/* AgroStack landing page styles */

:root {
  --color-primary: #2E7D32;
  --color-primary-dark: #1B5E20;
  --color-primary-light: #66BB6A;
  --color-primary-soft: #E3F1E4;
  --color-accent: #8BC34A;

  --color-bg: #F6F9F6;
  --color-surface: #FFFFFF;
  --color-surface-alt: #EEF4EE;
  --color-text: #17241A;
  --color-text-muted: #4B5B4E;
  --color-border: #DCE6DC;

  --shadow-sm: 0 1px 2px rgba(15, 30, 18, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 30, 18, 0.08);
  --shadow-lg: 0 20px 48px rgba(15, 30, 18, 0.14);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --header-height: 72px;
  --transition: 180ms ease;

  --color-phone-bezel: #14181a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary: #66BB6A;
    --color-primary-dark: #43A047;
    --color-primary-light: #81C784;
    --color-primary-soft: rgba(102, 187, 106, 0.16);
    --color-accent: #AED581;

    --color-bg: #0f1512;
    --color-surface: #16201A;
    --color-surface-alt: #1C2921;
    --color-text: #EAF2EA;
    --color-text-muted: #A9BBAC;
    --color-border: #2A3A2E;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.45);

    --color-phone-bezel: #05070a;
  }
}

:root[data-theme="dark"] {
  --color-primary: #66BB6A;
  --color-primary-dark: #43A047;
  --color-primary-light: #81C784;
  --color-primary-soft: rgba(102, 187, 106, 0.16);
  --color-accent: #AED581;

  --color-bg: #0f1512;
  --color-surface: #16201A;
  --color-surface-alt: #1C2921;
  --color-text: #EAF2EA;
  --color-text-muted: #A9BBAC;
  --color-border: #2A3A2E;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.45);

  --color-phone-bezel: #05070a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
  font-weight: 800;
}

p {
  margin: 0 0 1em;
  color: var(--color-text-muted);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--transition);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 800;
  font-size: 1.1rem;
}

.brand-mark {
  width: 32px;
  height: 32px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--transition);
}

.main-nav a:hover {
  color: var(--color-primary);
}

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

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.85rem;
  transition: border-color var(--transition), background var(--transition);
}

.icon-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.icon-moon {
  display: none;
}

:root[data-theme="dark"] .icon-sun {
  display: none;
}

:root[data-theme="dark"] .icon-moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun {
    display: none;
  }
  :root:not([data-theme="light"]) .icon-moon {
    display: block;
  }
}

.hamburger {
  display: none;
}

.btn-portal-header {
  padding: 0 18px;
  height: 40px;
  font-size: 0.85rem;
  background: var(--color-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: none;
}

.btn-portal-header:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

@media (max-width: 640px) {
  .btn-portal-header {
    display: none;
  }
}

/* Hero */

.hero {
  padding: 64px 0 80px;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin: 0 0 12px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.98rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  display: inline-flex;
  line-height: 0;
  border-radius: 44px;
  background: var(--color-phone-bezel);
  padding: 14px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.phone-screenshot {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 600px;
  border-radius: 32px;
}

.phone-frame-sm {
  border-radius: 32px;
  padding: 10px;
}

.phone-frame-sm .phone-screenshot {
  max-height: 420px;
  border-radius: 22px;
}

/* Sections shared */

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 88px 16px;
}

.section-lead {
  max-width: 60ch;
  font-size: 1.05rem;
  margin-bottom: 40px;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.01em;
}

/* Features */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.feature-card--headline {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  background: linear-gradient(180deg, var(--color-primary-soft), var(--color-surface) 60%);
}

.feature-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-dark);
  background: var(--color-primary-soft);
  border: 1px solid var(--color-primary-light);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.95rem;
  margin: 0;
}

/* How it works */

.how-it-works {
  background: var(--color-surface-alt);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.step p {
  font-size: 0.93rem;
  margin: 0;
}

/* Screens */

.screens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 8px;
}

.screen-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
}

.screen-card figcaption h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.screen-card figcaption p {
  font-size: 0.93rem;
  margin: 0;
}

/* Offline band */

.offline-band {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
}

.offline-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}

.offline-band h2 {
  color: #fff;
}

.offline-band .offline-copy p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.02rem;
}

.offline-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.offline-points li {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-weight: 600;
}

/* Platforms */

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.platform-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: left;
}

.platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  margin-bottom: 18px;
}

.platform-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.platform-card p {
  font-size: 0.95rem;
  margin: 0;
}

.platform-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: underline;
}

.platform-link:hover {
  color: var(--color-primary-dark);
}

/* Footer */

.site-footer {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 16px 40px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
}

.footer-brand {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 10px;
  align-items: center;
}

.footer-brand .brand-name {
  font-weight: 800;
}

.footer-brand p {
  grid-column: 1 / -1;
  margin-top: 12px;
  font-size: 0.9rem;
  max-width: 40ch;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: start;
}

.footer-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.92rem;
}

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

.footer-copy {
  grid-column: 1 / -1;
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .phone-screenshot {
    max-height: 460px;
  }

  .feature-grid,
  .platform-grid,
  .screens-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .offline-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px 16px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    width: 100%;
    padding: 10px 0;
  }

  .hamburger {
    display: inline-flex;
  }

  .brand-name {
    font-size: 1rem;
  }

  .feature-grid,
  .platform-grid,
  .screens-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .section-inner {
    padding: 56px 16px;
  }

  .hero {
    padding: 40px 0 56px;
  }

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