:root {
  --stone-50: #fafaf9;
  --stone-100: #f5f5f4;
  --stone-200: #e7e5e4;
  --stone-300: #d6d3d1;
  --stone-400: #a8a29e;
  --stone-500: #78716c;
  --stone-600: #57534e;
  --stone-700: #44403c;
  --stone-800: #292524;
  --stone-900: #1c1917;
  --accent: #b45309;
  --accent-light: #d97706;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--stone-800);
  background: var(--stone-50);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

nav .logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--stone-800);
  text-decoration: none;
  letter-spacing: -0.01em;
}

nav .nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav .nav-links a {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--stone-500);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color 0.3s;
}

nav .nav-links a:hover {
  color: var(--stone-800);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 8rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(180, 83, 9, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-pin {
  width: 48px;
  height: 48px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeDown 1s 0.2s ease forwards;
}

.hero-pin circle {
  fill: var(--accent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 400;
  color: var(--stone-900);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 1s 0.4s ease forwards;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--stone-500);
  max-width: 440px;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 1s 0.6s ease forwards;
}

.hero .app-store-badge {
  display: inline-block;
  transition: transform 0.2s, opacity 0.2s;
  opacity: 0;
  animation: fadeUp 1s 0.8s ease forwards;
}

.hero .app-store-badge:hover {
  transform: translateY(-1px);
  opacity: 0.85;
}

.hero .app-store-badge svg {
  display: block;
}

/* ── SECTION SHARED ── */
section {
  padding: 7rem 2rem;
}

.container {
  max-width: 720px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  color: var(--stone-900);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 2rem;
}

/* ── HOW IT WORKS ── */
#how-it-works {
  background: var(--stone-100);
  border-top: 1px solid var(--stone-200);
  border-bottom: 1px solid var(--stone-200);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3rem;
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--stone-300);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--stone-700);
  margin-bottom: 1.25rem;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--stone-800);
  margin-bottom: 0.6rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--stone-500);
  line-height: 1.6;
}

/* ── PHILOSOPHY ── */
#philosophy .philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.philosophy-card {
  padding: 1.75rem;
  border: 1px solid var(--stone-200);
  border-radius: 12px;
  background: white;
}

.philosophy-card .card-no {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--stone-400);
  margin-bottom: 0.75rem;
}

.philosophy-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--stone-800);
  margin-bottom: 0.5rem;
}

.philosophy-card p {
  font-size: 0.85rem;
  color: var(--stone-500);
  line-height: 1.6;
}

/* ── PRIVACY ── */
#privacy {
  background: var(--stone-900);
  color: var(--stone-300);
}

#privacy .section-title {
  color: var(--stone-50);
}

#privacy h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--stone-100);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

#privacy h3:first-of-type {
  margin-top: 0;
}

#privacy p, #privacy li {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--stone-400);
}

#privacy ul {
  list-style: none;
  padding: 0;
}

#privacy ul li {
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: 0.3rem;
}

#privacy ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--stone-600);
}

.privacy-update {
  font-size: 0.8rem;
  color: var(--stone-600);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--stone-700);
}

/* ── SUPPORT ── */
#support {
  border-top: 1px solid var(--stone-200);
}

#support p {
  font-size: 0.95rem;
  color: var(--stone-500);
  margin-bottom: 1.5rem;
}

.support-email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 400;
  color: var(--accent);
  text-decoration: none;
  padding: 0.7rem 1.5rem;
  border: 1.5px solid var(--accent);
  border-radius: 100px;
  transition: background 0.3s, color 0.3s;
}

.support-email:hover {
  background: var(--accent);
  color: white;
}

/* ── FOOTER ── */
footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--stone-200);
}

footer p {
  font-size: 0.8rem;
  color: var(--stone-400);
}

footer a {
  color: var(--stone-500);
  text-decoration: none;
}

footer a:hover {
  color: var(--stone-700);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 680px) {
  nav { padding: 1rem 1.5rem; }
  nav .nav-links { gap: 1.25rem; }
  nav .nav-links a { font-size: 0.8rem; }

  section { padding: 5rem 1.5rem; }

  .steps {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  #philosophy .philosophy-grid {
    grid-template-columns: 1fr;
  }
}