/* Decidra web – brand colors from app (AppTheme) */
:root {
  /* App theme: darkBlue, brightTeal, brightPink, deepPurple, lightBlue */
  --color-dark-blue: #0d1421;
  --color-teal: #00d4aa;
  --color-teal-hover: #00b894;
  --color-pink: #ff4d9e;
  --color-purple: #6b2c91;
  --color-light-blue: #4fc3f7;

  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-text: var(--color-dark-blue);
  --color-text-muted: #5c6b7a;
  --color-primary: var(--color-teal);
  --color-primary-hover: var(--color-teal-hover);
  --color-secondary: var(--color-pink);
  --color-border: #e8ecf0;
  --color-accent: var(--color-light-blue);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 720px;
  --header-height: 56px;
  --logo-size: 36px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(13, 20, 33, 0.08);
  --transition: 0.2s ease;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-logo:hover {
  color: var(--color-primary);
}

.site-logo-img {
  width: var(--logo-size);
  height: var(--logo-size);
  object-fit: contain;
  border-radius: 20%;
}

@media (min-width: 640px) {
  :root {
    --logo-size: 40px;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.site-nav a {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.site-nav a:hover {
  color: var(--color-primary);
  background: rgba(0, 212, 170, 0.12);
}

/* Main content */
main {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

@media (min-width: 640px) {
  main {
    padding: var(--space-2xl) var(--space-lg);
  }
}

.page-title {
  margin: 0 0 var(--space-sm);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.page-meta {
  margin: 0 0 var(--space-xl);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.content-section {
  margin-bottom: var(--space-xl);
}

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

.content-section h2 {
  margin: 0 0 var(--space-md);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.content-section p,
.content-section ul {
  margin: 0 0 var(--space-md);
  color: var(--color-text);
  font-size: 1rem;
}

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

.content-section ul {
  padding-left: 1.5rem;
}

.content-section li {
  margin-bottom: var(--space-xs);
}

.content-section li:last-child {
  margin-bottom: 0;
}

main a {
  color: var(--color-primary);
  text-decoration: underline;
}

main a:hover {
  color: var(--color-teal-hover);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: var(--space-xl) var(--space-md);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.site-footer a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
}

.site-footer a:hover {
  color: var(--color-primary);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.site-footer__copy {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Marketing page */
.hero {
  text-align: center;
  padding: var(--space-2xl) 0;
}

@media (min-width: 640px) {
  .hero {
    padding: 3rem 0;
  }
}

.hero__title {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.hero__subtitle {
  margin: 0 0 var(--space-xl);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.cta-group,
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.cta-group {
  margin-bottom: var(--space-xl);
}

.store-qr__heading {
  margin: 0 0 var(--space-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.store-qr {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  justify-content: center;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.store-qr__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.store-qr__img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: var(--radius);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.store-qr__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.btn-group--left {
  justify-content: flex-start;
}

.page-actions {
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform 0.15s ease;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-dark-blue);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-dark-blue);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-teal);
}

.btn--secondary:hover {
  background: rgba(0, 212, 170, 0.08);
  border-color: var(--color-teal-hover);
}

.features {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

@media (min-width: 640px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.feature-card a {
  color: var(--color-primary);
  text-decoration: underline;
}

.feature-card h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
  font-weight: 700;
}

.feature-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Utility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}