/*
  Shared "premium SaaS" design language for the Plateya Accelerator onboarding
  funnel (sign-up + inscription/step1..step7). Scoped to these pages only via
  the .premium-* / .onb-* class prefixes below — never touches base site
  classes, so it's safe to load alongside the existing stylesheets.
*/

:root {
  --onb-space-1: 4px;
  --onb-space-2: 8px;
  --onb-space-3: 12px;
  --onb-space-4: 16px;
  --onb-space-5: 24px;
  --onb-space-6: 32px;
  --onb-space-7: 48px;
  --onb-space-8: 64px;

  --onb-radius-sm: 8px;
  --onb-radius-md: 14px;
  --onb-radius-lg: 20px;
  --onb-radius-pill: 999px;

  --onb-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  --onb-shadow-md: 0 4px 8px rgba(16, 24, 40, 0.04), 0 8px 24px rgba(16, 24, 40, 0.08);
  --onb-shadow-lg: 0 8px 16px rgba(16, 24, 40, 0.05), 0 16px 40px rgba(16, 24, 40, 0.10);
  --onb-shadow-glow: 0 0 0 4px rgba(233, 78, 27, 0.10);

  --onb-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --onb-duration-fast: 160ms;
  --onb-duration-base: 280ms;
  --onb-duration-slow: 480ms;

  --onb-success: #13CC84;
  --onb-success-bg: #EAFBF3;
  --onb-warning: #B5790A;
  --onb-warning-bg: #FFF7E6;
  --onb-error: #d13c2c;
  --onb-error-bg: #FDECEA;
  --onb-ink: #101828;
  --onb-ink-soft: #475467;
  --onb-ink-faint: #98A2B3;
  --onb-border: #E4E7EC;
  --onb-surface: #FFFFFF;
  --onb-surface-tint: #FBFAF9;
}

/* ---------- Layout / surfaces ---------- */

.premium-card {
  background: var(--onb-surface);
  border: 1px solid var(--onb-border);
  border-radius: var(--onb-radius-lg);
  box-shadow: var(--onb-shadow-sm);
  padding: var(--onb-space-6);
  transition: box-shadow var(--onb-duration-base) var(--onb-ease), transform var(--onb-duration-base) var(--onb-ease);
}

.premium-card--tinted {
  background: var(--onb-surface-tint);
  border-color: transparent;
}

.premium-card--interactive:hover {
  box-shadow: var(--onb-shadow-md);
  transform: translateY(-2px);
}

.premium-section-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--onb-ink-faint);
  margin-bottom: var(--onb-space-2);
}

.premium-heading {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--onb-ink);
  letter-spacing: -0.01em;
}

.premium-subtext {
  font-size: 15px;
  line-height: 1.6;
  color: var(--onb-ink-soft);
}

/* ---------- Buttons ---------- */

.premium-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--onb-space-2);
  min-height: 48px;
  padding: 12px 28px;
  border-radius: var(--onb-radius-md);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: transform var(--onb-duration-fast) var(--onb-ease),
              box-shadow var(--onb-duration-fast) var(--onb-ease),
              background var(--onb-duration-fast) var(--onb-ease),
              opacity var(--onb-duration-fast) var(--onb-ease);
}

.premium-btn:active {
  transform: scale(0.98);
}

.premium-btn--primary {
  background: var(--primary-color-1, #e94e1b);
  color: #fff;
  box-shadow: var(--onb-shadow-sm);
}

.premium-btn--primary:hover {
  box-shadow: var(--onb-shadow-md);
  transform: translateY(-1px);
}

.premium-btn--ghost {
  background: transparent;
  color: var(--onb-ink-soft);
  border: 1.5px solid var(--onb-border);
}

.premium-btn--ghost:hover {
  border-color: var(--primary-color-1, #e94e1b);
  color: var(--primary-color-1, #e94e1b);
}

.premium-btn--link {
  background: none;
  border: none;
  color: var(--primary-color-1, #e94e1b);
  padding: 4px 0;
  min-height: 0;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.premium-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ---------- Stepper (Email Verification -> Profile -> Interview -> Membership) ---------- */

.onb-stepper {
  display: flex;
  align-items: center;
  gap: var(--onb-space-2);
  flex-wrap: wrap;
  margin-bottom: var(--onb-space-6);
}

.onb-stepper__item {
  display: flex;
  align-items: center;
  gap: var(--onb-space-2);
}

.onb-stepper__dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  background: var(--onb-surface-tint);
  color: var(--onb-ink-faint);
  border: 1.5px solid var(--onb-border);
  transition: all var(--onb-duration-base) var(--onb-ease);
}

.onb-stepper__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--onb-ink-faint);
}

.onb-stepper__item--done .onb-stepper__dot {
  background: var(--onb-success);
  border-color: var(--onb-success);
  color: #fff;
}

.onb-stepper__item--done .onb-stepper__label {
  color: var(--onb-ink-soft);
}

.onb-stepper__item--active .onb-stepper__dot {
  background: var(--primary-color-1, #e94e1b);
  border-color: var(--primary-color-1, #e94e1b);
  color: #fff;
  box-shadow: var(--onb-shadow-glow);
}

.onb-stepper__item--active .onb-stepper__label {
  color: var(--onb-ink);
  font-weight: 700;
}

.onb-stepper__connector {
  width: 24px;
  height: 1.5px;
  background: var(--onb-border);
}

.onb-stepper__item--done + .onb-stepper__connector {
  background: var(--onb-success);
}

/* ---------- Progress bar ---------- */

.onb-progress-track {
  width: 100%;
  height: 8px;
  border-radius: var(--onb-radius-pill);
  background: var(--onb-surface-tint);
  border: 1px solid var(--onb-border);
  overflow: hidden;
}

.onb-progress-fill {
  height: 100%;
  border-radius: var(--onb-radius-pill);
  background: linear-gradient(90deg, var(--primary-color-1, #e94e1b), #ff8a5c);
  transition: width var(--onb-duration-slow) var(--onb-ease);
}

/* ---------- Radio / checkbox "cards" ---------- */

.onb-option-card {
  display: flex;
  align-items: center;
  gap: var(--onb-space-3);
  padding: var(--onb-space-4) var(--onb-space-5);
  border: 1.5px solid var(--onb-border);
  border-radius: var(--onb-radius-md);
  cursor: pointer;
  transition: all var(--onb-duration-fast) var(--onb-ease);
  background: var(--onb-surface);
}

.onb-option-card:hover {
  border-color: var(--primary-color-1, #e94e1b);
  background: var(--onb-surface-tint);
}

.onb-option-card--selected {
  border-color: var(--primary-color-1, #e94e1b);
  background: #FFF5F0;
  box-shadow: var(--onb-shadow-glow);
}

/* ---------- Badges / status pills ---------- */

.onb-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--onb-radius-pill);
  font-size: 13px;
  font-weight: 600;
}

.onb-badge--success { background: var(--onb-success-bg); color: #0F9D6A; }
.onb-badge--warning { background: var(--onb-warning-bg); color: var(--onb-warning); }
.onb-badge--error { background: var(--onb-error-bg); color: var(--onb-error); }
.onb-badge--neutral { background: var(--onb-surface-tint); color: var(--onb-ink-soft); }

/* ---------- Loading / spinner ---------- */

.onb-spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  animation: onb-spin 0.7s linear infinite;
  display: inline-block;
}

.onb-spinner--dark {
  border-color: var(--onb-border);
  border-top-color: var(--primary-color-1, #e94e1b);
}

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

/* ---------- Entrance animations ---------- */

@keyframes onb-fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes onb-scale-in {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes onb-pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(233, 78, 27, 0.35); }
  100% { box-shadow: 0 0 0 16px rgba(233, 78, 27, 0); }
}

@keyframes onb-check-draw {
  from { stroke-dashoffset: 24; }
  to { stroke-dashoffset: 0; }
}

.onb-anim-fade-up {
  animation: onb-fade-up var(--onb-duration-slow) var(--onb-ease) both;
}

.onb-anim-scale-in {
  animation: onb-scale-in var(--onb-duration-base) var(--onb-ease) both;
}

/* ---------- Email illustration (pure CSS, no external asset) ---------- */

.onb-mail-illustration {
  width: 96px;
  height: 96px;
  margin: 0 auto var(--onb-space-5);
  border-radius: 28px;
  background: linear-gradient(160deg, #FFF3EC, #FFE3D4);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: onb-pulse-ring 2.4s var(--onb-ease) infinite;
}

.onb-mail-illustration svg {
  width: 44px;
  height: 44px;
  color: var(--primary-color-1, #e94e1b);
  animation: onb-fade-up 0.6s var(--onb-ease) both;
}

/* ---------- Success checkmark ---------- */

.onb-success-check {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--onb-success-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--onb-space-4);
}

.onb-success-check svg path {
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  animation: onb-check-draw 0.5s var(--onb-ease) 0.15s forwards;
}

/* ---------- Inline field feedback (reused pattern from sign-up.html) ---------- */

.onb-field-hint {
  font-size: 13px;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.onb-field-hint--error { color: var(--onb-error); font-weight: 600; }
.onb-field-hint--success { color: #0F9D6A; font-weight: 500; }
.onb-field-hint--muted { color: var(--onb-ink-faint); }

@media (max-width: 767px) {
  .premium-card { padding: var(--onb-space-5); }
  .premium-heading { font-size: 22px; }
  .onb-stepper__label { display: none; }
}