/* ============================================================
   TMG Books — Onboarding Questionnaire Styles
   Brand: charcoal/cream/gold, Bodoni Moda display + Roboto body
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-charcoal:      #0A1015;
  --color-cream:         #F2F1E6;
  --color-gold:          #DDD68C;
  --color-gold-dim:      rgba(221, 214, 140, 0.15);
  --color-white:         #FFFFFF;
  --color-muted:         #4D5156;
  --color-border:        #B8C0CC;
  --color-border-focus:  #DDD68C;
  --color-bg-field:      #FFFFFF;
  --color-success:       #00b090;
  --color-danger:        #fc5185;

  --font-display: 'Bodoni Moda', serif;
  --font-body:    'Roboto', sans-serif;

  --container: 720px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 50px;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-charcoal);
  background: var(--color-cream);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Header --- */
.ob-header {
  background: var(--color-charcoal);
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.ob-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ob-logo {
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  font-optical-sizing: auto;
  letter-spacing: 0.02em;
}

.ob-logo__tmg {
  color: var(--color-gold);
}

.ob-logo__books {
  color: var(--color-white);
  margin-left: 4px;
}

.ob-lang-toggle {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: border-color 0.2s, background 0.2s;
}

.ob-lang-toggle:hover {
  border-color: var(--color-gold);
  background: rgba(221, 214, 140, 0.1);
}

.ob-lang-toggle__flag { font-size: 18px; }

/* --- Hero --- */
.ob-hero {
  background: var(--color-charcoal);
  padding: 48px 24px 56px;
  text-align: center;
}

.ob-hero__inner {
  max-width: var(--container);
  margin: 0 auto;
}

.ob-hero__eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.ob-hero__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 400;
  font-optical-sizing: auto;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 8px;
}

.ob-hero__name {
  color: var(--color-gold);
}

.ob-hero__name::before {
  content: ', ';
}

.ob-hero__subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
  margin-top: 12px;
}

.ob-hero__subtitle strong {
  color: var(--color-gold);
}

.ob-hero__desc {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  margin: 16px auto 0;
  line-height: 1.6;
}

/* --- Form --- */
.ob-form {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

/* --- Category Fieldset --- */
.ob-category {
  border: none;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  margin-bottom: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.ob-category__legend {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  width: 100%;
}

.ob-category__number {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  color: var(--color-gold);
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ob-category__title {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-charcoal);
  letter-spacing: -0.01em;
}

/* --- Questions --- */
.ob-question {
  margin-bottom: 20px;
}

.ob-question:last-child {
  margin-bottom: 0;
}

.ob-question__label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-charcoal);
  margin-bottom: 8px;
  line-height: 1.5;
}

.ob-question__input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-charcoal);
  background: var(--color-bg-field);
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
  line-height: 1.5;
}

.ob-question__input:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-gold-dim);
}

.ob-question__input::placeholder {
  color: #999;
}

.ob-question__hint {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* --- Conditional Gate --- */
.ob-gate {
  margin-bottom: 20px;
}

.ob-gate__label {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-charcoal);
  margin-bottom: 12px;
  line-height: 1.5;
}

.ob-gate__buttons {
  display: flex;
  gap: 12px;
}

.ob-gate__btn {
  padding: 10px 28px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-charcoal);
  cursor: pointer;
  transition: all 0.2s;
}

.ob-gate__btn:hover {
  border-color: var(--color-gold);
  background: var(--color-gold-dim);
}

.ob-gate__btn.active {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-charcoal);
}

.ob-conditional {
  animation: slideDown 0.3s ease-out;
}

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

/* --- File Upload --- */
.ob-upload {
  position: relative;
}

.ob-upload__input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  overflow: hidden;
}

.ob-upload__label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 32px 24px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  color: var(--color-muted);
  font-size: 14px;
  transition: border-color 0.2s, background 0.2s;
}

.ob-upload__label:hover,
.ob-upload__label.dragover {
  border-color: var(--color-gold);
  background: var(--color-gold-dim);
}

.ob-upload__list {
  list-style: none;
  margin-top: 12px;
}

.ob-upload__list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--color-cream);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--color-charcoal);
}

.ob-upload__list li .file-size {
  color: var(--color-muted);
  font-size: 12px;
}

.ob-upload__list li .file-remove {
  background: none;
  border: none;
  color: var(--color-danger);
  cursor: pointer;
  font-size: 18px;
  padding: 0 4px;
  line-height: 1;
}

/* --- Submit --- */
.ob-submit-wrap {
  text-align: center;
  padding: 8px 0 32px;
}

.ob-submit {
  display: inline-block;
  padding: 16px 48px;
  background: var(--color-charcoal);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  letter-spacing: 0.02em;
}

.ob-submit:hover {
  background: #1D1E20;
}

.ob-submit:active {
  transform: scale(0.98);
}

.ob-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ob-submit__docs-note {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
  font-style: italic;
}

.ob-submit__note {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 12px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Loading Overlay --- */
.ob-loading {
  position: fixed;
  inset: 0;
  background: rgba(10, 16, 21, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.ob-loading__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.ob-loading__text {
  color: var(--color-white);
  font-size: 16px;
  margin-top: 16px;
}

/* --- Thank You --- */
.ob-thankyou {
  text-align: center;
  padding: 80px 24px;
}

.ob-thankyou__inner {
  max-width: var(--container);
  margin: 0 auto;
}

.ob-thankyou__icon {
  margin-bottom: 24px;
}

.ob-thankyou__title {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  color: var(--color-charcoal);
  margin-bottom: 12px;
}

.ob-thankyou__text {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.ob-thankyou__cta {
  display: inline-block;
  padding: 14px 36px;
  background: var(--color-charcoal);
  color: var(--color-white);
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  transition: background 0.2s;
}

.ob-thankyou__cta:hover {
  background: #1D1E20;
}

/* --- Footer --- */
.ob-footer {
  background: var(--color-charcoal);
  color: rgba(255,255,255,0.4);
  text-align: center;
  padding: 20px 24px;
  font-size: 13px;
  margin-top: auto;
}

/* --- Error Toast --- */
.ob-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-danger);
  color: var(--color-white);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  z-index: 2000;
  animation: toastIn 0.3s ease-out;
  max-width: 90vw;
  text-align: center;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(16px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* --- Mobile --- */
@media (max-width: 640px) {
  .ob-hero { padding: 32px 16px 40px; }
  .ob-form { padding: 20px 16px 48px; }
  .ob-category { padding: 24px 20px; border-radius: var(--radius-md); }
  .ob-category__number { font-size: 22px; min-width: 28px; }
  .ob-category__title { font-size: 16px; }
  .ob-question__label { font-size: 13px; }
  .ob-question__input { font-size: 16px; /* prevent iOS zoom */ }
  .ob-submit { width: 100%; padding: 16px 24px; }
  .ob-gate__buttons { flex-direction: column; gap: 8px; }
  .ob-gate__btn { width: 100%; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  .ob-conditional { animation: none; }
  .ob-loading__spinner { animation-duration: 1.5s; }
}

/* --- Progress indicator --- */
.ob-progress {
  position: sticky;
  top: 56px;
  z-index: 99;
  height: 3px;
  background: rgba(0,0,0,0.05);
}

.ob-progress__bar {
  height: 100%;
  background: var(--color-gold);
  transition: width 0.3s ease;
  width: 0%;
}