/* ==================================================================
   sugar-reset-us.com | sugarreset-hub.css
   Theme "Deep Crimson & Solar Gold" (TYPE=BLOGHUB v1)
   High-contrast clinical daylight bands alternating with deep crimson bands.
   Strict 9bis anti-horizontal overflow rules R1-R7 baked in.
================================================================== */

/* --- 1. tokens ---------------------------------------------------- */
:root {
  --c-crimson: #7f1520;
  --c-crimson-dk: #540b13;
  --c-crimson-deep: #32050b;
  --c-crimson-hero: #290408;
  --c-bone: #fdfbfa;
  --c-bone-2: #f6f0ee;
  --c-bone-3: #ede2df;
  --c-white: #ffffff;
  --c-gold: #f59e0b;
  --c-gold-lt: #ffc72c;
  --c-gold-dk: #d97706;
  --c-btn-gold: #e5a820;
  --c-amber: #e07a20;
  --c-jade: #16a34a;
  --c-sale-red: #dc2626;
  --c-text-dk: #fdfbfa;
  --c-mute-dk: #d4bec0;
  --c-text-lt: #1c0a0c;
  --c-mute-lt: #52393c;
  --c-hair-dk: rgba(253, 251, 250, 0.16);
  --c-hair-lt: rgba(28, 10, 12, 0.12);
  --u-radius: 8px;
  --u-wrap: 1180px;
  --f-head: "Sora", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --f-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* --- 2. base (R6: html,body clip) --------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; max-width: 100%; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--c-bone);
  color: var(--c-text-lt);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.66;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 3px solid var(--c-gold-lt); outline-offset: 3px; }

.srf-skip { position: absolute; left: -9999px; top: 0; }
.srf-skip:focus {
  left: 8px; top: 8px; z-index: 60; background: var(--c-crimson); color: #fff;
  padding: 10px 16px; border-radius: var(--u-radius);
}

/* --- 3. rhythm and typography ------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--f-head);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0;
  overflow-wrap: break-word;
}
p { margin: 0 0 1.05em; overflow-wrap: break-word; }
p:last-child { margin-bottom: 0; }
strong { font-weight: 700; }

.srf-wrap { width: 100%; max-width: var(--u-wrap); margin: 0 auto; padding: 0 20px; }
.srf-band { padding: 76px 0; }
.srf-band-bone { background: var(--c-bone); color: var(--c-text-lt); }
.srf-band-mist { background: var(--c-bone-2); color: var(--c-text-lt); }
.srf-band-deep { background: var(--c-crimson-dk); color: var(--c-text-dk); }
.srf-band-deep-2 { background: var(--c-crimson-deep); color: var(--c-text-dk); }

/* R4: tables container */
.srf-scroll { width: 100%; max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; display: block; }

.srf-h1 { font-size: clamp(30px, 5.2vw, 54px); letter-spacing: -0.02em; }
.srf-h2 { font-size: clamp(24px, 3.4vw, 38px); letter-spacing: -0.015em; }
.srf-h3 { font-size: clamp(18px, 2vw, 24px); }

.srf-kicker {
  font-family: var(--f-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-crimson);
  margin: 0 0 10px;
}
.srf-band-deep .srf-kicker, .srf-band-deep-2 .srf-kicker { color: var(--c-gold-lt); }

.srf-idx {
  font-family: var(--f-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 6px;
  color: var(--c-mute-lt);
}
.srf-band-deep .srf-idx, .srf-band-deep-2 .srf-idx { color: var(--c-mute-dk); }

.srf-sect-head { margin-bottom: 34px; max-width: 80ch; }
.srf-rule { height: 3px; width: 72px; background: var(--c-crimson); margin: 14px 0 0; }
.srf-band-deep .srf-rule, .srf-band-deep-2 .srf-rule { background: var(--c-gold-lt); }

.srf-lead { font-size: clamp(16px, 1.7vw, 19px); color: var(--c-mute-lt); max-width: 70ch; }
.srf-band-deep .srf-lead, .srf-band-deep-2 .srf-lead { color: var(--c-mute-dk); }

/* --- 4. buttons & ctavariants -------------------------------------- */
.srf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 15px 28px;
  border-radius: var(--u-radius);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}
.srf-btn:hover { transform: translateY(-2px); }

.srf-btn-gold {
  background: var(--c-gold-lt);
  color: #1a080a;
  box-shadow: 0 4px 14px rgba(229, 168, 32, 0.4);
}
.srf-btn-gold:hover {
  background: #ffd34d;
  box-shadow: 0 6px 20px rgba(229, 168, 32, 0.55);
}

.srf-btn-crimson {
  background: var(--c-crimson);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(127, 21, 32, 0.35);
}
.srf-btn-crimson:hover {
  background: var(--c-crimson-dk);
  box-shadow: 0 6px 18px rgba(127, 21, 32, 0.45);
}

/* R7: ghost buttons for light and dark */
.srf-btn-ghost {
  background: transparent;
  color: var(--c-crimson);
  border: 2px solid var(--c-crimson);
}
.srf-btn-ghost:hover {
  background: rgba(127, 21, 32, 0.08);
}
.srf-band-deep .srf-btn-ghost, .srf-band-deep-2 .srf-btn-ghost, .srf-hero .srf-btn-ghost {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.6);
}
.srf-band-deep .srf-btn-ghost:hover, .srf-band-deep-2 .srf-btn-ghost:hover, .srf-hero .srf-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

.srf-btn-lg { font-size: 18px; padding: 18px 36px; }

/* --- 5. masthead & mobile menu ----------------------------------- */
.srf-mast {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(41, 4, 8, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-hair-dk);
  color: var(--c-text-dk);
}
.srf-mast-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.srf-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: -0.01em;
  color: #ffffff;
}
.srf-logo img { width: 34px; height: 34px; border-radius: 50%; }
.srf-logo-tag { color: var(--c-gold-lt); }

.srf-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}
.srf-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-mute-dk);
  transition: color 0.15s ease;
}
.srf-nav a:hover, .srf-nav a.is-on, .is-on { color: #ffffff; }
.srf-card { background: var(--c-white); border-radius: var(--u-radius); }
.srf-hero-copy { max-width: 620px; }

.srf-mast-cta { display: flex; align-items: center; gap: 12px; }

.srf-burger {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--u-radius);
  background: rgba(255, 255, 255, 0.08);
}
.srf-burger span {
  width: 22px;
  height: 2px;
  background: #ffffff;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* F13: mobile menu with visibility */
@media (max-width: 860px) {
  .srf-burger { display: flex; }
  .srf-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #200306;
    border-bottom: 2px solid var(--c-crimson);
    flex-direction: column;
    padding: 24px 20px;
    gap: 18px;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: visibility 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
  }
  .srf-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }
  .srf-nav a { font-size: 16px; color: #ffffff; width: 100%; text-align: center; }
}

@media (max-width: 480px) {
  .srf-mast-in { height: 64px; }
  .srf-logo span.srf-logo-text { font-size: 17px; }
  .srf-mast-cta .srf-btn { font-size: 12px; padding: 8px 14px; }
}

/* --- 6. hero split ------------------------------------------------ */
.srf-hero {
  background: linear-gradient(145deg, #420810 0%, #260408 55%, #150204 100%);
  color: var(--c-text-dk);
  padding: 60px 0 76px;
  position: relative;
  overflow: hidden;
}
.srf-hero::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229, 168, 32, 0.12) 0%, transparent 70%);
  pointer-events: none;
}
/* R1 & R2: grid with minmax(0,1fr) and children min-width:0 */
.srf-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}
.srf-hero-grid > * { min-width: 0; }

.srf-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 199, 44, 0.12);
  border: 1px solid rgba(255, 199, 44, 0.35);
  color: var(--c-gold-lt);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.srf-hero-h1 { margin-bottom: 18px; font-size: clamp(30px, 4.4vw, 50px); line-height: 1.14; }
.srf-hero-lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--c-mute-dk); margin-bottom: 22px; }

.srf-timeline-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}
.srf-chip {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

.srf-hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.srf-micro-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--c-mute-dk);
}
.srf-micro-item { display: inline-flex; align-items: center; gap: 6px; }

.srf-hero-media { position: relative; text-align: center; }
.srf-hero-img-wrap {
  position: relative;
  display: inline-block;
  border-radius: 16px;
  padding: 14px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
}
.srf-hero-img {
  max-width: min(440px, 100%);
  margin: 0 auto;
  border-radius: 12px;
  filter: drop-shadow(0 14px 30px rgba(0, 0, 0, 0.6));
}

.srf-stat-chip {
  position: absolute;
  background: rgba(26, 4, 8, 0.94);
  border: 1px solid rgba(255, 199, 44, 0.4);
  padding: 10px 16px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  font-family: var(--f-head);
  text-align: left;
}
.srf-stat-chip-top { top: 12px; right: -8px; }
.srf-stat-chip-btm { bottom: 18px; left: -10px; }
.srf-stat-val { font-size: 18px; font-weight: 800; color: var(--c-gold-lt); display: block; }
.srf-stat-lbl { font-size: 11px; font-weight: 600; color: var(--c-mute-dk); text-transform: uppercase; letter-spacing: 0.08em; }

@media (max-width: 900px) {
  .srf-hero-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .srf-hero-media { order: -1; }
  .srf-stat-chip-top { right: 8px; }
  .srf-stat-chip-btm { left: 8px; }
}

/* --- 7. trust bar ------------------------------------------------- */
.srf-trustbar {
  background: #1d0306;
  border-top: 1px solid var(--c-hair-dk);
  border-bottom: 1px solid var(--c-hair-dk);
  padding: 18px 0;
  color: var(--c-text-dk);
}
.srf-trust-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 20px;
}
.srf-trust-point {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
}
.srf-trust-icon { color: var(--c-gold-lt); font-size: 18px; }

/* --- 8. formula & pathway columns -------------------------------- */
.srf-pathways-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}
.srf-pathways-grid > * { min-width: 0; }

.srf-pathway-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
.srf-band-deep .srf-pathway-card {
  background: var(--c-crimson-deep);
  border-color: var(--c-hair-dk);
}
.srf-pathway-num {
  font-family: var(--f-head);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--c-crimson);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.srf-band-deep .srf-pathway-num { color: var(--c-gold-lt); }

.srf-pathway-title { font-size: 19px; margin-bottom: 12px; }
.srf-pathway-desc { font-size: 15px; color: var(--c-mute-lt); margin-bottom: 16px; flex-grow: 1; }
.srf-band-deep .srf-pathway-desc { color: var(--c-mute-dk); }

.srf-pathway-ings {
  border-top: 1px dashed var(--c-hair-lt);
  padding-top: 14px;
  font-size: 13px;
  font-weight: 600;
}
.srf-band-deep .srf-pathway-ings { border-top-color: var(--c-hair-dk); }

@media (max-width: 860px) {
  .srf-pathways-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 9. pricing grid ---------------------------------------------- */
.srf-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
  align-items: stretch;
}
.srf-pricing-grid > * { min-width: 0; }

.srf-pack-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: 12px;
  padding: 30px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.srf-pack-card:hover { transform: translateY(-4px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); }

.srf-pack-featured {
  border: 2px solid var(--c-gold-lt);
  box-shadow: 0 8px 30px rgba(229, 168, 32, 0.25);
  transform: scale(1.02);
}
.srf-pack-featured:hover { transform: scale(1.02) translateY(-4px); }

.srf-pack-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-gold-lt);
  color: #1a080a;
  font-family: var(--f-head);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 999px;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
  white-space: nowrap;
}

.srf-pack-title { font-size: 24px; margin-bottom: 4px; }
.srf-pack-sub { font-size: 14px; color: var(--c-mute-lt); margin-bottom: 16px; }

/* R3: image max-width in stylesheet */
.srf-pack-img {
  max-width: min(240px, 100%);
  margin: 0 auto 16px;
}

.srf-pack-price { margin-bottom: 8px; }
.srf-pack-num { font-size: 48px; font-weight: 800; font-family: var(--f-head); line-height: 1; }
.srf-pack-unit { font-size: 14px; color: var(--c-mute-lt); }

.srf-pack-save {
  display: inline-block;
  background: rgba(22, 163, 74, 0.12);
  color: var(--c-jade);
  font-weight: 700;
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.srf-pack-total { font-size: 15px; margin-bottom: 4px; }
.srf-pack-total s { color: var(--c-mute-lt); margin-right: 4px; }
.srf-pack-ship { font-size: 13px; font-weight: 700; color: var(--c-gold-dk); margin-bottom: 20px; }

.srf-pack-btn { width: 100%; margin-top: auto; }
.srf-pack-cards { margin-top: 14px; max-width: 170px; margin-left: auto; margin-right: auto; }

@media (max-width: 860px) {
  .srf-pricing-grid { grid-template-columns: minmax(0, 1fr); max-width: 440px; margin-left: auto; margin-right: auto; }
  .srf-pack-featured { transform: none; }
  .srf-pack-featured:hover { transform: translateY(-4px); }
}

/* --- 10. ingredients detailed grid -------------------------------- */
.srf-ings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}
.srf-ings-grid > * { min-width: 0; }

.srf-ing-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 26px 22px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}
.srf-ing-num {
  font-size: 12px;
  font-weight: 800;
  color: var(--c-crimson);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.srf-ing-name { font-size: 20px; margin-bottom: 6px; }
.srf-ing-role { font-size: 13px; font-weight: 700; color: var(--c-amber); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.srf-ing-text { font-size: 15px; color: var(--c-mute-lt); }

@media (max-width: 760px) {
  .srf-ings-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 11. guarantee split ------------------------------------------ */
.srf-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: center;
}
.srf-split > * { min-width: 0; }

.srf-checklist { margin: 20px 0 28px; }
/* F10: CSS escape single backslash \2713 */
.srf-checklist li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 15px;
}
.srf-checklist li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--c-jade);
  font-weight: 800;
  font-size: 16px;
}
.srf-band-deep .srf-checklist li::before { color: var(--c-gold-lt); }

@media (max-width: 860px) {
  .srf-split { grid-template-columns: minmax(0, 1fr); text-align: center; }
  .srf-checklist li { text-align: left; }
}

/* --- 12. bonuses grid --------------------------------------------- */
.srf-bonuses-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 36px;
}
.srf-bonuses-grid > * { min-width: 0; }

.srf-bonus-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 24px 20px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}
.srf-bonus-val {
  display: inline-block;
  background: rgba(220, 38, 38, 0.1);
  color: var(--c-sale-red);
  font-size: 12px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.srf-bonus-title { font-size: 18px; margin-bottom: 8px; }
.srf-bonus-desc { font-size: 14px; color: var(--c-mute-lt); margin-bottom: 12px; }
.srf-bonus-tag { font-size: 12px; font-weight: 800; color: var(--c-crimson); text-transform: uppercase; letter-spacing: 0.08em; }

@media (max-width: 860px) {
  .srf-bonuses-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 13. reviews & stats ------------------------------------------ */
.srf-stats-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  text-align: center;
  margin-bottom: 40px;
}
.srf-stats-row > * { min-width: 0; }

.srf-stat-box {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 22px 14px;
}
.srf-stat-big { font-family: var(--f-head); font-size: 32px; font-weight: 800; color: var(--c-crimson); line-height: 1; margin-bottom: 6px; }
.srf-stat-sub { font-size: 13px; color: var(--c-mute-lt); font-weight: 600; text-transform: uppercase; }

.srf-revs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.srf-revs-grid > * { min-width: 0; }

.srf-rev-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 28px 22px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
}
.srf-stars { color: #f59e0b; font-size: 17px; margin-bottom: 12px; letter-spacing: 2px; }
.srf-rev-body { font-size: 15px; color: var(--c-mute-lt); margin-bottom: 18px; flex-grow: 1; font-style: italic; }
.srf-rev-author { display: flex; align-items: center; gap: 12px; }
.srf-rev-av { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.srf-rev-name { font-weight: 700; font-size: 15px; margin-bottom: 2px; }
.srf-rev-loc { font-size: 12px; color: var(--c-mute-lt); }
.srf-rev-badge { color: var(--c-jade); font-size: 11px; font-weight: 700; text-transform: uppercase; margin-top: 2px; }

@media (max-width: 860px) {
  .srf-stats-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .srf-revs-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 14. how to steps --------------------------------------------- */
.srf-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}
.srf-steps-grid > * { min-width: 0; }

.srf-step-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 28px 22px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}
.srf-step-badge {
  display: inline-block;
  background: var(--c-crimson);
  color: #ffffff;
  font-family: var(--f-head);
  font-size: 12px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.srf-step-title { font-size: 19px; margin-bottom: 10px; }
.srf-step-text { font-size: 15px; color: var(--c-mute-lt); }

@media (max-width: 860px) {
  .srf-steps-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 15. accordion faq -------------------------------------------- */
.srf-faq-wrap { max-width: 820px; margin: 36px auto 0; }
.srf-faq-item {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  margin-bottom: 14px;
  overflow: hidden;
}
.srf-faq-btn {
  width: 100%;
  padding: 20px 22px;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--f-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-text-lt);
}
.srf-faq-btn:hover { background: rgba(0, 0, 0, 0.02); }
.srf-faq-ico {
  font-size: 20px;
  font-weight: 400;
  transition: transform 0.2s ease;
}
.srf-faq-item.is-open .srf-faq-ico { transform: rotate(45deg); }
.srf-faq-body {
  padding: 0 22px 20px;
  font-size: 15px;
  color: var(--c-mute-lt);
  display: none;
}
.srf-faq-item.is-open .srf-faq-body { display: block; }

/* --- 16. final cta ------------------------------------------------ */
.srf-final { padding: 60px 0; }
.srf-final-box {
  background: linear-gradient(145deg, #420810 0%, #260408 60%, #150204 100%);
  color: var(--c-text-dk);
  border-radius: 16px;
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}
.srf-final-img { max-width: min(280px, 100%); margin: 0 auto 24px; }
.srf-final-h2 { font-size: clamp(24px, 3.2vw, 38px); margin-bottom: 14px; }
.srf-final-sub { font-size: 16px; color: var(--c-mute-dk); max-width: 60ch; margin: 0 auto 28px; }

/* --- 17. blog hub & article layouts ------------------------------- */
.srf-blog-hero {
  background: linear-gradient(145deg, #420810 0%, #260408 100%);
  color: var(--c-text-dk);
  padding: 56px 0 64px;
}
.srf-bc { font-size: 13px; color: var(--c-mute-dk); margin-bottom: 14px; }
.srf-bc a { color: var(--c-gold-lt); }

.srf-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 40px;
}
.srf-blog-grid > * { min-width: 0; }

.srf-blog-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.srf-blog-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); }
.srf-blog-tag {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-crimson);
  margin-bottom: 8px;
}
.srf-blog-title { font-size: 19px; margin-bottom: 10px; line-height: 1.25; }
.srf-blog-desc { font-size: 14px; color: var(--c-mute-lt); margin-bottom: 18px; flex-grow: 1; }
.srf-blog-meta { font-size: 12px; color: var(--c-mute-lt); font-weight: 600; display: flex; justify-content: space-between; align-items: center; }
.srf-blog-read { color: var(--c-crimson); font-weight: 700; }

@media (max-width: 960px) {
  .srf-blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .srf-blog-grid { grid-template-columns: minmax(0, 1fr); }
}

/* Article Page Specifics */
.srf-art-wrap { max-width: 780px; margin: 0 auto; }
.srf-toc {
  background: var(--c-bone-2);
  border-left: 4px solid var(--c-crimson);
  padding: 20px 24px;
  border-radius: var(--u-radius);
  margin: 32px 0;
}
.srf-toc-title { font-family: var(--f-head); font-size: 16px; font-weight: 800; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
.srf-toc ol { margin: 0; padding-left: 20px; }
.srf-toc li { margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.srf-toc a:hover { color: var(--c-crimson); }

.srf-art-body { font-size: 17px; line-height: 1.74; color: var(--c-text-lt); }
.srf-art-body h2 { font-size: 26px; margin: 44px 0 16px; padding-top: 10px; border-top: 1px solid var(--c-hair-lt); }
.srf-art-body h3 { font-size: 20px; margin: 26px 0 10px; }
.srf-art-body a { color: var(--c-crimson); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.srf-art-body a:hover { color: var(--c-crimson-dk); }

.srf-mid-cta {
  background: var(--c-bone-3);
  border-radius: var(--u-radius);
  padding: 30px 24px;
  text-align: center;
  margin: 36px 0;
}
.srf-postnav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin: 48px 0;
  padding: 24px 0;
  border-top: 1px solid var(--c-hair-lt);
  border-bottom: 1px solid var(--c-hair-lt);
  font-size: 14px;
  font-weight: 700;
}
.srf-postnav a { display: flex; flex-direction: column; gap: 4px; color: var(--c-crimson); }
.srf-postnav span { font-size: 12px; color: var(--c-mute-lt); text-transform: uppercase; }

.srf-keep-reading { margin: 40px 0; }
.srf-keep-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.srf-keep-card {
  background: var(--c-white);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--u-radius);
  padding: 16px;
  font-size: 14px;
  font-weight: 600;
}

@media (max-width: 620px) {
  .srf-keep-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 18. footer --------------------------------------------------- */
.srf-footer {
  background: #150204;
  color: var(--c-mute-dk);
  padding: 64px 0 36px;
  font-size: 14px;
  border-top: 1px solid var(--c-hair-dk);
}
.srf-footer a { color: var(--c-mute-dk); transition: color 0.15s ease; }
.srf-footer a:hover { color: #ffffff; }

.srf-foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 36px;
  margin-bottom: 48px;
}
.srf-foot-grid > * { min-width: 0; }

.srf-foot-title {
  font-family: var(--f-head);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #ffffff;
  margin-bottom: 16px;
}
.srf-foot-links li { margin-bottom: 10px; }

.srf-foot-legal {
  border-top: 1px solid var(--c-hair-dk);
  padding-top: 28px;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(253, 251, 250, 0.6);
}
.srf-foot-legal p { margin-bottom: 14px; }
.srf-foot-copy { margin-top: 20px; font-weight: 600; color: rgba(253, 251, 250, 0.8); }

@media (max-width: 860px) {
  .srf-foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .srf-foot-grid { grid-template-columns: minmax(0, 1fr); }
}

/* --- 19. motion / fade-up (js-on safe) ----------------------------- */
html.js-on .srf-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
html.js-on .srf-reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  html.js-on .srf-reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}