:root {
  --c-sun: #fbbf24;
  --c-sun-deep: #f59e0b;
  --c-coral: #fb7185;
  --c-coral-deep: #f43f5e;
  --c-orange: #fb923c;
  --c-mint: #34d399;
  --c-sky: #38bdf8;
  --c-lavender: #a78bfa;
  --c-pink: #f472b6;
  --c-cream: #fff8ed;
  --c-cream-2: #fef3c7;

  --c-surface: #ffffff;
  --c-text: #1e293b;
  --c-text-soft: #64748b;
  --c-border: #fde68a;
  --c-border-soft: #fef3c7;
  --c-primary: #f97316;
  --c-primary-deep: #ea580c;
  --c-primary-soft: #fff7ed;
  --c-success: #16a34a;
  --c-error: #dc2626;

  --shadow-card: 0 14px 0 rgba(251, 146, 60, 0.12), 0 30px 70px -20px rgba(244, 63, 94, 0.35), 0 8px 24px -8px rgba(15, 23, 42, 0.18);
  --radius: 22px;
  --radius-sm: 14px;

  --font-display: "Baloo 2", "Quicksand", -apple-system, "Segoe UI", sans-serif;
  --font-body: "Quicksand", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--c-text);
  min-height: 100vh;
  font-weight: 500;
}

button { font: inherit; cursor: pointer; font-family: var(--font-body); }

.auth-shell {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  overflow: hidden;
  background:
    radial-gradient(800px 400px at 90% 10%, rgba(56, 189, 248, 0.22), transparent 65%),
    radial-gradient(700px 400px at 10% 90%, rgba(244, 114, 182, 0.22), transparent 65%),
    linear-gradient(180deg, #fff8ed 0%, #fef3c7 100%);
}

.auth-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.blob-1 { width: 460px; height: 460px; background: var(--c-sun); top: -160px; left: -120px; }
.blob-2 { width: 380px; height: 380px; background: var(--c-coral); bottom: -120px; right: -80px; }
.blob-3 { width: 280px; height: 280px; background: var(--c-lavender); top: 30%; left: 60%; opacity: 0.35; }

.deco {
  position: absolute;
  font-size: 38px;
  filter: drop-shadow(0 6px 10px rgba(0,0,0,0.12));
  user-select: none;
}
.deco-sun { top: 6%; right: 8%; font-size: 56px; animation: spin 22s linear infinite; }
.deco-cloud { top: 14%; left: 8%; font-size: 44px; animation: drift 14s ease-in-out infinite; }
.deco-balloon { bottom: 12%; left: 7%; font-size: 50px; animation: float-up 5s ease-in-out infinite; }
.deco-star-1 { top: 38%; left: 5%; font-size: 26px; animation: twinkle 2.5s ease-in-out infinite; }
.deco-star-2 { top: 18%; right: 18%; font-size: 22px; animation: twinkle 2.5s ease-in-out infinite 1.2s; }
.deco-kite { bottom: 18%; right: 6%; font-size: 44px; animation: kite-fly 7s ease-in-out infinite; }
.deco-rainbow { bottom: 6%; right: 22%; font-size: 36px; opacity: 0.85; animation: float-up 6s ease-in-out infinite 1s; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes drift { 0%,100% { transform: translateX(0); } 50% { transform: translateX(30px); } }
@keyframes float-up { 0%,100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-18px) rotate(3deg); } }
@keyframes twinkle { 0%,100% { opacity: 0.4; transform: scale(0.85); } 50% { opacity: 1; transform: scale(1.15); } }
@keyframes kite-fly { 0%,100% { transform: rotate(-5deg) translateY(0); } 50% { transform: rotate(8deg) translateY(-15px); } }

.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  background: var(--c-surface);
  border: 4px solid white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 36px 34px 26px;
}

.back-home {
  position: absolute;
  top: 14px;
  left: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text-soft);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 999px;
  transition: all 0.18s cubic-bezier(.34,1.56,.64,1);
  background: var(--c-cream-2);
}
.back-home:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary-deep);
  transform: translateX(-3px);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 8px 0 26px;
}
.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--c-sun) 0%, var(--c-coral) 50%, var(--c-lavender) 100%);
  color: white;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 18px;
  display: grid;
  place-items: center;
  letter-spacing: 0.5px;
  box-shadow: 0 8px 16px -4px rgba(251, 113, 133, 0.5);
  transform: rotate(-5deg);
  transition: transform 0.25s cubic-bezier(.34,1.56,.64,1);
}
.auth-brand:hover .brand-mark { transform: rotate(5deg) scale(1.05); }
.brand-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.1;
}
.brand-sub {
  font-size: 13px;
  color: var(--c-text-soft);
  margin-top: 2px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--c-cream-2);
  border-radius: 999px;
  padding: 5px;
  margin-bottom: 26px;
  border: 2px solid white;
}
.tab {
  border: none;
  background: transparent;
  padding: 11px 14px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--c-text-soft);
  transition: all 0.2s cubic-bezier(.34,1.56,.64,1);
}
.tab.active {
  background: white;
  color: var(--c-primary-deep);
  box-shadow: 0 3px 10px -2px rgba(251, 146, 60, 0.3);
  transform: scale(1.02);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: panel-in 0.25s cubic-bezier(.34,1.56,.64,1); }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--c-text);
  letter-spacing: -0.01em;
}
.panel-sub {
  margin: 0 0 24px;
  color: var(--c-text-soft);
  font-size: 14.5px;
}

.field {
  display: block;
  margin-bottom: 16px;
}
.field > span {
  display: block;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: 7px;
  color: var(--c-text);
}
.field input,
.field select {
  width: 100%;
  padding: 13px 16px;
  border: 2px solid var(--c-border-soft);
  border-radius: 14px;
  font-size: 14.5px;
  font-family: var(--font-body);
  background: white;
  color: var(--c-text);
  transition: border-color 0.18s, box-shadow 0.18s, background 0.18s;
  font-weight: 500;
}
.field input::placeholder { color: #cbd5e1; }
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(251, 146, 60, 0.18);
  background: var(--c-primary-soft);
}
.hint {
  display: block;
  margin-top: 6px;
  color: var(--c-text-soft);
  font-size: 12px;
  font-weight: 500;
}

.password-wrap {
  position: relative;
  display: block;
}
.password-wrap input {
  width: 100%;
  padding-right: 46px;
}
.password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  background: transparent;
  border: 0;
  padding: 6px 8px;
  border-radius: 10px;
  font-size: 18px;
  line-height: 1;
  color: var(--c-text-soft);
  transition: background .15s ease;
}
.password-toggle:hover { background: rgba(251,146,60,0.12); }
.password-toggle:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 20px;
  border-radius: 999px;
  border: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  letter-spacing: 0.2px;
  transition: all 0.18s cubic-bezier(.34,1.56,.64,1);
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-coral) 0%, var(--c-primary) 100%);
  color: white;
  box-shadow: 0 6px 0 var(--c-primary-deep), 0 12px 24px -6px rgba(244, 63, 94, 0.45);
  margin-top: 6px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 var(--c-primary-deep), 0 16px 28px -6px rgba(244, 63, 94, 0.55);
}
.btn-primary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--c-primary-deep), 0 6px 12px -4px rgba(244, 63, 94, 0.4);
}
.btn[disabled] { opacity: 0.65; cursor: progress; transform: none; }

.form-msg {
  margin-top: 14px;
  font-size: 13.5px;
  font-weight: 600;
  min-height: 18px;
  text-align: center;
}
.form-msg.success { color: var(--c-success); }
.form-msg.error { color: var(--c-error); }

.auth-foot {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 2px dashed var(--c-border-soft);
  text-align: center;
  font-size: 12.5px;
  color: var(--c-text-soft);
  font-weight: 600;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.dot { opacity: 0.5; }

@media (max-width: 520px) {
  .auth-card { padding: 28px 22px 22px; }
  .panel-title { font-size: 20px; }
  .deco-cloud, .deco-rainbow { display: none; }
  .deco-sun { font-size: 44px; right: 5%; top: 4%; }
  .deco-balloon { font-size: 40px; }
}