/* =============================================================================
   Youth OGP Registration Portal — stylesheet
   Mobile-first. Civic-tech palette: deep blue / teal / warm amber accent.
   ============================================================================= */

:root {
  --navy-950: #0a1a33;
  --navy-900: #0b2044;
  --navy-800: #0f2c5c;
  --blue-700: #0d3f8f;
  --blue-600: #1450ad;
  --blue-500: #1e63c9;
  --teal-700: #0b6e63;
  --teal-600: #0f8a7a;
  --teal-500: #14a08e;
  --teal-100: #e3f6f2;
  --amber-600: #d97706;
  --amber-500: #f59e0b;
  --amber-400: #fbbf24;
  --amber-100: #fef3c7;
  --neutral-50: #f7f9fb;
  --neutral-100: #eef2f6;
  --neutral-200: #e2e8f0;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --red-50: #fef2f2;
  --red-200: #fecaca;
  --red-600: #dc2626;
  --font-sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--neutral-50);
  color: var(--navy-950);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) {
  .container { padding: 0 1.5rem; }
}
@media (min-width: 1024px) {
  .container { padding: 0 2rem; }
}

/* --- Layout: header / footer --------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--neutral-200);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}
.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  flex-shrink: 0;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.brand-text-main { display: block; font-size: 0.875rem; font-weight: 700; color: var(--navy-950); line-height: 1.2; }
.brand-text-sub { display: block; font-size: 0.6875rem; font-weight: 500; color: var(--neutral-600); }

.site-nav { display: none; align-items: center; gap: 1.5rem; font-size: 0.875rem; font-weight: 500; color: var(--neutral-600); }
.site-nav a { text-decoration: none; transition: color 0.15s; }
.site-nav a:hover { color: var(--blue-700); }
@media (min-width: 640px) { .site-nav { display: flex; } }

.site-footer { background: var(--navy-950); color: var(--neutral-200); border-top: 1px solid var(--neutral-200); }
.site-footer .container { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.footer-grid { display: grid; gap: 2rem; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
.footer-grid h3 { margin: 0 0 0.5rem; font-size: 0.875rem; font-weight: 700; color: #fff; }
.footer-grid p, .footer-grid li { color: #94a3b8; font-size: 0.875rem; }
.footer-grid ul { list-style: none; margin: 0.5rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-grid a { text-decoration: none; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { margin-top: 2rem; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; font-size: 0.75rem; color: var(--neutral-500); }

/* --- Buttons --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 0.15s, opacity 0.15s;
}
.btn:disabled { cursor: not-allowed; opacity: 0.5; }
.btn-primary { background: var(--blue-700); color: #fff; box-shadow: 0 1px 2px rgba(10,26,51,0.08); }
.btn-primary:hover:not(:disabled) { background: var(--blue-600); }
.btn-secondary { background: #fff; color: var(--navy-900); border: 1px solid var(--neutral-200); }
.btn-secondary:hover:not(:disabled) { background: var(--neutral-100); }
.btn-accent { background: var(--amber-500); color: var(--navy-950); box-shadow: 0 10px 20px -8px rgba(120,53,15,0.35); }
.btn-accent:hover:not(:disabled) { background: var(--amber-400); }
.btn-block { width: 100%; }
.btn-ghost-white { background: rgba(255,255,255,0.06); color: #fff; border: 1px solid rgba(255,255,255,0.3); }
.btn-ghost-white:hover { background: rgba(255,255,255,0.15); }

/* --- Hero -------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--blue-700) 55%, var(--teal-700) 100%);
}
.hero .container { position: relative; padding: 3rem 1rem; }
@media (min-width: 640px) { .hero .container { padding: 4.5rem 1.5rem; } }
.hero-grid { display: grid; gap: 3rem; align-items: center; }
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1.1fr 0.9fr; } }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(255,255,255,0.1); color: var(--amber-400);
  border: 1px solid rgba(255,255,255,0.2); border-radius: 999px;
  padding: 0.35rem 1rem; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em;
}
.hero h1 { font-size: 2.25rem; font-weight: 800; line-height: 1.15; margin: 1.5rem 0 0; letter-spacing: -0.01em; }
@media (min-width: 640px) { .hero h1 { font-size: 3rem; } }
.hero p.lead { margin-top: 1.25rem; max-width: 34rem; font-size: 1rem; color: rgba(239,246,255,0.9); }
@media (min-width: 640px) { .hero p.lead { font-size: 1.125rem; } }
.hero-cta-row { margin-top: 2rem; display: flex; flex-direction: column; gap: 0.75rem; }
@media (min-width: 640px) { .hero-cta-row { flex-direction: row; } }
.hero-stats { margin-top: 2.5rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; max-width: 28rem; border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1.5rem; }
.hero-stats dt { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.05em; color: rgba(219,234,254,0.7); }
.hero-stats dd { margin: 0.25rem 0 0; font-size: 1.125rem; font-weight: 700; }
.hero-visual { display: none; }
@media (min-width: 1024px) {
  .hero-visual { display: flex; align-items: center; justify-content: center; }
  .hero-visual-ring-outer { width: 20rem; height: 20rem; border-radius: 999px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.05); display: flex; align-items: center; justify-content: center; }
  .hero-visual-ring-inner { width: 14rem; height: 14rem; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.1); display: grid; grid-template-columns: repeat(2,1fr); gap: 1rem; align-items: center; justify-items: center; }
}

/* --- Sections / cards -------------------------------------------------------- */
.section { padding: 3.5rem 0; }
.section-soft { background: linear-gradient(135deg, var(--teal-100) 0%, var(--neutral-50) 60%); border-top: 1px solid var(--neutral-200); border-bottom: 1px solid var(--neutral-200); }
.section-heading { max-width: 42rem; margin: 0 auto; text-align: center; }
.section-heading h2 { font-size: 1.5rem; font-weight: 700; margin: 0; }
@media (min-width: 640px) { .section-heading h2 { font-size: 1.875rem; } }
.section-heading p { margin-top: 0.75rem; color: var(--neutral-600); }

.card {
  background: #fff;
  border: 1px solid var(--neutral-200);
  border-radius: 1rem;
  box-shadow: 0 1px 2px rgba(10,26,51,0.04), 0 8px 24px -12px rgba(10,26,51,0.12);
  padding: 1.5rem;
  position: relative;
}
@media (min-width: 640px) { .card { padding: 2rem; } }
.card-header { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1.5rem; }
.card-icon { flex-shrink: 0; width: 2.5rem; height: 2.5rem; border-radius: 0.5rem; background: var(--teal-100); color: var(--teal-700); display: flex; align-items: center; justify-content: center; }
.card-header h2 { margin: 0; font-size: 1.125rem; font-weight: 700; }
.card-header p { margin: 0.25rem 0 0; font-size: 0.875rem; color: var(--neutral-600); }

.grid-cards { display: grid; gap: 1.25rem; margin-top: 2.5rem; }
@media (min-width: 640px) { .grid-cards.cols-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-cards.cols-4 { grid-template-columns: repeat(4, 1fr); } }
.grid-cards .card { text-align: left; }
.step-number { font-size: 1.875rem; font-weight: 800; color: var(--neutral-200); }
.grid-cards h3 { font-size: 0.9375rem; font-weight: 700; margin: 0.75rem 0 0; }
.grid-cards p { font-size: 0.875rem; color: var(--neutral-600); margin: 0.4rem 0 0; }
.icon-chip { width: 2.5rem; height: 2.5rem; border-radius: 0.5rem; background: rgba(13,63,143,0.1); color: var(--blue-700); display: flex; align-items: center; justify-content: center; margin-top: 0.75rem; }
.pillar-card { text-align: center; }
.pillar-icon { width: 3rem; height: 3rem; border-radius: 999px; background: var(--teal-100); color: var(--teal-700); display: flex; align-items: center; justify-content: center; margin: 0 auto; }

.final-cta {
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--blue-700) 55%, var(--teal-700) 100%);
  color: #fff;
  text-align: center;
  padding: 3.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}
.final-cta h2 { margin: 0; font-size: 1.5rem; font-weight: 700; }
@media (min-width: 640px) { .final-cta h2 { font-size: 1.875rem; } }
.final-cta p { max-width: 34rem; margin: 0; color: rgba(239,246,255,0.9); }

/* --- Simple page (about / privacy) ------------------------------------------- */
.prose-page { max-width: 860px; margin: 0 auto; padding: 3.5rem 1rem; }
@media (min-width: 640px) { .prose-page { padding: 3.5rem 1.5rem; } }
.eyebrow { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--teal-700); }
.prose-page h1 { margin: 0.5rem 0 0; font-size: 1.875rem; font-weight: 800; }
@media (min-width: 640px) { .prose-page h1 { font-size: 2.25rem; } }
.prose-page p { font-size: 0.9375rem; line-height: 1.7; color: var(--neutral-600); }
.prose-page section + section { margin-top: 1.75rem; }
.prose-page h2 { font-size: 0.9375rem; font-weight: 700; margin: 0 0 0.35rem; color: var(--navy-950); }
.faq-grid { display: grid; gap: 1.25rem; margin-top: 2rem; }
@media (min-width: 640px) { .faq-grid { grid-template-columns: repeat(2, 1fr); } }
.faq-grid .card { padding: 1.25rem; }
.faq-grid h3 { margin: 0; font-size: 0.9375rem; font-weight: 700; }
.faq-grid p { margin: 0.4rem 0 0; font-size: 0.875rem; }

/* =============================================================================
   Registration wizard
   ============================================================================= */
.step-indicator-bar {
  position: sticky;
  top: 57px;
  z-index: 30;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--neutral-200);
}
.step-indicator-bar .container { padding-top: 1rem; padding-bottom: 1rem; }

.step-mobile { font-size: 0.75rem; font-weight: 600; color: var(--neutral-600); display: flex; justify-content: space-between; }
.step-mobile strong { color: var(--navy-950); }
.progress-track { margin-top: 0.5rem; height: 6px; width: 100%; border-radius: 999px; background: var(--neutral-200); overflow: hidden; }
.progress-fill { height: 100%; border-radius: 999px; background: var(--teal-600); transition: width 0.25s ease; }

.step-list { display: none; list-style: none; margin: 0; padding: 0; align-items: center; }
@media (min-width: 640px) { .step-list { display: flex; } }
.step-list li { display: flex; align-items: center; flex: 1; }
.step-list li:last-child { flex: none; }
.step-item-btn {
  display: flex; align-items: center; gap: 0.65rem;
  background: none; border: none; cursor: pointer;
  padding: 0.4rem 0.5rem; border-radius: 0.5rem; text-align: left;
}
.step-item-btn:hover:not(:disabled) { background: var(--neutral-100); }
.step-item-btn:disabled { cursor: not-allowed; opacity: 0.45; }
.step-badge {
  flex-shrink: 0; width: 2rem; height: 2rem; border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700;
  background: var(--neutral-200); color: var(--neutral-500);
}
.step-badge.is-current { background: var(--blue-700); color: #fff; }
.step-badge.is-complete { background: var(--teal-600); color: #fff; }
.step-label { font-size: 0.875rem; font-weight: 600; color: var(--neutral-500); }
.step-label.is-current { color: var(--navy-950); }
.step-label.is-complete { color: var(--teal-700); }
.step-connector { margin: 0 0.5rem; height: 1px; flex: 1; background: var(--neutral-200); }

.wizard-body { max-width: 820px; margin: 0 auto; padding: 2rem 1rem 7rem; }
@media (min-width: 640px) { .wizard-body { padding: 2.5rem 1.5rem 7rem; } }

.wizard-step { display: none; }
.wizard-step.is-active { display: block; }
.wizard-step > .card + .card { margin-top: 1.5rem; }

.wizard-footer {
  position: sticky; bottom: 0; z-index: 30;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(6px);
  border-top: 1px solid var(--neutral-200);
}
.wizard-footer .container { max-width: 820px; display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding-top: 1rem; padding-bottom: 1rem; }

/* --- Form controls ------------------------------------------------------------ */
.form-grid { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .form-grid.cols-2 { grid-template-columns: repeat(2, 1fr); } }
.form-grid .span-2 { grid-column: 1 / -1; }

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-size: 0.875rem; font-weight: 600; color: var(--navy-900); }
.field label .req { color: var(--amber-600); margin-left: 0.15rem; }
.field .hint { font-size: 0.75rem; color: var(--neutral-500); margin: 0; }
.field .error-msg { font-size: 0.75rem; font-weight: 600; color: var(--red-600); margin: 0; }

.input, .select, .textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 0.85rem;
  border-radius: 0.5rem;
  border: 1px solid var(--neutral-200);
  background: #fff;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--navy-950);
}
.textarea { min-height: 120px; padding: 0.7rem 0.85rem; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(30,99,201,0.15); }
.input.has-error, .select.has-error, .textarea.has-error { border-color: #f87171; }
.input:disabled, .select:disabled, .textarea:disabled { background: var(--neutral-100); cursor: not-allowed; }
.select {
  appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23475569" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg>');
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 18px;
  padding-right: 2.25rem;
}
.readonly-box {
  display: flex; align-items: center; min-height: 46px;
  border-radius: 0.5rem; border: 1px solid var(--neutral-200);
  background: var(--neutral-100); padding: 0 0.85rem;
  font-size: 0.9375rem; font-weight: 600; color: var(--navy-900);
}
.char-count { text-align: right; font-size: 0.75rem; color: var(--neutral-400); margin: 0.25rem 0 0; }

.tile-grid { display: grid; gap: 0.65rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .tile-grid.cols-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .tile-grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
.tile {
  display: flex; align-items: center; gap: 0.65rem;
  border: 1px solid var(--neutral-200); border-radius: 0.5rem;
  padding: 0.65rem 0.85rem; font-size: 0.875rem; font-weight: 500;
  cursor: pointer; user-select: none; background: #fff; color: var(--navy-900);
  transition: border-color 0.15s, background 0.15s;
}
.tile input { width: 1rem; height: 1rem; accent-color: var(--teal-600); flex-shrink: 0; }
.tile.is-checked { border-color: var(--teal-600); background: var(--teal-100); color: var(--teal-700); }

.pill-group { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.pill {
  display: flex; align-items: center; min-height: 46px; padding: 0 1.1rem;
  border-radius: 0.5rem; border: 1px solid var(--neutral-200);
  background: #fff; color: var(--navy-900); font-size: 0.875rem; font-weight: 500;
  cursor: pointer; user-select: none;
}
.pill input { position: absolute; opacity: 0; pointer-events: none; }
.pill.is-checked { background: var(--blue-700); border-color: var(--blue-700); color: #fff; }

.consent-row { display: flex; align-items: flex-start; gap: 0.75rem; font-size: 0.875rem; cursor: pointer; }
.consent-row input { margin-top: 0.2rem; width: 1rem; height: 1rem; flex-shrink: 0; accent-color: var(--blue-700); }
.consent-row + .consent-row { margin-top: 1rem; }
.consent-optional { border-top: 1px solid var(--neutral-200); margin-top: 1.25rem; padding-top: 1.25rem; }
.consent-optional input { accent-color: var(--teal-600); }
.consent-optional span { color: var(--neutral-600); }
.consent-optional strong { color: var(--navy-900); }

.alert {
  display: flex; gap: 0.65rem; align-items: flex-start;
  border-radius: 0.5rem; border: 1px solid var(--red-200);
  background: var(--red-50); color: var(--red-600);
  padding: 0.9rem 1rem; font-size: 0.875rem; margin-top: 1.5rem;
}

/* --- Review screen ------------------------------------------------------------ */
.review-row { display: flex; flex-direction: column; gap: 0.15rem; padding: 0.4rem 0; font-size: 0.875rem; }
@media (min-width: 640px) { .review-row { flex-direction: row; gap: 1rem; } }
.review-row dt { width: 100%; flex-shrink: 0; color: var(--neutral-500); }
@media (min-width: 640px) { .review-row dt { width: 13rem; } }
.review-row dd { margin: 0; font-weight: 600; color: var(--navy-950); }
.edit-link {
  position: absolute; top: 1.5rem; right: 1.5rem;
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.875rem; font-weight: 600; color: var(--blue-700);
  background: none; border: none; cursor: pointer; text-decoration: none;
}
.edit-link:hover { color: var(--blue-600); }

/* --- Success screen ------------------------------------------------------------ */
.success-wrap { max-width: 640px; margin: 0 auto; padding: 3.5rem 1rem; }
.success-card { text-align: center; padding: 2rem; }
@media (min-width: 640px) { .success-card { padding: 2.5rem; } }
.success-icon {
  margin: 0 auto; width: 4rem; height: 4rem; border-radius: 999px;
  background: var(--teal-100); color: var(--teal-700);
  display: flex; align-items: center; justify-content: center;
}
.success-card h1 { margin: 1.25rem 0 0; font-size: 1.5rem; font-weight: 800; }
@media (min-width: 640px) { .success-card h1 { font-size: 1.875rem; } }
.success-card > p.lead { max-width: 28rem; margin: 0.75rem auto 0; color: var(--neutral-600); font-size: 0.9375rem; }
.reference-box {
  margin-top: 2rem; border-radius: 0.75rem; border: 1px dashed var(--teal-500);
  background: rgba(227,246,242,0.5); padding: 1.5rem; text-align: left;
}
.reference-box-top { display: flex; flex-direction: column; align-items: center; gap: 1.25rem; }
.reference-box-text { width: 100%; text-align: left; }
.reference-box .label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--teal-700); }
.reference-box .ref-number { margin: 0.25rem 0 0; font-size: 1.5rem; font-weight: 800; color: var(--navy-950); }
.qr-block { display: flex; flex-direction: column; align-items: center; gap: 0.375rem; flex-shrink: 0; }
.qr-block canvas {
  width: 7.5rem; height: 7.5rem; display: block; background: #fff;
  border-radius: 0.5rem; padding: 0.5rem; border: 1px solid rgba(20,160,142,0.35);
  box-shadow: 0 1px 2px rgba(15,23,42,0.06);
}
.qr-caption { margin: 0; font-size: 0.6875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--neutral-500); }
@media (min-width: 640px) {
  .reference-box-top { flex-direction: row; align-items: center; justify-content: space-between; gap: 1.5rem; }
  .reference-box-text { width: auto; }
}
.reference-box dl { margin-top: 1.25rem; border-top: 1px solid rgba(20,160,142,0.25); padding-top: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.reference-box .kv-row { display: flex; justify-content: space-between; font-size: 0.875rem; }
.reference-box .kv-row dt { color: var(--neutral-600); }
.reference-box .kv-row dd { margin: 0; font-weight: 600; color: var(--navy-950); }
.success-note { margin-top: 1.25rem; font-size: 0.75rem; color: var(--neutral-500); }
.success-actions { margin-top: 2rem; display: flex; flex-direction: column; gap: 0.75rem; justify-content: center; }
@media (min-width: 640px) { .success-actions { flex-direction: row; } }
.profile-stub { margin-top: 1rem; display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.75rem; font-weight: 500; color: var(--neutral-400); background: none; border: none; cursor: not-allowed; }

.loading-spin { display: inline-block; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

@media print {
  .site-header, .site-footer, .no-print { display: none !important; }
}