/*
Theme Name: Atrium
Theme URI: https://atrium.modesign.site
Author: Artemiy V Diakov
Author URI: https://modesign.site
Description: Тема лендинга Atrium — автономный локальный ИИ (on-prem / air-gap) для организации, финансов, документов, HR и операций. Полный контент из исходного сайта.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: atrium
Tags: one-page, landing, business, custom-menu, custom-logo, translation-ready
*/

/* ========== CSS Variables ========== */
:root {
  --color-background: #0a0a0b;
  --color-surface: #121214;
  --color-elevated: #1a1a1d;
  --color-muted: #1f1f23;
  --color-border: #2a2a2e;
  --color-foreground: #f4f4f5;
  --color-muted-foreground: #a1a1aa;
  --color-subtle: #71717a;
  --color-accent: #3b82f6;
  --color-accent-foreground: #ffffff;
  --color-ok: #22c55e;
  --color-ring: #3b82f6;
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
  --radius: 0.75rem;
  --max-w: 80rem;
  --header-h: 4rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { font-weight: 500; line-height: 1.2; letter-spacing: -0.02em; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.sr-only:focus {
  position: fixed; left: 1rem; top: 1rem; z-index: 50; width: auto; height: auto;
  padding: 0.5rem 1rem; margin: 0; overflow: visible; clip: auto;
  background: var(--color-accent); color: var(--color-accent-foreground);
  border-radius: 0.375rem; white-space: normal;
}

/* ========== Layout ========== */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}
@media (min-width: 768px) {
  .container { padding-left: 2rem; padding-right: 2rem; }
}
.section { margin-top: 6rem; }
@media (min-width: 768px) { .section { margin-top: 8rem; } }
.section-heading { margin-bottom: 0; }
.eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-subtle);
}
.section-title {
  margin-top: 1rem;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 500;
  color: var(--color-foreground);
}
.section-title .italic { font-style: italic; }
.section-lead {
  margin-top: 1rem;
  max-width: 36rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-muted-foreground);
}
@media (min-width: 768px) {
  .section-lead { font-size: 1.125rem; }
}

/* ========== Header ========== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.site-header.is-scrolled {
  background: color-mix(in oklab, var(--color-background) 80%, transparent);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 0.35rem;
  background: linear-gradient(135deg, var(--color-accent), #8b5cf6);
}
.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
}
.nav-desktop a {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  transition: color 0.15s;
}
.nav-desktop a:hover { color: var(--color-foreground); }
.header-actions { display: flex; align-items: center; gap: 0.5rem; }
.btn-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.5rem;
  color: var(--color-foreground);
}
@media (min-width: 1024px) {
  .btn-menu { display: none; }
}
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-background) 80%, transparent);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.mobile-nav.is-open { opacity: 1; visibility: visible; }
.mobile-nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 20rem;
  background: var(--color-surface);
  padding: 1.5rem;
  box-shadow: -8px 0 32px rgba(0,0,0,0.4);
  transform: translateX(100%);
  transition: transform 0.25s var(--ease);
}
.mobile-nav.is-open .mobile-nav-panel { transform: translateX(0); }
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-nav-links {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.mobile-nav-links a {
  display: flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0 0.5rem;
  border-radius: 0.375rem;
  font-size: 1.125rem;
}
.mobile-nav-links a:hover { background: var(--color-elevated); }

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-foreground);
}
.btn-primary:hover { background: color-mix(in oklab, var(--color-accent) 90%, white); }
.btn-outline {
  background: transparent;
  color: var(--color-foreground);
  box-shadow: inset 0 0 0 1px var(--color-border);
}
.btn-outline:hover { background: var(--color-elevated); }
.btn-lg { min-height: 3rem; padding: 0 1.5rem; font-size: 0.9375rem; }
.btn-block { width: 100%; }

/* ========== Cards & Surfaces ========== */
.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border);
  padding: 1.5rem;
}
@media (min-width: 768px) {
  .card { padding: 1.75rem; }
}
.card-elevated {
  background: var(--color-elevated);
  box-shadow: 0 0 0 1px var(--color-border);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 7rem 0 0;
}
@media (min-width: 768px) {
  .hero { padding-top: 8rem; }
}
.hero-grid {
  display: grid;
  gap: 2.5rem;
  align-items: end;
}
@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }
}
.hero h1 {
  margin-top: 1.25rem;
  max-width: 56rem;
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 500;
  letter-spacing: -0.03em;
}
.hero h1 .italic { font-style: italic; }
.hero-lead {
  margin-top: 1.5rem;
  max-width: 36rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-muted-foreground);
}
@media (min-width: 768px) {
  .hero-lead { font-size: 1.125rem; }
}
.hero-actions {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .hero-actions { flex-direction: row; align-items: center; }
}
.trust-list {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
.trust-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}
.trust-dot {
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  background: var(--color-accent);
}
.hero-photo {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--color-muted);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.figcaption {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}

/* Ops Console mock */
.ops-console {
  margin-top: 3rem;
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-border);
  overflow: hidden;
}
.ops-console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
}
.ops-console-status { color: var(--color-ok); }
.ops-console-body {
  display: grid;
  gap: 0;
}
@media (min-width: 768px) {
  .ops-console-body { grid-template-columns: 1fr 1fr; }
}
.ops-line {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
  line-height: 1.5;
}
.ops-line strong { color: var(--color-foreground); font-weight: 500; }

/* ========== Stats ========== */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}
.stat-cell {
  background: var(--color-surface);
  padding: 1.5rem 1.25rem;
}
@media (min-width: 768px) {
  .stat-cell { padding: 2rem 1.5rem; }
}
.stat-value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.03em;
}
.stat-label {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--color-muted-foreground);
}

/* ========== Problem / Principles / Method grids ========== */
.grid-3 {
  display: grid;
  gap: 0.75rem;
  margin-top: 3rem;
}
@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
.num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-subtle);
}
.card h3 {
  margin-top: 1rem;
  font-size: 1.375rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.card p {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}

.principles-list {
  margin-top: 3rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.principles-list li {
  display: grid;
  gap: 0.75rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-border);
}
.principles-list li:last-child { border-bottom: none; }
@media (min-width: 768px) {
  .principles-list li {
    grid-template-columns: 5rem 0.7fr 1fr;
    gap: 2rem;
    align-items: start;
  }
}
.principles-list h3 {
  font-size: 1.375rem;
  font-weight: 500;
}
.principles-list p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}
@media (min-width: 768px) {
  .principles-list p { font-size: 1rem; }
}

.method-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 3rem;
}
@media (min-width: 1024px) {
  .method-grid { grid-template-columns: repeat(3, 1fr); }
}
.method-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border);
  padding: 1.5rem;
}
@media (min-width: 768px) {
  .method-card { padding: 2rem; }
}
.method-card h3 {
  margin-top: 1.5rem;
  font-size: 2.25rem;
  font-weight: 500;
}
.method-card p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}

/* ========== Modules (Capabilities) ========== */
.modules-layout {
  display: grid;
  gap: 1rem;
  margin-top: 3rem;
}
@media (min-width: 1024px) {
  .modules-layout {
    grid-template-columns: 0.85fr 1.15fr;
  }
}
.module-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.module-tab {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.5rem;
  padding: 0 1rem;
  border-radius: 0.5rem;
  text-align: left;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted-foreground);
  transition: background 0.15s, color 0.15s;
}
.module-tab:hover {
  background: var(--color-surface);
  color: var(--color-foreground);
}
.module-tab.is-active {
  background: var(--color-elevated);
  color: var(--color-foreground);
  box-shadow: 0 0 0 1px var(--color-border);
}
.module-panel {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border);
  padding: 1.5rem;
}
@media (min-width: 768px) {
  .module-panel { padding: 2rem; }
}
.module-panel-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.module-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.375rem;
  background: var(--color-muted);
}
.module-panel h3 {
  font-size: 1.75rem;
  font-weight: 500;
}
.module-panel > p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}
.module-points {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.module-points li {
  display: flex;
  gap: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.65;
}
.module-points li::before {
  content: "";
  flex-shrink: 0;
  width: 0.25rem;
  height: 0.25rem;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
}
.module-log {
  margin-top: 2rem;
  border-radius: 0.5rem;
  background: var(--color-background);
  padding: 1rem;
}
.module-log-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-subtle);
}
.module-log ul {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.module-log li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-muted-foreground);
}

/* ========== Architecture ========== */
.arch-layout {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}
@media (min-width: 1024px) {
  .arch-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 4rem;
  }
}
.blade-box {
  margin-top: 2.5rem;
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-border);
  padding: 0.5rem;
}
.blade-inner {
  border-radius: 0.5rem;
  background: var(--color-background);
  overflow: hidden;
}
.blade-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
}
.blade-list li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.75rem;
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
}
.blade-list li:last-child { border-bottom: none; }
.blade-list .num { margin-top: 0.15rem; }
.blade-list strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
}
.blade-list span {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}
.modes {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.75rem;
}
.mode-card {
  border-radius: 0.5rem;
  background: var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-border);
  padding: 0.75rem 1rem;
}
.mode-card strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
}
.mode-card p {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}

/* ========== Security ========== */
.security-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 3rem;
}
@media (min-width: 768px) {
  .security-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .security-grid { grid-template-columns: repeat(3, 1fr); }
}
.security-card h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-top: 0;
}
.security-card p {
  margin-top: 0.5rem;
}
.compare-table-wrap {
  margin-top: 3rem;
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}
.compare-table thead {
  background: var(--color-elevated);
  color: var(--color-muted-foreground);
}
.compare-table th,
.compare-table td {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border);
}
@media (min-width: 768px) {
  .compare-table th,
  .compare-table td { padding: 0.75rem 1.5rem; }
}
.compare-table tbody { background: var(--color-surface); }
.compare-table th[scope="row"] {
  font-weight: 500;
  color: var(--color-foreground);
}

/* ========== Deploy ========== */
.deploy-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 3rem;
}
@media (min-width: 768px) {
  .deploy-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .deploy-grid { grid-template-columns: repeat(4, 1fr); }
}
.deploy-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border);
  padding: 1.5rem;
}
.deploy-card-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}
.deploy-card .time {
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
}
.deploy-card h3 {
  margin-top: 1rem;
  font-size: 1.75rem;
  font-weight: 500;
}
.deploy-card p {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}

/* ========== Industries & Cases ========== */
.two-col-end {
  display: grid;
  gap: 2rem;
  align-items: end;
}
@media (min-width: 1024px) {
  .two-col-end { grid-template-columns: 1fr 1fr; }
}
.industry-list,
.cases-list {
  margin-top: 3rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.industry-list > div,
.cases-list > li {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
}
.industry-list > div:last-child,
.cases-list > li:last-child { border-bottom: none; }
@media (min-width: 768px) {
  .industry-list > div {
    grid-template-columns: 0.7fr 1fr;
    gap: 2.5rem;
  }
}
@media (min-width: 1024px) {
  .cases-list > li {
    grid-template-columns: 0.55fr 1.45fr;
    gap: 1rem;
    align-items: start;
  }
}
.industry-list dt {
  font-size: 1.375rem;
  font-weight: 500;
}
.industry-list dd {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}
@media (min-width: 768px) {
  .industry-list dd { font-size: 1rem; }
}
.case-metric {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.03em;
}
.case-label {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}
.case-place {
  font-size: 0.875rem;
  font-weight: 500;
}
.case-text {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}
@media (min-width: 768px) {
  .case-text { font-size: 1rem; }
}
.photo-wide {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--color-muted);
}
.photo-wide img { width: 100%; height: 100%; object-fit: cover; }

/* ========== ROI ========== */
.roi-layout {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 1024px) {
  .roi-layout {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: start;
  }
}
.roi-form { display: flex; flex-direction: column; gap: 1.5rem; }
.roi-field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}
.roi-field .value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}
.roi-field input[type="range"] {
  width: 100%;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.roi-results {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.roi-results dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-subtle);
}
.roi-results dd {
  margin-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-variant-numeric: tabular-nums;
}
.roi-note {
  margin-top: 1rem;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-subtle);
}

/* ========== Pricing ========== */
.pricing-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 3rem;
}
@media (min-width: 1024px) {
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
}
.plan {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  padding: 1.5rem;
}
@media (min-width: 768px) {
  .plan { padding: 2rem; }
}
.plan-default {
  background: var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-border);
}
.plan-featured {
  background: var(--color-elevated);
  box-shadow: 0 0 0 1px var(--color-border);
}
.plan-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.plan-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted-foreground);
}
.plan-badge {
  border-radius: 999px;
  background: var(--color-accent);
  color: var(--color-accent-foreground);
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
}
.plan-price {
  margin-top: 0.75rem;
  font-size: 2.25rem;
  font-weight: 500;
  letter-spacing: -0.03em;
}
.plan-period {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-subtle);
}
.plan-desc {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}
.plan-features {
  margin-top: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.plan-features li {
  display: flex;
  gap: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.4;
}
.plan-features li::before {
  content: "✓";
  color: var(--color-ok);
  flex-shrink: 0;
  font-weight: 600;
}
.plan .btn { margin-top: 2rem; }

/* ========== FAQ ========== */
.faq-layout {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 1024px) {
  .faq-layout {
    grid-template-columns: 0.8fr 1.2fr;
  }
}
.faq-list {
  border-top: 1px solid var(--color-border);
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  text-align: left;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-foreground);
}
.faq-trigger::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.25rem;
  color: var(--color-subtle);
  transition: transform 0.2s;
}
.faq-item.is-open .faq-trigger::after {
  content: "−";
}
.faq-content {
  display: none;
  padding-bottom: 1.25rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted-foreground);
}
.faq-item.is-open .faq-content { display: block; }

/* ========== Contact ========== */
.contact-box {
  display: grid;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-border);
}
@media (min-width: 1024px) {
  .contact-box { grid-template-columns: 0.9fr 1.1fr; }
}
.contact-info {
  padding: 1.5rem;
}
@media (min-width: 768px) {
  .contact-info { padding: 2.5rem; }
}
.contact-dl {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact-dl dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-subtle);
}
.contact-dl dd {
  margin-top: 0.25rem;
  font-size: 0.875rem;
}
.contact-dl dd.muted {
  color: var(--color-muted-foreground);
  line-height: 1.65;
}
.contact-form-wrap {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
}
@media (min-width: 1024px) {
  .contact-form-wrap {
    border-top: none;
    border-left: 1px solid var(--color-border);
  }
}
@media (min-width: 768px) {
  .contact-form-wrap { padding: 2.5rem; }
}
.contact-form {
  display: grid;
  gap: 1rem;
}
@media (min-width: 640px) {
  .contact-form { grid-template-columns: 1fr 1fr; }
}
.field { display: flex; flex-direction: column; gap: 0.375rem; }
.field label {
  font-size: 0.875rem;
  font-weight: 500;
}
.field input,
.field select,
.field textarea {
  height: 2.75rem;
  padding: 0 0.75rem;
  border-radius: 0.375rem;
  background: var(--color-elevated);
  box-shadow: 0 0 0 1px var(--color-border);
  border: none;
  outline: none;
}
.field textarea {
  height: auto;
  min-height: 5rem;
  padding: 0.75rem;
  resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  box-shadow: 0 0 0 2px var(--color-ring);
}
.field-full { grid-column: 1 / -1; }
.form-error {
  grid-column: 1 / -1;
  font-size: 0.875rem;
  color: #f87171;
}
.form-success h3 {
  font-size: 2.25rem;
  font-weight: 500;
}
.form-success p {
  margin-top: 0.75rem;
  max-width: 28rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}

/* ========== Footer ========== */
.site-footer {
  margin-top: 6rem;
  border-top: 1px solid var(--color-border);
}
@media (min-width: 768px) {
  .site-footer { margin-top: 8rem; }
}
.footer-main {
  display: grid;
  gap: 2.5rem;
  padding: 3rem 0;
}
@media (min-width: 768px) {
  .footer-main {
    grid-template-columns: 1.2fr 0.8fr 0.8fr;
  }
}
.footer-desc {
  margin-top: 1rem;
  max-width: 24rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted-foreground);
}
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-nav a {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  transition: color 0.15s;
}
.footer-nav a:hover { color: var(--color-foreground); }
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-subtle);
}
@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ========== Integrations strip ========== */
.integrations {
  margin-top: 4rem;
  text-align: center;
}
.integrations p {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-subtle);
}
.integrations-list {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.5rem;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}

/* ========== Utilities ========== */
.mt-0 { margin-top: 0; }
.hidden { display: none !important; }