:root, [data-theme="light"] {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --color-bg: #f7f6f2;
  --color-surface: #f9f8f5;
  --color-surface-2: #fbfbf9;
  --color-surface-offset: #f0ede8;
  --color-border: rgba(40, 37, 29, 0.12);
  --color-border-strong: rgba(40, 37, 29, 0.18);
  --color-divider: #ddd9d2;
  --color-text: #28251d;
  --color-text-muted: #77736c;
  --color-text-faint: #aca8a1;
  --color-primary: #01696f;
  --color-primary-hover: #0c4e54;
  --color-primary-soft: rgba(1, 105, 111, 0.08);
  --color-danger: #b42318;
  --color-overlay: rgba(23, 22, 20, 0.42);
  --color-inverse: #f9f8f4;
  --color-cat-fill: #28251d;
  --color-cat-eyes: #f7f6f2;
  --color-cat-outline: transparent;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(34, 29, 20, 0.05);
  --shadow-md: 0 10px 30px rgba(34, 29, 20, 0.08);
  --shadow-lg: 0 20px 60px rgba(34, 29, 20, 0.12);
  --shadow-premium: 0 18px 50px rgba(34, 29, 20, 0.10);

  --font-body: "Segoe UI", Arial, Helvetica, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --content: 1120px;
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --color-bg: #171614;
  --color-surface: #1c1b19;
  --color-surface-2: #21201e;
  --color-surface-offset: #262422;
  --color-border: rgba(235, 232, 226, 0.10);
  --color-border-strong: rgba(235, 232, 226, 0.18);
  --color-divider: #302f2c;
  --color-text: #d2cfca;
  --color-text-muted: #948f88;
  --color-text-faint: #68645f;
  --color-primary: #4f98a3;
  --color-primary-hover: #74b6c0;
  --color-primary-soft: rgba(79, 152, 163, 0.14);
  --color-danger: #ed9a91;
  --color-overlay: rgba(0, 0, 0, 0.56);
  --color-inverse: #171614;
  --color-cat-fill: #000000;
  --color-cat-eyes: #ffffff;
  --color-cat-outline: rgba(255, 255, 255, 0.92);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.18);
  --shadow-md: 0 10px 30px rgba(0,0,0,0.26);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.34);
  --shadow-premium: 0 24px 70px rgba(0,0,0,0.34);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable both-edges;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(1,105,111,0.08), transparent 28%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface-offset) 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

a, button {
  transition:
    color var(--transition),
    background var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition),
    opacity var(--transition);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

button {
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  background: var(--color-primary);
  color: white;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  z-index: 1000;
}

.container {
  width: min(var(--content), calc(100% - 2rem));
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  padding-top: 12px;
  backdrop-filter: blur(16px);
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--color-bg) 86%, transparent),
      color-mix(in srgb, var(--color-bg) 72%, transparent)
    );
  border-bottom: 1px solid transparent;
}

.header-shell {
  min-height: 74px;
  display: grid;
  grid-template-columns: minmax(170px, 220px) minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--color-border) 88%, transparent);
  border-radius: 22px;
  background: color-mix(in srgb, var(--color-surface) 88%, white 12%);
  box-shadow: var(--shadow-premium);
}

.brand,
.nav-links,
.nav-actions,
.profile-chip,
.theme-toggle,
.menu-toggle {
  position: relative;
  z-index: 2;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  max-width: 220px;
  overflow: hidden;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  padding: 4px;
  overflow: hidden;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--color-surface) 68%, white 32%),
      color-mix(in srgb, var(--color-surface-2) 88%, white 12%)
    );
  color: var(--color-primary);
  border: 1px solid color-mix(in srgb, var(--color-border-strong) 88%, transparent);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.45),
    var(--shadow-sm);
  flex: 0 0 auto;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

[data-theme="dark"] .brand-mark img {
  filter:
    drop-shadow(1px 0 0 var(--color-cat-outline))
    drop-shadow(-1px 0 0 var(--color-cat-outline))
    drop-shadow(0 1px 0 var(--color-cat-outline))
    drop-shadow(0 -1px 0 var(--color-cat-outline));
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  line-height: 1.05;
}

.brand-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.12rem + 0.25vw, 1.6rem);
  letter-spacing: -0.03em;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-subtitle {
  margin-top: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-links {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 5px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-surface) 76%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 70%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
  overflow: hidden;
}

.nav-links a,
.nav-link-button,
.mobile-menu-link,
.mobile-menu-button {
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--color-text-muted);
  font-size: 0.91rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  background: transparent;
  border: none;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 1 auto;
  min-width: 0;
}

.nav-links a:hover,
.nav-link-button:hover,
.mobile-menu-link:hover,
.mobile-menu-button:hover {
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-surface-2) 84%, white 16%);
}

.nav-links a.active,
.nav-link-button.active,
.mobile-menu-link.active,
.mobile-menu-button.active {
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-surface-2) 80%, white 20%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.4),
    0 0 0 1px color-mix(in srgb, var(--color-border) 88%, transparent);
}

.nav-links form,
.nav-actions form,
.mobile-menu-auth form {
  margin: 0;
}

.nav-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex: 0 0 auto;
}

.nav-auth {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.profile-chip {
  min-width: 150px;
  max-width: 210px;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: color-mix(in srgb, var(--color-surface) 92%, white 8%);
  border: 1px solid color-mix(in srgb, var(--color-border-strong) 82%, transparent);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}

.profile-chip:not(.is-guest) {
  width: clamp(190px, 18vw, 260px);
  min-width: 190px;
  max-width: 260px;
}

.profile-chip:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.profile-chip.active {
  background: color-mix(in srgb, var(--color-surface-2) 84%, white 16%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.35),
    0 0 0 1px color-mix(in srgb, var(--color-border) 88%, transparent);
}

.profile-chip.is-guest {
  cursor: pointer;
}

.profile-chip__text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.profile-chip__name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-chip:not(.is-guest) .profile-chip__name {
  font-size: 1rem;
}

.profile-chip__status {
  margin-top: 4px;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.theme-toggle,
.menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border-strong) 88%, transparent);
  background: color-mix(in srgb, var(--color-surface) 92%, white 8%);
  display: inline-grid;
  place-items: center;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.38),
    var(--shadow-sm);
  flex: 0 0 auto;
}

.theme-toggle:hover,
.menu-toggle:hover {
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.48),
    var(--shadow-md);
}

.menu-toggle {
  display: none;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 80;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), visibility 0s linear var(--transition);
}

.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transition: opacity var(--transition), visibility 0s;
}

.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu-panel {
  position: absolute;
  top: 12px;
  right: 12px;
  bottom: 12px;
  width: min(92vw, 380px);
  padding: var(--space-5);
  background: color-mix(in srgb, var(--color-surface) 92%, white 8%);
  border: 1px solid color-mix(in srgb, var(--color-border-strong) 84%, transparent);
  border-radius: 28px;
  box-shadow: var(--shadow-premium);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  transform: translateX(108%);
  transition: transform var(--transition);
  overflow: auto;
  pointer-events: auto;
}

.mobile-menu.is-open .mobile-menu-backdrop {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu.is-open .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 72%, transparent);
}

.mobile-menu-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.mobile-menu-close {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border-strong) 82%, transparent);
  background: color-mix(in srgb, var(--color-surface) 90%, white 10%);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-sm);
}

.mobile-menu-close:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.mobile-menu-section {
  display: grid;
  gap: var(--space-3);
}

.mobile-menu-label {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  padding-inline: var(--space-2);
  font-weight: 700;
}

.mobile-menu-list {
  display: grid;
  gap: 8px;
}

.mobile-menu-link,
.mobile-menu-button {
  width: 100%;
  justify-content: flex-start;
  min-height: 48px;
  padding: 0 16px;
  border-radius: 16px;
  background: transparent;
}

.mobile-menu-auth {
  margin-top: auto;
  display: grid;
  gap: 8px;
  padding-top: var(--space-4);
  border-top: 1px solid color-mix(in srgb, var(--color-border) 72%, transparent);
}

main {
  padding-block: clamp(var(--space-8), 5vw, var(--space-16));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 0.8rem;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border: 1px solid color-mix(in srgb, var(--color-primary) 14%, transparent);
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-8);
  align-items: stretch;
  margin-bottom: var(--space-8);
}

.hero-copy,
.hero-panel,
.panel,
.feature-card,
.stat-card {
  background: color-mix(in srgb, var(--color-surface) 92%, white 8%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.hero-copy {
  padding: clamp(var(--space-8), 5vw, var(--space-16));
}

.hero-copy h1 {
  margin: var(--space-5) 0 var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: 0.98;
  letter-spacing: -0.03em;
  max-width: 10ch;
}

/* Единая типографика заголовков hero-панелей: эталон BIM-инструментов. */
.hero-copy h1,
.primary-hero h1,
.calculator-catalog-hero h1,
.calc-detail-hero h1,
.account-hero h1,
.projects-hero h1,
.project-detail-hero h1,
.borehole-account-hero h1,
.articles-hero-panel h1,
.page-hero h1 {
  font-family: var(--font-display);
  font-size: 2em;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.025em;
}

.hero-copy p {
  margin: 0 0 var(--space-6);
  color: var(--color-text-muted);
  max-width: 58ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn {
  min-height: 46px;
  padding: 0.9rem 1.15rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: var(--text-sm);
  font-weight: 700;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.portal-pill {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  color: var(--color-text);
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

.portal-pill:hover,
.portal-pill:focus-visible {
  border-color: var(--color-primary);
  background: var(--color-surface-offset);
  color: var(--color-primary);
}

.portal-pill.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
}

.portal-pill.is-active:hover,
.portal-pill.is-active:focus-visible {
  background: var(--color-primary);
  color: white;
}

.disclosure-toggle {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface-2);
  color: var(--color-primary);
}

.disclosure-toggle::before {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform var(--transition);
}

details[open] > summary .disclosure-toggle::before {
  transform: translateY(2px) rotate(225deg);
}

summary:focus-visible .disclosure-toggle {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 18%, transparent);
}

.hero-panel {
  padding: var(--space-6);
  display: grid;
  align-content: space-between;
  min-height: 100%;
  position: relative;
  overflow: hidden;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: auto -10% -30% 30%;
  height: 220px;
  background: radial-gradient(circle, rgba(1,105,111,0.18), transparent 65%);
  pointer-events: none;
}

.mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  position: relative;
  z-index: 1;
}

.mini-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.mini-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.mini-value {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.05;
}

.section {
  margin-top: var(--space-8);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.section-head h2 {
  margin: 0;
  font-size: var(--text-xl);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 52ch;
}

.features {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-4);
}

.feature-card {
  padding: var(--space-6);
}

.feature-card.large {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
}

.feature-kicker {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.feature-card h3 {
  margin: 0 0 var(--space-3);
  font-size: var(--text-lg);
  line-height: 1.15;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.stat-card {
  padding: var(--space-5);
}

.stat-card strong {
  display: block;
  font-size: var(--text-xl);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-card span {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.showcase {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-4);
}

.panel {
  padding: clamp(var(--space-6), 4vw, var(--space-10));
}

.panel-muted {
  background: linear-gradient(180deg, var(--color-surface), var(--color-surface-2));
}

.error-panel {
  max-width: 720px;
  margin: 64px auto;
  padding: 48px;
  text-align: center;
}

.error-panel h1 {
  margin: 18px 0 12px;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
}

.error-panel p {
  color: var(--color-text-muted);
}

.check-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.check-item {
  display: flex;
  gap: var(--space-3);
  align-items: start;
  color: var(--color-text-muted);
}

.check {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  margin-top: 2px;
  font-size: 13px;
  font-weight: 700;
}

.footer {
  padding: var(--space-8) 0 var(--space-10);
  color: var(--color-text-muted);
}

.footer-line {
  height: 1px;
  background: var(--color-divider);
  margin-bottom: var(--space-5);
}
.flash-stack {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  margin-bottom: 8px;
}

.flash {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.flash-success {
  background: color-mix(in srgb, var(--color-primary-soft) 55%, var(--color-surface));
  border-color: color-mix(in srgb, var(--color-primary) 22%, var(--color-border));
}

.flash-error {
  background: color-mix(in srgb, #b42318 10%, var(--color-surface));
  border-color: color-mix(in srgb, #b42318 28%, var(--color-border));
  color: var(--color-text);
}

.flash-warning {
  background: color-mix(in srgb, #b7791f 11%, var(--color-surface));
  border-color: color-mix(in srgb, #b7791f 34%, var(--color-border));
  color: var(--color-text);
}

/* Shared editable engineering tables: projects and calculation modules. */
.portal-data-table-wrap {
  position: relative;
  width: 100%;
  min-width: 0;
  overflow: auto;
}

.portal-data-table-wrap:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--color-primary) 65%, transparent);
  outline-offset: 2px;
}

.portal-data-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--color-text);
  font-size: .8rem;
}

.portal-data-table th,
.portal-data-table td {
  padding: 9px 7px;
  border-bottom: 1px solid var(--color-divider);
  text-align: left;
  vertical-align: middle;
}

.portal-data-table th {
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.portal-data-table--compact th,
.portal-data-table--compact td {
  padding: 6px 7px;
}

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

.portal-data-table tbody tr:hover {
  background: var(--color-primary-soft);
}

.portal-data-table tbody tr.is-selected {
  background: color-mix(in srgb, var(--color-primary) 15%, var(--color-surface));
  box-shadow: inset 3px 0 0 var(--color-primary);
}

.portal-data-table input:not([type="checkbox"]):not([type="color"]),
.portal-data-table select {
  width: 100%;
  min-width: 54px;
  min-height: 32px;
  padding: 4px 5px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--color-text);
  font: inherit;
}

.portal-data-table input:hover,
.portal-data-table input:focus,
.portal-data-table select:hover,
.portal-data-table select:focus {
  border-color: var(--color-primary);
  background: var(--color-surface);
  outline: none;
}

.portal-data-table input:disabled,
.portal-data-table select:disabled {
  border-color: transparent;
  opacity: .82;
}

.portal-data-table-delete {
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #9a3f35;
  font: inherit;
  font-size: 1.15rem;
  cursor: pointer;
}

.portal-data-table-delete:hover,
.portal-data-table-delete:focus-visible {
  background: color-mix(in srgb, #9a3f35 9%, transparent);
  outline: none;
}

.portal-data-table-delete:disabled {
  opacity: .38;
  cursor: not-allowed;
}

@media (max-width: 1080px) {
  .header-shell {
    grid-template-columns: minmax(150px, 190px) minmax(0, 1fr) auto;
  }

  .brand {
    max-width: 190px;
  }

  .nav-auth {
    display: none;
  }

  .menu-toggle {
    display: inline-grid;
  }
}

@media (max-width: 980px) {
  .site-header {
    padding-top: 10px;
  }

  .header-shell {
    grid-template-columns: 1fr auto;
    gap: var(--space-3);
    min-height: 68px;
    padding: 10px 12px;
    border-radius: 20px;
  }

  .nav-links {
    display: none;
  }

  .menu-toggle {
    display: inline-grid;
  }

  .hero,
  .showcase,
  .features,
  .stats {
    grid-template-columns: 1fr;
  }

  .feature-card.large {
    grid-row: auto;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  .hero-copy h1 {
    max-width: 12ch;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding-top: 8px;
    backdrop-filter: blur(12px);
  }

  .container {
    width: min(var(--content), calc(100% - 1rem));
  }

  .header-shell {
    border-radius: 18px;
  }

  .brand {
    max-width: min(100%, 200px);
    gap: 10px;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand-title {
    font-size: 1.2rem;
  }

  .brand-subtitle {
    font-size: 0.64rem;
    letter-spacing: 0.055em;
  }

  .hero-copy,
  .hero-panel,
  .panel,
  .feature-card,
  .stat-card {
    border-radius: var(--radius-lg);
  }

  .mini-grid {
    grid-template-columns: 1fr;
  }

  .mobile-menu-panel {
    top: 8px;
    right: 8px;
    bottom: 8px;
    width: min(100vw - 16px, 380px);
    padding: var(--space-4);
    border-radius: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}