/*
 * Stormfire design system — tokens and components.
 * Source of truth: Design #6 + additional-notes.md (visual refinement spec).
 * Elementor templates attach these classes via each element's "CSS Classes" field.
 */

:root {
  --sf-navy-950: #0B1424;
  --sf-navy-900: #141C2B;
  --sf-navy-800: #1C293B;
  --sf-white: #FFFFFF;
  --sf-surface-light: #F5F7FA;
  --sf-ink: #142033;
  --sf-text-secondary: #475569;
  --sf-text-on-dark: #F8FAFC;
  --sf-text-muted-dark: #C4D0DF;
  --sf-teal: #20D6C8;
  --sf-teal-hover: #1BBFB2;
  --sf-teal-dark: #087C78;
  --sf-red: #E5484D;
  --sf-border-light: #E2E8F0;
  --sf-border-dark: #344055;

  --sf-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --sf-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --sf-container: 1200px;
  --sf-gutter: 32px;
  --sf-section-y: 92px;
  --sf-radius-card: 12px;
  --sf-radius-btn: 6px;
  --sf-header-h: 74px;
  --sf-ease: 160ms ease;
}

@media (max-width: 1099px) {
  :root { --sf-gutter: 24px; --sf-section-y: 68px; }
}
@media (max-width: 767px) {
  :root { --sf-gutter: 20px; --sf-section-y: 56px; --sf-header-h: 64px; }
}
@media (max-width: 374px) {
  :root { --sf-gutter: 16px; }
}

/* ---------- Base ---------- */
html { scroll-padding-top: calc(var(--sf-header-h) + 16px); }
body {
  background: var(--sf-white);
  color: var(--sf-ink);
  font-family: var(--sf-font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body h1, body h2, body h3, body h4 { font-family: var(--sf-font); color: inherit; }
body a { color: var(--sf-teal-dark); }
body a:focus-visible,
body button:focus-visible,
body input:focus-visible,
body select:focus-visible,
body textarea:focus-visible {
  outline: 2px solid var(--sf-teal);
  outline-offset: 2px;
}
.sf-dark a:focus-visible { outline-color: var(--sf-teal); }
.sf-mono { font-family: var(--sf-mono); font-variant-numeric: tabular-nums lining-nums; }
.sf-visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ---------- Layout ---------- */
.sf-section { padding-block: var(--sf-section-y); }
.sf-section--light { background: var(--sf-surface-light); }
.sf-section--white { background: var(--sf-white); }
.sf-section--dark { background: var(--sf-navy-900); color: var(--sf-text-on-dark); }
.sf-container {
  width: 100%;
  max-width: calc(var(--sf-container) + 2 * var(--sf-gutter));
  margin-inline: auto;
  padding-inline: var(--sf-gutter);
}
/* Elementor boxed containers: keep inner width and gutters consistent with the spec */
.e-con.sf-section > .e-con-inner,
.e-con.sf-band > .e-con-inner {
  max-width: calc(var(--sf-container) + 2 * var(--sf-gutter));
  padding-inline: var(--sf-gutter);
}

/* ---------- Type ---------- */
.sf-eyebrow,
.sf-eyebrow .elementor-heading-title {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sf-font);
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--sf-teal-dark);
}
.sf-eyebrow:not(.elementor-widget)::before,
.sf-eyebrow .elementor-heading-title::before {
  content: ""; width: 6px; height: 6px; background: currentColor; flex: none;
}
.elementor-widget.sf-eyebrow { display: block; }
.sf-dark .sf-eyebrow,
.sf-dark .sf-eyebrow .elementor-heading-title { color: var(--sf-teal); }

.sf-h1, .sf-h1 .elementor-heading-title {
  font-size: clamp(32px, 3vw + 10px, 50px); font-weight: 700; line-height: 1.12;
  letter-spacing: -0.02em; max-width: 690px; color: var(--sf-text-on-dark);
}
.sf-h2, .sf-h2 .elementor-heading-title {
  font-size: clamp(27px, 1.6vw + 18px, 36px); font-weight: 700; line-height: 1.2;
  letter-spacing: -0.015em; color: var(--sf-ink);
}
.sf-dark .sf-h2, .sf-dark .sf-h2 .elementor-heading-title { color: var(--sf-text-on-dark); }
.sf-h3, .sf-h3 .elementor-heading-title {
  font-size: clamp(19px, 0.4vw + 17px, 22px); font-weight: 650; line-height: 1.3; color: var(--sf-ink);
}
.sf-lead, .sf-lead p { font-size: 17px; line-height: 1.65; color: var(--sf-text-secondary); max-width: 68ch; }
.sf-dark .sf-lead, .sf-dark .sf-lead p { color: var(--sf-text-muted-dark); font-size: 18px; max-width: 60ch; }
.sf-section-head { margin-bottom: 32px; }
.sf-section-head > * + * { margin-top: 12px; }

/* ---------- Buttons ---------- */
.sf-btn,
.sf-btn .elementor-button,
.elementor-widget-button.sf-btn--primary .elementor-button,
.elementor-widget-button.sf-btn--ghost .elementor-button,
.elementor-widget-button.sf-btn--ink .elementor-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px;
  border-radius: var(--sf-radius-btn); border: 1px solid transparent;
  font-family: var(--sf-font); font-size: 15px; font-weight: 600; line-height: 1;
  text-decoration: none; cursor: pointer;
  transition: background-color var(--sf-ease), border-color var(--sf-ease), color var(--sf-ease);
}
.sf-btn--primary,
.elementor-widget-button.sf-btn--primary .elementor-button,
.elementor-field-type-submit .elementor-button,
.sf-form .elementor-button {
  background: var(--sf-teal); color: var(--sf-navy-950); border-color: var(--sf-teal);
}
.sf-btn--primary:hover,
.elementor-widget-button.sf-btn--primary .elementor-button:hover,
.elementor-field-type-submit .elementor-button:hover,
.sf-form .elementor-button:hover {
  background: var(--sf-teal-hover); border-color: var(--sf-teal-hover); color: var(--sf-navy-950);
}
.sf-btn--ghost,
.elementor-widget-button.sf-btn--ghost .elementor-button {
  background: transparent; color: var(--sf-text-on-dark); border-color: #5A6A82;
}
.sf-btn--ghost:hover,
.elementor-widget-button.sf-btn--ghost .elementor-button:hover {
  border-color: var(--sf-text-on-dark); color: var(--sf-white); background: rgba(255,255,255,0.04);
}
.sf-btn--ink,
.elementor-widget-button.sf-btn--ink .elementor-button {
  background: var(--sf-white); color: var(--sf-ink); border-color: var(--sf-border-light);
}
.sf-btn--ink:hover,
.elementor-widget-button.sf-btn--ink .elementor-button:hover { border-color: var(--sf-ink); color: var(--sf-ink); }
.sf-actions { display: flex; flex-wrap: wrap; gap: 14px; }
@media (max-width: 767px) {
  .sf-actions { flex-direction: column; align-items: stretch; }
  .sf-actions .elementor-widget-button,
  .sf-actions .elementor-button,
  .sf-actions .sf-btn { width: 100%; }
}

/* Inline action link (card footers) */
.sf-link {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px;
  font-weight: 600; font-size: 15px; color: var(--sf-ink); text-decoration: none;
}
.sf-link::after { content: "→"; transition: transform var(--sf-ease); }
.sf-link:hover { color: var(--sf-teal-dark); }
.sf-link:hover::after { transform: translateX(3px); }

/* ---------- Header ---------- */
.sf-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--sf-navy-950); color: var(--sf-text-on-dark);
  border-bottom: 1px solid transparent;
  transition: border-color var(--sf-ease);
}
.admin-bar .sf-header { top: 32px; }
@media (max-width: 782px) { .admin-bar .sf-header { top: 46px; } }
.sf-header.is-scrolled { border-bottom-color: var(--sf-border-dark); }
.sf-header > .e-con-inner { min-height: var(--sf-header-h); align-items: center; }
.sf-brand { display: inline-flex; align-items: center; gap: 14px; text-decoration: none; color: var(--sf-text-on-dark); flex-wrap: wrap; }
.sf-brand .sf-brand__logo { display: block; height: 54px; width: auto; max-width: none; }
@media (max-width: 767px) { .sf-brand .sf-brand__logo { height: 44px; } }
.sf-brand__tag { font-size: 13px; font-weight: 500; color: var(--sf-text-muted-dark); }
@media (max-width: 1024px) { .sf-brand__tag { display: none; } }

.sf-nav .elementor-nav-menu--main .elementor-item {
  font-size: 15px; font-weight: 500; color: var(--sf-text-muted-dark);
  padding-inline: 14px; min-height: 44px; display: flex; align-items: center;
}
.sf-nav .elementor-nav-menu--main .elementor-item:hover,
.sf-nav .elementor-nav-menu--main .elementor-item.elementor-item-active { color: var(--sf-text-on-dark); }
.sf-nav .elementor-nav-menu--main .elementor-item::after { background-color: var(--sf-teal) !important; height: 2px !important; }
.sf-nav .elementor-menu-toggle { color: var(--sf-text-on-dark); background: transparent; min-width: 44px; min-height: 44px; }
.sf-nav .elementor-nav-menu--dropdown { background: var(--sf-navy-950); border-top: 1px solid var(--sf-border-dark); }
.sf-nav .elementor-nav-menu--dropdown a { color: var(--sf-text-on-dark) !important; min-height: 48px; font-size: 16px; }
.sf-nav .elementor-nav-menu--dropdown a:hover,
.sf-nav .elementor-nav-menu--dropdown a.elementor-item-active { background: var(--sf-navy-800) !important; color: var(--sf-white) !important; }
.sf-header .elementor-widget-button.sf-btn--primary .elementor-button { min-height: 44px; padding: 0 18px; font-size: 14px; }
@media (max-width: 767px) { .sf-header-cta { display: none; } }

/* ---------- Hero ---------- */
.sf-hero { background: var(--sf-navy-900); color: var(--sf-text-on-dark); padding-top: 80px; padding-bottom: 88px; }
.sf-hero__grid { display: grid; grid-template-columns: 55fr 45fr; gap: 48px; align-items: center; }
@media (max-width: 1023px) { .sf-hero__grid { grid-template-columns: 1fr; } }
@media (max-width: 767px) { .sf-hero { padding-top: 48px; padding-bottom: 56px; } }

.sf-citations {
  margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--sf-border-dark);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px;
  font-size: 13px;
}
.sf-citations__label { color: var(--sf-text-muted-dark); font-weight: 500; }
.sf-citations a {
  font-family: var(--sf-mono); font-size: 14px; color: var(--sf-text-on-dark);
  text-decoration: none; border-bottom: 1px solid var(--sf-border-dark); padding-block: 4px;
}
.sf-citations a:hover { border-bottom-color: var(--sf-teal); }

/* Process schematic panel */
.sf-schematic {
  background: var(--sf-navy-800); border: 1px solid var(--sf-border-dark);
  border-radius: var(--sf-radius-card); padding: 22px; color: var(--sf-text-muted-dark);
}
.sf-schematic__head { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; margin-bottom: 14px; }
.sf-schematic__head strong { color: var(--sf-text-on-dark); font-weight: 600; }
.sf-schematic svg { display: block; width: 100%; height: auto; }
.sf-schematic__caption { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--sf-border-dark); font-size: 14px; line-height: 1.55; }
.sf-schematic__steps { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.sf-schematic__steps li { display: grid; grid-template-columns: 26px 1fr; gap: 8px; font-size: 14px; line-height: 1.5; }
.sf-schematic__steps span { font-family: var(--sf-mono); color: var(--sf-teal); }
.sf-schematic--mobile { display: none; }
@media (max-width: 520px) {
  .sf-schematic svg { display: none; }
  .sf-schematic--mobile { display: grid; }
}

/* ---------- Cards ---------- */
.sf-card {
  background: var(--sf-white); border: 1px solid var(--sf-border-light);
  border-radius: var(--sf-radius-card); padding: 24px;
}
.sf-patents { display: grid; gap: 20px; }
.sf-patent-card { padding: 0; display: flex; flex-direction: column; }
.sf-patent-card__top,
.sf-patent-card__body,
.sf-patent-card__foot { padding-inline: 26px; }
.sf-patent-card__top {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 16px;
  padding-top: 22px;
}
.sf-patent-card__id { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.sf-patent-no { font-family: var(--sf-mono); font-size: 16px; font-weight: 700; color: var(--sf-ink); letter-spacing: 0.01em; }
.sf-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px;
  border: 1px solid var(--sf-border-light); border-radius: 4px; background: var(--sf-surface-light);
  font-size: 12.5px; font-weight: 600; color: var(--sf-text-secondary);
}
.sf-chip--active::before { content: ""; width: 6px; height: 6px; background: var(--sf-teal-dark); }
.sf-patent-card__meta { font-size: 13.5px; color: var(--sf-text-secondary); }
.sf-patent-card__body { padding-block: 14px 20px; }
.sf-patent-card__title { margin: 0 0 8px; font-size: clamp(19px, 0.4vw + 17px, 22px); font-weight: 650; line-height: 1.3; color: var(--sf-ink); }
.sf-patent-card__official { margin: 0 0 10px; font-size: 14px; color: var(--sf-text-secondary); font-style: italic; max-width: 90ch; }
.sf-patent-card__summary { margin: 0; font-size: 15.5px; line-height: 1.65; color: #334155; max-width: 85ch; }
.sf-patent-card__foot {
  margin-top: auto; border-top: 1px solid var(--sf-border-light);
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 4px 16px;
  padding-block: 6px;
}
.sf-patent-card__note { font-size: 13.5px; color: var(--sf-text-secondary); }
@media (max-width: 767px) {
  .sf-patent-card__top, .sf-patent-card__body, .sf-patent-card__foot { padding-inline: 20px; }
  .sf-patent-card__foot { flex-direction: column; align-items: flex-start; }
}

/* Licensing / info cards */
.sf-grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
@media (max-width: 1099px) { .sf-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) { .sf-grid-3 { grid-template-columns: 1fr; } }
.sf-info-card { display: flex; flex-direction: column; gap: 10px; height: 100%; }
.sf-info-card__icon {
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 1px solid var(--sf-border-light); border-radius: 8px; color: var(--sf-teal-dark);
}
.sf-info-card__icon svg { width: 22px; height: 22px; }
.sf-info-card__label { font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--sf-teal-dark); margin-top: 6px; }
.sf-info-card h3 { margin: 0; font-size: clamp(19px, 0.4vw + 17px, 21px); font-weight: 650; line-height: 1.3; color: var(--sf-ink); }
.sf-info-card p { margin: 0; font-size: 15.5px; line-height: 1.65; color: var(--sf-text-secondary); }
.sf-info-card__foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--sf-border-light); font-size: 13.5px; color: var(--sf-text-secondary); }
a.sf-info-card { text-decoration: none; transition: border-color var(--sf-ease); }
a.sf-info-card:hover { border-color: #94A3B8; }

/* ---------- Inquiry / form ---------- */
.sf-inquiry { display: grid; grid-template-columns: 40fr 60fr; gap: 48px; align-items: start; }
@media (max-width: 1023px) { .sf-inquiry { grid-template-columns: 1fr; gap: 32px; } }
.sf-note {
  margin-top: 24px; padding: 18px 20px; border: 1px solid var(--sf-border-light); border-radius: 10px;
  background: var(--sf-white); font-size: 15px; color: var(--sf-text-secondary);
}
.sf-note a { font-weight: 600; }
.sf-form-card {
  background: var(--sf-white); border: 1px solid var(--sf-border-light);
  border-radius: var(--sf-radius-card); padding: 32px;
}
@media (max-width: 767px) { .sf-form-card { padding: 22px; } }

/* Elementor Pro Form widget skin */
.sf-form .elementor-field-group { margin-bottom: 18px; }
.sf-form .elementor-field-label { font-size: 14px; font-weight: 600; color: var(--sf-ink); margin-bottom: 6px; }
.sf-form .elementor-field-textual,
.sf-form select.elementor-field {
  min-height: 48px; font-size: 16px; color: var(--sf-ink); background: var(--sf-white);
  border: 1px solid #7B8AA0; border-radius: var(--sf-radius-btn); padding: 10px 14px;
}
.sf-form textarea.elementor-field-textual { min-height: 140px; }
.sf-form .elementor-field-textual::placeholder { color: #64748B; }
.sf-form .elementor-field-textual:focus,
.sf-form select.elementor-field:focus { border-color: var(--sf-ink); box-shadow: 0 0 0 1px var(--sf-ink); outline: none; }
.sf-form .elementor-field-type-acceptance label,
.sf-form .elementor-field-subgroup label { font-size: 15px; color: var(--sf-text-secondary); }
.sf-form input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--sf-ink); }
.sf-form .elementor-field-subgroup { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.sf-form .elementor-field-subgroup .elementor-field-option { display: inline-flex; align-items: center; gap: 8px; margin: 0; min-height: 32px; }
.sf-form .elementor-field-subgroup .elementor-field-option input { margin: 0; flex: 0 0 auto; }
.sf-form .elementor-field-subgroup .elementor-field-option label { margin: 0; padding: 0; line-height: 1.2; }
.sf-form .elementor-field-type-submit .elementor-button { width: 100%; min-height: 50px; font-size: 16px; font-weight: 600; }
.sf-form .elementor-message { font-size: 15px; margin-top: 12px; }
.sf-form .elementor-message.elementor-message-success { color: var(--sf-teal-dark); }
.sf-form .elementor-message.elementor-message-danger,
.sf-form .elementor-error .elementor-field-textual { color: #B42318; border-color: #B42318; }

/* ---------- Footer ---------- */
.sf-footer { background: var(--sf-navy-950); color: var(--sf-text-muted-dark); padding-top: 60px; padding-bottom: 28px; font-size: 14.5px; }
.sf-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
@media (max-width: 767px) { .sf-footer__grid { grid-template-columns: 1fr; gap: 32px; } }
.sf-footer__brand .sf-brand { flex-direction: column; align-items: flex-start; gap: 10px; }
/* Sized by width so it can shrink inside the footer column without stretching. */
.sf-footer__brand .sf-brand .sf-brand__logo { height: auto; width: 391px; max-width: 100%; }
.sf-footer p { margin: 12px 0 0; max-width: 46ch; line-height: 1.65; }
.sf-footer h2 { margin: 0 0 12px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sf-text-on-dark); }
.sf-footer ul { list-style: none; margin: 0; padding: 0; }
.sf-footer li a { display: inline-flex; align-items: center; min-height: 36px; color: var(--sf-text-muted-dark); text-decoration: none; }
.sf-footer li a:hover { color: var(--sf-white); text-decoration: underline; text-underline-offset: 3px; }
.sf-footer a { color: var(--sf-text-on-dark); }
.sf-footer__bottom {
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--sf-border-dark);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 13.5px;
}

/* ---------- Industry tiles ---------- */
.sf-industries { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 1024px) { .sf-industries { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 420px) { .sf-industries { gap: 12px; } }
.sf-industry { position: relative; margin: 0; border-radius: var(--sf-radius-card); overflow: hidden; aspect-ratio: 4 / 5; background: var(--sf-navy-900); }
.sf-industries .sf-industry img { display: block; width: 100%; height: 100%; object-fit: cover; }
.sf-industry span {
  position: absolute; inset: auto 0 0 0; padding: 40px 16px 14px;
  background: linear-gradient(to top, rgba(11, 20, 36, 0.92), rgba(11, 20, 36, 0));
  color: var(--sf-text-on-dark); font-size: 15px; font-weight: 600; line-height: 1.3;
}

/* ---------- Single patent ---------- */
.sf-breadcrumb { font-size: 14px; color: var(--sf-text-secondary); margin-bottom: 20px; }
.sf-breadcrumb a { color: var(--sf-text-secondary); text-decoration: none; }
.sf-breadcrumb a:hover { color: var(--sf-ink); text-decoration: underline; }
.sf-record { padding: 32px; }
@media (max-width: 767px) { .sf-record { padding: 22px; } }
.sf-record__no { font-family: var(--sf-mono); font-size: 15px; font-weight: 700; color: var(--sf-teal-dark); }
.sf-record__title { margin: 10px 0 10px; font-size: clamp(28px, 1.8vw + 18px, 40px); line-height: 1.15; font-weight: 700; letter-spacing: -0.015em; color: var(--sf-ink); }
.sf-record__official { margin: 0; font-size: 16px; color: var(--sf-text-secondary); max-width: 90ch; }
.sf-meta-bar {
  margin-top: 24px; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  border: 1px solid var(--sf-border-light); border-radius: 10px; background: var(--sf-surface-light);
}
.sf-meta-bar div { padding: 14px 16px; }
.sf-meta-bar div + div { border-left: 1px solid var(--sf-border-light); }
@media (max-width: 640px) { .sf-meta-bar div + div { border-left: 0; border-top: 1px solid var(--sf-border-light); } }
.sf-meta-bar dt { font-size: 12.5px; font-weight: 600; color: var(--sf-text-secondary); }
.sf-meta-bar dd { margin: 4px 0 0; font-family: var(--sf-mono); font-size: 14.5px; color: var(--sf-ink); }

.sf-patent-layout { display: grid; grid-template-columns: minmax(0, 65fr) minmax(0, 35fr); gap: 28px; align-items: start; }
@media (max-width: 1023px) { .sf-patent-layout { grid-template-columns: 1fr; } }

/* Patent body = post content; style its native HTML so editors only write headings, lists and paragraphs */
.sf-prose > * + * { margin-top: 0; }
.sf-prose section,
.sf-prose .sf-block {
  background: var(--sf-white); border: 1px solid var(--sf-border-light); border-radius: var(--sf-radius-card);
  padding: 28px; margin-bottom: 20px;
}
@media (max-width: 767px) { .sf-prose section, .sf-prose .sf-block { padding: 22px; } }
.sf-prose h2 { margin: 0 0 14px; font-size: 22px; font-weight: 650; line-height: 1.3; color: var(--sf-ink); }
.sf-prose h3 { margin: 18px 0 6px; font-size: 17px; font-weight: 650; color: var(--sf-ink); }
.sf-prose p, .sf-prose li { font-size: 16px; line-height: 1.7; color: #334155; }
.sf-prose p { margin: 0 0 12px; }
.sf-prose p:last-child { margin-bottom: 0; }
.sf-prose ul { margin: 0; padding-left: 0; list-style: none; display: grid; gap: 10px; }
.sf-prose ul li { position: relative; padding-left: 22px; }
.sf-prose ul li::before { content: ""; position: absolute; left: 2px; top: 0.7em; width: 7px; height: 7px; background: var(--sf-teal-dark); }
.sf-prose strong { color: var(--sf-ink); }

.sf-side > * + * { margin-top: 20px; }
.sf-side h2 { margin: 0 0 12px; font-size: 18px; font-weight: 650; color: var(--sf-ink); }
.sf-side ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.sf-side li { padding: 12px 14px; background: var(--sf-surface-light); border: 1px solid var(--sf-border-light); border-radius: 8px; font-size: 15px; line-height: 1.55; color: #334155; }
.sf-side li strong { display: block; font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--sf-teal-dark); margin-bottom: 2px; }
.sf-side p { margin: 0; font-size: 15px; line-height: 1.65; color: #334155; }
.sf-related a { display: block; padding: 14px; border: 1px solid var(--sf-border-light); border-radius: 8px; text-decoration: none; color: #334155; font-size: 15px; line-height: 1.5; transition: border-color var(--sf-ease); }
.sf-related a:hover { border-color: #94A3B8; }
.sf-related a .sf-patent-no { display: block; font-size: 14.5px; margin-bottom: 4px; }

/* CTA band (dark inset) */
.sf-cta-band {
  background: var(--sf-navy-900); color: var(--sf-text-on-dark); border-radius: var(--sf-radius-card);
  padding: 40px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px;
}
.sf-cta-band h2 { margin: 0; font-size: clamp(24px, 1.2vw + 18px, 32px); line-height: 1.2; font-weight: 700; color: var(--sf-text-on-dark); max-width: 22ch; }
.sf-cta-band p { margin: 8px 0 0; color: var(--sf-text-muted-dark); }
@media (max-width: 767px) { .sf-cta-band { padding: 28px 22px; } }

/* ---------- FAQ ---------- */
.sf-faq-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 40px; align-items: start; }
@media (max-width: 1023px) { .sf-faq-layout { grid-template-columns: 1fr; } }
.sf-faq-toc { position: sticky; top: calc(var(--sf-header-h) + 24px); }
@media (max-width: 1023px) { .sf-faq-toc { position: static; } }
.sf-faq-toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--sf-border-light); }
.sf-faq-toc a { display: block; padding: 8px 14px; min-height: 40px; color: var(--sf-text-secondary); text-decoration: none; font-size: 15px; }
.sf-faq-toc a:hover { color: var(--sf-ink); border-left: 2px solid var(--sf-teal); margin-left: -1px; }
.sf-faq-group + .sf-faq-group { margin-top: 44px; }
.sf-faq-group > h2 { margin: 0 0 14px; font-size: 24px; font-weight: 700; color: var(--sf-ink); }
/* Generic page body */
.sf-page-hero { background: var(--sf-navy-900); color: var(--sf-text-on-dark); padding-block: 64px; }
.sf-page-hero .sf-lead { margin-top: 14px; }
@media (max-width: 767px) { .sf-page-hero { padding-block: 44px; } }

/* ---------- Elementor integration ----------
 * Elementor containers (.e-con) set display/padding/gap through their own variables;
 * these double-class selectors make the theme layout classes win when used on containers. */
.e-con.sf-hero__grid, .e-con.sf-grid-3, .e-con.sf-inquiry, .e-con.sf-patent-layout,
.e-con.sf-footer__grid, .e-con.sf-faq-layout { display: grid; }
.e-con.sf-hero__grid { gap: 48px; }
.e-con.sf-grid-3 { gap: 22px; }
.e-con.sf-inquiry { gap: 48px; }
.e-con.sf-patent-layout { gap: 28px; margin-top: 24px; }
.e-con.sf-footer__grid { gap: 40px; }
.e-con.sf-faq-layout { gap: 40px; }
@media (max-width: 1023px) { .e-con.sf-inquiry { gap: 32px; } }
@media (max-width: 767px) { .e-con.sf-footer__grid { gap: 32px; } }
.e-con.sf-card { --padding-top: 24px; --padding-bottom: 24px; --padding-left: 24px; --padding-right: 24px; }
.e-con.sf-form-card { --padding-top: 32px; --padding-bottom: 32px; --padding-left: 32px; --padding-right: 32px; }
@media (max-width: 767px) { .e-con.sf-form-card { --padding-top: 22px; --padding-bottom: 22px; --padding-left: 22px; --padding-right: 22px; } }
.e-con.sf-actions { flex-direction: row; flex-wrap: wrap; gap: 14px; }
@media (max-width: 767px) {
  .e-con.sf-actions { flex-direction: column; align-items: stretch; }
  .e-con.sf-actions > .elementor-widget { width: 100%; }
}

/* Vertical rhythm for stacked widgets */
.sf-hero__copy > .elementor-element + .elementor-element { margin-top: 22px; }
.sf-hero__copy > .sf-actions { margin-top: 32px !important; }
.sf-section-head > .elementor-element + .elementor-element,
.sf-inquiry__info > .elementor-element + .elementor-element,
.sf-cta-band__copy > .elementor-element + .elementor-element { margin-top: 12px; }
.sf-section-head > .elementor-element:nth-child(2) { margin-top: 10px; }
.e-con.sf-section-head { margin-bottom: 32px; }
.sf-page-hero .e-con.sf-section-head { margin-bottom: 0; }
.sf-info-card > .elementor-element + .elementor-element { margin-top: 10px; }
.sf-info-card .elementor-widget-html p { margin: 14px 0 0; }
.sf-card > .elementor-element + .elementor-element { margin-top: 12px; }
.sf-text-editor p:last-child, .elementor-widget-text-editor p:last-child { margin-bottom: 0; }
.sf-side h2.elementor-heading-title { margin: 0; font-size: 18px; font-weight: 650; color: var(--sf-ink); }
.sf-related ul { gap: 10px; }
.sf-related li { padding: 0; background: none; border: 0; }

/* Dark surfaces */
.sf-dark a:not(.elementor-button) { color: var(--sf-teal); }
.sf-dark .sf-citations a, .sf-dark .sf-brand { color: var(--sf-text-on-dark); }
.sf-footer li a, .sf-footer .elementor-widget-text-editor li a { color: var(--sf-text-muted-dark); }
.sf-footer__bottom p { margin: 0; }
.e-con.sf-cta-band { flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; }
.sf-cta-band .elementor-heading-title { margin: 0; font-size: clamp(24px, 1.2vw + 18px, 32px); line-height: 1.2; font-weight: 700; color: var(--sf-text-on-dark); max-width: 24ch; }
.e-con.sf-cta-band__copy { width: auto; flex: 1 1 420px; }
.e-con.sf-cta-band > .sf-actions { width: auto; flex: 0 0 auto; }

/* Header: brand | menu | CTA on one line */
.e-con.sf-header > .e-con-inner { flex-direction: row; flex-wrap: nowrap; align-items: center; justify-content: space-between; gap: 24px; min-height: var(--sf-header-h); }
.sf-header .elementor-widget-shortcode { flex: 0 0 auto; width: auto; }
.sf-header .sf-brand { flex-wrap: nowrap; white-space: nowrap; }
.sf-header .sf-nav { flex: 1 1 auto; width: auto; }
.sf-nav .elementor-nav-menu--main .elementor-nav-menu { justify-content: flex-end; }
.e-con.sf-header-cta { flex: 0 0 auto; width: auto; }

/* FAQ: Elementor Nested Accordion skin */
.sf-faq-group .elementor-heading-title { margin: 0 0 14px; font-size: 24px; font-weight: 700; line-height: 1.25; color: var(--sf-ink); }
.e-con.sf-faq-group + .e-con.sf-faq-group { margin-top: 44px; }
.sf-faq .e-n-accordion { display: grid; gap: 10px; }
.sf-faq .e-n-accordion-item { background: var(--sf-white); border: 1px solid var(--sf-border-light); border-radius: 10px; overflow: hidden; }
.sf-faq .e-n-accordion-item-title {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 16px 20px; min-height: 56px; border: 0; background: transparent; cursor: pointer;
}
.sf-faq .e-n-accordion-item-title:hover { background: var(--sf-surface-light); }
.sf-faq .e-n-accordion-item-title-text { margin: 0; font-size: 16.5px; font-weight: 600; line-height: 1.4; color: var(--sf-ink); }
.sf-faq .e-n-accordion-item-title-icon { order: 2; flex: none; }
.sf-faq .e-n-accordion-item-title-icon svg { width: 14px; height: 14px; fill: var(--sf-teal-dark); }
.sf-faq .e-con.sf-faq-answer { --padding-top: 0px; --padding-bottom: 18px; --padding-left: 20px; --padding-right: 20px; border: 0; }
.sf-faq-answer p, .sf-faq-answer li { font-size: 16px; line-height: 1.7; color: #334155; }
.sf-faq-answer p { margin: 0 0 10px; }
.sf-faq-answer ul, .sf-faq-answer ol { margin: 0 0 10px; padding-left: 22px; }
/* Section boxes: Elementor wraps boxed content in .e-con-inner. Padding and gutters go there;
 * the ".elementor" prefix outranks Elementor's own container rules regardless of load order. */
.elementor .e-con.sf-section, .elementor .e-con.sf-hero, .elementor .e-con.sf-page-hero,
.elementor .e-con.sf-footer, .elementor .e-con.sf-header { padding: 0; }
.elementor .e-con.sf-section > .e-con-inner, .elementor .e-con.sf-hero > .e-con-inner,
.elementor .e-con.sf-page-hero > .e-con-inner, .elementor .e-con.sf-footer > .e-con-inner,
.elementor .e-con.sf-header > .e-con-inner {
  box-sizing: border-box; width: 100%;
  max-width: calc(var(--sf-container) + 2 * var(--sf-gutter));
  padding: var(--sf-section-y) var(--sf-gutter);
}
.elementor .e-con.sf-hero > .e-con-inner { padding-top: 80px; padding-bottom: 88px; }
.elementor .e-con.sf-page-hero > .e-con-inner { padding-top: 64px; padding-bottom: 64px; }
.elementor .e-con.sf-footer > .e-con-inner { padding-top: 60px; padding-bottom: 28px; }
.elementor .e-con.sf-header > .e-con-inner { padding-top: 0; padding-bottom: 0; }
.elementor .e-con.sf-cta-section > .e-con-inner { padding-top: 0; }
@media (max-width: 767px) {
  .elementor .e-con.sf-hero > .e-con-inner { padding-top: 48px; padding-bottom: 56px; }
  .elementor .e-con.sf-page-hero > .e-con-inner { padding-top: 44px; padding-bottom: 44px; }
}
.sf-nav .elementor-menu-toggle svg { fill: var(--sf-text-on-dark); }
.sf-nav .elementor-menu-toggle { color: var(--sf-text-on-dark); }

/* ---------- Home hero carousel ---------- */
.sf-hero-carousel { position: relative; width: 100%; }
.e-con.sf-hero__slide { --padding-top: 0px; --padding-bottom: 0px; --padding-left: 0px; --padding-right: 0px; }
.sf-hero-carousel .swiper-pagination-bullet { width: 10px; height: 10px; background: var(--sf-text-muted-dark); opacity: 0.45; }
.sf-hero-carousel .swiper-pagination-bullet-active { background: var(--sf-teal); opacity: 1; }
/* Controls share one strip under the slides: pause/play button, then the dots. */
.elementor-widget.sf-hero-carousel .e-n-carousel.swiper { padding-bottom: 76px; }
.e-con.sf-hero__slide { justify-content: center; }
.elementor-widget.sf-hero-carousel .swiper-pagination.swiper-pagination-horizontal {
  inset-inline-start: 60px; top: auto; bottom: 17px; width: auto; transform: none; text-align: left; line-height: 0;
}
.elementor .e-con.sf-hero > .e-con-inner { padding-bottom: 56px; }
@media (max-width: 767px) { .elementor .e-con.sf-hero > .e-con-inner { padding-bottom: 40px; } }
.sf-carousel-toggle {
  position: absolute; left: 0; bottom: 0; z-index: 2;
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; padding: 0;
  border: 1px solid var(--sf-border-dark); border-radius: 50%; background: transparent; color: var(--sf-text-on-dark); cursor: pointer;
}
/* Hello Elementor paints every button:hover/:focus pink; keep the toggle on-brand. */
.sf-carousel-toggle:hover, .sf-carousel-toggle:focus { background: transparent; color: var(--sf-text-on-dark); border-color: var(--sf-text-muted-dark); }
.sf-carousel-toggle:focus-visible { outline: 2px solid var(--sf-teal); outline-offset: 2px; }
.sf-carousel-toggle::before { content: ""; width: 10px; height: 12px; border-inline: 3px solid currentColor; box-sizing: border-box; }
.sf-carousel-toggle[data-paused="true"]::before { width: 0; height: 0; border-inline: 0; border-block: 7px solid transparent; border-left: 11px solid currentColor; margin-left: 3px; }
.sf-hero-photo { margin: 0; justify-self: end; width: 100%; max-width: 420px; }
.sf-hero-photo img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--sf-radius-card); border: 1px solid var(--sf-border-dark); }
@media (max-width: 1023px) {
  .sf-hero-photo { justify-self: stretch; max-width: none; }
}
/* Tablets only: phones keep 4:5, which fills the slide the carousel sizes to the taller patent slide. */
@media (min-width: 768px) and (max-width: 1023px) {
  .sf-hero-photo img { aspect-ratio: 16 / 10; }
}

/* ---------- Company cards ---------- */
.e-con.sf-info-card > .elementor-element.sf-info-card__link { margin-top: auto; padding-top: 8px; }
.sf-info-card__link a { font-size: 15px; font-weight: 600; color: var(--sf-teal-dark); text-decoration: none; }
.sf-info-card__link a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Blog: single post ---------- */
.sf-post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 0 0 16px; font-size: 14.5px; color: var(--sf-text-muted-dark); }
.sf-post-meta a { font-size: 12.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sf-teal); text-decoration: none; }
.sf-post-meta a:hover { text-decoration: underline; }
.sf-post-title {
  margin: 0;
  font-size: clamp(30px, 2.4vw + 12px, 46px); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em;
  max-width: 860px; color: var(--sf-text-on-dark);
}
.e-con.sf-article { max-width: 760px; margin-inline: auto; width: 100%; }
.sf-post-image { margin: 0 0 36px; }
.sf-post-image img { display: block; width: 100%; height: auto; border-radius: var(--sf-radius-card); }
.sf-article-body { color: #334155; }
.sf-article-body p, .sf-article-body li { font-size: 17.5px; line-height: 1.75; }
.sf-article-body p { margin: 0 0 20px; }
.sf-article-body h2 { margin: 44px 0 14px; font-size: clamp(22px, 0.8vw + 18px, 27px); font-weight: 700; line-height: 1.25; color: var(--sf-ink); }
.sf-article-body h3 { margin: 36px 0 12px; padding-top: 24px; border-top: 1px solid var(--sf-border-light); font-size: 20px; font-weight: 650; line-height: 1.3; color: var(--sf-ink); }
.sf-article-body h4 { margin: 28px 0 10px; font-size: 17.5px; font-weight: 650; color: var(--sf-ink); }
.sf-article-body > *:first-child, .sf-article-body .elementor-widget-container > *:first-child { margin-top: 0; }
.sf-article-body ul, .sf-article-body ol { margin: 0 0 22px; padding-left: 24px; }
.sf-article-body li { margin-bottom: 8px; }
.sf-article-body li::marker { color: var(--sf-teal-dark); }
.sf-article-body a { color: var(--sf-teal-dark); text-decoration: underline; text-underline-offset: 3px; }
.sf-article-body strong { color: var(--sf-ink); }
.sf-article-body blockquote { margin: 28px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--sf-teal-dark); font-size: 19px; color: var(--sf-ink); }
.sf-article-body img, .sf-article-body figure { max-width: 100%; height: auto; }
.sf-article-body figure { margin: 28px 0; }
.sf-article-body figcaption { margin-top: 8px; font-size: 14px; color: var(--sf-text-secondary); }
.sf-article-body table { width: 100%; border-collapse: collapse; margin: 0 0 22px; font-size: 15.5px; }
.sf-article-body th, .sf-article-body td { padding: 10px 12px; border: 1px solid var(--sf-border-light); text-align: left; vertical-align: top; }
.sf-article-body th { background: var(--sf-surface-light); color: var(--sf-ink); }
.sf-article-body .wp-block-table { overflow-x: auto; }

/* ---------- Blog: cards, topics, pagination ---------- */
.sf-post-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
@media (max-width: 1099px) { .sf-post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) { .sf-post-grid { grid-template-columns: 1fr; } }
.sf-card.sf-post-card { position: relative; display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.sf-post-card__img img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.sf-post-card__body { display: flex; flex-direction: column; gap: 10px; padding: 22px; }
.sf-post-card__meta { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; font-size: 13.5px; color: var(--sf-text-secondary); }
.sf-post-card__meta span { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--sf-teal-dark); }
.sf-post-card__title { margin: 0; font-size: 19px; font-weight: 650; line-height: 1.35; }
.sf-post-card__title a { color: var(--sf-ink); text-decoration: none; }
.sf-post-card__title a::after { content: ""; position: absolute; inset: 0; }
.sf-post-card:hover { border-color: #94A3B8; }
.sf-post-card:focus-within { outline: 2px solid var(--sf-teal-dark); outline-offset: 2px; }
.sf-post-card p { margin: 0; font-size: 15.5px; line-height: 1.6; color: var(--sf-text-secondary); }
.sf-topics ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; padding: 0; list-style: none; }
.sf-topics a {
  display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px;
  border: 1px solid var(--sf-border-light); border-radius: 999px; background: var(--sf-white);
  font-size: 14.5px; font-weight: 500; color: var(--sf-ink); text-decoration: none;
}
.sf-topics a:hover { border-color: #94A3B8; }
.sf-topics a[aria-current="page"] { background: var(--sf-ink); border-color: var(--sf-ink); color: var(--sf-white); }
.sf-pagination { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; }
.sf-pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; padding: 0 14px;
  border: 1px solid var(--sf-border-light); border-radius: var(--sf-radius-btn); background: var(--sf-white);
  color: var(--sf-ink); text-decoration: none; font-size: 15px;
}
.sf-pagination .page-numbers.current { background: var(--sf-ink); border-color: var(--sf-ink); color: var(--sf-white); }
.sf-empty { margin: 0; font-size: 17px; color: var(--sf-text-secondary); }