:root {
  --bg-primary: #0a0f0d;
  --bg-secondary: #111916;
  --bg-card: #151f1a;
  --fg-primary: #e8efe9;
  --fg-secondary: #8fa898;
  --fg-muted: #5a7565;
  --accent: #25d366;
  --accent-dim: #1ba34d;
  --accent-glow: rgba(37, 211, 102, 0.15);
  --gradient-accent: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 12px;
  --max-w: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ── NAV ── */
.nav {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--fg-primary);
  letter-spacing: -0.5px;
}

.nav-brand span {
  color: var(--accent);
}

.nav-tag {
  font-size: 13px;
  color: var(--fg-muted);
  border: 1px solid rgba(37, 211, 102, 0.2);
  padding: 4px 12px;
  border-radius: 999px;
  font-family: var(--font-body);
}

/* ── HERO ── */
.hero {
  padding: 100px 0 80px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -300px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 24px;
  color: var(--fg-primary);
}

.hero h1 em {
  font-style: normal;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 19px;
  color: var(--fg-secondary);
  max-width: 480px;
  line-height: 1.6;
}

.hero-visual {
  position: relative;
}

.chat-mock {
  background: var(--bg-card);
  border: 1px solid rgba(37, 211, 102, 0.1);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}

.chat-mock::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(37, 211, 102, 0.2), transparent 50%);
  z-index: -1;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: #0a0f0d;
}

.chat-name {
  font-weight: 600;
  font-size: 15px;
}

.chat-status {
  font-size: 12px;
  color: var(--accent);
}

.msg {
  margin-bottom: 12px;
  padding: 12px 16px;
  border-radius: 16px;
  max-width: 85%;
  font-size: 14px;
  line-height: 1.5;
}

.msg-in {
  background: rgba(255,255,255,0.06);
  border-bottom-left-radius: 4px;
}

.msg-out {
  background: var(--accent-dim);
  color: #fff;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.msg-time {
  font-size: 11px;
  color: var(--fg-muted);
  margin-top: 4px;
}

.msg-bot-badge {
  display: inline-block;
  font-size: 10px;
  background: rgba(37, 211, 102, 0.15);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 8px;
  font-weight: 600;
}

/* ── STATS ── */
.stats {
  padding: 60px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -2px;
}

.stat-label {
  font-size: 15px;
  color: var(--fg-secondary);
  margin-top: 4px;
}

/* ── PROBLEM ── */
.problem {
  padding: 100px 0;
}

.problem-header {
  max-width: 600px;
  margin-bottom: 60px;
}

.section-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.pain-card {
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s;
}

.pain-card:hover {
  border-color: rgba(37, 211, 102, 0.2);
}

.pain-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.pain-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.pain-card p {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* ── SERVICES ── */
.services {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.services-header {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 60px;
}

.services-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.services-header p {
  color: var(--fg-secondary);
  font-size: 17px;
}

.services-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-item {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.2s, border-color 0.3s;
}

.service-item:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 211, 102, 0.15);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 22px;
}

.service-item h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-item p {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.55;
}

/* ── CLOSING ── */
.closing {
  padding: 120px 0;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  position: relative;
}

.closing p {
  font-size: 19px;
  color: var(--fg-secondary);
  max-width: 520px;
  margin: 0 auto;
  position: relative;
}

/* ── FOOTER ── */
.footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
  text-align: center;
}

.footer p {
  font-size: 13px;
  color: var(--fg-muted);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

/* ── NAV LINKS ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 15px;
  color: var(--fg-secondary);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 8px;
  transition: color 0.2s;
}

.nav-link:hover { color: var(--fg-primary); }

.nav-link-cta {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(37, 211, 102, 0.25);
  font-weight: 600;
}

.nav-link-cta:hover {
  background: rgba(37, 211, 102, 0.22);
  color: var(--accent);
}

/* ── BUTTONS ── */
.btn-primary {
  display: inline-block;
  background: var(--gradient-accent);
  color: #0a0f0d;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--fg-secondary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.1);
  transition: color 0.2s, border-color 0.2s;
}

.btn-ghost:hover {
  color: var(--fg-primary);
  border-color: rgba(255,255,255,0.2);
}

/* ── HERO ACTIONS ── */
.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 36px;
  flex-wrap: wrap;
}

/* ── DEMOS ── */
.demos {
  padding: 100px 0;
}

.demos-header {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 56px;
}

.demos-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.demos-header p {
  color: var(--fg-secondary);
  font-size: 17px;
}

.demo-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.demo-tab {
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--fg-secondary);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 24px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}

.demo-tab:hover {
  color: var(--fg-primary);
  border-color: rgba(37, 211, 102, 0.2);
}

.demo-tab.active {
  background: var(--accent-glow);
  border-color: rgba(37, 211, 102, 0.35);
  color: var(--accent);
  font-weight: 600;
}

.demo-panel { display: none; }
.demo-panel.active { display: block; }

.demo-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}

.demo-problem {
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 28px;
}

.demo-problem-label,
.demo-solution-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--fg-muted);
  margin-bottom: 12px;
}

.demo-problem h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.demo-problem p {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.6;
}

.demo-solution {
  margin-bottom: 28px;
}

.demo-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 14px;
}

.demo-features li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.demo-check {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}

.demo-features strong {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.demo-features span {
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.5;
}

.demo-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.demo-result-item {
  background: var(--bg-card);
  border: 1px solid rgba(37, 211, 102, 0.1);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
}

.demo-result-number {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}

.demo-result-label {
  font-size: 12px;
  color: var(--fg-secondary);
  margin-top: 4px;
  line-height: 1.4;
}

.demo-chat-label {
  font-size: 12px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
  margin-bottom: 14px;
}

.demo-chat-mock {
  position: sticky;
  top: 24px;
}

/* ── PRICING ── */
.pricing {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.pricing-header {
  text-align: center;
  max-width: 520px;
  margin: 0 auto 60px;
}

.pricing-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 14px;
}

.pricing-header p {
  color: var(--fg-secondary);
  font-size: 17px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative;
  transition: border-color 0.3s;
}

.pricing-card:hover {
  border-color: rgba(37, 211, 102, 0.2);
}

.pricing-featured {
  border-color: rgba(37, 211, 102, 0.3);
  background: linear-gradient(160deg, rgba(37,211,102,0.06) 0%, var(--bg-card) 60%);
}

.pricing-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--fg-muted);
  background: rgba(255,255,255,0.05);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.featured-badge {
  background: var(--accent-glow);
  color: var(--accent);
}

.pricing-tier {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-description {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.55;
  margin-bottom: 24px;
  min-height: 44px;
}

.pricing-setup {
  margin-bottom: 6px;
}

.pricing-setup-amount {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--fg-primary);
  letter-spacing: -1px;
}

.pricing-setup-label {
  font-size: 13px;
  color: var(--fg-muted);
  margin-left: 6px;
}

.pricing-retainer {
  margin-bottom: 28px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.pricing-retainer-amount {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
}

.pricing-retainer-period {
  font-size: 14px;
  color: var(--fg-muted);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--fg-secondary);
}

.pricing-features .check {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-cta {
  width: 100%;
  text-align: center;
  padding: 13px 20px;
}

.pricing-note {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-primary);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 36px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-note-icon { font-size: 28px; flex-shrink: 0; }

.pricing-note p {
  font-size: 15px;
  color: var(--fg-secondary);
  line-height: 1.55;
}

.pricing-note a {
  color: var(--accent);
  text-decoration: none;
}

/* ── CONTACT ── */
.contact {
  padding: 100px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--fg-secondary);
  font-size: 17px;
  line-height: 1.6;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: var(--fg-secondary);
}

.contact-detail-icon { font-size: 20px; }

.contact-detail a {
  color: var(--accent);
  text-decoration: none;
}

/* Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--fg-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(37, 211, 102, 0.4);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a7565' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-group select option {
  background: var(--bg-secondary);
  color: var(--fg-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  width: 100%;
  padding: 15px;
  font-size: 16px;
  margin-top: 4px;
}

/* Success / error states */
.contact-success {
  text-align: center;
  padding: 48px 24px;
}

.success-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.contact-success h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
}

.contact-success p {
  color: var(--fg-secondary);
  font-size: 16px;
}

.contact-error {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(255, 80, 80, 0.08);
  border: 1px solid rgba(255, 80, 80, 0.2);
  border-radius: 8px;
  font-size: 14px;
  color: #ff9999;
}

.contact-error a { color: var(--accent); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero { padding: 60px 0 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: 1fr; gap: 32px; }
  .pain-grid { grid-template-columns: 1fr; }
  .services-list { grid-template-columns: 1fr; }
  .hero h1 { letter-spacing: -1px; }
  .closing { padding: 80px 0; }
  .nav-links { gap: 4px; }
  .nav-link { padding: 5px 10px; font-size: 14px; }
  .demo-grid { grid-template-columns: 1fr; }
  .demo-results { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 28px 20px; }
  .hero-actions { flex-direction: column; }
}