/* SECTIONS */
.section { padding: 72px 2.5rem; }
.s-dark  { background: var(--black); color: var(--white); }
.s-white { background: var(--white); color: var(--black); }
.section-tag { display: block; font-size: 10px; font-weight: 500; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 20px; }
.s-dark .section-tag { color: var(--gray-mid); }
.s-white .section-tag { color: var(--gray-mid); }
.section-h { font-family: var(--font-serif); font-weight: 700; font-size: 28px; letter-spacing: -0.4px; line-height: 1.2; margin-bottom: 8px; }
.section-rule { width: 32px; height: 2px; background: var(--black); margin: 16px 0 28px; }
.s-dark .section-rule { background: var(--white); }
.section-body { font-size: 14px; line-height: 1.75; color: #666; max-width: 520px; }
.s-dark .section-body { color: rgba(255,255,255,0.45); }


/* PRIMARY BUTTON — máximo contraste, efecto tridimensional sutil */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--white); color: var(--black);
  font-family: var(--font-sans); font-weight: 700; font-size: 15px;
  border: none; padding: 15px 32px; cursor: pointer; width: fit-content;
  letter-spacing: 0.3px; text-transform: uppercase;
  box-shadow: 0 4px 0 rgba(255,255,255,0.25);
  transition: transform .12s, box-shadow .12s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 0 rgba(255,255,255,0.2); }
.btn-primary:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(255,255,255,0.2); }

.hero-note { font-size: 14px; color: rgba(255,255,255,0.35); letter-spacing: 0.3px; margin-top: 12px; }


/* CTA BAND BUTTON — invertido: blanco sobre negro, con borde y efecto lift */
.cta-band-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--white); color: var(--black);
  font-family: var(--font-sans); font-weight: 700; font-size: 14px;
  border: 2px solid var(--white); padding: 16px 40px; cursor: pointer;
  letter-spacing: 0.5px; text-transform: uppercase;
  box-shadow: 0 4px 0 rgba(255,255,255,0.15);
  transition: transform .12s, box-shadow .12s, background .12s, color .12s;
}
.cta-band-btn:hover { background: transparent; color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 0 rgba(255,255,255,0.1); }
.cta-band-btn:active { transform: translateY(1px); box-shadow: none; }
.cta-band-note { font-size: 11px; color: rgba(255,255,255,0.25); letter-spacing: 0.3px; }


/* FORM BUTTON — negro total, hover con borde y lift */
.fbtn {
  width: 100%; background: var(--black); color: var(--white);
  font-family: var(--font-sans); font-weight: 700; font-size: 14px;
  border: 2px solid var(--black); padding: 14px; cursor: pointer; margin-top: 8px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  letter-spacing: 0.5px; text-transform: uppercase;
  box-shadow: 0 3px 0 rgba(0,0,0,0.3);
  transition: transform .12s, box-shadow .12s;
}
.fbtn:hover { transform: translateY(-2px); box-shadow: 0 5px 0 rgba(0,0,0,0.25); }
.fbtn:active { transform: translateY(1px); box-shadow: none; }
.fbtn:disabled { background: var(--gray-mid); border-color: var(--gray-mid); cursor: not-allowed; box-shadow: none; transform: none; }
.field-error { font-size: 11px; color: #c0392b; margin-top: 4px; display: none; }
.field-error.show { display: block; }
.form-success { display: none; text-align: center; padding: 20px 0; }
.fs-icon { width: 60px; height: 60px; background: var(--offwhite); border: 2px solid var(--black); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.fs-icon i { font-size: 26px; color: var(--black); }
.fs-t { font-family: var(--font-serif); font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.fs-b { font-size: 13px; color: var(--gray-mid); margin-bottom: 24px; line-height: 1.7; }
.calendly-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--black); color: var(--white); font-family: var(--font-sans); font-weight: 700; font-size: 12px; border: 2px solid var(--black); padding: 13px 28px; cursor: pointer; text-decoration: none; letter-spacing: 0.5px; text-transform: uppercase; transition: background .15s, color .15s; }
.calendly-btn:hover { background: var(--white); color: var(--black); }
.send-error { display: none; background: #fdf0ef; border: 1px solid #e8b4b0; padding: 12px 16px; margin-top: 12px; font-size: 13px; color: #8b2c2c; line-height: 1.5; }
.send-error.show { display: block; }