/* ===== Tokens ===== */
:root {
  --accent: #f47920;
  --accent-hover: #e06810;
  --accent-subtle: rgba(244, 121, 32, 0.10);

  --bg: #ffffff;
  --bg-alt: #f8f8fa;
  --surface: #ffffff;
  --surface-2: #f0f0f3;
  --surface-3: #e8e8ec;

  --text-1: #111117;
  --text-2: #555560;
  --text-3: #888892;

  --border: #e2e2e8;
  --border-accent: var(--accent);

  --radius: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #f9923e;
    --accent-hover: #ffa85c;
    --accent-subtle: rgba(249, 146, 62, 0.12);

    --bg: #0e0e12;
    --bg-alt: #15151a;
    --surface: #1a1a22;
    --surface-2: #24242e;
    --surface-3: #2e2e3a;

    --text-1: #ededf0;
    --text-2: #a0a0aa;
    --text-3: #6a6a75;

    --border: #2a2a35;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
  }
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ===== Layout ===== */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}
.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-header p {
  font-size: 1.1rem;
  color: var(--text-2);
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.9rem;
  color: var(--text-2);
}
.nav-links a:hover { color: var(--text-1); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-1);
  cursor: pointer;
  padding: 4px;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 20px 24px 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  color: var(--text-2);
}
.mobile-menu.open { display: flex; }
.mobile-menu a:hover { color: var(--text-1); }

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); }
.btn:active { transform: scale(0.98); }

.btn-outline {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  background: var(--surface-2);
  border-color: var(--text-3);
}

.btn-sm { padding: 7px 16px; font-size: 0.85rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }

.btn-white {
  background: #fff;
  color: var(--accent);
}
.btn-white:hover { background: #f0f0f3; }

/* ===== Hero ===== */
.hero {
  padding: 100px 0 60px;
  text-align: center;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-subtle);
  border-radius: 20px;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-sub {
  max-width: 580px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
  color: var(--text-2);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Demo / Slack mockup ===== */
.demo {
  padding: 0 0 80px;
}
.slack-mock {
  max-width: 640px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--surface);
}
.slack-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.slack-channel {
  font-weight: 600;
  font-size: 0.9rem;
}
.slack-messages {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.slack-msg {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.slack-avatar {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.avatar-user {
  background: #6366f1;
  color: #fff;
}
.avatar-bot {
  background: var(--accent);
}
.slack-msg-meta {
  font-size: 0.85rem;
  margin-bottom: 4px;
}
.slack-msg-meta span {
  color: var(--text-3);
  font-size: 0.75rem;
  margin-left: 4px;
}
.slack-app-badge {
  display: inline-block;
  padding: 1px 5px;
  font-size: 0.6rem !important;
  background: var(--surface-2);
  border-radius: 3px;
  font-weight: 700;
  color: var(--text-3) !important;
  vertical-align: middle;
  letter-spacing: 0.03em;
}
.slack-msg-text {
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.85rem;
  padding: 4px 8px;
  background: var(--surface-2);
  border-radius: 4px;
  display: inline-block;
  color: var(--text-2);
}
.slack-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 16px;
  margin-top: 6px;
}
.slack-product {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 14px;
}
.slack-product-img {
  flex-shrink: 0;
}
.slack-product-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 2px;
}
.slack-product-price {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}
.slack-product-rating {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 2px;
}
.slack-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.slack-btn {
  padding: 6px 16px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  cursor: default;
}
.slack-btn-approve {
  background: #2ea44f;
  color: #fff;
}
.slack-btn-reject {
  background: var(--surface-2);
  color: var(--text-2);
}
.slack-disclosure {
  font-size: 0.7rem;
  color: var(--text-3);
  font-style: italic;
}

/* ===== Features ===== */
.features {
  padding: 100px 0;
  background: var(--bg-alt);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--text-3);
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-subtle);
  border-radius: 10px;
  color: var(--accent);
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.6;
}

@media (max-width: 820px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* ===== How it works ===== */
.how-it-works {
  padding: 100px 0;
}
.steps {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.step-number {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-subtle);
  border-radius: 50%;
}
.step-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.step-content p {
  color: var(--text-2);
  font-size: 0.95rem;
}

/* ===== Retailers ===== */
.retailers {
  padding: 100px 0;
  background: var(--bg-alt);
}
.retailer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}
.retailer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}
.retailer-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-subtle);
  border-radius: 14px;
}
.retailer-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.retailer-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.6;
}
@media (max-width: 520px) {
  .retailer-grid { grid-template-columns: 1fr; }
}

/* ===== Pricing ===== */
.pricing {
  padding: 100px 0;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
}
.pricing-card-featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
  position: relative;
}
.pricing-tier {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 12px;
}
.pricing-price {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.pricing-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-3);
}
.pricing-features {
  text-align: left;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-2);
  padding-left: 24px;
  position: relative;
}
.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-subtle);
  border: 2px solid var(--accent);
}
@media (max-width: 520px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

/* ===== CTA ===== */
.cta {
  padding: 100px 0;
  background: linear-gradient(135deg, #f47920, #e06010);
  color: #fff;
  text-align: center;
}
.cta h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.cta p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Footer ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}
.footer-links {
  display: flex;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--text-3);
}
.footer-links a:hover { color: var(--text-1); }
.footer-copy {
  font-size: 0.8rem;
  color: var(--text-3);
}
@media (max-width: 520px) {
  .footer-inner { flex-direction: column; text-align: center; }
}