/* Papier — matching smoo.link design system */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: #0a0a0a;
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ─── Nav ─── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

nav.scrolled {
  border-bottom-color: #f0f0f0;
}

.nav-inner {
  max-width: 1024px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 13px;
  color: #666;
}

.nav-links a:hover { color: #0a0a0a; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-sm { height: 36px; padding: 0 16px; font-size: 13px; }

.btn-dark {
  background: #0a0a0a;
  color: #fff;
}

.btn-dark:hover { background: #222; color: #fff; }

.btn-ghost {
  background: transparent;
  color: #666;
}

.btn-ghost:hover { color: #0a0a0a; }

.btn-outline {
  background: #fff;
  color: #0a0a0a;
  border: 1px solid #e0e0e0;
}

.btn-outline:hover { border-color: #999; }

.btn-full { width: 100%; }

/* ─── Badge ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid #e0e0e0;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

/* ─── Hero ─── */
.hero {
  position: relative;
  text-align: center;
  padding: 160px 24px 96px;
  overflow: hidden;
}

.hero-grid { display: none; }

.hero-content {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 16px;
  color: #666;
  line-height: 1.7;
  margin-bottom: 40px;
}

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

.hero-note {
  font-size: 13px;
  color: #aaa;
}

/* ─── Sections ─── */
.section {
  padding: 96px 24px;
}

.section-dark {
  background: #0a0a0a;
  color: #fff;
}

.section-inner {
  max-width: 1024px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-sub {
  font-size: 16px;
  color: #666;
  margin-top: 12px;
}

.section-dark .section-sub { color: #888; }
.section-dark a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

/* ─── Grid ─── */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ─── Cards ─── */
.card {
  padding: 28px;
  border: 1px solid #f0f0f0;
  border-radius: 16px;
  background: #fafafa;
}

.card-dark {
  background: #141414;
  border-color: #222;
}

.card-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  color: #999;
}

.card-icon svg {
  width: 36px;
  height: 36px;
}

.card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card p {
  font-size: 13px;
  color: #666;
  line-height: 1.6;
}

.card-dark p { color: #888; }

/* ─── Pricing ─── */
.pricing-card {
  padding: 40px 32px;
  border: 1px solid #f0f0f0;
  border-radius: 24px;
  display: flex;
  flex-direction: column;
}

.pricing-highlight {
  border-color: #0a0a0a;
  border-width: 2px;
}

.pricing-name {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #999;
  margin-bottom: 12px;
}

.pricing-highlight .pricing-name { color: #0a0a0a; }

.pricing-price {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.pricing-period {
  font-size: 14px;
  color: #999;
  margin-top: 4px;
  margin-bottom: 28px;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin-bottom: 32px;
  flex: 1;
}

.pricing-features li {
  font-size: 13px;
  color: #444;
  padding: 7px 0;
  padding-left: 22px;
  position: relative;
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #ccc;
}

.pricing-highlight .pricing-features li::before { color: #0a0a0a; }

.pricing-note {
  text-align: center;
  font-size: 13px;
  color: #aaa;
  margin-top: 32px;
  line-height: 1.7;
}

/* ─── Footer ─── */
footer {
  padding: 64px 24px 40px;
  border-top: 1px solid #f0f0f0;
}

.footer-inner {
  max-width: 1024px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 13px;
  color: #999;
  line-height: 1.5;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #999;
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 13px;
  color: #666;
  transition: color 0.15s;
}

.footer-col a:hover { color: #0a0a0a; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid #f0f0f0;
  font-size: 12px;
  color: #ccc;
}

/* ─── About page ─── */
.about {
  max-width: 600px;
  margin: 0 auto;
  padding: 120px 24px 60px;
}

.about-hero {
  text-align: center;
  margin-bottom: 56px;
}

.about-logo {
  margin-bottom: 20px;
  border-radius: 12px;
}

.about-hero h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.about-tagline {
  font-size: 16px;
  color: #444;
  margin-bottom: 4px;
}

.about-sub {
  font-size: 15px;
  color: #999;
  font-style: italic;
}

.about-intro {
  font-size: 16px;
  color: #444;
  margin-bottom: 48px;
  text-align: center;
}

.about-body { font-size: 14px; color: #444; line-height: 1.7; }
.about-body p { margin-bottom: 12px; }
.about-body a { color: #0a0a0a; text-decoration: underline; text-underline-offset: 2px; }

.about-section { margin-bottom: 48px; }

.about-section h2 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #999;
  margin-bottom: 16px;
}

.about-values { list-style: none; padding: 0; }

.about-values li {
  padding: 8px 0 8px 20px;
  position: relative;
  font-size: 14px;
}

.about-values li::before { content: "•"; position: absolute; left: 0; color: #ccc; }

.about-projects { display: flex; flex-direction: column; gap: 12px; }

.about-project {
  display: block;
  padding: 20px;
  background: #fafafa;
  border-radius: 12px;
  border: 1px solid #f0f0f0;
  transition: border-color 0.15s;
  text-decoration: none !important;
}

.about-project:hover { border-color: #ccc; }
.about-project strong { display: block; font-size: 14px; color: #0a0a0a; margin-bottom: 4px; }
.about-project span { font-size: 13px; color: #666; }

.about-contact { text-align: center; padding-top: 32px; border-top: 1px solid #f0f0f0; }
.about-contact p { color: #666; }

.about-email {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: #0a0a0a !important;
  margin: 12px 0;
}

.about-company { font-size: 12px; color: #ccc !important; margin-top: 8px; }

/* ─── Legal pages ─── */
.legal {
  max-width: 600px;
  margin: 0 auto;
  padding: 120px 24px 60px;
}

.legal .back {
  display: inline-block;
  font-size: 13px;
  color: #999;
  margin-bottom: 40px;
}

.legal .back:hover { color: #0a0a0a; }

.legal h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.legal .date { font-size: 13px; color: #999; margin-bottom: 40px; }

.legal .notice {
  background: #fafafa;
  padding: 16px 20px;
  border-radius: 12px;
  font-size: 13px;
  margin-bottom: 32px;
  color: #444;
  border: 1px solid #f0f0f0;
}

.legal h2 { font-size: 16px; font-weight: 600; margin-top: 36px; margin-bottom: 12px; }
.legal p { font-size: 14px; color: #444; margin-bottom: 12px; }
.legal ul { margin-bottom: 12px; padding-left: 20px; }
.legal li { font-size: 14px; color: #444; margin-bottom: 6px; }
.legal li strong { color: #0a0a0a; }
.legal a { color: #0a0a0a; text-decoration: underline; text-underline-offset: 2px; }

.legal .page-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #f0f0f0;
  font-size: 12px;
  color: #999;
}

.legal .page-footer a { color: #999; text-decoration: none; }
.legal .page-footer a:hover { color: #0a0a0a; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .hero { padding: 120px 24px 64px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .section { padding: 64px 24px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 480px) {
  .hero { padding: 100px 16px 48px; }
  .nav-inner { padding: 12px 16px; }
  .nav-links { gap: 16px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}