:root {
  --bg: #070b14;
  --bg2: #0d1424;
  --card: #121a2c;
  --card2: #182234;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eef3fb;
  --muted: #8fa3c0;
  --blue: #3b82f6;
  --blue2: #60a5fa;
  --cyan: #22d3ee;
  --green: #34d399;
  --gold: #fbbf24;
  --red: #f87171;
  --radius: 16px;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  --max: 1120px;
  --nav-h: 68px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1000px 500px at 10% -10%, rgba(59, 130, 246, 0.18), transparent 55%),
    radial-gradient(800px 420px at 100% 0%, rgba(34, 211, 238, 0.1), transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
img { max-width: 100%; display: block; }

.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 20, 0.75);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; letter-spacing: -0.02em; font-size: 18px;
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
  font-size: 16px;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 12px; border-radius: 999px; color: var(--muted); font-size: 14px;
}
.nav-links a:hover, .nav-links a.active { color: #fff; background: rgba(255,255,255,0.05); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.cart-btn {
  position: relative;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
.cart-count {
  position: absolute; top: -6px; right: -4px;
  min-width: 18px; height: 18px; border-radius: 999px;
  background: var(--blue); color: #fff;
  font-size: 11px; font-weight: 700;
  display: grid; place-items: center; padding: 0 4px;
}
.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
}

/* Language switch */
.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  gap: 2px;
}
.lang-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  line-height: 1;
}
.lang-btn:hover { color: #fff; }
.lang-btn.active {
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.currency-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  font-size: 12px;
  color: var(--muted);
}
.currency-label {
  font-weight: 600;
  white-space: nowrap;
}
.currency-select {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 2px;
  outline: none;
  cursor: pointer;
  max-width: 96px;
}
.currency-select option {
  background: #121a2c;
  color: #eef3fb;
}
.fx-note {
  font-size: 11px;
  color: var(--muted);
  margin-top: 6px;
}

.category-banner {
  margin: 8px 0 4px;
  padding: 18px 18px 14px;
  border-radius: 18px;
  border: 1px solid rgba(59, 130, 246, 0.35);
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(6, 182, 212, 0.08)),
    var(--card);
}
.category-banner-actions {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.category-banner a.btn {
  text-decoration: none;
}

.addon-required {
  border-color: rgba(251, 191, 36, 0.45) !important;
  background: rgba(251, 191, 36, 0.08) !important;
}

/* Checkout payment methods + QR */
.pay-methods {
  margin-top: 4px;
}
.pay-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.pay-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}
.pay-tab input {
  accent-color: #60a5fa;
}
.pay-tab.active {
  border-color: rgba(96, 165, 250, 0.55);
  background: rgba(96, 165, 250, 0.14);
}
.pay-panels {
  margin-top: 4px;
}
.pay-panel {
  display: none;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.18);
}
.pay-panel.active {
  display: block;
}
.pay-amount {
  margin: 0 0 6px;
  font-weight: 800;
  font-size: 15px;
}
.pay-qr-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  margin-top: 8px;
}
.pay-qr {
  width: min(220px, 100%);
  height: auto;
  border-radius: 12px;
  background: #fff;
  padding: 10px;
  display: block;
}
.pay-qr-placeholder {
  width: min(220px, 100%);
  min-height: 200px;
  border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
}
.pay-qr-ph-title {
  font-weight: 800;
  font-size: 16px;
}

/* Home category strip (top of homepage) */
.home-cats-section {
  padding: 8px 0 4px;
}
.home-cats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.home-cat-card {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.12), rgba(255, 255, 255, 0.03));
  color: inherit;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.home-cat-card:hover {
  border-color: rgba(96, 165, 250, 0.5);
  transform: translateY(-1px);
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.18), rgba(255, 255, 255, 0.05));
}
.home-cat-ico {
  font-size: 22px;
  line-height: 1;
}
.home-cat-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.home-cat-body strong {
  font-size: 15px;
}
.home-cat-body .muted {
  font-size: 12px;
}
.home-cat-arrow {
  opacity: 0.55;
  font-size: 16px;
}
@media (max-width: 640px) {
  .home-cats {
    grid-template-columns: 1fr;
  }
}

/* Billing cycle (month / year) on product page */
.billing-options {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}
.billing-options-label {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}
.billing-opt {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.billing-opt input {
  margin-top: 3px;
  accent-color: #60a5fa;
}
.billing-opt.active {
  border-color: rgba(96, 165, 250, 0.55);
  background: rgba(96, 165, 250, 0.1);
}
.billing-opt-price {
  font-size: 14px;
  font-weight: 700;
  margin-top: 2px;
}
.billing-opt .badge {
  margin-top: 6px;
  display: inline-block;
}
.coverage-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.coverage-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  max-height: 420px;
  overflow: auto;
  columns: 2;
  column-gap: 16px;
  font-size: 12.5px;
  color: var(--muted);
}
.coverage-list li {
  break-inside: avoid;
  padding: 3px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
@media (max-width: 900px) {
  .container[style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  .coverage-list { columns: 1; }
}
@media (max-width: 900px) {
  .currency-label { display: none; }
}

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700; font-size: 14px;
  cursor: pointer;
  transition: transform .15s ease, opacity .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.35);
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost {
  background: transparent; color: var(--muted); border: 1px solid transparent;
}
.btn-ghost:hover { color: #fff; border-color: var(--border); }
.btn-sm { padding: 8px 12px; font-size: 13px; border-radius: 10px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* HERO */
.hero {
  padding: 48px 0 28px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: #6ee7b7; font-size: 12px; font-weight: 600;
}
.hero h1 {
  margin: 14px 0 12px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}
.hero h1 span {
  background: linear-gradient(90deg, var(--blue2), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p { color: var(--muted); font-size: 16px; max-width: 520px; margin: 0 0 22px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.trust-row {
  display: flex; flex-wrap: wrap; gap: 14px;
  color: var(--muted); font-size: 13px;
}
.trust-row strong { color: var(--text); }
.hero-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), transparent), var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.hero-card h3 { margin: 0 0 12px; font-size: 16px; }
.sim-preview {
  border-radius: 16px;
  padding: 18px;
  background:
    linear-gradient(135deg, rgba(37,99,235,0.35), rgba(6,182,212,0.15)),
    #0b1220;
  border: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 14px;
}
.sim-preview .label { font-size: 12px; color: #c7d7f0; opacity: 0.85; }
.sim-preview .title { font-size: 22px; font-weight: 800; margin: 6px 0; }
.sim-preview .meta { display: flex; justify-content: space-between; font-size: 13px; color: #dbe7fb; }
.mini-steps { display: grid; gap: 8px; }
.mini-steps div {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 13px; color: var(--muted);
}
.mini-steps i {
  width: 22px; height: 22px; border-radius: 7px;
  display: grid; place-items: center;
  background: rgba(59,130,246,0.15); color: var(--blue2);
  font-style: normal; font-size: 12px; font-weight: 700; flex: 0 0 auto;
}

/* SECTIONS */
section { padding: 28px 0; }
.section-head {
  display: flex; align-items: end; justify-content: space-between;
  gap: 12px; margin-bottom: 16px; flex-wrap: wrap;
}
.section-head h2 { margin: 0; font-size: 24px; letter-spacing: -0.02em; }
.section-head p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

/* FILTERS */
.filters {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px;
}
.chip {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
}
.chip:hover, .chip.active {
  color: #fff;
  border-color: rgba(59,130,246,0.5);
  background: rgba(59,130,246,0.15);
}
.search {
  flex: 1 1 200px;
  min-width: 180px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 14px;
  outline: none;
}
.search:focus { border-color: rgba(59,130,246,0.6); }

/* PRODUCT GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .15s ease, border-color .15s ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(96, 165, 250, 0.35);
}
.card-top {
  padding: 16px 16px 0;
  display: flex; justify-content: space-between; gap: 8px;
}
.flag {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--card2);
  font-size: 22px;
  border: 1px solid var(--border);
}
.badge {
  align-self: start;
  font-size: 11px; font-weight: 700;
  padding: 4px 8px; border-radius: 999px;
  background: rgba(251, 191, 36, 0.12);
  color: var(--gold);
  border: 1px solid rgba(251, 191, 36, 0.25);
}
.badge.green {
  background: rgba(52, 211, 153, 0.12);
  color: var(--green);
  border-color: rgba(52, 211, 153, 0.25);
}
.card-body { padding: 12px 16px 16px; }
.card-body h3 { margin: 0 0 4px; font-size: 17px; }
.card-body .sub { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.specs {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 12px;
}
.specs span {
  font-size: 12px; color: #c7d6ef;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 8px;
}
.price-row {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.price { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.price small { font-size: 12px; color: var(--muted); font-weight: 500; }

/* FEATURES */
.features {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.feature .ico {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(59,130,246,0.12);
  margin-bottom: 10px;
  font-size: 16px;
}
.feature h3 { margin: 0 0 6px; font-size: 15px; }
.feature p { margin: 0; color: var(--muted); font-size: 13px; }

/* PAGE LAYOUTS */
.page { display: none; padding-bottom: 48px; min-height: calc(100vh - var(--nav-h) - 80px); }
.page.active { display: block; }
.page-hero {
  padding: 28px 0 8px;
}
.page-hero h1 { margin: 0 0 8px; font-size: 30px; letter-spacing: -0.02em; }
.page-hero p { margin: 0; color: var(--muted); }

/* PRODUCT DETAIL */
.pdp {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  margin-top: 18px;
}
.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
}
.panel h2 { margin: 0 0 8px; font-size: 26px; }
.muted { color: var(--muted); }
.list { margin: 12px 0; padding-left: 1.1em; color: var(--muted); font-size: 14px; }
.list li { margin: 6px 0; }
.list li strong { color: var(--text); }
.addon {
  margin: 14px 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  display: flex; gap: 10px; align-items: flex-start;
}
.addon input { margin-top: 4px; }
.qty {
  display: inline-flex; align-items: center; gap: 8px;
  margin: 12px 0;
}
.qty button {
  width: 32px; height: 32px; border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card2); color: var(--text); cursor: pointer;
}

/* CART / CHECKOUT */
.cart-layout, .checkout-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 16px;
  margin-top: 18px;
}
.line {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.line h4 { margin: 0 0 4px; font-size: 15px; }
.line p { margin: 0; color: var(--muted); font-size: 13px; }
.summary .row {
  display: flex; justify-content: space-between;
  margin: 8px 0; font-size: 14px; color: var(--muted);
}
.summary .row.total {
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--text); font-size: 18px; font-weight: 800;
}
.form { display: grid; gap: 10px; }
.form label { font-size: 13px; color: var(--muted); display: grid; gap: 6px; }
.form input, .form select, .form textarea {
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  border-radius: 10px;
  padding: 11px 12px;
  outline: none;
}
.form input:focus, .form select:focus, .form textarea:focus {
  border-color: rgba(59,130,246,0.6);
}

/* SUCCESS / INSTALL */
.success-box {
  text-align: center;
  max-width: 560px;
  margin: 30px auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 22px;
}
.qr {
  width: 180px; height: 180px;
  margin: 16px auto;
  border-radius: 16px;
  background:
    repeating-linear-gradient(0deg, #111 0 8px, #222 8px 16px),
    repeating-linear-gradient(90deg, #111 0 8px, #222 8px 16px);
  border: 8px solid #fff;
  position: relative;
}
.qr::after {
  content: "eSIM QR";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  background: rgba(7,11,20,0.55);
  color: #fff; font-weight: 800; font-size: 14px;
}

/* Success page: WeChat / Telegram contact QRs */
.contact-qr-title {
  margin: 16px 0 6px;
  font-size: 16px;
  font-weight: 800;
}
.contact-qr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  max-width: 420px;
  margin: 0 auto;
}
.contact-qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.contact-qr-img-wrap {
  width: 160px;
  height: 160px;
  border-radius: 14px;
  background: #fff;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-sizing: border-box;
}
.contact-qr-img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: 8px;
}
.contact-qr-ph {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  border: 1px dashed rgba(0, 0, 0, 0.2);
  background: #f3f4f6;
  color: #111;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  text-align: center;
  box-sizing: border-box;
}
.contact-qr-label {
  font-weight: 800;
  font-size: 14px;
  margin-top: 2px;
}
@media (max-width: 520px) {
  .contact-qr-grid {
    grid-template-columns: 1fr;
  }
}
.steps-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px;
}
.step-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.step-card h3 { margin: 0 0 8px; font-size: 15px; }
.step-card ol { margin: 0; padding-left: 1.15em; color: var(--muted); font-size: 13px; }
.step-card li { margin: 5px 0; }

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
  color: var(--muted); font-size: 13px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 18px;
}
.footer h4 { margin: 0 0 8px; color: var(--text); font-size: 14px; }
.footer a { display: block; color: var(--muted); margin: 4px 0; }
.footer a:hover { color: #fff; }
.demo-banner {
  text-align: center;
  font-size: 12px;
  color: #fde68a;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.25);
  border-radius: 10px;
  padding: 8px 12px;
  margin: 12px 0 0;
}

.empty {
  text-align: center;
  padding: 40px 16px;
  color: var(--muted);
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: 16px;
}

/* TOAST */
.toast {
  position: fixed; bottom: 20px; right: 20px; z-index: 100;
  background: #0f172a;
  border: 1px solid rgba(59,130,246,0.4);
  color: #fff;
  padding: 12px 16px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  opacity: 0; transform: translateY(8px);
  pointer-events: none;
  transition: all .2s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .hero-grid, .pdp, .cart-layout, .checkout-layout, .features, .grid, .steps-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: rgba(7,11,20,0.96);
    border-bottom: 1px solid var(--border);
    padding: 10px;
  }
  .menu-toggle { display: inline-flex; }
  .line { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
}