/* Charvaha marketing site — aligned with the app palette (forest green, card UI). */

:root {
  --cv-primary: #157a3a;
  --cv-primary-hover: #116430;
  --cv-on-primary: #ffffff;
  --cv-bg: #f4f8f5;
  --cv-card: #ffffff;
  --cv-muted: #f3f8f4;
  --cv-border: #d3e4d8;
  --cv-divider: #e3eee6;
  --cv-text: #122117;
  --cv-text-secondary: #3d4f41;
  --cv-text-tertiary: #5c6f60;
  --cv-shadow: 0 10px 28px rgba(16, 32, 16, 0.08);
  --cv-shadow-soft: 0 1px 2px rgba(16, 32, 16, 0.04);
  --cv-hero-from: #146c34;
  --cv-hero-to: #0b4d24;
  --cv-healthy: #157a3a;
  --cv-sick: #b91c1c;
  --cv-quarantine: #4f7a1c;
  --cv-chart: #0f766e;
  --cv-radius: 16px;
  --cv-radius-sm: 10px;
  --cv-radius-lg: 18px;
  --cv-nav: 72px;
  --cv-font: "Inter", "Segoe UI", system-ui, sans-serif;
  --cv-focus: 0 0 0 3px rgba(21, 122, 58, 0.28);
  color-scheme: light;
}

html[data-theme="dark"] {
  --cv-primary: #4ade80;
  --cv-primary-hover: #86efac;
  --cv-on-primary: #052e16;
  --cv-bg: #0a0a0a;
  --cv-card: #171717;
  --cv-muted: #262626;
  --cv-border: #3f3f46;
  --cv-divider: #2a2a2a;
  --cv-text: #f5f5f5;
  --cv-text-secondary: #a3a3a3;
  --cv-text-tertiary: #737373;
  --cv-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  --cv-shadow-soft: 0 1px 0 rgba(255, 255, 255, 0.04);
  --cv-hero-from: #1c1c1c;
  --cv-hero-to: #0a0a0a;
  --cv-healthy: #4ade80;
  --cv-sick: #f87171;
  --cv-quarantine: #fbbf24;
  --cv-chart: #2dd4bf;
  --cv-focus: 0 0 0 3px rgba(74, 222, 128, 0.35);
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--cv-font);
  background: var(--cv-bg);
  color: var(--cv-text);
  line-height: 1.6;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--cv-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--cv-primary-hover);
}

:focus-visible {
  outline: 2px solid var(--cv-primary);
  outline-offset: 3px;
}

::selection {
  background: rgba(21, 122, 58, 0.22);
  color: var(--cv-text);
}

.skip-link {
  position: absolute;
  left: 14px;
  top: -48px;
  z-index: 2000;
  background: var(--cv-primary);
  color: var(--cv-on-primary);
  padding: 10px 14px;
  border-radius: var(--cv-radius-sm);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 14px;
  color: var(--cv-on-primary);
}

section[id],
.legal-main {
  scroll-margin-top: calc(var(--cv-nav) + 16px);
}

h1,
h2,
h3,
.h1,
.h2,
.h3 {
  letter-spacing: -0.03em;
  line-height: 1.15;
  font-weight: 700;
  color: var(--cv-text);
}

.display-title {
  font-size: clamp(2.35rem, 4.6vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.038em;
  margin: 0 0 16px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  margin: 0 0 12px;
}

.lede,
.section-intro {
  color: var(--cv-text-secondary);
  font-size: 1.075rem;
  max-width: 40rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--cv-text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: var(--cv-primary);
}

.section {
  padding: 88px 0;
}

.section-tight {
  padding: 28px 0 8px;
}

.surface {
  background: var(--cv-muted);
}

@media (min-width: 1200px) {
  .container {
    max-width: 1120px;
  }
}

/* Navigation */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1030;
  min-height: var(--cv-nav);
  background: color-mix(in srgb, var(--cv-bg) 88%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease, background 160ms ease;
}

.site-nav.is-scrolled {
  border-bottom-color: var(--cv-border);
  background: color-mix(in srgb, var(--cv-bg) 94%, transparent);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--cv-text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
  min-height: 48px;
}

.navbar-brand:hover {
  color: var(--cv-text);
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--cv-border);
  overflow: hidden;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.35);
}

.brand-name {
  color: var(--cv-primary);
}

.nav-link {
  color: var(--cv-text-secondary) !important;
  font-weight: 500;
  font-size: 0.95rem;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px !important;
  border-radius: 10px;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--cv-text) !important;
  background: var(--cv-muted);
}

.navbar-toggler {
  width: 48px;
  height: 48px;
  border: 1px solid var(--cv-border);
  border-radius: 12px;
  color: var(--cv-text);
}

.navbar-toggler:focus {
  box-shadow: var(--cv-focus);
}

.navbar-toggler-icon {
  background-image: none;
  position: relative;
  width: 18px;
  height: 2px;
  background: var(--cv-text);
  display: inline-block;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--cv-text);
}

.navbar-toggler-icon::before {
  top: -6px;
}

.navbar-toggler-icon::after {
  top: 6px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  min-height: 48px;
  border-radius: 14px;
  font-weight: 600;
  padding: 10px 18px;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-brand {
  background: var(--cv-primary);
  border: 1px solid var(--cv-primary);
  color: var(--cv-on-primary);
}

.btn-brand:hover,
.btn-brand:focus {
  background: var(--cv-primary-hover);
  border-color: var(--cv-primary-hover);
  color: var(--cv-on-primary);
}

.btn-quiet {
  background: transparent;
  border: 1px solid var(--cv-border);
  color: var(--cv-text);
}

.btn-quiet:hover,
.btn-quiet:focus {
  background: var(--cv-muted);
  border-color: var(--cv-border);
  color: var(--cv-text);
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 14px;
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  color: var(--cv-text);
}

.btn-icon:hover,
.btn-icon:focus {
  background: var(--cv-muted);
  color: var(--cv-text);
}

/* Hero */

.hero {
  position: relative;
  padding: 56px 0 32px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -40px;
  top: -180px;
  background: radial-gradient(circle, rgba(21, 122, 58, 0.16), transparent 68%);
  pointer-events: none;
}

html[data-theme="dark"] .hero::before {
  background: radial-gradient(circle, rgba(74, 222, 128, 0.08), transparent 68%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 560px;
  padding-top: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-note {
  margin: 16px 0 0;
  color: var(--cv-text-tertiary);
  font-size: 0.9rem;
}

.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 12px 0 8px;
}

.phone {
  width: min(100%, 320px);
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: 28px;
  box-shadow: var(--cv-shadow);
  padding: 14px;
}

.phone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--cv-text-tertiary);
  font-size: 0.75rem;
  font-weight: 600;
}

.phone-top strong {
  color: var(--cv-primary);
  font-size: 0.95rem;
  letter-spacing: -0.03em;
}

.phone-hero-card {
  background: linear-gradient(145deg, var(--cv-hero-from), var(--cv-hero-to));
  color: #fff;
  border-radius: 16px;
  padding: 16px 16px 14px;
}

html[data-theme="dark"] .phone-hero-card {
  color: #f5f5f5;
  border: 1px solid var(--cv-border);
}

.phone-kicker {
  margin: 0;
  opacity: 0.85;
  font-size: 0.8rem;
}

.phone-stat {
  margin: 2px 0 0;
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.phone-stat-label {
  margin: 4px 0 0;
  opacity: 0.85;
  font-size: 0.85rem;
}

.phone-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.phone-metrics div {
  background: var(--cv-muted);
  border-radius: 12px;
  padding: 10px 8px;
  text-align: center;
}

.phone-metrics strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.phone-metrics span {
  color: var(--cv-text-tertiary);
  font-size: 0.7rem;
  font-weight: 600;
}

.phone-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.phone-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 4px;
  border-top: 1px solid var(--cv-divider);
}

.phone-list strong,
.phone-list small {
  display: block;
}

.phone-list strong {
  font-size: 0.88rem;
  letter-spacing: -0.02em;
}

.phone-list small {
  color: var(--cv-text-tertiary);
  font-size: 0.75rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 99px;
  flex: 0 0 auto;
}

.status-dot.healthy { background: var(--cv-healthy); }
.status-dot.sick { background: var(--cv-sick); }
.status-dot.quarantine { background: var(--cv-quarantine); }

.phone-caption {
  margin: 0;
  color: var(--cv-text-tertiary);
  font-size: 0.8rem;
  text-align: center;
  max-width: 320px;
}

.sync-card {
  width: min(100%, 320px);
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: 14px;
  box-shadow: var(--cv-shadow-soft);
  padding: 12px 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--cv-text-secondary);
  font-size: 0.85rem;
}

.sync-card i {
  color: var(--cv-text);
  font-size: 1.05rem;
  margin-top: 2px;
}

/* Proof row */

.proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.proof article {
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: var(--cv-radius);
  padding: 16px 16px 14px;
  box-shadow: var(--cv-shadow-soft);
  min-height: 100%;
}

.proof h3 {
  font-size: 0.98rem;
  margin: 10px 0 4px;
}

.proof p {
  margin: 0;
  color: var(--cv-text-secondary);
  font-size: 0.88rem;
}

.icon-tile {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--cv-muted);
  color: var(--cv-text-secondary);
  display: grid;
  place-items: center;
  font-size: 1.05rem;
}

/* Cards and features */

.feature-card,
.role-card,
.step-card,
.fact,
.prose section {
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: var(--cv-radius-lg);
  box-shadow: var(--cv-shadow-soft);
}

.feature-card {
  padding: 22px;
  height: 100%;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--cv-shadow);
}

.feature-card h3 {
  font-size: 1.1rem;
  margin: 14px 0 6px;
}

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

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  counter-reset: step;
}

.step-card {
  padding: 22px;
  position: relative;
}

.step-card .num {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cv-text-tertiary);
}

.step-card h3 {
  font-size: 1.15rem;
  margin: 10px 0 8px;
}

.step-card p {
  margin: 0;
  color: var(--cv-text-secondary);
}

.role-card {
  padding: 26px 24px 22px;
  height: 100%;
}

.role-card h3 {
  margin: 0 0 6px;
  font-size: 1.45rem;
}

.role-card .role-line {
  color: var(--cv-text-secondary);
  margin: 0 0 16px;
}

.role-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.role-card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  color: var(--cv-text);
  border-top: 1px solid var(--cv-divider);
}

.role-card li i {
  color: var(--cv-text-secondary);
  margin-top: 3px;
}

.spark {
  width: 100%;
  height: 72px;
  margin-top: 16px;
  color: var(--cv-chart);
}

.spark polyline {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.spark-label {
  margin: 0;
  color: var(--cv-text-tertiary);
  font-size: 0.8rem;
}

/* Security */

.security-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.fact {
  padding: 16px;
}

.fact h3 {
  font-size: 0.98rem;
  margin: 0 0 4px;
}

.fact p {
  margin: 0;
  color: var(--cv-text-secondary);
  font-size: 0.88rem;
}

/* FAQ */

.accordion {
  --bs-accordion-bg: transparent;
  --bs-accordion-border-color: transparent;
  --bs-accordion-btn-focus-box-shadow: var(--cv-focus);
  --bs-accordion-active-bg: var(--cv-muted);
  --bs-accordion-active-color: var(--cv-text);
  --bs-accordion-btn-color: var(--cv-text);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.accordion-item {
  background: var(--cv-card);
  border: 1px solid var(--cv-border) !important;
  border-radius: var(--cv-radius) !important;
  overflow: hidden;
}

.accordion-button {
  background: var(--cv-card);
  color: var(--cv-text);
  font-weight: 600;
  min-height: 56px;
  box-shadow: none;
  padding: 16px 18px;
}

.accordion-button:not(.collapsed) {
  background: var(--cv-muted);
  color: var(--cv-text);
  box-shadow: none;
}

.accordion-button::after {
  filter: none;
}

html[data-theme="dark"] .accordion-button::after {
  filter: invert(1);
}

.accordion-body {
  color: var(--cv-text-secondary);
  padding: 4px 18px 18px;
}

/* Contact */

.contact-panel {
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: 22px;
  box-shadow: var(--cv-shadow);
  padding: 28px 26px;
}

.form-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--cv-text);
}

.form-control,
.form-select {
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid var(--cv-border);
  background: var(--cv-bg);
  color: var(--cv-text);
  padding: 10px 14px;
}

textarea.form-control {
  min-height: 140px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--cv-primary);
  box-shadow: var(--cv-focus);
  background: var(--cv-card);
  color: var(--cv-text);
}

.form-text,
.form-status {
  color: var(--cv-text-tertiary);
}

.form-status {
  min-height: 1.4em;
  margin: 10px 0 0;
  font-size: 0.92rem;
}

.form-status.is-ok {
  color: var(--cv-healthy);
}

.form-status.is-error {
  color: var(--cv-sick);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--cv-border);
  padding: 36px 0 28px;
  color: var(--cv-text-secondary);
}

.site-footer a {
  color: var(--cv-text-secondary);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--cv-text);
  text-decoration: underline;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--cv-text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.footer-meta {
  margin: 18px 0 0;
  color: var(--cv-text-tertiary);
  font-size: 0.88rem;
}

/* Legal pages */

.legal-hero {
  padding: 48px 0 8px;
}

.legal-hero p {
  color: var(--cv-text-secondary);
  max-width: 40rem;
}

.prose {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 64px;
}

.prose section {
  padding: 22px 24px;
}

.prose h2 {
  font-size: 1.15rem;
  margin: 0 0 8px;
}

.prose p,
.prose li {
  color: var(--cv-text-secondary);
}

.prose p:last-child,
.prose ul:last-child {
  margin-bottom: 0;
}

.prose ul {
  margin: 8px 0 0;
  padding-left: 1.15rem;
}

.prose li + li {
  margin-top: 6px;
}

.prose strong {
  color: var(--cv-text);
  font-weight: 600;
}

/* Motion */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .feature-card:hover {
    transform: none;
  }
}

/* Responsive */

@media (max-width: 991.98px) {
  .nav-actions {
    padding: 8px 0 12px;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-actions .btn {
    width: 100%;
  }

  .proof,
  .steps,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }
}

@media (max-width: 575.98px) {
  .proof,
  .facts {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 28px;
  }

  .contact-panel,
  .prose section {
    padding: 18px 16px;
  }
}