*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --cream: #f5f0e8;
  --cream-dark: #ebe4d9;
  --red: #e1261c;
  --red-dark: #c41e15;
  --red-light: #ff3d32;
  --ink: #1a1210;
  --ink-muted: #5c5048;
  --border-width: 3px;
  --radius: 12px;
  --shadow-offset: 4px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background-color: var(--cream);
  color: var(--ink);
  min-height: 100dvh;
  line-height: 1.5;
}

.page {
  max-width: 520px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  width: min(220px, 60vw);
  height: auto;
  display: block;
  margin: 0 auto 1.25rem;
  filter: drop-shadow(2px 2px 0 rgba(225, 38, 28, 0.15));
}

.tagline {
  font-family: 'Fredoka', sans-serif;
  font-weight: 600;
  font-size: clamp(1.1rem, 3.5vw, 1.35rem);
  color: var(--red);
  letter-spacing: 0.01em;
  line-height: 1.35;
}

/* Form container */
.form-container {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.progress-bar {
  height: 6px;
  background: var(--cream-dark);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 0.75rem;
  border: 2px solid var(--ink);
}

.progress-fill {
  height: 100%;
  background: var(--red);
  border-radius: 99px;
  width: 20%;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-indicator {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 1.5rem;
}

/* Steps */
form {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.step legend {
  font-family: 'Fredoka', sans-serif;
  font-weight: 600;
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  color: var(--ink);
  margin-bottom: 1.25rem;
  line-height: 1.25;
  display: block;
  width: 100%;
  float: none;
  padding: 0;
}

.step {
  border: none;
  flex: 1;
  display: none;
  animation: fadeIn 0.3s ease;
  min-width: 0;
}

.step.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Options */
.options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  clear: both;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.option {
  display: block;
  cursor: pointer;
}

.option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.option span {
  display: block;
  padding: 1rem 1.25rem;
  font-weight: 500;
  font-size: 1.05rem;
  background: var(--cream);
  border: var(--border-width) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  user-select: none;
}

.option:hover span {
  transform: translate(-1px, -1px);
  box-shadow: calc(var(--shadow-offset) + 1px) calc(var(--shadow-offset) + 1px) 0 var(--ink);
}

.option input:checked + span {
  background: var(--red);
  color: #fff;
  border-color: var(--red-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--red-dark);
}

.option input:focus-visible + span {
  outline: 3px solid var(--red);
  outline-offset: 2px;
}

/* Text fields */
.text-fields {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  clear: both;
}

.field {
  width: 100%;
  min-width: 0;
}

.field label {
  display: block;
  font-family: 'Fredoka', sans-serif;
  font-weight: 500;
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.field input {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  padding: 0.9rem 1.1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 1.05rem;
  font-weight: 500;
  background: var(--cream);
  border: var(--border-width) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  color: var(--ink);
}

.field input::placeholder {
  color: var(--ink-muted);
  opacity: 0.6;
}

.field input:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--red-dark);
}

.field input.invalid {
  border-color: var(--red);
  animation: shake 0.35s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.field-hint {
  font-size: 0.85rem;
  color: var(--red);
  margin-top: 0.4rem;
  min-height: 1.25rem;
  font-weight: 500;
}

/* Nav buttons */
.nav-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 0.5rem;
}

.btn {
  font-family: 'Fredoka', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.85rem 1.75rem;
  border: var(--border-width) solid var(--ink);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  flex: 1;
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: none !important;
}

.btn-back {
  background: var(--cream);
  color: var(--ink);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--ink);
  flex: 0 0 auto;
  min-width: 100px;
}

.btn-back:hover {
  transform: translate(-1px, -1px);
  box-shadow: calc(var(--shadow-offset) + 1px) calc(var(--shadow-offset) + 1px) 0 var(--ink);
}

.btn-next,
.btn-submit {
  background: var(--red);
  color: #fff;
  border-color: var(--red-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--red-dark);
}

.btn-next:hover,
.btn-submit:hover {
  background: var(--red-light);
  transform: translate(-1px, -1px);
  box-shadow: calc(var(--shadow-offset) + 1px) calc(var(--shadow-offset) + 1px) 0 var(--red-dark);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-submit:disabled:hover {
  transform: none;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--red-dark);
}

/* Success screen */
.page--success {
  justify-content: center;
}

.page--success .form-container {
  flex: 0;
  justify-content: center;
}

.success-screen {
  text-align: center;
  padding: 2rem 0;
  animation: fadeIn 0.5s ease;
}

.success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 1.25rem;
  background: var(--red);
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: var(--border-width) solid var(--red-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--red-dark);
}

.success-screen h2 {
  font-family: 'Fredoka', sans-serif;
  font-size: 1.75rem;
  color: var(--ink);
}

@media (max-width: 400px) {
  .options-grid {
    grid-template-columns: 1fr;
  }

  .nav-buttons {
    flex-direction: column-reverse;
  }

  .btn-back {
    flex: 1;
  }
}