/* ─────────────────────────────────────────
   OPENCLAW — Professional Landing CSS
   Mobile-first, conversion-focused
────────────────────────────────────────── */

:root {
  --bg:        #0a0a0f;
  --bg2:       #111118;
  --bg3:       #16161f;
  --border:    rgba(255,255,255,0.08);
  --border-hi: rgba(255,255,255,0.16);
  --text:      #f0f0f5;
  --muted:     #8888a0;
  --dim:       #55556a;
  --accent:    #6c63ff;
  --accent-hi: #8b85ff;
  --cyan:      #00e5cc;
  --green:     #22d994;
  --red:       #ff4f6d;
  --radius:    14px;
  --radius-lg: 22px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Utilities ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}
.container-narrow {
  max-width: 760px;
}
.text-center { text-align: center; }

.hi {
  background: linear-gradient(120deg, var(--accent-hi), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  color: var(--text);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 22px;
  background: var(--accent);
  color: #fff;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: var(--accent-hi); transform: translateY(-1px); }

/* ── HERO ── */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
  background: radial-gradient(ellipse 70% 50% at 50% -10%, rgba(108,99,255,0.18) 0%, transparent 70%);
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border: 1px solid var(--border-hi);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 32px;
  background: rgba(255,255,255,0.03);
}
.hero-h1 {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  max-width: 780px;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.btn-main {
  display: inline-flex;
  align-items: center;
  padding: 16px 32px;
  background: var(--accent);
  color: #fff;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 0 0 rgba(108,99,255,0);
}
.btn-main:hover {
  background: var(--accent-hi);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,99,255,0.4);
}
.btn-main-large { font-size: 1.1rem; padding: 18px 40px; }

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 24px;
  color: var(--dim);
  font-size: 0.82rem;
  font-weight: 500;
}
.trust-strip span { white-space: nowrap; }

/* ── PAIN SECTION ── */
.section-pain {
  background: var(--bg2);
  padding: 80px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.pain-col {
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg3);
}
.solution-col {
  border-color: rgba(34,217,148,0.25);
  background: rgba(34,217,148,0.04);
}
.pain-label {
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 20px;
}
.solution-label { color: var(--green); }
.pain-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pain-list li {
  font-size: 0.95rem;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
}
.pain-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
}
.solution-list li { color: var(--text); }
.solution-list li::before { content: '✓'; color: var(--green); }

/* ── SECTION SHARED ── */
.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-hi);
  margin-bottom: 16px;
}
.section-h2 {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.section-sub {
  color: var(--muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto 56px;
}

/* ── PRICING ── */
.section-pricing {
  padding: 100px 0;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: start;
}

.pricing-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.pricing-card:hover {
  border-color: var(--border-hi);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
  transform: translateY(-4px);
}

.card-featured {
  border-color: rgba(108,99,255,0.4);
  background: linear-gradient(160deg, rgba(108,99,255,0.06) 0%, var(--bg2) 100%);
  box-shadow: 0 0 0 1px rgba(108,99,255,0.15);
}
.card-enterprise {
  border-color: rgba(0,229,204,0.25);
  background: linear-gradient(160deg, rgba(0,229,204,0.04) 0%, var(--bg2) 100%);
}

.featured-badge, .enterprise-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  padding: 4px 16px;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.featured-badge {
  background: var(--accent);
  color: #fff;
}
.enterprise-badge {
  background: linear-gradient(90deg, var(--cyan), var(--green));
  color: #000;
}

.card-platform-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.tw-icon  { background: rgba(29,161,242,0.12); color: #1DA1F2; }
.yt-icon  { background: rgba(255,0,0,0.1); color: #FF0000; }
.tt-icon  { background: rgba(37,244,238,0.1); color: #25F4EE; }
.ent-icon { background: rgba(108,99,255,0.15); color: var(--accent-hi); }

.card-top { margin-bottom: 20px; }
.card-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
}
.card-tagline {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
}

.card-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
}
.price-was {
  font-size: 1rem;
  color: var(--dim);
  text-decoration: line-through;
}
.price-amount {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -1px;
  color: var(--text);
}
.price-amount-ent {
  background: linear-gradient(120deg, var(--cyan), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.price-period {
  font-size: 0.8rem;
  color: var(--dim);
}

.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}
.card-features li {
  font-size: 0.84rem;
  color: var(--muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}
.f-check {
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.btn-card {
  display: block;
  width: 100%;
  text-align: center;
  padding: 13px 16px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border-hi);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.btn-card:hover { background: rgba(255,255,255,0.07); transform: translateY(-1px); }

.btn-card-featured {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.btn-card-featured:hover { background: var(--accent-hi); }

.btn-card-ent {
  background: linear-gradient(90deg, var(--cyan), var(--green));
  color: #000;
  border-color: transparent;
  font-weight: 800;
}
.btn-card-ent:hover { filter: brightness(1.1); transform: translateY(-1px); }

.ent-note {
  margin-top: 12px;
  font-size: 0.74rem;
  color: var(--dim);
  text-align: center;
  line-height: 1.5;
}

/* ── HOW IT WORKS ── */
.section-how {
  padding: 100px 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
  text-align: left;
}
.step {
  padding: 28px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.step-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.4;
  font-variant-numeric: tabular-nums;
  margin-bottom: 14px;
}
.step h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.step p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; }

/* ── FAQ ── */
.section-faq {
  padding: 100px 0;
  text-align: center;
}
.faq-list {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}
.faq-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
}
.faq-q {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 10px;
}
.faq-a {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ── FINAL CTA ── */
.section-final-cta {
  padding: 100px 20px;
  background: radial-gradient(ellipse 60% 60% at 50% 100%, rgba(108,99,255,0.15) 0%, transparent 70%);
  border-top: 1px solid var(--border);
  text-align: center;
}
.final-h2 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 18px;
}
.final-sub {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 36px;
}

/* ── FOOTER ── */
.footer {
  padding: 40px 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.82rem;
  color: var(--dim);
}
.footer a { color: var(--muted); text-decoration: underline; }

/* ─────── MOBILE (≤ 768px) ─────── */
@media (max-width: 768px) {
  /* nav */
  .nav-inner { height: 56px; }
  .nav-logo { font-size: 1.1rem; }
  .nav-cta { padding: 8px 18px; font-size: 0.85rem; }

  /* hero */
  .hero { padding: 100px 20px 64px; }
  .hero-h1 { letter-spacing: -1.5px; }
  .hero-sub { font-size: 0.97rem; }
  .btn-main { padding: 15px 28px; font-size: 0.97rem; width: 100%; justify-content: center; }
  .btn-main-large { font-size: 1rem; }
  .trust-strip { gap: 8px 16px; font-size: 0.78rem; }

  /* pain */
  .section-pain { padding: 56px 0; }
  .pain-grid { grid-template-columns: 1fr; gap: 16px; }
  .pain-col { padding: 24px 20px; }

  /* pricing */
  .section-pricing { padding: 72px 0; }
  .pricing-grid { grid-template-columns: 1fr; gap: 16px; }
  .pricing-card { padding: 28px 20px 22px; }
  .featured-badge, .enterprise-badge { font-size: 0.68rem; padding: 4px 14px; }
  .price-amount { font-size: 2rem; }
  .btn-card { padding: 15px; font-size: 1rem; border-radius: 12px; }

  /* how */
  .section-how { padding: 72px 0; }
  .steps-grid { grid-template-columns: 1fr; gap: 16px; margin-top: 40px; }
  .step { padding: 22px 20px; }

  /* faq */
  .section-faq { padding: 72px 0; }
  .faq-item { padding: 20px; }

  /* final cta */
  .section-final-cta { padding: 72px 20px; }
  .final-h2 { font-size: 1.9rem; }
}

/* small phones */
@media (max-width: 400px) {
  .hero-h1 { font-size: 2rem; letter-spacing: -1px; }
  .hero-pill { font-size: 0.72rem; padding: 5px 12px; }
  .section-h2 { font-size: 1.75rem; }
}