/* ============================================================
   fengtalk.ai Brand System
   Colors: Cream #F2F0E6 · Charcoal #1A1A1A
   Fonts:  Playfair Display Italic (feng) · Montserrat Bold (talk.ai)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@1,400;1,700&family=Montserrat:wght@400;600;700;800&display=swap');

:root {
  /* Brand colors */
  --ft-cream:    #F2F0E6;
  --ft-charcoal: #1A1A1A;
  --ft-charcoal-80: rgba(26,26,26,0.8);
  --ft-charcoal-40: rgba(26,26,26,0.4);
  --ft-charcoal-10: rgba(26,26,26,0.06);

  /* Accent (keep existing green for data platform CTA) */
  --ft-green:    #10b981;

  /* Typography */
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ── Logo mark ─────────────────────────────────────────────── */
.ft-logo {
  display: inline-flex;
  align-items: center;
  gap: 0;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.ft-logo .feng {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  color: inherit;
}

.ft-logo .talkai {
  font-family: var(--font-sans);
  font-style: normal;
  font-weight: 800;
  color: inherit;
}

/* Sizes */
.ft-logo-sm  { font-size: 18px; }
.ft-logo-md  { font-size: 24px; }
.ft-logo-lg  { font-size: 36px; }
.ft-logo-xl  { font-size: 48px; }

/* Themes */
.ft-logo-dark  { color: var(--ft-charcoal); }
.ft-logo-light { color: var(--ft-cream); }

/* ── Icon mark (square favicon-style) ─────────────────────── */
.ft-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ft-charcoal);
  border-radius: 20%;
  flex-shrink: 0;
}

.ft-icon .feng {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  color: var(--ft-cream);
  line-height: 1;
}

.ft-icon-sm  { width: 28px; height: 28px; border-radius: 6px; }
.ft-icon-sm  .feng { font-size: 18px; }
.ft-icon-md  { width: 40px; height: 40px; border-radius: 9px; }
.ft-icon-md  .feng { font-size: 26px; }
.ft-icon-lg  { width: 64px; height: 64px; border-radius: 14px; }
.ft-icon-lg  .feng { font-size: 42px; }

/* ── Typography ────────────────────────────────────────────── */
.ft-h1 {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(28px, 5vw, 48px);
  color: var(--ft-charcoal);
  line-height: 1.15;
}

.ft-h2 {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(20px, 3vw, 32px);
  color: var(--ft-charcoal);
  line-height: 1.25;
}

.ft-body {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  color: var(--ft-charcoal-80);
  line-height: 1.7;
}

.ft-caption {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ft-charcoal-40);
}

/* ── Tagline ───────────────────────────────────────────────── */
.ft-tagline {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ft-charcoal-40);
}

/* ── Buttons ───────────────────────────────────────────────── */
.ft-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ft-charcoal);
  color: var(--ft-cream);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
}
.ft-btn-primary:hover { opacity: 0.85; }

.ft-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--ft-charcoal);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  padding: 11px 27px;
  border-radius: 8px;
  border: 2px solid var(--ft-charcoal);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}
.ft-btn-outline:hover { background: var(--ft-charcoal); color: var(--ft-cream); }