/* Sustivo landing - sustainability theme, responsive (same colors) */

:root {
  --color-bg: #f8faf8;
  --color-surface: #ffffff;
  --color-text: #1a2e1a;
  --color-text-muted: #4a5d4a;
  --color-accent: #2d5a2d;
  --color-accent-hover: #3d7a3d;
  --color-border: #e0e8e0;
  --color-collection-bg: #e8f0e8;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --shadow: 0 2px 8px rgba(26, 46, 26, 0.06);
  --shadow-hover: 0 4px 16px rgba(26, 46, 26, 0.1);
  --shadow-nav: 0 1px 0 rgba(26, 46, 26, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

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

/* ----- Nav ----- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.98);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-nav);
}

.nav-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo:hover,
.nav-logo:focus {
  color: var(--color-accent-hover);
  outline: none;
}

.nav-logo:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  outline: none;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  background: linear-gradient(160deg, #e8f0e8 0%, #f0f6f0 45%, var(--color-bg) 100%);
  padding: var(--space-4xl) var(--space-lg);
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(100%, 800px);
  height: auto;
  max-height: 100%;
  object-fit: contain;
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 44rem;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.hero-tagline {
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
}

.hero-intro {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  line-height: 1.65;
}

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

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius);
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-surface);
  border-color: var(--color-accent);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-surface);
  outline: none;
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn-secondary:hover,
.btn-secondary:focus {
  background: rgba(45, 90, 45, 0.08);
  color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  outline: none;
}

/* ----- Sections ----- */
.section {
  padding: var(--space-4xl) var(--space-lg);
}

.section-inner {
  max-width: 72rem;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.625rem, 3.5vw, 2rem);
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.01em;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-2xl);
  max-width: 40rem;
  line-height: 1.6;
}

.section-collection {
  background: var(--color-collection-bg);
}

/* ----- Benefits ----- */
.benefits-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-xl);
}

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

@media (min-width: 900px) {
  .benefits-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
  }
}

.benefit-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.benefit-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}

.benefit-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
  background: var(--color-collection-bg);
  border: 1px solid var(--color-border);
  position: relative;
}

.benefit-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.75rem;
  height: 0.5rem;
  border: none;
  border-left: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: translate(-50%, -60%) rotate(-45deg);
}

.benefit-icon--calendar::after {
  width: 0.6rem;
  height: 0.6rem;
  border: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  border-radius: 50%;
  background: transparent;
  transform: translate(-50%, -50%);
}

.benefit-icon--qr::after {
  width: 0.5rem;
  height: 0.5rem;
  border: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: translate(-50%, -50%);
}

.benefit-icon--reports::after {
  width: 0.7rem;
  height: 0.5rem;
  border: none;
  border-top: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: translate(-50%, -50%);
}

.benefit-icon--link::after {
  width: 0.6rem;
  height: 0.15rem;
  border: none;
  border-top: 2px solid var(--color-accent);
  transform: translate(-50%, -50%);
}

.benefit-content {
  min-width: 0;
}

.benefit-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
}

.benefit-item p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.55;
}

/* ----- App grid ----- */
.app-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

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

@media (min-width: 900px) {
  .app-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
  }

  .app-grid--two {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ----- App card ----- */
.app-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 0;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.app-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.app-card-visual {
  height: 6rem;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  background: linear-gradient(135deg, var(--color-collection-bg) 0%, #e0e8e0 100%);
  border-bottom: 1px solid var(--color-border);
}

.app-card-visual--admin { background: linear-gradient(135deg, #e8f0e8 0%, #d8e4d8 100%); }
.app-card-visual--super { background: linear-gradient(135deg, #e0e8e0 0%, #d0dcd0 100%); }
.app-card-visual--calendar { background: linear-gradient(135deg, #e8f0e8 0%, #dce8dc 100%); }
.app-card-visual--scanner { background: linear-gradient(135deg, #e0ece0 0%, #d4e4d4 100%); }
.app-card-visual--maps { background: linear-gradient(135deg, #e4ece4 0%, #d8e0d8 100%); }
.app-card-visual--coordinator { background: linear-gradient(135deg, #2d5a2d 0%, #3d7a3d 100%); height: 7rem; }
.app-card-visual--driver { background: linear-gradient(135deg, #2d5a2d 0%, #3d7a3d 100%); height: 7rem; }

.app-card > .app-card-title,
.app-card > .app-card-desc,
.app-card > .app-card-features,
.app-card > .app-card-link {
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.app-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: var(--space-lg) 0 var(--space-sm);
  padding-top: 0;
}

.app-card-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
  line-height: 1.55;
  padding-bottom: 0;
  overflow-wrap: break-word;
}

.app-card-features {
  list-style: none;
  margin: 0 0 var(--space-lg);
  padding: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.app-card-features li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: var(--space-xs);
}

.app-card-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.35rem;
  height: 0.35rem;
  background: var(--color-accent);
  border-radius: 50%;
}

.app-card-link {
  display: block;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  padding: var(--space-md) var(--space-lg);
  margin: 0 var(--space-lg) var(--space-lg);
  margin-top: auto;
  border-radius: var(--radius);
  border: 2px solid var(--color-accent);
  transition: background 0.2s, color 0.2s;
}

.app-card-link:hover,
.app-card-link:focus {
  background: var(--color-accent);
  color: var(--color-surface);
  outline: none;
}

.app-card-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.app-card--large .app-card-desc {
  margin-bottom: var(--space-md);
}

/* ----- Footer ----- */
.footer {
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer-inner {
  max-width: 72rem;
  margin: 0 auto;
}

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

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
  opacity: 0.9;
}