:root {
  --seido-color-bg: #f8fbff;
  --seido-color-surface: #ffffff;
  --seido-color-surface-soft: #f4f8ff;
  --seido-color-ink: #09152d;
  --seido-color-ink-2: #14223d;
  --seido-color-muted: #61708f;
  --seido-color-muted-2: #8795ad;
  --seido-color-line: #d9e4f4;
  --seido-color-line-strong: #c6d7ee;
  --seido-color-blue: #2563eb;
  --seido-color-blue-2: #3b82f6;
  --seido-color-blue-soft: #eaf2ff;
  --seido-color-green: #13a67b;
  --seido-color-green-soft: #def7ee;
  --seido-color-orange: #ff8a1f;
  --seido-color-orange-soft: #fff0df;
  --seido-color-purple: #7c3aed;
  --seido-color-purple-soft: #efe7ff;
  --seido-color-pink: #f43f7f;
  --seido-color-pink-soft: #ffe5ef;
  --seido-color-slate-soft: #eef4fb;
  --seido-shadow-lg: 0 22px 70px rgba(16, 43, 84, .10);
  --seido-shadow-md: 0 14px 36px rgba(16, 43, 84, .08);
  --seido-shadow-blue: 0 16px 32px rgba(37,99,235,.26);
  --seido-radius-xl: 32px;
  --seido-radius-lg: 22px;
  --seido-radius-md: 14px;
  --seido-space-gutter: clamp(24px, 6vw, 112px);
  --seido-space-section: clamp(72px, 8vw, 112px);
  --seido-space-card: 24px;
  --seido-layout-wide: 1460px;
  --seido-font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --seido-font-serif: "Playfair Display", "Recoleta", Georgia, "Times New Roman", serif;

  --bg: var(--seido-color-bg);
  --paper: var(--seido-color-surface);
  --paper-soft: var(--seido-color-surface-soft);
  --ink: var(--seido-color-ink);
  --ink-2: var(--seido-color-ink-2);
  --muted: var(--seido-color-muted);
  --muted-2: var(--seido-color-muted-2);
  --line: var(--seido-color-line);
  --line-strong: var(--seido-color-line-strong);
  --blue: var(--seido-color-blue);
  --blue-2: var(--seido-color-blue-2);
  --blue-soft: var(--seido-color-blue-soft);
  --green: var(--seido-color-green);
  --green-soft: var(--seido-color-green-soft);
  --orange: var(--seido-color-orange);
  --orange-soft: var(--seido-color-orange-soft);
  --purple: var(--seido-color-purple);
  --purple-soft: var(--seido-color-purple-soft);
  --pink: var(--seido-color-pink);
  --pink-soft: var(--seido-color-pink-soft);
  --slate-soft: var(--seido-color-slate-soft);
  --shadow: var(--seido-shadow-lg);
  --shadow-soft: var(--seido-shadow-md);
  --radius-lg: var(--seido-radius-xl);
  --radius-md: var(--seido-radius-lg);
  --radius-sm: var(--seido-radius-md);
  --section-x: var(--seido-space-gutter);
  --wide: var(--seido-layout-wide);
  --sans: var(--seido-font-sans);
  --serif: var(--seido-font-serif);
}

.seido-shell {
  width: min(var(--seido-layout-wide), calc(100% - var(--seido-space-gutter) * 2));
  margin-inline: auto;
}

.seido-section {
  padding-top: var(--seido-space-section);
}

.seido-nav-shell {
  width: 100%;
  min-height: 84px;
  padding: 18px var(--seido-space-gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--seido-color-line);
  background: rgba(255,255,255,.74);
  backdrop-filter: blur(18px);
}

.seido-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
}

.seido-brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  font-weight: 900;
  background:
    radial-gradient(circle at 35% 25%, #fff 0 5%, transparent 6%),
    linear-gradient(135deg, #6d5dfc, #2f63f4 48%, #1b2b6f);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,.35), 0 12px 30px rgba(37,99,235,.25);
}
.seido-brand-logo {
  width: 38px;
  height: 38px;
  display: block;
  flex: 0 0 38px;
  border-radius: 13px;
  object-fit: cover;
  box-shadow: 0 12px 30px rgba(37,99,235,.22);
}

.seido-brand-copy strong {
  display: block;
  font-size: 17px;
  letter-spacing: .04em;
  line-height: 1;
}

.seido-brand-copy small,
.seido-brand-copy span {
  display: block;
  margin-top: 4px;
  color: var(--seido-color-muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .25em;
}

.seido-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  color: #263958;
  font-size: 14px;
  font-weight: 800;
}

.seido-nav-link {
  position: relative;
  padding: 12px 0;
  color: inherit;
  text-decoration: none;
}

.seido-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  border-radius: 999px;
  background: var(--seido-color-blue);
  transform: scaleX(0);
  transform-origin: center;
  transition: .18s ease;
}

.seido-nav-link:is(:hover, .is-active)::after,
.seido-nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.seido-action-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.seido-lang-switcher {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px 0 18px;
  border: 1px solid var(--seido-color-line-strong);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color: var(--seido-color-ink);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background-color .18s ease;
}

.seido-lang-switcher:hover {
  transform: translateY(-1px);
  background: #fff;
}

.seido-lang-switcher:focus-within {
  border-color: rgba(37,99,235,.55);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.seido-lang-switcher__label {
  margin-right: 6px;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.seido-lang-switcher__select {
  min-height: 40px;
  padding: 0 24px 0 4px;
  border: 0;
  outline: 0;
  background-color: transparent;
  color: inherit;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.seido-lang-switcher__select:focus {
  outline: 0;
}

.seido-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--seido-color-line-strong);
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background-color .18s ease, color .18s ease;
  text-decoration: none;
}

.seido-btn:hover { transform: translateY(-1px); }
.seido-btn--lg { min-height: 48px; padding-inline: 24px; }
.seido-btn--primary {
  color: #fff;
  background: linear-gradient(180deg, var(--seido-color-blue-2), var(--seido-color-blue));
  border-color: rgba(37,99,235,.8);
  box-shadow: var(--seido-shadow-blue);
}
.seido-btn--ghost {
  background: rgba(255,255,255,.72);
  color: var(--seido-color-ink);
}
.seido-btn--soft {
  background: #fff;
  color: var(--seido-color-ink);
}
.seido-btn--subtle {
  background: rgba(244,248,255,.82);
  color: var(--seido-color-ink);
}
.seido-btn--danger {
  background: linear-gradient(180deg, #ef5b6b, #d9364e);
  border-color: rgba(217,54,78,.72);
  color: #fff;
}
.seido-btn--danger-outline {
  background: #fff;
  border-color: rgba(217,54,78,.22);
  color: #b4233e;
}

.seido-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 25px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 1000;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.seido-badge--soft {
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--seido-color-line);
  background: rgba(255,255,255,.74);
  color: var(--seido-color-muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: none;
}
.seido-badge--tag { color: var(--seido-color-blue); background: var(--seido-color-blue-soft); }
.seido-badge--live { color: #047857; background: var(--seido-color-green-soft); }
.seido-badge--progress { color: #b45309; background: #ffedd5; }
.seido-badge--system { color: var(--seido-color-ink-2); background: #e7eef9; }
.seido-badge--planned { color: #6d28d9; background: #f3e8ff; }
.seido-badge--strong { color: #fff; background: var(--seido-color-blue); }

.seido-card {
  background: rgba(255,255,255,.88);
  border: 1px solid var(--seido-color-line);
  border-radius: var(--seido-radius-lg);
  box-shadow: var(--seido-shadow-md);
}

.seido-card--dark {
  background: #07162d;
  color: #dbeafe;
  border-color: rgba(255,255,255,.1);
  box-shadow: 0 22px 48px rgba(2, 6, 23, .28);
}

.seido-card--featured {
  background: linear-gradient(145deg, #fff, #edf5ff);
  border-color: rgba(37,99,235,.35);
}

.seido-section-heading {
  margin-bottom: 30px;
}

.seido-section-split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.seido-cta-band {
  padding: 32px clamp(28px, 4vw, 54px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  border-radius: 28px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px) 0 0 / 38px 38px,
    linear-gradient(180deg, #0b2347, #0f3c83);
  box-shadow: 0 28px 70px rgba(15, 60, 131, .25);
}

.seido-app-grid {
  display: grid;
  grid-template-columns: 1.25fr repeat(2, 1fr);
  grid-auto-rows: minmax(250px, auto);
  gap: 20px;
}

.seido-app-module {
  padding: 28px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.seido-app-module--lead {
  grid-row: span 2;
  min-height: 580px;
}

.seido-app-icon {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  font-weight: 950;
  font-size: 13px;
  box-shadow: inset 0 0 0 4px rgba(255,255,255,.28), 0 12px 24px rgba(15,23,42,.12);
}

.seido-app-icon--logo {
  background: #fff;
  color: var(--seido-color-ink);
  border: 1px solid var(--seido-color-line);
  box-shadow: 0 12px 24px rgba(15,23,42,.08);
}

.seido-app-icon--logo img {
  width: 70%;
  height: 70%;
  object-fit: contain;
}

.seido-price-card {
  padding: 30px;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.seido-sidebar-layout {
  display: grid;
  grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
  gap: 24px;
}

.seido-sidebar {
  padding: 24px;
  border: 1px solid var(--seido-color-line);
  border-radius: var(--seido-radius-xl);
  background: rgba(255,255,255,.88);
  box-shadow: var(--seido-shadow-md);
}

.seido-sidebar-nav {
  display: grid;
  gap: 10px;
}

.seido-sidebar-nav a {
  display: block;
  min-height: 42px;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--seido-color-muted);
  font-weight: 800;
  text-decoration: none;
}

.seido-sidebar-nav a.is-active {
  background: var(--seido-color-blue-soft);
  color: var(--seido-color-blue);
}

.seido-dashboard-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.seido-dashboard-card {
  min-height: 230px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.seido-table-card {
  border: 1px solid var(--seido-color-line);
  border-radius: var(--seido-radius-xl);
  background: rgba(255,255,255,.88);
  box-shadow: var(--seido-shadow-md);
  overflow: hidden;
}

.seido-table-wrap {
  overflow-x: auto;
}

.seido-table {
  width: 100%;
  border-collapse: collapse;
}

.seido-table th,
.seido-table td {
  padding: 14px 16px;
  border-top: 1px solid var(--seido-color-line);
  text-align: left;
  vertical-align: top;
}

.seido-table thead th {
  border-top: 0;
  color: var(--seido-color-muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.seido-form-grid {
  display: grid;
  gap: 16px;
}

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

.seido-field {
  display: grid;
  gap: 8px;
}

.seido-field > span,
.seido-field > label {
  color: var(--seido-color-ink);
  font-size: 13px;
  font-weight: 800;
}

.seido-input,
.seido-select,
.seido-textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--seido-color-line);
  border-radius: 14px;
  background: rgba(255,255,255,.92);
  color: var(--seido-color-ink);
  font: inherit;
}

.seido-textarea {
  min-height: 120px;
  padding-top: 12px;
  padding-bottom: 12px;
  resize: vertical;
}

.seido-form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.seido-alert {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid var(--seido-color-line);
  background: rgba(255,255,255,.9);
  color: var(--seido-color-ink);
}

.seido-alert--info { background: #eef5ff; border-color: #d4e3fb; }
.seido-alert--success { background: #eaf8f1; border-color: #cfeedd; }
.seido-alert--warning { background: #fff5e8; border-color: #f6dfbf; }
.seido-alert--danger { background: #fff0f2; border-color: #f7cdd6; }

.seido-empty {
  display: grid;
  gap: 10px;
  place-items: start;
  padding: 24px;
  border: 1px dashed var(--seido-color-line-strong);
  border-radius: var(--seido-radius-xl);
  background: rgba(244,248,255,.72);
  color: var(--seido-color-muted);
}

.seido-footer {
  padding: 60px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: flex-start;
  color: var(--seido-color-muted);
}

@media (max-width: 1180px) {
  .seido-nav-shell,
  .seido-sidebar-layout,
  .seido-app-grid,
  .seido-dashboard-grid,
  .seido-form-grid--two {
    grid-template-columns: 1fr;
  }

  .seido-cta-band,
  .seido-section-split,
  .seido-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 760px) {
  .seido-shell {
    width: min(var(--seido-layout-wide), calc(100% - 40px));
  }

  .seido-nav,
  .seido-action-row,
  .seido-form-actions {
    flex-wrap: wrap;
  }
}