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

:root {
  --black: #262424;
  --gray: #505050;
  --brand: #EFF0F0;
  --light-gray: #DEDFDF;
  --white: #FFFFFF;
  --green: #0CCD4B;
  --blue: #1977F2;
  --bg: #F7F7F7;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

/* ── Nav ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--brand);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 32px;
  height: 56px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo img { height: 40px; display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link { font-size: 14px; font-weight: 500; color: var(--gray); transition: color 0.2s; }
.nav-link:hover { color: var(--black); }
.nav-cta {
  background: var(--black); color: var(--white);
  padding: 10px 22px; border-radius: 12px;
  font-size: 14px; font-weight: 600; transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.85; }

/* ── Hero ── */
.hero {
  position: relative; overflow: hidden;
  padding: 140px 32px 0; text-align: center;
}
.hero-container {
  max-width: 787px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 32px;
}
.hero-logo {
  width: 80px; height: 80px; border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}
.hero-logo img { width: 100%; height: 100%; object-fit: cover; }
.hero-header { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.hero h1 {
  font-family: 'Roboto Serif', Georgia, serif;
  font-size: clamp(32px, 5vw, 48px); font-weight: 400;
  line-height: 130%; letter-spacing: -0.04em;
}
.hero p {
  font-size: 16px; color: var(--gray); line-height: 150%;
  max-width: 395px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.btn {
  padding: 14px 32px; border-radius: 12px;
  font-size: 15px; font-weight: 600; transition: all 0.2s; border: none; cursor: pointer;
  font-family: 'Inter', sans-serif;
}
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { opacity: 0.85; }
.invitation-badge {
  display: inline-block; padding: 12px 28px; border-radius: 12px;
  font-size: 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: #6b7280; background: #f3f4f6; border: 1px solid #e5e7eb;
  font-family: 'Inter', sans-serif;
}
.btn-secondary { background: var(--white); color: var(--black); border: 1px solid var(--light-gray); }
.btn-secondary:hover { border-color: #bbb; }

/* ── Hero visual ── */
.hero-visual {
  position: relative; width: 100%; max-width: 1280px;
  margin: 89px auto 0; padding-bottom: 72px;
}
.hero-screenshot {
  position: relative; z-index: 3;
  width: 80%; max-width: 960px; margin: 0 auto;
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.1), 0 2px 12px rgba(0,0,0,0.06);
}
.hero-screenshot img { width: 100%; display: block; border-radius: 16px; }

/* Gradient overlays */
.gradient-blue {
  position: absolute; z-index: 1;
  width: 141%; height: 100%; top: -62px;
  left: 50%; transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(25,119,242,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.gradient-secondary {
  position: absolute; z-index: 2;
  width: 112%; height: 80%; bottom: 0;
  left: 50%; transform: translateX(-50%);
  background: radial-gradient(ellipse at center bottom, rgba(25,119,242,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.gradient-white {
  position: absolute; z-index: 4;
  width: 133%; height: 60%; bottom: 0;
  left: 50%; transform: translateX(-50%);
  background: linear-gradient(to top, var(--white) 20%, transparent 100%);
  pointer-events: none;
}

/* ── Features ── */
.features {
  background: var(--bg); padding: 80px 32px;
}
.features-inner {
  max-width: 900px; margin: 0 auto; text-align: center;
}
.section-heading {
  font-family: 'Roboto Serif', Georgia, serif;
  font-size: clamp(28px, 4vw, 48px); font-weight: 400;
  line-height: 130%; letter-spacing: -0.04em; margin-bottom: 12px;
}
.section-sub {
  font-size: 16px; color: var(--gray); line-height: 150%;
  max-width: 505px; margin: 0 auto 40px;
}
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px; text-align: left;
}
@media (max-width: 768px) { .features-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .features-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--white); border-radius: 16px; padding: 28px 24px;
  border: 1px solid var(--brand);
  transition: box-shadow 0.2s;
}
.feature-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--bg); display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 16px; color: var(--black);
}
.feature-card h3 {
  font-family: 'Roboto Serif', Georgia, serif;
  font-size: 18px; font-weight: 400; letter-spacing: -0.04em;
  line-height: 140%; margin-bottom: 6px;
}
.feature-card p { font-size: 14px; color: var(--gray); line-height: 150%; }

/* ── How it works ── */
.how {
  padding: 80px 32px; background: var(--white);
}
.how-inner { max-width: 700px; margin: 0 auto; text-align: center; }
.steps { display: flex; gap: 32px; margin-top: 40px; text-align: left; }
@media (max-width: 640px) { .steps { flex-direction: column; } }
.step { flex: 1; }
.step-num {
  width: 36px; height: 36px; border-radius: 12px;
  background: var(--black); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Roboto Serif', serif; font-size: 15px; font-weight: 400;
  margin-bottom: 14px;
}
.step h3 {
  font-family: 'Roboto Serif', Georgia, serif;
  font-size: 18px; font-weight: 400; letter-spacing: -0.04em;
  margin-bottom: 6px;
}
.step p { font-size: 14px; color: var(--gray); line-height: 150%; }

/* ── Pricing ── */
.pricing { padding: 80px 32px; background: var(--bg); }
.pricing-inner { max-width: 440px; margin: 0 auto; text-align: center; }
.pricing-card {
  background: var(--white); border: 1px solid var(--brand);
  border-radius: 24px; padding: 40px 32px; margin-top: 32px;
}
.pricing-amount {
  font-family: 'Roboto Serif', Georgia, serif;
  font-size: 56px; font-weight: 400; letter-spacing: -0.04em;
}
.pricing-amount span { font-size: 18px; font-weight: 400; color: var(--gray); }
.pricing-trial {
  font-size: 14px; color: var(--green); font-weight: 600; margin: 8px 0 28px;
}
.pricing-list { list-style: none; text-align: left; margin-bottom: 28px; }
.pricing-list li {
  padding: 8px 0; font-size: 14px; color: var(--gray);
  display: flex; align-items: center; gap: 10px;
}
.pricing-list li::before {
  content: "\2713"; color: var(--green); font-weight: 700; font-size: 14px;
  flex-shrink: 0;
}
.pricing-cta {
  display: block; width: 100%; background: var(--black); color: var(--white);
  padding: 16px; border-radius: 12px; font-size: 16px; font-weight: 600;
  border: none; cursor: pointer; transition: opacity 0.2s;
  text-align: center; font-family: 'Inter', sans-serif;
}
.pricing-cta:hover { opacity: 0.85; }

/* ── FAQ ── */
.faq { padding: 80px 32px; background: var(--white); }
.faq-inner { max-width: 590px; margin: 0 auto; text-align: center; }
.faq-list { margin-top: 32px; text-align: left; }
.faq-item { border-bottom: 1px solid var(--brand); }
.faq-item:first-child { border-top: 1px solid var(--brand); }
.faq-question {
  width: 100%; background: none; border: none; cursor: pointer;
  padding: 20px 0; display: flex; align-items: center; justify-content: space-between;
  font-family: 'Inter', sans-serif; font-size: 15px; font-weight: 500;
  color: var(--black); text-align: left; gap: 16px;
}
.faq-question:hover { color: var(--gray); }
.faq-icon {
  width: 24px; height: 24px; flex-shrink: 0;
  position: relative; transition: transform 0.3s;
}
.faq-icon::before, .faq-icon::after {
  content: ''; position: absolute;
  background: var(--black); border-radius: 1px;
  transition: transform 0.3s;
}
.faq-icon::before {
  width: 14px; height: 2px; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::after {
  width: 2px; height: 14px; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.faq-item.open .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 0 20px;
  font-size: 14px; color: var(--gray); line-height: 160%;
}

/* ── Footer ── */
footer { padding: 40px 32px; text-align: center; background: var(--bg); }
.footer-text {
  font-size: 12px; color: var(--gray); line-height: 1.6;
  max-width: 560px; margin: 0 auto;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero { padding: 120px 20px 0; }
  .hero-visual { margin-top: 48px; }
  .hero-screenshot { width: 85%; }
  .features, .how, .pricing, .faq { padding: 60px 20px; }
  .nav-inner { padding: 0 20px; }
  .nav-link { display: none; }
}