength-bars span {
  flex: 1; height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.08);
  transition: background var(--transition-base);
}
.strength[data-level="1"] .strength-bars span:nth-child(-n+1),
.strength[data-level="2"] .strength-bars span:nth-child(-n+2),
.strength[data-level="3"] .strength-bars span:nth-child(-n+3),
.strength[data-level="4"] .strength-bars span:nth-child(-n+4) { background: var(--str-color, var(--accent)); }
.strength[data-level="1"] { --str-color: var(--danger); }
.strength[data-level="2"] { --str-color: var(--warning); }
.strength[data-level="3"] { --str-color: var(--accent); }
.strength[data-level="4"] { --str-color: var(--success); }
.strength-label {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.auth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}
.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  cursor: pointer;
}
.checkbox-row input { width: 16px; height: 16px; accent-color: var(--accent); }
.muted-link { font-size: var(--text-sm); color: var(--text-secondary); }
.muted-link:hover { color: var(--accent); }

/* banners */
.banner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}
.banner[hidden] { display: none; }
.banner-error { background: rgba(255, 68, 68, 0.1); border: 1px solid rgba(255, 68, 68, 0.3); color: #ff8080; }
.banner-success { background: rgba(68, 255, 136, 0.08); border: 1px solid rgba(68, 255, 136, 0.3); color: var(--success); }

/* social */
.social { margin-top: var(--space-6); }
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-dim);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}
.divider::before, .divider::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}
.social-google { display: flex; justify-content: center; margin-bottom: var(--space-3); min-height: 44px; }
.github-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  height: 48px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: #1c1f24;
  color: var(--text-primary);
  font-size: var(--text-base);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}
.github-btn:hover { background: #262b31; border-color: rgba(255,255,255,0.16); }
.github-btn [data-lucide] { font-size: 18px; }

.auth-switch {
  margin-top: var(--space-8);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.auth-switch a { color: var(--accent); font-weight: 600; }
.auth-back {
  position: absolute;
  top: var(--space-6); right: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  display: inline-flex; align-items: center; gap: var(--space-2);
  z-index: 3;
}
.auth-back:hover { color: var(--text-primary); }

/* ---- Responsive ----------------------------------------------------------- */
@media (max-width: 900px) {
  .auth { grid-template-columns: 1fr; }
  .auth-visual { display: none; }
  .auth-card .logo { display: inline-flex; }
  .auth-panel { min-height: 100vh; padding-top: var(--space-16); }
}