/* Questupkids Landing — matches app theme (Inter, #2563EB palette) */

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --text-2: #64748b;
  --text-3: #94a3b8;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-light: #dbeafe;
  --green: #84cc16;
  --orange: #f59e0b;
  --yellow: #fbbf24;
  --success: #10b981;
  --error: #f43f5e;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 2px 12px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 8px 32px rgba(15, 23, 42, 0.08);
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-dark); }

.container {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

/* Background orbs */
.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.orb-1 {
  width: 480px; height: 480px;
  background: var(--accent-light);
  top: -120px; right: -80px;
}
.orb-2 {
  width: 360px; height: 360px;
  background: rgba(132, 204, 22, 0.2);
  bottom: 20%; left: -100px;
}
.orb-3 {
  width: 280px; height: 280px;
  background: rgba(251, 191, 36, 0.25);
  bottom: -60px; right: 15%;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.site-header.scrolled {
  border-color: var(--border);
  box-shadow: var(--shadow);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
}
.brand:hover { color: var(--text); }
.brand-icon { border-radius: 10px; box-shadow: var(--shadow); }
.brand-accent { color: var(--accent); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-menu a:not(.btn) {
  color: var(--text-2);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav-menu a:not(.btn):hover { color: var(--text); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: none;
  background: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}
.btn:active { transform: scale(0.98); }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 14px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }

.btn-danger {
  background: var(--error);
  color: #fff;
}
.btn-danger:hover { color: #fff; filter: brightness(1.05); }

/* Hero */
.hero {
  padding: 32px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 6px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border-radius: 999px;
}
.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--green), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 0 28px;
  font-size: 1.125rem;
  color: var(--text-2);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.hero-legal {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
}
.hero-legal a { color: var(--text-2); font-weight: 500; }
.hero-legal a:hover { color: var(--accent); }
.dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--text-3);
}

.hero-visual-wrap {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Showcase */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.showcase-panel h3 {
  margin: 16px 0 10px;
  font-size: 1.25rem;
  font-weight: 700;
}
.showcase-panel p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonials {
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface-2) 100%);
}

/* Stats */
.stats-strip {
  padding: 48px 0 64px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.stat {
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}
.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-2);
}

/* Sections */
.section { padding: 80px 0; }
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-head h2 {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.section-sub {
  margin: 0;
  color: var(--text-2);
  font-size: 1.05rem;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform 0.25s, box-shadow 0.25s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.feature-card img { margin-bottom: 20px; }
.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.125rem;
  font-weight: 700;
}
.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-2);
}

/* How it works */
.how { background: var(--surface-2); }
.how-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.how-copy h2 {
  margin: 0 0 28px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
}
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 12px;
}
.steps strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
}
.steps p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-2);
}
.how-visual {
  display: flex;
  justify-content: center;
}

/* Download */
.download-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 48px 56px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: var(--radius-lg);
  color: #fff;
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.35);
}
.download-card h2 {
  margin: 0 0 12px;
  font-size: 1.75rem;
  font-weight: 800;
}
.download-card p {
  margin: 0;
  opacity: 0.9;
  max-width: 480px;
}
.store-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.store-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}
.store-badge img {
  display: block;
  height: 40px;
  width: auto;
  border-radius: 5px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.store-badge-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}
.store-badge--soon {
  cursor: default;
  opacity: 0.95;
}
.store-badge--soon:hover img {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
}

/* Delete data */
.delete-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.delete-copy h2 {
  margin: 0 0 16px;
  font-size: 1.75rem;
  font-weight: 800;
}
.delete-copy > p {
  color: var(--text-2);
  margin: 0 0 20px;
}
.delete-notes {
  margin: 0 0 20px;
  padding-left: 1.25rem;
  color: var(--text-2);
  font-size: 0.95rem;
}
.delete-notes li { margin-bottom: 8px; }
.delete-more { font-size: 0.9rem; color: var(--text-2); }

.delete-form {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}
.required { color: var(--error); }

.delete-form input[type="email"],
.delete-form select,
.delete-form textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.delete-form input:focus,
.delete-form select:focus,
.delete-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}
.delete-form input.error,
.delete-form textarea.error {
  border-color: var(--error);
}

.form-check {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.form-check input { margin-top: 4px; accent-color: var(--accent); }
.form-check label {
  margin: 0;
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--text-2);
}

.form-status {
  margin: 16px 0 0;
  font-size: 0.9rem;
  min-height: 1.4em;
}
.form-status.success { color: var(--success); }
.form-status.error { color: var(--error); }

/* Footer */
.site-footer {
  padding: 64px 0 32px;
  background: var(--text);
  color: rgba(255, 255, 255, 0.75);
}
.site-footer a { color: rgba(255, 255, 255, 0.85); }
.site-footer a:hover { color: #fff; }
.site-footer .brand { color: #fff; }
.site-footer .brand-accent { color: var(--accent-muted, #60a5fa); }

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-tagline {
  margin: 12px 0 8px;
  font-size: 0.95rem;
}
.footer-copy {
  margin: 0;
  font-size: 0.85rem;
  opacity: 0.6;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.footer-nav h3 {
  margin: 0 0 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
}
.footer-nav a {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding-top: 24px;
  font-size: 0.875rem;
}
.footer-bottom .dot { background: rgba(255, 255, 255, 0.35); }

/* Legal pages */
.legal-page {
  padding: 120px 0 80px;
}
.legal-page .container {
  max-width: 720px;
}
.legal-page h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  font-weight: 800;
}
.legal-updated {
  margin: 0 0 32px;
  color: var(--text-3);
  font-size: 0.9rem;
}
.legal-page h2 {
  margin: 32px 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
}
.legal-page p,
.legal-page li {
  color: var(--text-2);
  font-size: 0.95rem;
}
.legal-page ul {
  padding-left: 1.25rem;
  margin: 0 0 16px;
}
.legal-page li { margin-bottom: 8px; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  font-weight: 500;
  font-size: 0.9rem;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }

.stagger-children > * {
  opacity: 0;
}
.stagger-children.visible > * {
  opacity: 1;
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .how-inner,
  .delete-grid,
  .showcase-grid,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual-wrap {
    order: -1;
    min-height: 420px;
    margin: 0 auto;
    max-width: 360px;
  }
  .float-badge--points { left: 0; }
  .float-badge--star { right: 0; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 8px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu a:not(.btn) {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-cta { margin-top: 8px; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .feature-grid { grid-template-columns: 1fr; }
  .download-card { padding: 32px 24px; }
  .footer-nav { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .float-badge { display: none; }
  .hero-visual-wrap { min-height: 380px; }
  .download-deco { display: none; }
}