/* ============================================================
   SHELFOPTIX EXTERNAL STYLE GUIDE
   Version: 1.0
   Usage: <link rel="stylesheet" href="shelfoptix-external.css">
   Fonts required in <head>:
   <link href="https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800;900&family=Barlow:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
   ============================================================ */


/* ── 1. DESIGN TOKENS ─────────────────────────────────────── */
:root {
  /* Brand Colors */
  --sox-red:          #dc2626;
  --sox-red-mid:      #b91c1c;
  --sox-red-dark:     #991b1b;

  /* Neutrals */
  --sox-ink:          #111827;
  --sox-ink-hero:     #0d1117;
  --sox-gray-7:       #374151;
  --sox-gray-6:       #4b5563;
  --sox-gray-5:       #6b7280;
  --sox-gray-4:       #9ca3af;
  --sox-gray-3:       #d1d5db;
  --sox-gray-2:       #e5e7eb;
  --sox-gray-1:       #f3f4f6;
  --sox-gray-0:       #f9fafb;
  --sox-white:        #ffffff;

  /* Accent Colors */
  --sox-yellow:       #f59e0b;
  --sox-yellow-dark:  #d97706;
  --sox-green:        #10b981;
  --sox-purple:       #7c3aed;

  /* Background Layers */
  --sox-bg-0:         #ffffff;
  --sox-bg-1:         #f9fafb;
  --sox-bg-2:         #f3f4f6;

  /* Typography Scale */
  --sox-font-body:    'Barlow', sans-serif;
  --sox-font-display: 'Barlow Condensed', sans-serif;
  --sox-font-mono:    'JetBrains Mono', monospace;

  /* Spacing */
  --sox-section-pad:  96px;
  --sox-container:    1280px;
  --sox-border:       1px solid #e5e7eb;
  --sox-radius:       3px;
  --sox-radius-md:    4px;
}


/* ── 2. RESET & BASE ──────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sox-font-body);
  background: var(--sox-bg-0);
  color: var(--sox-ink);
  overflow-x: hidden;
}


/* ── 3. LAYOUT ────────────────────────────────────────────── */
.sox-container {
  max-width: var(--sox-container);
  margin: 0 auto;
  padding: 0 64px;
}

.sox-section {
  padding: var(--sox-section-pad) 0;
  border-top: var(--sox-border);
}

.sox-section--dark {
  background: var(--sox-ink-hero);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.sox-section--light {
  background: var(--sox-bg-1);
}

.sox-section--alt {
  background: var(--sox-bg-2);
}

.sox-section--red {
  background: var(--sox-red);
  position: relative;
  overflow: hidden;
}

.sox-section--red::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg, transparent, transparent 38px,
    rgba(0,0,0,.05) 38px, rgba(0,0,0,.05) 39px
  );
}

/* Grid helpers */
.sox-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.sox-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.sox-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }

@media (max-width: 900px) {
  .sox-container      { padding: 0 24px; }
  .sox-grid-2,
  .sox-grid-3,
  .sox-grid-4         { grid-template-columns: 1fr; gap: 24px; }
}


/* ── 4. TYPOGRAPHY ────────────────────────────────────────── */

/* Display / Headlines */
.sox-headline-xl {
  font-family: var(--sox-font-display);
  font-weight: 900;
  font-size: clamp(64px, 8.5vw, 112px);
  line-height: .93;
  letter-spacing: -.01em;
  text-transform: uppercase;
  color: var(--sox-white);
}

.sox-headline-lg {
  font-family: var(--sox-font-display);
  font-weight: 900;
  font-size: clamp(34px, 4.5vw, 52px);
  text-transform: uppercase;
  line-height: 1;
  color: var(--sox-ink);
}

.sox-headline-md {
  font-family: var(--sox-font-display);
  font-weight: 900;
  font-size: clamp(28px, 3vw, 38px);
  text-transform: uppercase;
  line-height: 1;
  color: var(--sox-ink);
}

.sox-headline-sm {
  font-family: var(--sox-font-display);
  font-weight: 800;
  font-size: clamp(20px, 2vw, 26px);
  text-transform: uppercase;
  letter-spacing: .04em;
  line-height: 1.1;
  color: var(--sox-ink);
}

/* Accent colors on headlines */
.sox-accent-red    { color: var(--sox-red); }
.sox-accent-yellow { color: var(--sox-yellow); }
.sox-accent-white  { color: var(--sox-white); }

/* Body text */
.sox-body-lg {
  font-size: 17px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--sox-gray-5);
}

.sox-body-md {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--sox-gray-5);
}

.sox-body-sm {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--sox-gray-7);
}

.sox-body-xs {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--sox-gray-5);
}

/* Strong within body */
.sox-body-lg strong,
.sox-body-md strong,
.sox-body-sm strong { color: var(--sox-ink); font-weight: 500; }

/* Section label / eyebrow */
.sox-label {
  font-family: var(--sox-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sox-red);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.sox-label::before {
  content: '';
  display: block;
  width: 22px;
  height: 1px;
  background: var(--sox-red);
}

.sox-label--center {
  justify-content: center;
}

.sox-label--center::before,
.sox-label--center::after {
  content: '';
  display: block;
  width: 22px;
  height: 1px;
  background: var(--sox-red);
}

/* Mono tag badge */
.sox-tag {
  display: inline-block;
  font-family: var(--sox-font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sox-red);
  background: rgba(220,38,38,.07);
  border: 1px solid rgba(220,38,38,.18);
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 20px;
}

/* Stat number */
.sox-stat-num {
  font-family: var(--sox-font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--sox-white);
  line-height: 1;
}

.sox-stat-num span { color: var(--sox-red); }

.sox-stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--sox-gray-5);
  letter-spacing: .07em;
  text-transform: uppercase;
  margin-top: 5px;
}


/* ── 5. BUTTONS ───────────────────────────────────────────── */

/* Primary red button */
.sox-btn-red {
  display: inline-block;
  padding: 8px 22px;
  border: none;
  border-radius: var(--sox-radius);
  font-family: var(--sox-font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--sox-white);
  background: var(--sox-red);
  cursor: pointer;
  text-decoration: none;
  transition: background .2s;
}

.sox-btn-red:hover { background: var(--sox-red-mid); }

/* Ghost button */
.sox-btn-ghost {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid #374151;
  border-radius: var(--sox-radius);
  font-family: var(--sox-font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--sox-gray-3);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
}

.sox-btn-ghost:hover { border-color: var(--sox-red); color: var(--sox-white); }

/* Hero primary button */
.sox-btn-hero-primary {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--sox-font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--sox-radius);
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
  background: var(--sox-red);
  color: var(--sox-white);
}

.sox-btn-hero-primary:hover {
  background: var(--sox-red-mid);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(220,38,38,.35);
}

/* Hero secondary button */
.sox-btn-hero-secondary {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--sox-font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: 1.5px solid rgba(255,255,255,.22);
  border-radius: var(--sox-radius);
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
  background: transparent;
  color: var(--sox-white);
}

.sox-btn-hero-secondary:hover {
  border-color: var(--sox-white);
  background: rgba(255,255,255,.06);
}


/* ── 6. CARDS ─────────────────────────────────────────────── */

/* Standard content card */
.sox-card {
  background: var(--sox-bg-0);
  border: 1px solid var(--sox-gray-2);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
  transition: border-color .2s;
}

.sox-card:hover { border-color: var(--sox-gray-3); }

/* Card with red top accent bar */
.sox-card--accent::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--sox-red);
}

/* Card with red left border on hover */
.sox-card--left-accent {
  border-left: 3px solid transparent;
  transition: border-color .2s;
}

.sox-card--left-accent:hover { border-left-color: var(--sox-red); }

/* Card with red bottom bar on hover */
.sox-card--bottom-accent::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: transparent;
  transition: background .25s;
}

.sox-card--bottom-accent:hover::after { background: var(--sox-red); }

/* Stat metric card */
.sox-metric-card {
  background: var(--sox-bg-1);
  border: 1px solid var(--sox-gray-2);
  padding: 32px 28px;
  transition: border-color .2s;
}

.sox-metric-card:hover { border-color: var(--sox-gray-3); }

.sox-metric-icon {
  font-size: 28px;
  margin-bottom: 14px;
  display: block;
  transition: transform .2s;
}

.sox-metric-card:hover .sox-metric-icon { transform: scale(1.1); }

.sox-metric-title {
  font-family: var(--sox-font-display);
  font-size: 20px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--sox-ink);
  margin-bottom: 10px;
  letter-spacing: .03em;
}


/* ── 7. STAT CHIPS ────────────────────────────────────────── */
.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 100px;
  font-family: var(--sox-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .06em;
  border: 1px solid var(--sox-gray-2);
  background: var(--sox-bg-1);
  color: var(--sox-gray-5);
}

.chip-count {
  font-family: var(--sox-font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--sox-ink);
}

/* Chip color variants */
.stat-chip--red    { border-color: rgba(220,38,38,.3); background: rgba(220,38,38,.06); }
.stat-chip--red    .chip-count { color: var(--sox-red); }
.stat-chip--green  { border-color: rgba(16,185,129,.3); background: rgba(16,185,129,.06); }
.stat-chip--green  .chip-count { color: var(--sox-green); }
.stat-chip--yellow { border-color: rgba(245,158,11,.3); background: rgba(245,158,11,.06); }
.stat-chip--yellow .chip-count { color: var(--sox-yellow); }
.stat-chip--purple { border-color: rgba(124,58,237,.3); background: rgba(124,58,237,.06); }
.stat-chip--purple .chip-count { color: var(--sox-purple); }


/* ── 8. BULLET LISTS ──────────────────────────────────────── */
.sox-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sox-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 14px;
  color: var(--sox-gray-7);
}

.sox-bullets li::before {
  content: '→';
  color: var(--sox-red);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}


/* ── 9. NAVIGATION ────────────────────────────────────────── */
.sox-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 64px;
  background: rgba(13,17,23,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sox-nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.sox-nav-links a {
  color: var(--sox-gray-4);
  text-decoration: none;
  transition: color .2s;
}

.sox-nav-links a:hover { color: var(--sox-white); }

@media (max-width: 900px) {
  .sox-nav { padding: 0 20px; }
  .sox-nav-links { display: none; }
}


/* ── 10. FORM ELEMENTS ────────────────────────────────────── */
.sox-input {
  flex: 1;
  padding: 13px 18px;
  background: var(--sox-bg-0);
  border: 1px solid var(--sox-gray-2);
  border-radius: var(--sox-radius);
  font-size: 14px;
  color: var(--sox-ink);
  font-family: var(--sox-font-body);
  outline: none;
  transition: border-color .2s;
}

.sox-input::placeholder { color: var(--sox-gray-5); }
.sox-input:focus        { border-color: var(--sox-red); }

.sox-form-row {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto 16px;
}

@media (max-width: 600px) {
  .sox-form-row { flex-direction: column; }
}


/* ── 11. COMPARISON TABLE ─────────────────────────────────── */
.sox-compare-col {
  border: 1px solid var(--sox-gray-2);
  border-radius: var(--sox-radius-md);
  overflow: hidden;
  background: var(--sox-bg-0);
}

.sox-compare-col--ours {
  border-color: var(--sox-red);
  box-shadow: 0 0 0 1px var(--sox-red), 0 20px 48px rgba(220,38,38,.1);
  position: relative;
  z-index: 1;
}

.sox-compare-head {
  padding: 24px 30px;
  background: var(--sox-bg-2);
  border-bottom: 1px solid var(--sox-gray-2);
}

.sox-compare-col--ours .sox-compare-head { background: var(--sox-red); }

.sox-compare-item {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 14px 30px;
  border-bottom: 1px solid var(--sox-gray-2);
  font-size: 14px;
  line-height: 1.5;
  color: var(--sox-gray-7);
}

.sox-compare-item:last-child { border-bottom: none; }

.sox-icon-check {
  flex-shrink: 0;
  width: 21px; height: 21px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px; font-weight: 700;
  margin-top: 1px;
  background: rgba(16,185,129,.1);
  color: var(--sox-green);
}

.sox-icon-x {
  flex-shrink: 0;
  width: 21px; height: 21px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px; font-weight: 700;
  margin-top: 1px;
  background: rgba(239,68,68,.1);
  color: #ef4444;
}


/* ── 12. PARTNER / PROOF BAND ─────────────────────────────── */
.sox-partner-badge {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  padding: 28px 40px;
  text-align: center;
}

.sox-partner-tag {
  font-family: var(--sox-font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #4b5563;
  border: 1px solid #1f2937;
  padding: 5px 14px;
  border-radius: 2px;
}


/* ── 13. FOOTER ───────────────────────────────────────────── */
.sox-footer {
  background: var(--sox-ink-hero);
  border-top: 1px solid #1f2937;
  padding: 64px 0 40px;
}

.sox-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.sox-footer-col-title {
  font-family: var(--sox-font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #4b5563;
  margin-bottom: 18px;
}

.sox-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.sox-footer-links a {
  font-size: 14px;
  color: var(--sox-gray-5);
  text-decoration: none;
  transition: color .2s;
}

.sox-footer-links a:hover { color: var(--sox-white); }

.sox-footer-bottom {
  border-top: 1px solid #1f2937;
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.sox-footer-badge {
  font-family: var(--sox-font-mono);
  font-size: 10px;
  letter-spacing: .09em;
  color: #4b5563;
  border: 1px solid #1f2937;
  padding: 4px 10px;
  border-radius: 2px;
}

@media (max-width: 900px) {
  .sox-footer-grid { grid-template-columns: 1fr 1fr; }
  .sox-footer-bottom { flex-direction: column; align-items: flex-start; }
}


/* ── 14. TICKER / MARQUEE ─────────────────────────────────── */
.sox-ticker {
  background: var(--sox-red);
  padding: 13px 0;
  overflow: hidden;
  white-space: nowrap;
}

.sox-ticker-inner {
  display: inline-flex;
  animation: soxTickerScroll 32s linear infinite;
}

@keyframes soxTickerScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.sox-ticker-item {
  font-family: var(--sox-font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sox-white);
  padding: 0 44px;
  display: inline-flex;
  align-items: center;
  gap: 44px;
}

.sox-ticker-item::after {
  content: '◆';
  font-size: 7px;
  opacity: .55;
}


/* ── 15. FEATURE ROW ──────────────────────────────────────── */
.sox-feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--sox-gray-2);
  border-radius: var(--sox-radius-md);
  overflow: hidden;
}

.sox-feature-row--flip { direction: rtl; }
.sox-feature-row--flip > * { direction: ltr; }

.sox-feature-text {
  padding: 52px;
  background: var(--sox-bg-0);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sox-feature-visual {
  background: var(--sox-ink-hero);
  position: relative;
  min-height: 380px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sox-feature-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 1024px) {
  .sox-feature-row { grid-template-columns: 1fr; }
  .sox-feature-row--flip { direction: ltr; }
  .sox-feature-visual { min-height: 280px; }
}


/* ── 16. ANIMATIONS ───────────────────────────────────────── */
@keyframes soxFadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sox-fu   { opacity: 0; animation: soxFadeUp .65s ease forwards; }
.sox-d1   { animation-delay: .1s; }
.sox-d2   { animation-delay: .25s; }
.sox-d3   { animation-delay: .4s; }
.sox-d4   { animation-delay: .55s; }
.sox-d5   { animation-delay: .7s; }


/* ── 17. UTILITY CLASSES ──────────────────────────────────── */
.sox-text-center  { text-align: center; }
.sox-text-white   { color: var(--sox-white); }
.sox-text-muted   { color: var(--sox-gray-5); }
.sox-text-red     { color: var(--sox-red); }
.sox-mb-sm        { margin-bottom: 16px; }
.sox-mb-md        { margin-bottom: 24px; }
.sox-mb-lg        { margin-bottom: 48px; }
.sox-divider      { width: 72px; height: 4px; background: var(--sox-red); margin: 32px 0; }
.sox-divider--center { margin: 32px auto; }
