/* ===== FEATURE SECTIONS ===== */
.feature-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: center;
}
.feature-grid.reverse { direction:rtl; }
.feature-grid.reverse > * { direction:ltr; }

.feature-text h2   { font-size: clamp(2rem, 3.5vw, 3rem); margin-bottom: 1.25rem; }
.feature-text h2 em { color: var(--primary); }
.feature-text p    { font-size: 1rem; color: var(--text2); line-height: 1.75; margin-bottom: 1.25rem; }

.feature-list { list-style:none; display:flex; flex-direction:column; gap:.6rem; margin-top: .5rem; }
.feature-list li {
  display:flex; align-items:flex-start; gap:.75rem;
  font-size:.9375rem; color:var(--text2);
  padding:.7rem .9rem;
  background: var(--surface); border:1px solid var(--border); border-radius:8px;
  transition: border-color .2s, box-shadow .2s;
}
.feature-list li:hover { border-color: var(--g300); box-shadow: var(--sh-sm); }
.feature-list li::before {
  content:''; width:5px; height:5px;
  background:var(--primary); border-radius:50%;
  margin-top:.45rem; flex-shrink:0;
}

.feature-visual { display:flex; align-items:center; justify-content:center; }
.feature-visual svg { width:100%; max-width:420px; }

/* ===== COMPARISON TABLE ===== */
.comparison {
  width:100%; display:grid; grid-template-columns:1fr 1fr;
  gap:1px; background:var(--border);
  border:1px solid var(--border); border-radius:10px; overflow:hidden;
}
.comparison-col { background:var(--surface); padding:1.5rem; }
.comparison-col:last-child { background:var(--surface2); }
.comparison-col-header {
  font-family:var(--font-m); font-size:.72rem; letter-spacing:.13em;
  text-transform:uppercase; margin-bottom:1.25rem; padding-bottom:.75rem;
  border-bottom:1px solid var(--border);
}
.comparison-col:first-child .comparison-col-header { color:var(--muted); }
.comparison-col:last-child  .comparison-col-header { color:var(--primary); }
.comparison-items { display:flex; flex-direction:column; gap:.55rem; }
.comparison-item  { display:flex; align-items:center; gap:.6rem; font-size:.875rem; color:var(--text2); }
.comparison-item .check { width:16px; height:16px; flex-shrink:0; }
.comparison-col:first-child .comparison-item { text-decoration:line-through; opacity:.45; }
.comparison-col:first-child .comparison-item .check { stroke:#c0605e; }
.comparison-col:last-child  .comparison-item { color:var(--text); font-weight:500; }
.comparison-col:last-child  .comparison-item .check { stroke:var(--primary); }

/* ===== MAKER / CHECKER — dark section ===== */
.mkchk-section {
  background: var(--dark);
  position: relative; overflow: hidden;
}
.mkchk-section::before {
  content:''; position:absolute; inset:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(0,167,78,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,167,78,.04) 1px, transparent 1px);
  background-size: 44px 44px;
}
.mkchk-inner { position:relative; z-index:1; }

.mkchk-header { text-align:center; max-width:640px; margin:0 auto 4rem; }
.mkchk-header h2 { font-size: clamp(2rem, 4vw, 3rem); color:#fff; margin-bottom:1rem; }
.mkchk-header h2 em { color: var(--g400); }
.mkchk-header p { font-size:1.05rem; color:var(--dark-muted); line-height:1.7; }

.mkchk-cards { display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; }

.mkchk-card {
  background: var(--dark2); border:1px solid var(--dark3);
  border-radius:14px; padding:2rem; position:relative; overflow:hidden;
  transition: border-color .3s, transform .3s;
}
.mkchk-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg, var(--dark3), var(--primary), var(--dark3));
  opacity:0; transition:opacity .3s;
}
.mkchk-card:hover { border-color:rgba(0,167,78,.35); transform:translateY(-4px); }
.mkchk-card:hover::before { opacity:1; }

.mkchk-card-num {
  position:absolute; top:1.5rem; right:1.5rem;
  font-family:var(--font-m); font-size:.62rem; color:var(--dark3); letter-spacing:.1em;
}
.mkchk-function { font-family:var(--font-d); font-size:1.75rem; color:#fff; margin-bottom:1.5rem; }
.mkchk-flow     { display:flex; align-items:center; gap:.5rem; margin-bottom:1.5rem; }

.mkchk-badge { font-family:var(--font-m); font-size:.7rem; letter-spacing:.1em; text-transform:uppercase; padding:.28rem .65rem; border-radius:4px; font-weight:500; }
.mkchk-badge.maker   { background:rgba(201,169,122,.1); color:#c9a97a; border:1px solid rgba(201,169,122,.25); }
.mkchk-badge.checker { background:rgba(0,167,78,.12); color:#00d460; border:1px solid rgba(0,167,78,.2); }

.mkchk-arrow { width:20px; height:1px; background:var(--dark3); position:relative; flex-shrink:0; }
.mkchk-arrow::after {
  content:''; position:absolute; right:-1px; top:-3px;
  width:6px; height:6px;
  border-top:1px solid var(--dark3); border-right:1px solid var(--dark3);
  transform:rotate(45deg);
}
.mkchk-desc { font-size:.88rem; color:var(--dark-muted); line-height:1.65; }

/* ===== SECTION INTRO (centered header block) ===== */
.section-intro { text-align:center; max-width:680px; margin:0 auto 4rem; }
.section-intro h2 { font-size: clamp(2rem, 3.5vw, 3rem); margin-bottom:1rem; }
.section-intro h2 em { color: var(--primary); }
.section-intro-sub { font-size:1.05rem; color:var(--text2); line-height:1.75; }
.h2-nowrap-first span { white-space:nowrap; }

/* ===== ADVANTAGE CARDS (Section 1) ===== */
.adv-cards {
  display:grid; grid-template-columns:repeat(3, 1fr);
  gap:1.25rem; margin-bottom:3rem;
}
.adv-card {
  background: var(--surface); border:1px solid var(--border); border-radius:12px;
  padding:1.75rem 1.5rem;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.adv-card:hover { border-color:var(--g300); box-shadow:var(--sh-md); transform:translateY(-3px); }
.adv-card-icon {
  width:40px; height:40px; border-radius:10px;
  background:var(--primary-l); color:var(--primary);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:1rem;
}
.adv-card h3 { font-family:var(--font-b); font-size:1rem; font-weight:600; margin-bottom:.5rem; color:var(--text); }
.adv-card p  { font-size:.875rem; color:var(--text2); line-height:1.65; }

/* ===== COMPARISON WRAP (centered) ===== */
.comparison-wrap { max-width:720px; margin:0 auto; }

/* ===== NUMBERED FEATURES (Section 2) ===== */
.numbered-features {
  display:flex; flex-direction:column; gap:0;
  border:1px solid var(--border); border-radius:12px; overflow:hidden;
  margin-bottom:2.5rem;
}
.numbered-feat {
  display:flex; gap:2rem; padding:2rem 2.5rem;
  border-bottom:1px solid var(--border);
  transition: background .2s;
}
.numbered-feat:last-child { border-bottom:none; }
.numbered-feat:hover { background:var(--g50); }
.numbered-feat-num {
  font-family:var(--font-m); font-size:2rem; font-weight:400;
  color:var(--g200); line-height:1; flex-shrink:0; width:3rem; padding-top:.2rem;
}
.numbered-feat-body h3 { font-family:var(--font-b); font-size:1.05rem; font-weight:600; margin-bottom:.6rem; color:var(--text); }
.numbered-feat-body p  { font-size:.9375rem; color:var(--text2); line-height:1.7; }

/* ===== COMPLIANCE CHECKLIST ===== */
.compliance-checklist {
  background:var(--g50); border:1px solid var(--g200); border-radius:12px;
  padding:2rem 2.5rem;
}
.compliance-checklist-label {
  font-family:var(--font-b); font-size:.95rem; font-weight:600; letter-spacing:.04em; text-transform:uppercase;
  color:var(--primary); display:flex; align-items:center; gap:.5rem; margin-bottom:1.25rem;
}
.compliance-checklist-items {
  display:grid; grid-template-columns:repeat(2, 1fr); gap:.6rem .6rem;
}
.compliance-item {
  display:flex; align-items:center; gap:.6rem;
  font-size:.875rem; color:var(--text2); font-weight:500;
}
.compliance-item svg { width:16px; height:16px; flex-shrink:0; stroke:var(--primary); }

/* ===== INFRA CARDS — 4-col on dark ===== */
.infra-cards { grid-template-columns:repeat(4, 1fr); }
.infra-chips {
  display:flex; flex-wrap:wrap; justify-content:center; gap:.75rem; margin-top:3rem;
}
.infra-chip {
  font-family:var(--font-m); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase;
  padding:.4rem 1rem; border-radius:999px;
  background:rgba(0,167,78,.08); color:var(--g400); border:1px solid rgba(0,167,78,.15);
}

/* ===== PLATFORM SUB-LABEL ===== */
.plat-sub-label {
  font-family:var(--font-b); font-size:.85rem; font-weight:600;
  letter-spacing:.08em; text-transform:uppercase; color:var(--muted);
  margin-bottom:1.25rem;
}

/* ===== TOKEN ARCHITECTURE TOGGLE ===== */
.token-tabs {
  display:flex; gap:0; flex-wrap:nowrap;
  border-bottom:2px solid var(--border);
  margin-bottom:1.5rem; padding:0;
  background:none;
}
.token-tab {
  font-family:var(--font-b); font-size:.9rem; font-weight:500;
  padding:.65rem 0; margin-right:2.5rem;
  border:none; background:none; cursor:pointer;
  color:var(--muted); position:relative;
  transition:color .2s ease;
}
.token-tab::after {
  content:''; position:absolute; bottom:-2px; left:0; right:0;
  height:2px; background:var(--primary); border-radius:2px;
  transform:scaleX(0); transform-origin:center;
  opacity:0;
  transition:transform .35s cubic-bezier(0.4, 0, 0.2, 1), opacity .35s cubic-bezier(0.4, 0, 0.2, 1);
}
.token-tab:hover { color:var(--text2); }
.token-tab.active { color:var(--text); }
.token-tab.active::after { transform:scaleX(1); opacity:1; }
.token-panel {
  display:none;
  background:var(--surface); border:1px solid var(--border);
  border-radius:12px; padding:1.75rem 2rem;
}
.token-panel.active {
  display:block;
  animation:tokenFadeIn .2s ease;
}
@keyframes tokenFadeIn {
  from { opacity:0; transform:translateY(4px); }
  to   { opacity:1; transform:translateY(0); }
}
.token-panel p { font-size:.925rem; color:var(--text2); line-height:1.8; margin:0; }

/* ===== PLATFORM ACCORDION (Section 4) ===== */
.platform-accordion {
  border:1px solid var(--border); border-radius:16px; overflow:hidden;
}
.plat-acc-item {
  border-bottom:1px solid var(--border);
  transition:background .2s ease;
}
.plat-acc-item:last-child { border-bottom:none; }
.plat-acc-item.open { background:var(--surface); }
.plat-acc-trigger {
  width:100%; background:none; border:none; cursor:pointer; text-align:left;
  padding:1.4rem 1.75rem; display:grid;
  grid-template-columns:2.5rem 1fr auto;
  align-items:center; gap:1rem;
  transition:background .2s ease;
}
.plat-acc-trigger:hover { background:var(--surface); }
.plat-acc-item.open .plat-acc-trigger { background:transparent; }
.plat-acc-num {
  font-family:var(--font-m); font-size:.65rem; letter-spacing:.12em;
  color:var(--muted); transition:color .2s ease;
}
.plat-acc-item.open .plat-acc-num { color:var(--primary); }
.plat-acc-title-group { display:flex; flex-direction:column; gap:.2rem; }
.plat-acc-title {
  font-family:var(--font-b); font-size:1rem; font-weight:600; color:var(--text);
  transition:color .2s ease;
}
.plat-acc-tag {
  font-size:.8rem; color:var(--muted); font-style:italic; line-height:1.4;
  transition:color .2s ease;
}
.plat-acc-item.open .plat-acc-tag { color:var(--primary); }
.plat-acc-chevron {
  flex-shrink:0; stroke:var(--muted);
  transition:transform .3s ease, stroke .2s ease;
}
.plat-acc-item.open .plat-acc-chevron { transform:rotate(180deg); stroke:var(--primary); }
.plat-acc-body {
  max-height:0; overflow:hidden;
  transition:max-height .35s cubic-bezier(.4,0,.2,1);
}
.plat-acc-item.open .plat-acc-body { max-height:600px; }
.plat-acc-body-inner {
  padding:.25rem 1.75rem 1.4rem calc(2.5rem + 1rem + 1.75rem);
}
.plat-acc-body-inner p { font-size:.875rem; color:var(--text2); line-height:1.75; margin:0; }

/* ===== NETWORK BRIDGE (Section 5) ===== */
.network-inner {
  display:grid; grid-template-columns:1fr 1fr; gap:5rem; align-items:center;
}
.network-text h2 { font-size:clamp(2rem, 3.5vw, 3rem); margin-bottom:1.25rem; }
.network-text h2 em { color:var(--primary); }
.network-text p  { font-size:1rem; color:var(--text2); line-height:1.75; margin-bottom:1.1rem; }
.network-flow {
  display:flex; flex-direction:column; align-items:center; gap:0;
}
.network-node {
  background:var(--surface); border:1px solid var(--border); border-radius:12px;
  padding:1.25rem 1.75rem; width:100%; text-align:center;
  transition: border-color .2s, box-shadow .2s;
}
.network-node:hover { border-color:var(--g300); box-shadow:var(--sh-sm); }
.network-node-active { border-color:var(--primary); background:var(--g50); box-shadow:var(--sh-g); }
.network-node-label { font-family:var(--font-d); font-size:1.3rem; color:var(--text); }
.network-node-active .network-node-label { color:var(--primary); }
.network-node-sub { font-family:var(--font-m); font-size:.65rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); margin-top:.3rem; }
.network-connector {
  display:flex; flex-direction:column; align-items:center; gap:.25rem;
  padding:.5rem 0; color:var(--g300);
}
.network-connector-line { width:1px; height:24px; background:var(--border); }

/* ===== CONTACT MODAL ===== */
.modal-backdrop {
  position:fixed; inset:0; z-index:500;
  background:rgba(9,26,13,.55); backdrop-filter:blur(6px);
  display:flex; align-items:center; justify-content:center; padding:1.5rem;
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .25s ease, visibility 0s linear .25s;
}
.modal-backdrop.open {
  opacity:1; visibility:visible; pointer-events:auto;
  transition:opacity .25s ease, visibility 0s linear 0s;
}
.modal-dialog {
  background:var(--bg); border:1px solid var(--border); border-radius:16px;
  padding:2.5rem; width:100%; max-width:540px;
  box-shadow:0 24px 80px rgba(0,0,0,.18);
  transform:translateY(12px); transition:transform .25s ease;
}
.modal-backdrop.open .modal-dialog { transform:translateY(0); }
.modal-header {
  display:flex; align-items:flex-start; justify-content:space-between; gap:1rem;
  margin-bottom:.5rem;
}
.modal-header h3 { font-family:var(--font-d); font-size:1.5rem; color:var(--text); line-height:1.2; }
.modal-close {
  width:32px; height:32px; flex-shrink:0;
  background:none; border:1px solid var(--border); border-radius:8px;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  color:var(--muted); transition:border-color .2s, color .2s;
}
.modal-close:hover { border-color:var(--text2); color:var(--text); }
.modal-sub { font-size:.9rem; color:var(--text2); margin-bottom:1.75rem; }

.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-group { display:flex; flex-direction:column; gap:.4rem; margin-bottom:1rem; }
.form-group label { font-family:var(--font-b); font-size:.75rem; font-weight:600; letter-spacing:.04em; text-transform:uppercase; color:var(--text2); }
.form-required { color:var(--primary); }
.form-optional { color:var(--muted); font-size:.65rem; }
.form-group input,
.form-group textarea {
  width:100%; padding:.7rem 1rem;
  background:var(--surface); border:1px solid var(--border); border-radius:8px;
  font-family:var(--font-b); font-size:.9375rem; color:var(--text);
  transition:border-color .2s, box-shadow .2s;
  resize:vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color:var(--muted); }
.form-group input:focus,
.form-group textarea:focus {
  outline:none; border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,167,78,.12);
}
.field-error {
  font-family:var(--font-b); font-size:.75rem; color:#c0605e;
  margin-top:.2rem; display:block;
}
.form-group input[aria-invalid="true"] { border-color:#c0605e; }
.form-group input[aria-invalid="true"]:focus { box-shadow:0 0 0 3px rgba(192,96,94,.12); }
.modal-error {
  font-family:var(--font-b); font-size:.78rem; color:#c0605e;
  margin-bottom:.75rem; min-height:1rem;
}
.modal-submit { width:100%; justify-content:center; margin-top:.25rem; }

.modal-success {
  display:none; flex-direction:column; align-items:center;
  text-align:center; padding:2rem 0 .5rem; gap:.75rem;
}
.modal-success:not([hidden]) { display:flex; }
.modal-success h4 { font-family:var(--font-b); font-size:1.2rem; font-weight:600; color:var(--text); }
.modal-success p { font-size:.9375rem; color:var(--text2); }

@media (max-width:600px) {
  .form-row { grid-template-columns:1fr; }
  .modal-dialog { padding:1.75rem 1.25rem; }
}

/* ===== DARK SECTION — section-intro overrides ===== */
.mkchk-section .section-intro { position:relative; z-index:1; }
.mkchk-section .section-label { color:var(--primary); }
.mkchk-section h2 { color:#fff; }
.mkchk-section h2 em { color:var(--g400); }
.mkchk-section .section-intro-sub { color:var(--dark-muted); }

/* ===== ROLE CARDS (Section 3 — dark) ===== */
.role-cards {
  display:grid; grid-template-columns:repeat(2,1fr); gap:1.5rem;
  position:relative; z-index:1;
}
.role-card {
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.1); border-radius:16px;
  padding:2rem;
  box-shadow:0 8px 32px rgba(0,0,0,.24), inset 0 1px 0 rgba(255,255,255,.06);
  position:relative; overflow:hidden;
  transition: box-shadow .4s ease, transform .4s ease;
}
.role-card::before {
  content:'';
  position:absolute;
  top:50%; left:50%;
  width:250%; height:250%;
  transform:translate(-50%,-50%) rotate(0deg);
  background: conic-gradient(
    transparent 0deg,
    transparent 155deg,
    rgba(0,167,78,.9) 170deg,
    rgba(0,212,96,.8) 180deg,
    rgba(0,167,78,.9) 190deg,
    transparent 205deg,
    transparent 360deg
  );
  opacity:0;
  transition: opacity .3s ease;
  z-index:0;
  pointer-events:none;
}
.role-card::after {
  content:'';
  position:absolute; inset:1px; border-radius:15px;
  background:var(--dark); z-index:1; pointer-events:none;
}
.role-card > * { position:relative; z-index:2; }
.role-card:hover { transform:translateY(-4px); box-shadow:0 16px 48px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.1); }
.role-card:hover::before { opacity:1; animation: borderTrace 2s linear infinite; }
@keyframes borderTrace {
  to { transform: translate(-50%,-50%) rotate(360deg); }
}
.role-card-header {
  display:flex; align-items:center; gap:.875rem; margin-bottom:1.5rem;
  padding-bottom:1.25rem; border-bottom:1px solid rgba(255,255,255,.1);
}
.role-card-icon {
  width:40px; height:40px; border-radius:10px;
  background:rgba(0,167,78,.15);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
  color:var(--primary);
}
.role-card-header h3 {
  font-family:var(--font-b); font-size:1rem; font-weight:600; color:#fff; margin:0;
}
.role-list {
  list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.85rem;
}
.role-list li {
  font-size:.875rem; color:var(--dark-muted); line-height:1.6;
  display:flex; align-items:flex-start; gap:.6rem;
}
.role-list li svg {
  flex-shrink:0; color:var(--primary); margin-top:.15em;
}