/* ============ RESET ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink-dark);
  background-color: var(--paper-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

ul[class],
ol[class] {
  list-style: none;
  padding: 0;
  margin: 0;
}

hr {
  border: 0;
  border-top: 2px solid rgba(10, 37, 64, 0.15);
  margin: 2rem 0;
}

::selection {
  background: var(--brand-green);
  color: var(--paper-light);
}

/* ============ CSS VARIABLES ============ */
:root {
  --brand-green: #00A651;
  --deep-blue: #0A2540;
  --gold-accent: #D4AF37;
  --paper-light: #F8F4EC;
  --ink-dark: #1A1918;
  --green-deep: #007A3D;
  --blue-bright: #1E4A6F;
  --gold-bright: #F0C330;

  --font-heading: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;

  --header-height: 76px;
  --container-max: 1240px;
  --container-pad: clamp(20px, 4vw, 48px);

  --ease-out-expo: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 300ms;

  --shadow-hard: 8px 8px 0 rgba(10, 37, 64, 0.14);
  --shadow-hard-dark: 8px 8px 0 rgba(0, 0, 0, 0.35);
  --shadow-hard-green: 8px 8px 0 rgba(0, 166, 81, 0.25);
}

/* ============ BASE TYPOGRAPHY ============ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.18;
  color: var(--ink-dark);
}

h1 { font-size: clamp(2.25rem, 5vw, 4.25rem); }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.625rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.625rem); }
h4 { font-size: 1.125rem; }

p {
  margin-block: 0 1em;
}

a {
  color: var(--brand-green);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

strong,
b {
  font-weight: 700;
}

#main-content {
  scroll-margin-top: calc(var(--header-height) + 12px);
}

/* ============ UTILITY ============ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.text-center { text-align: center; }
.text-green { color: var(--brand-green); }
.text-gold { color: var(--gold-accent); }
.text-blue { color: var(--deep-blue); }
.font-mono { font-family: var(--font-mono); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container-sm {
  max-width: 880px;
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.page-section {
  padding-block: clamp(2.75rem, 7vw, 5.5rem);
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(1.75rem, 4vw, 3rem);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-green);
  margin-bottom: 0.875rem;
}

.section-label::before {
  content: '';
  width: 2.25rem;
  height: 4px;
  background: var(--brand-green);
  transform: skewX(-20deg);
  flex: none;
}

.section-title {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  color: var(--ink-dark);
}

.section-desc {
  margin-top: 0.75rem;
  color: rgba(26, 25, 24, 0.72);
  font-size: 1.0625rem;
}

.chapter-index {
  font-family: var(--font-mono);
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 0.9;
  color: var(--brand-green);
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.chapter-index-outline {
  color: transparent;
  -webkit-text-stroke: 2px rgba(0, 166, 81, 0.6);
}

.title-skew {
  display: inline-block;
  transform: skewX(-8deg);
}

.title-skew > span {
  display: inline-block;
  transform: skewX(8deg);
}

.speed-lines {
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(0, 166, 81, 0.07) 0,
    rgba(0, 166, 81, 0.07) 2px,
    transparent 2px,
    transparent 16px
  );
}

.speed-lines-dark {
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(248, 244, 236, 0.045) 0,
    rgba(248, 244, 236, 0.045) 1px,
    transparent 1px,
    transparent 12px
  );
}

.bg-grid {
  background-image:
    linear-gradient(rgba(10, 37, 64, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 37, 64, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ============ PROSE ============ */
.prose {
  max-width: 72ch;
  font-size: 1rem;
}

.prose p {
  margin-bottom: 1.25em;
}

.prose h2 {
  margin-top: 2rem;
}

.prose h3 {
  margin-top: 1.5rem;
}

.prose a {
  color: var(--brand-green);
  font-weight: 600;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.65rem;
  border: 2px solid var(--ink-dark);
  background: var(--paper-light);
  color: var(--ink-dark);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.2);
  transition:
    background-color var(--duration) var(--ease-out-expo),
    color var(--duration) var(--ease-out-expo),
    box-shadow var(--duration) var(--ease-out-expo),
    transform var(--duration) var(--ease-out-expo),
    border-color var(--duration) var(--ease-out-expo);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.24);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.24);
}

.btn-primary {
  background: var(--brand-green);
  border-color: var(--green-deep);
  color: var(--paper-light);
  box-shadow: 5px 5px 0 var(--green-deep);
}

.btn-primary:hover {
  background: var(--green-deep);
  box-shadow: 7px 7px 0 var(--green-deep);
}

.btn-gold {
  background: var(--gold-accent);
  border-color: #A88518;
  color: var(--ink-dark);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.25);
}

.btn-gold:hover {
  background: var(--gold-bright);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.28);
}

.btn-lg {
  font-size: 1.0625rem;
  padding: 1rem 2rem;
}

.btn-sm {
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
}

.btn-skew {
  transform: skewX(-8deg);
}

.btn-skew > span {
  display: inline-block;
  transform: skewX(8deg);
}

/* ============ BREADCRUMBS ============ */
.breadcrumbs {
  padding: 1.25rem 0;
  font-size: 0.875rem;
  color: var(--blue-bright);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumbs li + li::before {
  content: '/';
  margin-right: 0.375rem;
  color: var(--gold-accent);
}

.breadcrumbs a {
  color: var(--blue-bright);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--deep-blue);
  text-decoration: underline;
}

.breadcrumbs [aria-current="page"] {
  color: var(--ink-dark);
  font-weight: 600;
}

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--deep-blue);
  background-image: repeating-linear-gradient(
    135deg,
    rgba(248, 244, 236, 0.022) 0,
    rgba(248, 244, 236, 0.022) 1px,
    transparent 1px,
    transparent 12px
  );
  border-bottom: 3px solid var(--brand-green);
  transition: box-shadow var(--duration) var(--ease-out-expo);
}

.site-header::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 120px;
  height: 3px;
  background: var(--gold-accent);
}

.site-header[data-scrolled] {
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--paper-light);
  flex: none;
}

.brand-icon {
  width: 36px;
  height: 36px;
  flex: none;
}

.brand-text {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--paper-light);
}

.brand-suffix {
  color: var(--gold-accent);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 2px solid var(--paper-light);
  cursor: pointer;
  flex: none;
  transition:
    border-color var(--duration) var(--ease-out-expo),
    background-color var(--duration) var(--ease-out-expo);
}

.nav-toggle:hover {
  border-color: var(--gold-accent);
}

.nav-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--paper-light);
  transition:
    transform 320ms var(--ease-out-expo),
    opacity 220ms ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.4);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============ NAVIGATION ============ */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  max-height: calc(100vh - var(--header-height) - 24px);
  overflow-y: auto;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 0.7rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(248, 244, 236, 0.82);
  text-decoration: none;
  white-space: nowrap;
  transition: color 220ms var(--ease-out-expo);
}

.site-nav a:hover {
  color: var(--paper-light);
}

.site-nav a[aria-current="page"] {
  color: var(--paper-light);
  font-weight: 700;
}

.site-nav a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.2rem;
  height: 3px;
  background: var(--brand-green);
  transform: skewX(-24deg);
}

.nav-cta {
  margin-left: 0.6rem;
  padding: 0.55rem 1.1rem;
  background: var(--brand-green);
  border: 2px solid var(--green-deep);
  color: var(--paper-light);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.32);
  transform: skewX(-8deg);
  transition:
    background-color 220ms var(--ease-out-expo),
    color 220ms var(--ease-out-expo),
    box-shadow 220ms var(--ease-out-expo),
    transform 220ms var(--ease-out-expo);
}

.nav-cta > span {
  display: inline-block;
  transform: skewX(8deg);
}

.nav-cta:hover {
  background: var(--green-deep);
  color: var(--paper-light);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.32);
  transform: skewX(-8deg) translateY(-1px);
}

/* ============ SKIP LINK ============ */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 2000;
  background: var(--gold-bright);
  color: var(--ink-dark);
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
}

.skip-link:focus {
  left: 0;
  top: 0;
  outline: 2px solid var(--ink-dark);
}

/* ============ FOOTER ============ */
.site-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  background: var(--deep-blue);
  color: rgba(248, 244, 236, 0.72);
  border-top: 4px solid var(--brand-green);
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  background: rgba(0, 166, 81, 0.09);
  transform: rotate(35deg);
  pointer-events: none;
}

.site-footer::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    115deg,
    rgba(248, 244, 236, 0.025) 0,
    rgba(248, 244, 236, 0.025) 1px,
    transparent 1px,
    transparent 14px
  );
  pointer-events: none;
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

.footer-top {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.8fr;
  gap: 2.5rem 3rem;
  padding-block: 3.5rem 2.75rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--paper-light);
  text-decoration: none;
  margin-bottom: 1rem;
}

.footer-brand-icon {
  width: 30px;
  height: 30px;
  flex: none;
}

.footer-trust {
  max-width: 34ch;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(248, 244, 236, 0.72);
}

.footer-col {
  min-width: 0;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-accent);
  margin-bottom: 1.1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(212, 175, 55, 0.25);
}

.footer-col a {
  display: block;
  padding: 0.3rem 0;
  color: rgba(248, 244, 236, 0.72);
  font-size: 0.9375rem;
  text-decoration: none;
  transition:
    color 220ms var(--ease-out-expo),
    transform 220ms var(--ease-out-expo);
}

.footer-col a:hover {
  color: var(--brand-green);
}

.footer-contact p {
  margin: 0 0 0.45rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.contact-label {
  display: inline-block;
  margin-right: 0.375rem;
  color: var(--gold-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem 2rem;
  padding-block: 1.25rem;
  border-top: 1px solid rgba(248, 244, 236, 0.15);
  font-size: 0.8125rem;
  color: rgba(248, 244, 236, 0.62);
}

.footer-icp {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ============ SCROLL PROGRESS & BACK TOP ============ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2000;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-green), var(--gold-bright));
  pointer-events: none;
}

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--brand-green);
  color: var(--paper-light);
  border: 2px solid var(--ink-dark);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.3);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition:
    opacity 300ms var(--ease-out-expo),
    transform 300ms var(--ease-out-expo),
    visibility 300ms,
    background-color 220ms ease;
}

.back-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--green-deep);
}

/* ============ CARDS ============ */
.card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--paper-light);
  border: 2px solid var(--ink-dark);
  box-shadow: var(--shadow-hard);
  transition:
    transform var(--duration) var(--ease-out-expo),
    box-shadow var(--duration) var(--ease-out-expo);
}

.card:hover {
  transform: translateY(-5px) rotate(1deg);
  box-shadow: 12px 12px 0 rgba(10, 37, 64, 0.18);
}

.card-dark {
  background: var(--deep-blue);
  border-color: var(--deep-blue);
  color: var(--paper-light);
}

.card-dark h1,
.card-dark h2,
.card-dark h3,
.card-dark h4 {
  color: var(--paper-light);
}

.card-flat {
  box-shadow: none;
  border-width: 1px;
}

.card-flat:hover {
  box-shadow: var(--shadow-hard);
}

.card-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.card-body {
  font-size: 0.9375rem;
}

/* ============ GRID ============ */
.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* ============ MEDIA FRAME ============ */
.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--blue-bright);
  border: 2px solid var(--ink-dark);
  box-shadow: var(--shadow-hard);
}

.media-frame img,
.media-frame picture,
.media-frame svg {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame-16-9 { aspect-ratio: 16 / 9; }
.media-frame-4-3 { aspect-ratio: 4 / 3; }
.media-frame-3-2 { aspect-ratio: 3 / 2; }
.media-frame-1-1 { aspect-ratio: 1 / 1; }

.media-frame-live::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      115deg,
      transparent 30%,
      rgba(0, 166, 81, 0.08) 30%,
      rgba(0, 166, 81, 0.08) 31%,
      transparent 31%,
      transparent 70%,
      rgba(10, 37, 64, 0.4) 70%
    );
  pointer-events: none;
}

/* ============ TAGS & BADGES ============ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.71875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--gold-bright);
  color: var(--ink-dark);
  border: 1px solid var(--ink-dark);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.18);
}

.tag-green {
  background: var(--brand-green);
  color: var(--paper-light);
  border-color: var(--green-deep);
}

.data-badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: var(--deep-blue);
  color: var(--paper-light);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-left: 4px solid var(--gold-accent);
  font-variant-numeric: tabular-nums;
}

/* ============ DATA TABLE ============ */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper-light);
  border: 2px solid var(--ink-dark);
  box-shadow: var(--shadow-hard);
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
}

.data-table th {
  background: var(--deep-blue);
  color: var(--paper-light);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 3px solid var(--brand-green);
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(10, 37, 64, 0.12);
}

.data-table tr:nth-child(even) td {
  background: rgba(0, 166, 81, 0.05);
}

.data-table tbody tr:hover td {
  background: rgba(10, 37, 64, 0.04);
}

/* ============ ACCORDION ============ */
.accordion {
  background: var(--paper-light);
  border: 2px solid var(--ink-dark);
  box-shadow: var(--shadow-hard);
  margin-bottom: 1rem;
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1.125rem 1.375rem;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  color: var(--ink-dark);
  cursor: pointer;
}

.accordion-trigger::after {
  content: '+';
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  background: var(--deep-blue);
  color: var(--paper-light);
  transition:
    transform var(--duration) var(--ease-out-expo),
    background-color var(--duration) ease;
}

.accordion[data-open="true"] .accordion-trigger::after {
  transform: rotate(45deg);
  background: var(--brand-green);
}

.accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 420ms var(--ease-out-expo);
}

.accordion[data-open="true"] .accordion-panel {
  grid-template-rows: 1fr;
}

.accordion-panel-inner {
  overflow: hidden;
  padding-inline: 1.375rem;
}

.accordion-panel-inner > *:last-child {
  padding-bottom: 1.25rem;
}

/* ============ PAGE HERO ============ */
.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep-blue);
  color: var(--paper-light);
  border-bottom: 4px solid var(--brand-green);
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  background: linear-gradient(
    115deg,
    transparent 30%,
    rgba(0, 166, 81, 0.18) 30%,
    rgba(0, 166, 81, 0.18) 31%,
    transparent 31%,
    transparent 62%,
    rgba(212, 175, 55, 0.14) 62%
  );
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1,
.page-hero h2,
.page-hero h3 {
  color: var(--paper-light);
}

.page-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-accent);
}

.page-hero-eyebrow::before {
  content: '';
  width: 2.5rem;
  height: 4px;
  background: var(--brand-green);
  transform: skewX(-24deg);
}

.page-hero-desc {
  max-width: 58ch;
  color: rgba(248, 244, 236, 0.78);
  font-size: 1.0625rem;
}

/* ============ REVEAL ============ */
@media (prefers-reduced-motion: no-preference) {
  .has-js [data-reveal] {
    opacity: 0;
    transform: translate(28px, 28px);
    transition:
      opacity 700ms var(--ease-out-expo),
      transform 700ms var(--ease-out-expo);
    transition-delay: var(--reveal-delay, 0s);
  }

  .has-js [data-reveal][data-revealed] {
    opacity: 1;
    transform: translate(0, 0);
  }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 980px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand-col {
    grid-column: 1 / -1;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--deep-blue);
    border-bottom: 3px solid var(--brand-green);
    padding: 0.5rem clamp(20px, 4vw, 48px) 1.25rem;
    box-shadow: 0 24px 32px rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px);
    transition:
      opacity 280ms var(--ease-out-expo),
      transform 280ms var(--ease-out-expo),
      visibility 280ms;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    display: block;
    padding: 0.85rem 0.75rem;
    border-bottom: 1px solid rgba(248, 244, 236, 0.08);
    font-size: 1rem;
  }

  .site-nav a[aria-current="page"] {
    color: var(--gold-bright);
    border-left: 4px solid var(--gold-accent);
    padding-left: 0.875rem;
  }

  .site-nav a[aria-current="page"]::after {
    display: none;
  }

  .site-nav .nav-cta {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0.875rem 0 0;
    padding: 0.85rem 1.2rem;
    text-align: center;
    transform: none;
  }

  .site-nav .nav-cta > span {
    transform: none;
  }
}

@media (max-width: 620px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-brand-col {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  :root {
    --header-height: 64px;
  }

  .brand-text {
    font-size: 1.125rem;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
  }
}

/* ============ ACCESSIBILITY ============ */
:focus-visible {
  outline: 3px solid var(--gold-bright);
  outline-offset: 2px;
}

@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;
  }

  .has-js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}