/* =====================================================
   Atrial AI — Corporate Site styles
   Builds on colors_and_type.css. Mobile-first responsive.
   ===================================================== */
@import url('./colors_and_type.css');

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg1);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }

/* ===== Layout primitives ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 768px) { .container { padding: 0 40px; } }
@media (min-width: 1024px) { .container { padding: 0 48px; } }

.section { padding: 64px 0; }
@media (min-width: 768px) { .section { padding: 96px 0; } }
@media (min-width: 1200px) { .section { padding: 120px 0; } }

.section.dark { background: var(--atrial-dark); color: var(--atrial-white); }
.section.dark p,
.section.dark li { color: rgba(255,255,255,0.75); }

.overline {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg2);
  display: inline-block;
  margin: 0 0 16px;
}
.section.dark .overline { color: var(--atrial-blue-light); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 14px; font-weight: 600;
  padding: 12px 20px;
  border-radius: 8px;
  cursor: pointer;
  border: 1.5px solid transparent;
  text-decoration: none;
  transition: background var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard);
  white-space: nowrap;
  line-height: 1;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }

.btn-primary { background: var(--atrial-blue); color: #fff; }
.btn-primary:hover { background: var(--atrial-blue-hover); }

.btn-secondary { background: transparent; color: var(--atrial-blue); border-color: var(--atrial-blue); }
.btn-secondary:hover { background: var(--accent-soft); }

.section.dark .btn-secondary { color: #fff; border-color: rgba(255,255,255,0.35); }
.section.dark .btn-secondary:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.6); }

.btn .arrow { transition: transform var(--dur-base) var(--ease-standard); }
.btn:hover .arrow { transform: translateX(3px); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header.on-dark {
  background: rgba(4,18,34,0.85);
  border-bottom-color: var(--atrial-dark-border);
}
.site-header .inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  gap: 16px;
}
@media (min-width: 768px) {
  .site-header .inner { padding: 16px 40px; }
}
/* The brand lockup wraps the live AA-Inline-Sec component (site/aa-lockup.jsx).
   Rendered as DOM so it stays crisp at any DPR \u2014 same component the design
   system's logo-pack export tool rasterizes. DO NOT replace with a hand-built
   icon + retyped wordmark; use AAInlineSec for any approved lockup placement. */
.brand-lockup {
  display: inline-flex; align-items: center;
  text-decoration: none; border: 0;
  padding: 4px 0;
}

.site-nav { display: none; gap: 28px; }
@media (min-width: 900px) { .site-nav { display: flex; } }
.site-nav a {
  color: var(--fg1); font-size: 14px; font-weight: 500;
  border: 0; padding: 6px 0; transition: color var(--dur-base);
}
.on-dark .site-nav a { color: rgba(255,255,255,0.8); }
.site-nav a:hover { color: var(--atrial-blue); border: 0; }
.on-dark .site-nav a:hover { color: var(--atrial-blue-light); }

.header-cta { display: flex; gap: 10px; align-items: center; }
.header-cta .btn { padding: 9px 16px; font-size: 13px; }
.header-cta .btn-secondary { display: none; }
@media (min-width: 600px) { .header-cta .btn-secondary { display: inline-flex; } }

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: transparent; border: 0; cursor: pointer; padding: 0;
  color: inherit;
}
@media (min-width: 900px) { .nav-toggle { display: none; } }
.nav-toggle svg { width: 22px; height: 22px; stroke: currentColor; }
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: #fff;
}
.on-dark .mobile-menu { background: var(--atrial-dark); border-top-color: var(--atrial-dark-border); }
.mobile-menu.open { display: block; }
.mobile-menu .inner {
  max-width: 1200px; margin: 0 auto;
  padding: 12px 24px 20px;
  display: flex; flex-direction: column; gap: 4px;
}
.mobile-menu a {
  padding: 12px 8px;
  font-size: 16px; font-weight: 500;
  color: var(--fg1); border: 0;
  border-bottom: 1px solid var(--border);
}
.on-dark .mobile-menu a { color: rgba(255,255,255,0.9); border-bottom-color: var(--atrial-dark-border); }

/* ===== Hero ===== */
.hero {
  background: var(--atrial-dark);
  color: var(--atrial-white);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) { .hero { padding: 96px 0 96px; } }
@media (min-width: 1024px) { .hero { padding: 112px 0 120px; } }

.hero .inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 768px) { .hero .inner { padding: 0 40px; } }
@media (min-width: 1024px) {
  .hero .inner { grid-template-columns: 1.05fr 1fr; gap: 72px; padding: 0 48px; }
}

.hero .overline {
  color: var(--atrial-blue-light);
  margin-bottom: 20px;
  font-size: 12px;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: #fff;
  margin: 0 0 24px;
  text-wrap: balance;
}
.hero h1 em {
  font-style: italic;
  color: var(--atrial-blue-light);
  font-weight: 800;
}
.hero .sub {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: rgba(255,255,255,0.75);
  max-width: 620px;
  margin: 0 0 36px;
  font-weight: 400;
}
.hero .sub em { color: #fff; font-style: italic; font-weight: 600; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .actions .btn-secondary { color: #fff; border-color: rgba(255,255,255,0.35); }
.hero .actions .btn-secondary:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.6); }

/* Hero visual: stylized console preview frame */
.hero-visual {
  position: relative;
  border-radius: 14px;
  background: var(--atrial-dark-container);
  border: 1px solid var(--atrial-dark-border);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04) inset;
}
.hero-visual .chrome {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--atrial-dark-border);
  background: rgba(0,0,0,0.2);
}
.hero-visual .chrome .dot { width: 9px; height: 9px; border-radius: 50%; background: #3B4A63; }
.hero-visual .chrome .url {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.04em;
}
.hero-visual .body { padding: 18px; }
.hero-visual .kpi-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 8px; margin-bottom: 14px;
}
.hero-visual .kpi {
  padding: 10px 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--atrial-dark-border);
  border-radius: 6px;
}
.hero-visual .kpi .l {
  font-size: 9px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 4px;
}
.hero-visual .kpi .v {
  font-size: 18px; font-weight: 700; color: #fff; line-height: 1;
}
.hero-visual .kpi .v.brand { color: var(--atrial-blue-light); }
.hero-visual .kpi .v.warn { color: var(--atrial-warning); }
.hero-visual .kpi .v.danger { color: var(--atrial-danger); }

.hero-visual .stream {
  background: rgba(0,0,0,0.25);
  border-radius: 6px;
  border: 1px solid var(--atrial-dark-border);
  overflow: hidden;
}
.hero-visual .stream .row {
  display: grid;
  grid-template-columns: 70px 1fr 90px;
  gap: 10px;
  padding: 10px 12px;
  border-top: 1px solid var(--atrial-dark-border);
  align-items: center;
}
.hero-visual .stream .row:first-child { border-top: 0; }
.hero-visual .stream .ts {
  font-family: var(--font-mono); font-size: 10px;
  color: rgba(255,255,255,0.45);
}
.hero-visual .stream .msg {
  font-size: 11.5px;
  color: rgba(255,255,255,0.85);
  line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.hero-visual .stream .msg .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 3px;
  margin-right: 6px;
  letter-spacing: 0.04em;
  vertical-align: 1px;
}
.hero-visual .stream .msg .tag.in { background: rgba(77,127,232,0.15); color: var(--atrial-blue-light); }
.hero-visual .stream .msg .tag.out { background: rgba(123,126,138,0.18); color: #A8ABB4; }
.hero-visual .stream .verdict {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: right;
}
.hero-visual .stream .verdict.pass { color: var(--atrial-success); }
.hero-visual .stream .verdict.flag { color: var(--atrial-warning); }
.hero-visual .stream .verdict.block { color: var(--atrial-danger); }
.hero-visual .stream .row.flagged { background: rgba(216,150,19,0.04); }
.hero-visual .stream .row.blocked { background: rgba(209,56,75,0.06); }

.hero-visual .pulse {
  position: absolute; top: 14px; right: 16px;
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 9px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--atrial-success);
  z-index: 3;
}
.hero-visual .pulse .led {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--atrial-success);
  box-shadow: 0 0 0 0 rgba(30,158,106,0.4);
  animation: pulseLed 2s var(--ease-standard) infinite;
}
@keyframes pulseLed {
  0%   { box-shadow: 0 0 0 0 rgba(30,158,106,0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(30,158,106,0); }
  100% { box-shadow: 0 0 0 0 rgba(30,158,106,0); }
}

/* Hero trust bar (below content) */
.trust-strip {
  background: var(--atrial-dark);
  color: rgba(255,255,255,0.7);
  border-top: 1px solid var(--atrial-dark-border);
  border-bottom: 1px solid var(--atrial-dark-border);
  padding: 18px 0;
}
.trust-strip .inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 24px;
}
@media (min-width: 768px) { .trust-strip .inner { padding: 0 40px; grid-template-columns: repeat(4, 1fr); } }
.trust-strip .item {
  display: flex; align-items: center; gap: 10px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase;
}
.trust-strip .item .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--atrial-blue-light);
  flex-shrink: 0;
}

/* ===== Section heads ===== */
.section-head { max-width: 760px; margin-bottom: 48px; }
@media (min-width: 768px) { .section-head { margin-bottom: 64px; } }
.section-head h2 {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--fg1);
  margin: 0 0 16px;
  text-wrap: balance;
}
.section-head h2 em {
  font-style: italic;
  color: var(--atrial-blue);
  font-weight: 800;
}
.section.dark .section-head h2 { color: #fff; }
.section.dark .section-head h2 em { color: var(--atrial-blue-light); }
.section-head .lede {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.55;
  color: var(--fg2);
  max-width: 640px;
}
.section.dark .section-head .lede { color: rgba(255,255,255,0.7); }

/* ===== Attack surface (positioning split) ===== */
.attack-surface { background: var(--bg-container); }
.split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) { .split-grid { grid-template-columns: 1fr 1fr; gap: 20px; } }
.split-col {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}
@media (min-width: 768px) { .split-col { padding: 36px; } }
.split-col .kicker {
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--fg2);
  display: block; margin-bottom: 14px;
}
.split-col.us .kicker { color: var(--atrial-blue); }
.split-col h3 {
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700; color: var(--fg1);
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}
.split-col h3 em { font-style: italic; color: var(--atrial-blue); }
.split-col .desc {
  color: var(--fg2); font-size: 15px; line-height: 1.6;
  margin: 0 0 20px;
}
.split-col ul { list-style: none; padding: 0; margin: 0; }
.split-col li {
  font-size: 14.5px; color: var(--fg1);
  padding: 11px 0;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px;
}
.split-col li:first-of-type { border-top: 0; padding-top: 4px; }
.split-col li .tick {
  width: 16px; height: 16px; border-radius: 999px;
  background: var(--atrial-blue);
  color: #fff; font-size: 9px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.split-col.them li .tick {
  background: transparent;
  border: 1.5px solid var(--border-strong);
  color: transparent;
}

/* ===== Feature grid ===== */
.features { background: var(--atrial-dark); }
.features .grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 600px) { .features .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .features .grid { grid-template-columns: 1fr 1fr 1fr 1fr; } }

.feature-group {
  background: var(--atrial-dark-container);
  border: 1px solid var(--atrial-dark-border);
  border-radius: 10px;
  padding: 24px;
  transition: border-color var(--dur-base), transform var(--dur-base);
}
.feature-group:hover {
  border-color: var(--atrial-blue-light);
  transform: translateY(-2px);
}
.feature-group .dir {
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--atrial-blue-light);
  margin-bottom: 14px;
  display: block;
}
.feature-group h4 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.feature-group ul { list-style: none; padding: 0; margin: 0; }
.feature-group li {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  line-height: 1.45;
  padding: 8px 0;
  border-top: 1px solid var(--atrial-dark-border);
}
.feature-group li:first-child { border-top: 0; padding-top: 0; }

/* ===== Tailored to you ===== */
.tailored { background: #fff; }
.tailored-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) { .tailored-grid { grid-template-columns: 1fr 1fr 1fr; gap: 20px; } }
.tailored-card {
  position: relative;
  background: var(--bg-container);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px 28px;
  transition: border-color var(--dur-base), transform var(--dur-base), box-shadow var(--dur-base);
}
.tailored-card:hover {
  border-color: var(--atrial-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-3);
}
.tailored-card .num {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--atrial-blue);
  margin-bottom: 16px;
}
.tailored-card .label {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg2);
  margin-bottom: 10px;
}
.tailored-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--fg1);
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 0 0 12px;
}
.tailored-card p {
  font-size: 14.5px;
  color: var(--fg2);
  line-height: 1.55;
  margin: 0;
}

/* ===== Footer brand lockup wrapper ===== */
.footer-brand { display: inline-block; text-decoration: none; border: 0; margin-bottom: 8px; }

/* ===== Quote block ===== */
.quote-section {
  background: var(--atrial-dark);
  color: #fff;
}
.quote-section .inner { max-width: 920px; }
.quote-section blockquote {
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: #fff;
  font-weight: 500;
  margin: 0 0 28px;
  text-wrap: pretty;
}
.quote-section blockquote em { color: var(--atrial-blue-light); font-style: italic; font-weight: 700; }
.quote-section cite {
  display: block;
  font-size: 13px;
  color: var(--atrial-slate);
  font-style: normal;
  letter-spacing: 0.04em;
}
.quote-section cite em {
  font-style: italic;
  color: rgba(255, 255, 255, 0.85);
}
.quote-section cite a {
  color: inherit;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: color var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard);
}
.quote-section cite a:hover {
  color: var(--atrial-blue-light);
  border-bottom-color: var(--atrial-blue-light);
}

/* ===== Contact ===== */
.contact { background: var(--bg-container); }
.contact .layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
@media (min-width: 900px) {
  .contact .layout { grid-template-columns: 1fr 1.2fr; gap: 72px; align-items: start; }
}
.contact-intro h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.15;
  color: var(--fg1); margin: 0 0 16px;
}
.contact-intro p {
  font-size: 17px; color: var(--fg2); line-height: 1.55; margin: 0 0 28px;
}
.contact-meta {
  display: flex; flex-direction: column; gap: 18px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-top: 24px;
}
.contact-meta .item .l {
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--fg2); margin-bottom: 4px;
}
.contact-meta .item .v {
  font-size: 16px; color: var(--fg1); font-weight: 500;
}
.contact-meta .item .v a { color: var(--atrial-blue); }

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: var(--shadow-2);
}
@media (min-width: 600px) { .contact-form { padding: 36px; } }
.form-row {
  display: grid; grid-template-columns: 1fr; gap: 16px;
  margin-bottom: 16px;
}
@media (min-width: 600px) { .form-row.two { grid-template-columns: 1fr 1fr; } }
.field label {
  display: block;
  font-size: 12px; font-weight: 600;
  color: var(--fg1); margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.field label .req { color: var(--atrial-blue); margin-left: 2px; }
.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--fg1);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 11px 14px;
  transition: border-color var(--dur-base), box-shadow var(--dur-base);
}
.field textarea { resize: vertical; min-height: 120px; line-height: 1.5; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--atrial-blue);
  box-shadow: var(--shadow-focus);
}
.contact-form .submit-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-top: 8px;
  flex-wrap: wrap;
}
.contact-form .legal {
  font-size: 12px; color: var(--fg2); line-height: 1.5;
  flex: 1; min-width: 200px;
}
.contact-form .btn { padding: 13px 22px; }
.contact-form .btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.contact-form .btn:disabled:hover { background: var(--atrial-blue); }
.field input:disabled,
.field select:disabled,
.field textarea:disabled {
  background: var(--bg-container);
  color: var(--fg2);
  cursor: not-allowed;
}

.form-error {
  margin: 4px 0 12px;
  padding: 12px 14px;
  background: rgba(209, 56, 75, 0.06);
  border: 1px solid rgba(209, 56, 75, 0.25);
  border-radius: 6px;
  color: var(--atrial-danger);
  font-size: 13px;
  line-height: 1.5;
}

.form-success {
  text-align: center; padding: 36px 12px;
}
.form-success .check {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(0,64,220,0.08);
  color: var(--atrial-blue);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.form-success h3 {
  font-size: 22px; font-weight: 700; color: var(--fg1);
  margin: 0 0 8px; letter-spacing: -0.01em;
}
.form-success p { color: var(--fg2); font-size: 15px; margin: 0; max-width: 360px; margin-left: auto; margin-right: auto; }

/* ===== Footer ===== */
.site-footer {
  background: var(--atrial-dark);
  color: rgba(255,255,255,0.55);
  padding: 56px 0 32px;
}
.site-footer .inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
@media (min-width: 768px) {
  .site-footer .inner { padding: 0 40px; grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
}
.site-footer .brand-block .tag {
  font-size: 11px; font-weight: 700; letter-spacing: 0.2em;
  color: var(--atrial-blue-light); margin: 16px 0 12px;
}
.site-footer .brand-block .blurb {
  font-size: 13.5px; color: rgba(255,255,255,0.6); line-height: 1.55;
  margin: 0; max-width: 360px;
}
.site-footer .col h5 {
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin: 0 0 16px;
}
.site-footer .col a {
  display: block;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  padding: 5px 0;
  border: 0;
}
.site-footer .col a:hover { color: #fff; border: 0; }
.site-footer .row-bottom {
  max-width: 1200px; margin: 36px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid var(--atrial-dark-border);
  display: flex; flex-wrap: wrap; justify-content: space-between;
  font-size: 11px; gap: 12px;
}
@media (min-width: 768px) { .site-footer .row-bottom { padding-left: 40px; padding-right: 40px; } }
.site-footer .confidential {
  font-weight: 700; letter-spacing: 0.18em;
  color: rgba(255,255,255,0.35);
}

/* ===== Mode toggle preview chip ===== */
.message-mode-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 10px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(77,127,232,0.14);
  color: var(--atrial-blue-light);
  margin-bottom: 24px;
}
.message-mode-badge .led {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--atrial-blue-light);
}

/* ===== Privacy Policy page ===== */
.policy-hero {
  background: var(--atrial-dark);
  color: #fff;
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) { .policy-hero { padding: 96px 0 80px; } }
.policy-hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -180px;
  width: 520px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,64,220,0.15) 0%, rgba(0,64,220,0) 60%);
  z-index: 1;
  pointer-events: none;
}
.policy-hero .container { position: relative; z-index: 2; }
.policy-hero .overline {
  color: var(--atrial-blue-light);
  margin-bottom: 18px;
  font-size: 11px;
}
.policy-hero h1 {
  font-size: clamp(34px, 5.4vw, 56px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.022em;
  color: #fff;
  margin: 0 0 20px;
  text-wrap: balance;
  max-width: 780px;
}
.policy-hero .sub {
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.55;
  color: rgba(255,255,255,0.72);
  max-width: 680px;
  margin: 0 0 36px;
}
.policy-hero .sub em { color: #fff; font-style: normal; font-weight: 600; }
.policy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 40px;
  border-top: 1px solid var(--atrial-dark-border);
  padding-top: 24px;
}
.policy-meta .item .l {
  font-size: 10px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 6px;
}
.policy-meta .item .v {
  font-size: 15px;
  font-weight: 500;
  color: #fff;
}
.policy-meta .item .v a { color: var(--atrial-blue-light); border: 0; }

.policy-section { background: #fff; padding: 64px 0 96px; }
@media (min-width: 768px) { .policy-section { padding: 80px 0 120px; } }

.policy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 900px) {
  .policy-grid { grid-template-columns: 220px 1fr; gap: 64px; align-items: start; }
}
@media (min-width: 1100px) {
  .policy-grid { grid-template-columns: 240px 1fr; }
}

/* Aside — table of contents */
.policy-aside {
  display: none;
}
@media (min-width: 900px) {
  .policy-aside {
    display: block;
    position: sticky;
    top: 88px;
    align-self: start;
  }
}
.policy-toc-label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg2);
  margin-bottom: 14px;
}
.policy-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc;
  border-left: 1px solid var(--border);
}
.policy-toc li {
  counter-increment: toc;
  position: relative;
}
.policy-toc a {
  display: block;
  font-size: 13px;
  line-height: 1.4;
  color: var(--fg2);
  padding: 8px 0 8px 16px;
  margin-left: -1px;
  border-left: 1px solid transparent;
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard);
}
.policy-toc a:hover { color: var(--atrial-blue); border-left-color: var(--atrial-blue); }

/* Article */
.policy-article { max-width: 760px; }
.policy-article section { padding: 12px 0 4px; }
.policy-article section + section { margin-top: 28px; }
.policy-article h2 {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--fg1);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 14px;
  scroll-margin-top: 90px;
}
.policy-article h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--fg1);
  letter-spacing: -0.005em;
  margin: 24px 0 10px;
}
.policy-article p,
.policy-article li {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--fg1);
}
.policy-article p { margin: 0 0 14px; }
.policy-article ul {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}
.policy-article li {
  position: relative;
  padding: 6px 0 6px 22px;
  color: var(--fg1);
}
.policy-article li::before {
  content: '';
  position: absolute;
  left: 4px; top: 16px;
  width: 6px; height: 6px;
  background: var(--atrial-blue);
  border-radius: 2px;
}
.policy-article a {
  color: var(--atrial-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(0,64,220,0.25);
  padding-bottom: 1px;
  transition: border-color var(--dur-base) var(--ease-standard);
}
.policy-article a:hover { border-bottom-color: var(--atrial-blue); }
.policy-article code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg-container);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--fg1);
}
.policy-article strong { font-weight: 700; color: var(--fg1); }

.policy-article .callout {
  background: var(--accent-soft);
  border: 1px solid rgba(0,64,220,0.15);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 18px 0 14px;
  font-size: 14.5px;
  color: var(--fg1);
  line-height: 1.6;
}

/* Cookie table */
.cookie-table-wrap {
  margin: 14px 0 22px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  overflow-x: auto;
}
.cookie-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  background: #fff;
  min-width: 540px;
}
.cookie-table th,
.cookie-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.cookie-table thead th {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg2);
  background: var(--bg-container);
  border-bottom-color: var(--border-strong);
}
.cookie-table tbody tr:last-child td { border-bottom: 0; }
.cookie-table td code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: 12.5px;
  color: var(--atrial-blue);
  font-weight: 600;
}

.policy-back {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

/* ===== Cookie notice bar (US-style informational notice) ===== */
.cookie-notice {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 60;
  display: flex;
  justify-content: center;
  pointer-events: none;
  animation: cookieNoticeIn 320ms var(--ease-emphasized) both;
}
@keyframes cookieNoticeIn {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.cookie-notice-inner {
  pointer-events: auto;
  max-width: 880px;
  width: 100%;
  background: var(--atrial-dark);
  color: rgba(255,255,255,0.88);
  border: 1px solid var(--atrial-dark-border);
  border-radius: 12px;
  box-shadow: var(--shadow-4);
  padding: 14px 16px 14px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 14px;
}
@media (max-width: 600px) {
  .cookie-notice { left: 12px; right: 12px; bottom: 12px; }
  .cookie-notice-inner {
    grid-template-columns: auto 1fr auto;
    grid-template-areas:
      "icon copy close"
      "btn  btn  btn";
    padding: 14px 14px 14px 16px;
    gap: 10px 12px;
  }
  .cookie-notice-icon    { grid-area: icon; }
  .cookie-notice-copy    { grid-area: copy; }
  .cookie-notice-close   { grid-area: close; }
  .cookie-notice-dismiss { grid-area: btn; justify-self: stretch; text-align: center; }
}
.cookie-notice-icon {
  display: inline-flex;
  align-items: center; justify-content: center;
  color: var(--atrial-blue-light);
  flex-shrink: 0;
}
.cookie-notice-copy {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(255,255,255,0.78);
  margin: 0;
}
.cookie-notice-copy a {
  color: var(--atrial-blue-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(77,127,232,0.4);
  padding-bottom: 1px;
  transition: border-color var(--dur-base) var(--ease-standard);
}
.cookie-notice-copy a:hover { border-bottom-color: var(--atrial-blue-light); }
.cookie-notice-dismiss {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--atrial-blue);
  border: 0;
  border-radius: 6px;
  padding: 9px 16px;
  cursor: pointer;
  transition: background var(--dur-base) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard);
  white-space: nowrap;
  line-height: 1;
}
.cookie-notice-dismiss:hover { background: var(--atrial-blue-hover); }
.cookie-notice-dismiss:active { transform: scale(0.98); }
.cookie-notice-dismiss:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.cookie-notice-close {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 28px; height: 28px;
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: color var(--dur-base), background var(--dur-base);
}
.cookie-notice-close:hover { color: #fff; background: rgba(255,255,255,0.06); }
.cookie-notice-close:focus-visible { outline: none; box-shadow: var(--shadow-focus); }

/* Subtle hero background ornament */
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,64,220,0.18) 0%, rgba(0,64,220,0) 60%);
  z-index: 1;
  pointer-events: none;
}
@media (max-width: 900px) {
  .hero::before { width: 380px; height: 380px; top: -120px; right: -120px; }
}