/* ========== RESET & TOKENS ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --sb-c-primary: #0A1A2F;
  --sb-c-neon: #00FF88;
  --sb-c-ember: #FF4500;
  --sb-c-gold: #FFD700;
  --sb-c-ink: #08080C;
  --sb-c-panel: #12121A;
  --sb-c-white: #FFFFFF;
  --sb-c-gray: #B0B0C0;
  --sb-c-muted: #707080;
  --sb-c-line: #2A2A35;
  --sb-font-display: 'Impact', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --sb-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --sb-font-data: 'Roboto Mono', 'SFMono-Regular', 'Menlo', monospace;
  --sb-skew: -10deg;
  --sb-radius: 14px;
  --sb-container-w: 1200px;
  --sb-header-h: 68px;
  --sb-transition: 0.22s cubic-bezier(0.22, 0.61, 0.36, 1);
  --sb-shadow: 0 18px 44px rgba(0, 0, 0, 0.35);
}

html {
  scroll-padding-top: calc(var(--sb-header-h) + 24px);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-x: clip;
  font-family: var(--sb-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--sb-c-gray);
  background-color: var(--sb-c-ink);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-family: var(--sb-font-display);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--sb-c-white);
}

h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
h2 { font-size: clamp(1.5rem, 3.6vw, 2rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p {
  margin: 0 0 1em;
}

a {
  color: var(--sb-c-neon);
  text-decoration: none;
  transition: color var(--sb-transition);
}

a:hover {
  color: var(--sb-c-white);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  padding: 0;
  margin: 0;
}

::selection {
  background: var(--sb-c-neon);
  color: var(--sb-c-ink);
}

:focus-visible {
  outline: 2px solid var(--sb-c-neon);
  outline-offset: 3px;
  border-radius: 2px;
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--sb-c-ink); }
::-webkit-scrollbar-thumb {
  background: var(--sb-c-line);
  border: 2px solid var(--sb-c-ink);
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover { background: var(--sb-c-muted); }

/* ========== LAYOUT UTILITIES ========== */
.sb-container {
  width: min(100% - clamp(24px, 6vw, 56px), var(--sb-container-w));
  margin-inline: auto;
}

#main-content {
  scroll-margin-top: calc(var(--sb-header-h) + 24px);
}

main:focus {
  outline: none;
}

.sb-section {
  position: relative;
  padding-block: clamp(48px, 8vw, 92px);
}

.sb-section--ink {
  background-color: var(--sb-c-ink);
}

.sb-section--deep {
  background-color: var(--sb-c-primary);
}

.sb-section--panel {
  background-color: var(--sb-c-panel);
}

.sb-section--deep::before,
.sb-section--panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.22), transparent);
  pointer-events: none;
}

.sb-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2.4vw, 28px);
}

/* ========== SKIP LINK & HEADER ========== */
.sb-skip {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 3000;
  padding: 10px 18px;
  background: var(--sb-c-neon);
  color: var(--sb-c-ink);
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.875rem;
  transform: translateY(-240%);
  transition: transform 0.2s ease;
}

.sb-skip:focus {
  transform: translateY(0);
  color: var(--sb-c-ink);
}

.sb-header {
  position: sticky;
  top: 0;
  z-index: 900;
  padding: 12px clamp(10px, 2.6vw, 28px) 0;
  pointer-events: none;
}

.sb-header__inner {
  position: relative;
  max-width: var(--sb-container-w);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 10px 8px 18px;
  background: rgba(10, 26, 47, 0.88);
  border: 1px solid var(--sb-c-line);
  border-radius: 999px;
  box-shadow: var(--sb-shadow), inset 0 0 0 1px rgba(0, 255, 136, 0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  pointer-events: auto;
}

.sb-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sb-c-neon), var(--sb-c-gold) 55%, var(--sb-c-ember));
  transform: scaleX(0);
  transform-origin: 0 50%;
  opacity: 0.85;
  pointer-events: none;
  z-index: 910;
}

/* ========== LOGO ========== */
.sb-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: inherit;
}

.sb-logo:hover {
  color: inherit;
}

.sb-logo__glyph {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--sb-c-neon) 0%, #5CFFB0 60%, var(--sb-c-gold) 130%);
  color: var(--sb-c-ink);
  font-family: var(--sb-font-display);
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%, 0 32%);
  box-shadow: 0 0 18px rgba(0, 255, 136, 0.35), inset -2px -2px 0 rgba(0, 0, 0, 0.12);
}

.sb-logo__name {
  display: flex;
  flex-direction: column;
  font-family: var(--sb-font-display);
  font-size: 1.18rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 0.9;
  text-transform: uppercase;
  color: var(--sb-c-white);
  text-shadow: 0 0 14px rgba(0, 255, 136, 0.22);
}

.sb-logo__sub {
  margin-top: 5px;
  font-family: var(--sb-font-data);
  font-size: 0.54rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--sb-c-muted);
}

/* ========== NAVIGATION ========== */
.sb-nav {
  margin-inline-start: auto;
  min-width: 0;
}

.sb-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2px;
  list-style: none;
}

.sb-nav__link {
  display: block;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--sb-c-gray);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color var(--sb-transition), background-color var(--sb-transition), border-color var(--sb-transition), box-shadow var(--sb-transition);
}

.sb-nav__link:hover {
  color: var(--sb-c-white);
  background: rgba(0, 255, 136, 0.07);
}

.sb-nav__link[aria-current="page"] {
  color: var(--sb-c-ink);
  background: var(--sb-c-neon);
  border-color: var(--sb-c-neon);
  box-shadow: 0 0 16px rgba(0, 255, 136, 0.32);
}

.sb-header__cta {
  flex-shrink: 0;
}

.sb-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--sb-c-line);
  border-radius: 999px;
  color: var(--sb-c-gray);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--sb-transition), border-color var(--sb-transition);
}

.sb-nav-toggle:hover {
  color: var(--sb-c-white);
  border-color: var(--sb-c-neon);
}

.sb-nav-toggle__icon {
  position: relative;
  display: block;
  width: 16px;
  height: 12px;
}

.sb-nav-toggle__icon::before,
.sb-nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--sb-transition), top var(--sb-transition), bottom var(--sb-transition);
}

.sb-nav-toggle__icon::before {
  top: 0;
}

.sb-nav-toggle__icon::after {
  bottom: 0;
}

.sb-nav-toggle[aria-expanded="true"] .sb-nav-toggle__icon::before {
  top: 5px;
  transform: rotate(45deg);
}

.sb-nav-toggle[aria-expanded="true"] .sb-nav-toggle__icon::after {
  bottom: 5px;
  transform: rotate(-45deg);
}

.sb-nav-toggle__label {
  letter-spacing: 0.08em;
}

/* ========== BUTTONS ========== */
.sb-btn {
  --btn-color: var(--sb-c-neon);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--sb-font-body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--btn-color);
  background: transparent;
  border: 1px solid var(--btn-color);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  -webkit-clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--sb-transition), color var(--sb-transition), border-color var(--sb-transition), filter var(--sb-transition);
}

.sb-btn:hover {
  background: var(--btn-color);
  color: var(--sb-c-ink);
}

.sb-btn:active {
  filter: brightness(0.85);
}

.sb-btn--neon { --btn-color: var(--sb-c-neon); }
.sb-btn--ember { --btn-color: var(--sb-c-ember); }
.sb-btn--gold { --btn-color: var(--sb-c-gold); }

.sb-btn--ghost {
  background: rgba(255, 255, 255, 0.04);
}

.sb-btn--compact {
  padding: 9px 16px;
  font-size: 0.8rem;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  -webkit-clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

/* ========== REVEAL MOTION ========== */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: calc(var(--reveal-order, 0) * 80ms);
}

html.js [data-reveal="left"] {
  transform: translateX(-24px);
}

html.js [data-reveal="right"] {
  transform: translateX(24px);
}

html.js [data-reveal="scale"] {
  transform: scale(0.96);
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ========== CONTENT COMPONENTS ========== */
.sb-overline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sb-font-data);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sb-c-neon);
}

.sb-overline::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--sb-c-neon);
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.6);
}

.sb-title {
  display: block;
  margin: 0 0 16px;
  font-family: var(--sb-font-display);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--sb-c-white);
  transform: skewX(var(--sb-skew));
  transform-origin: left center;
}

.sb-title .sb-accent {
  color: var(--sb-c-neon);
}

.sb-subtitle {
  max-width: 56ch;
  margin: 0 0 28px;
  color: var(--sb-c-muted);
}

.sb-rail {
  display: none;
  flex: 0 0 auto;
  align-self: stretch;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--sb-font-data);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--sb-c-muted);
}

@media (min-width: 768px) {
  .sb-rail {
    display: block;
  }
}

.sb-section-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: clamp(24px, 4vw, 40px);
  padding-left: 8px;
}

.sb-section-head .sb-title {
  flex: 1 1 auto;
  margin-bottom: 0;
}

.sb-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  font-family: var(--sb-font-data);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.sb-breadcrumbs__item a {
  color: var(--sb-c-muted);
  text-decoration: none;
}

.sb-breadcrumbs__item a:hover {
  color: var(--sb-c-neon);
}

.sb-breadcrumbs__sep {
  color: var(--sb-c-line);
  margin-inline: 4px;
}

.sb-breadcrumbs__item[aria-current="page"] {
  color: var(--sb-c-white);
}

.sb-card {
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(155deg, rgba(18, 18, 26, 0.96), rgba(10, 26, 47, 0.72));
  border: 1px solid var(--sb-c-line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  -webkit-clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: border-color var(--sb-transition), transform var(--sb-transition);
}

.sb-card:hover {
  border-color: rgba(0, 255, 136, 0.35);
}

.sb-card--deep {
  background: linear-gradient(155deg, var(--sb-c-primary), rgba(10, 26, 47, 0.55));
}

.sb-card--flat {
  clip-path: none;
  border-radius: var(--sb-radius);
}

.sb-card__title {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.sb-card__text {
  font-size: 0.9rem;
  color: var(--sb-c-gray);
}

.sb-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sb-stat__num {
  font-family: var(--sb-font-data);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--sb-c-neon);
  font-variant-numeric: tabular-nums;
}

.sb-stat__num--ember {
  color: var(--sb-c-ember);
}

.sb-stat__num--gold {
  color: var(--sb-c-gold);
}

.sb-stat__label {
  color: var(--sb-c-muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.sb-tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--sb-c-line);
  border-radius: 999px;
  font-family: var(--sb-font-data);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--sb-c-gray);
}

.sb-tag--neon {
  color: var(--sb-c-neon);
  border-color: rgba(0, 255, 136, 0.4);
}

.sb-tag--gold {
  color: var(--sb-c-gold);
  border-color: rgba(255, 215, 0, 0.4);
}

.sb-divider {
  position: relative;
  height: 1px;
  margin: clamp(32px, 6vw, 60px) 0;
  background: linear-gradient(90deg, var(--sb-c-line), transparent);
  border: 0;
}

.sb-divider::after {
  content: "◆";
  position: absolute;
  top: -9px;
  right: 0;
  font-size: 0.72rem;
  color: var(--sb-c-neon);
}

.sb-strike {
  height: 24px;
  background: repeating-linear-gradient(115deg, transparent 0 18px, rgba(0, 255, 136, 0.09) 18px 20px);
}

.sb-frame {
  position: relative;
  padding: clamp(20px, 4vw, 40px);
  background: linear-gradient(145deg, rgba(10, 26, 47, 0.9), rgba(8, 8, 12, 0.6));
  border: 1px solid var(--sb-c-line);
  box-shadow: var(--sb-shadow);
}

.sb-frame::before,
.sb-frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.sb-frame::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--sb-c-neon);
  border-left: 2px solid var(--sb-c-neon);
}

.sb-frame::after {
  top: -1px;
  right: -1px;
  border-top: 2px solid var(--sb-c-neon);
  border-right: 2px solid var(--sb-c-neon);
}

.sb-frame__corner {
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 18px;
  height: 18px;
  border-right: 2px solid var(--sb-c-neon);
  border-bottom: 2px solid var(--sb-c-neon);
  pointer-events: none;
}

.sb-frame__corner--left {
  right: auto;
  left: -1px;
  border-right: 0;
  border-bottom: 2px solid var(--sb-c-ember);
  border-left: 2px solid var(--sb-c-ember);
}

.sb-media {
  position: relative;
  display: block;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0, 255, 136, 0.05), transparent 40%),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 12px),
    var(--sb-c-panel);
  border: 1px solid var(--sb-c-line);
}

.sb-media::after {
  content: "IMG·DATA";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--sb-font-data);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: rgba(176, 176, 192, 0.35);
  pointer-events: none;
}

.sb-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sb-media--landscape { aspect-ratio: 16 / 9; }
.sb-media--portrait { aspect-ratio: 4 / 3; }
.sb-media--square { aspect-ratio: 1 / 1; }

.sb-media--motion {
  background:
    repeating-linear-gradient(-25deg, rgba(0, 255, 136, 0.08) 0 10px, transparent 10px 26px),
    linear-gradient(135deg, var(--sb-c-primary), var(--sb-c-ink));
}

.sb-index-list {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--sb-c-line);
}

.sb-index-list__item {
  border-bottom: 1px solid var(--sb-c-line);
  transition: background-color var(--sb-transition);
}

.sb-index-list__item:hover {
  background: rgba(0, 255, 136, 0.06);
}

.sb-index-list__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  color: var(--sb-c-gray);
  text-decoration: none;
}

.sb-index-list__link:hover {
  color: var(--sb-c-gray);
}

.sb-index-list__index {
  font-family: var(--sb-font-data);
  font-size: 0.75rem;
  color: var(--sb-c-neon);
}

.sb-index-list__link strong {
  color: var(--sb-c-white);
  font-weight: 700;
}

.sb-index-list__arrow {
  font-family: var(--sb-font-data);
  color: var(--sb-c-muted);
  transition: transform var(--sb-transition), color var(--sb-transition);
}

.sb-index-list__link:hover .sb-index-list__arrow {
  color: var(--sb-c-neon);
  transform: translateX(4px);
}

.sb-prose {
  max-width: 74ch;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--sb-c-gray);
}

.sb-prose p {
  margin: 0 0 1.25em;
}

.sb-prose h2,
.sb-prose h3 {
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  transform: skewX(var(--sb-skew));
}

.sb-data-table {
  width: 100%;
  margin: 20px 0;
  border: 1px solid var(--sb-c-line);
  border-collapse: collapse;
  background: rgba(18, 18, 26, 0.5);
  font-size: 0.9rem;
}

.sb-data-table caption {
  padding-bottom: 10px;
  text-align: left;
  font-family: var(--sb-font-data);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sb-c-neon);
}

.sb-data-table th {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--sb-font-data);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sb-c-neon);
  background: rgba(0, 255, 136, 0.05);
  border-bottom: 1px solid var(--sb-c-line);
  white-space: nowrap;
}

.sb-data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(42, 42, 53, 0.55);
  color: var(--sb-c-gray);
  font-variant-numeric: tabular-nums;
}

.sb-data-table tbody tr {
  transition: background-color var(--sb-transition);
}

.sb-data-table tbody tr:hover {
  background: rgba(0, 255, 136, 0.05);
}

.sb-data-table tr:last-child td {
  border-bottom: 0;
}

.sb-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
  border-left: 1px solid var(--sb-c-line);
}

.sb-timeline__item {
  position: relative;
  padding: 0 0 26px;
}

.sb-timeline__item::before {
  content: attr(data-index);
  position: absolute;
  left: calc(-28px - 9px);
  top: 0;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--sb-c-neon);
  color: var(--sb-c-ink);
  font-family: var(--sb-font-data);
  font-size: 0.6rem;
  font-weight: 700;
}

.sb-timeline__item:last-child {
  padding-bottom: 0;
}

.sb-field {
  position: relative;
  min-height: 180px;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
}

.sb-field::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(70%, 320px);
  aspect-ratio: 1;
  border: 1px solid rgba(0, 255, 136, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.sb-field::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  background: rgba(255, 255, 255, 0.05);
}

.sb-price {
  font-family: var(--sb-font-data);
  font-weight: 700;
  font-size: 1.05em;
  color: var(--sb-c-ember);
}

/* ========== FOOTER ========== */
.sb-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 88px);
  padding: clamp(48px, 7vw, 80px) 0 32px;
  background: var(--sb-c-ink);
  border-top: 1px solid var(--sb-c-line);
  overflow: hidden;
}

.sb-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 5%, var(--sb-c-neon) 30%, var(--sb-c-gold) 55%, var(--sb-c-ember) 78%, transparent 95%);
  opacity: 0.75;
}

.sb-footer::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.07), transparent 68%);
  pointer-events: none;
}

.sb-footer a {
  color: var(--sb-c-gray);
  text-decoration: none;
  transition: color var(--sb-transition);
}

.sb-footer a:hover {
  color: var(--sb-c-neon);
}

.sb-footer__top {
  display: grid;
  grid-template-columns: 4.2fr 1.8fr 1.8fr 2fr 2.4fr;
  gap: clamp(24px, 4vw, 40px);
  margin-bottom: clamp(32px, 5vw, 56px);
}

.sb-footer__brand .sb-logo {
  margin-bottom: 14px;
}

.sb-footer__intro {
  max-width: 34ch;
  margin-bottom: 12px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--sb-c-muted);
}

.sb-footer__trust {
  display: block;
  max-width: 38ch;
  padding: 10px 14px;
  border-left: 2px solid var(--sb-c-neon);
  background: rgba(0, 255, 136, 0.05);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--sb-c-gray);
}

.sb-footer__title {
  margin: 0 0 14px;
  font-family: var(--sb-font-data);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sb-c-white);
}

.sb-footer__title::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin-top: 8px;
  background: var(--sb-c-neon);
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.4);
}

.sb-footer__list {
  display: grid;
  gap: 8px;
  list-style: none;
  font-size: 0.875rem;
}

.sb-footer__list span {
  color: var(--sb-c-muted);
}

.sb-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--sb-c-line);
  font-family: var(--sb-font-data);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--sb-c-muted);
}

/* ========== RESPONSIVE ========== */
@media (min-width: 861px) {
  .sb-grid .sb-col-6 { grid-column: span 6; }
  .sb-grid .sb-col-4 { grid-column: span 4; }
  .sb-grid .sb-col-3 { grid-column: span 3; }
  .sb-grid .sb-col-8 { grid-column: span 8; }
}

@media (max-width: 900px) {
  .sb-header {
    padding-top: 6px;
  }

  .sb-header__inner {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 18px;
  }

  .sb-header__cta {
    display: none;
  }

  .sb-nav-toggle {
    display: inline-flex;
  }

  .sb-nav {
    order: 8;
    flex-basis: 100%;
    display: none;
  }

  .sb-nav[data-open] {
    display: block;
  }

  .sb-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin-top: 8px;
    padding: 10px 4px 4px;
    border-top: 1px dashed var(--sb-c-line);
  }

  .sb-nav__link {
    padding: 12px 16px;
    text-align: center;
    font-size: 1rem;
  }

  .sb-nav__link[aria-current="page"] {
    background: transparent;
    border-color: rgba(0, 255, 136, 0.35);
    color: var(--sb-c-neon);
    box-shadow: none;
  }
}

@media (max-width: 860px) {
  .sb-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) and (min-width: 521px) {
  .sb-footer__top {
    grid-template-columns: 1fr 1fr;
  }

  .sb-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .sb-footer__top {
    grid-template-columns: 1fr;
  }

  .sb-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 400px) {
  .sb-header__inner {
    border-radius: 14px;
  }

  .sb-logo__sub {
    display: none;
  }
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .sb-progress {
    display: none;
  }

  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}