/* Stepple — Marketing Website */

:root {
  --color-hero-top: hsl(210, 78%, 92%);
  --color-hero-bottom: hsl(220, 52%, 80%);
  --color-accent: hsl(210, 100%, 50%);
  --color-accent-hover: hsl(210, 100%, 42%);
  --color-text: #1a1a1a;
  --color-text-muted: #555;
  --color-text-light: #888;
  --color-bg-white: #ffffff;
  --color-bg-alt: #f8f9fb;
  --color-border: #e5e7eb;
  --color-premium: hsl(45, 100%, 50%);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --max-width: 1080px;
  --section-padding: 80px 24px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-stack);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 24px;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
}

.nav-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--color-text); }

/* ── Hero ── */
.hero {
  padding: 140px 24px 100px;
  background: linear-gradient(170deg, var(--color-hero-top), var(--color-hero-bottom));
  text-align: center;
  overflow: hidden;
}

.hero-sprite {
  width: 180px;
  height: 180px;
  margin: 0 auto 32px;
  image-rendering: pixelated;
  animation: float 3s ease-in-out infinite;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.hero .subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  font-weight: 400;
}

.hero .tagline {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: 20px;
  font-style: italic;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ── CTA Button ── */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-text);
  color: #fff;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.cta-button:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta-button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ── Section basics ── */
.section {
  padding: var(--section-padding);
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: 48px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ── How It Works ── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  text-align: center;
  padding: 24px;
}

.step-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-text);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ── Features Grid ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.feature-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ── Meet the Pets ── */
.pets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 28px;
  max-width: 900px;
  margin: 0 auto;
}

.pet-card {
  text-align: center;
  transition: transform 0.3s;
}

.pet-card:hover {
  transform: scale(1.05);
}

.pet-card img {
  width: 140px;
  height: 140px;
  margin: 0 auto 12px;
  image-rendering: pixelated;
  transition: filter 0.6s;
}

.pet-card:hover img {
  filter: hue-rotate(30deg);
}

.pet-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pet-card p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  max-width: 200px;
  margin: 0 auto;
}

.pet-mystery {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.pet-mystery-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, #dde1e7, #c5cad3);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: #a0a8b4;
}

.pet-mystery h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

/* ── Stepple+ ── */
.plus-section {
  padding: var(--section-padding);
  background: linear-gradient(170deg, hsl(250, 30%, 15%), hsl(220, 35%, 12%));
  color: #fff;
}

.plus-section .section-title { color: #fff; }
.plus-section .section-subtitle { color: rgba(255, 255, 255, 0.65); }

.plus-badge {
  display: inline-block;
  background: linear-gradient(135deg, hsl(45, 100%, 55%), hsl(35, 100%, 50%));
  color: #1a1a1a;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.plus-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 700px;
  margin: 0 auto;
}

.plus-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.plus-feature-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.plus-feature h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.plus-feature p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.4;
}

/* ── Privacy Callout ── */
.privacy-callout {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.privacy-callout .shield {
  font-size: 3rem;
  margin-bottom: 16px;
}

.privacy-points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.privacy-point {
  background: var(--color-bg-alt);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* ── Footer ── */
.footer {
  padding: 48px 24px;
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover { color: #fff; }

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ── Legal pages ── */
.legal-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 100px 24px 60px;
}

.legal-page h1 { font-size: 1.8rem; margin-bottom: 8px; }
.legal-page h2 { font-size: 1.2rem; margin-top: 2em; margin-bottom: 0.5em; }
.legal-page p, .legal-page li { font-size: 0.95rem; }
.legal-page ul { padding-left: 1.4em; }
.legal-page p { margin-bottom: 0.8em; }

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 32px;
  font-size: 0.9rem;
  color: var(--color-accent);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-inner { flex-wrap: wrap; gap: 8px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 0.82rem; }

  .hero { padding: 120px 20px 70px; }
  .hero h1 { font-size: 2rem; }
  .hero .subtitle { font-size: 1.05rem; }
  .hero-sprite { width: 140px; height: 140px; }

  .steps { grid-template-columns: 1fr; gap: 16px; }
  .features-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .pets-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .plus-features { grid-template-columns: 1fr; }

  :root { --section-padding: 56px 20px; }
}

@media (max-width: 520px) {
  .nav-brand { font-size: 1rem; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 0.78rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.7rem; }
  .features-grid { grid-template-columns: 1fr; }
  .pets-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { gap: 12px; }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .hero-sprite { animation: none; }
  .pet-card, .feature-card, .cta-button { transition: none; }
  html { scroll-behavior: auto; }
}