/* ============================================
   AgroGuardAI Design System v3
   Professional Website Stylesheet
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors */
  --color-primary-50: #e0f2e0;
  --color-primary-100: #c8e6c9;
  --color-primary-200: #a5d6a7;
  --color-primary-300: #81c784;
  --color-primary-400: #66bb6a;
  --color-primary-500: #4caf50; /* Forest Green */
  --color-primary-600: #43a047;
  --color-primary-700: #388e3c;
  --color-primary-800: #2e7d32;
  --color-primary-900: #1b5e20;

  --color-secondary-50: #e0f7fa;
  --color-secondary-100: #b2ebf2;
  --color-secondary-200: #80deea;
  --color-secondary-300: #4dd0e1;
  --color-secondary-400: #26c6da;
  --color-secondary-500: #00bcd4; /* Tech Blue */
  --color-secondary-600: #00acc1;
  --color-secondary-700: #0097a7;
  --color-secondary-800: #00838f;
  --color-secondary-900: #006064;

  --color-accent-50: #fff3e0;
  --color-accent-100: #ffe0b2;
  --color-accent-200: #ffcc80;
  --color-accent-300: #ffb74d;
  --color-accent-400: #ffa726;
  --color-accent-500: #ff9800; /* Wheat Gold */
  --color-accent-600: #fb8c00;
  --color-accent-700: #f57c00;
  --color-accent-800: #ef6c00;
  --color-accent-900: #e65100;

  --color-neutral-0: #ffffff;
  --color-neutral-50: #f8f9fa;
  --color-neutral-100: #e9ecef;
  --color-neutral-200: #dee2e6;
  --color-neutral-300: #ced4da;
  --color-neutral-400: #adb5bd;
  --color-neutral-500: #6c757d; /* Mid Gray */
  --color-neutral-600: #495057;
  --color-neutral-700: #343a40;
  --color-neutral-800: #212529;
  --color-neutral-900: #0a1a0a; /* Near Black */

  /* Semantic Colors */
  --color-background: var(--color-neutral-0);
  --color-background-alt: var(--color-neutral-50);
  --color-background-dark: var(--color-neutral-900);
  --color-text-primary: var(--color-neutral-800);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-muted: var(--color-neutral-500);
  --color-text-on-dark: var(--color-neutral-100);
  --color-text-on-primary: var(--color-neutral-0);
  --color-border: var(--color-neutral-200);
  --color-link: var(--color-primary-600);
  --color-link-hover: var(--color-primary-800);

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */
  --font-size-5xl: 3rem;     /* 48px */
  --font-size-6xl: 3.75rem;  /* 60px */
  --font-size-hero: clamp(2.5rem, 5vw, 4.5rem); /* Responsive Hero Title */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.2;
  --line-height-normal: 1.6;
  --line-height-loose: 1.8;

  /* Spacing (based on 8px grid) */
  --space-px: 1px;
  --space-0: 0;
  --space-0_5: 0.125rem; /* 2px */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-7: 1.75rem;  /* 28px */
  --space-8: 2rem;     /* 32px */
  --space-9: 2.25rem;  /* 36px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */
  --space-32: 8rem;    /* 128px */

  /* Border Radii */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-green: 0 4px 20px rgba(76, 175, 80, 0.3);

  /* Transitions */
  --transition-ease: all 0.2s ease-in-out;

  /* Layout */
  --max-width-content: 1280px;
  --header-height: 4.5rem; /* 72px */
}

/* --- Base Styles & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-link);
  text-decoration: none;
  transition: var(--transition-ease);
}

a:hover {
  color: var(--color-link-hover);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: var(--line-height-normal);
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.section--dark {
  background-color: var(--color-background-dark);
  color: var(--color-text-on-dark);
}

.section--gray {
  background-color: var(--color-background-alt);
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.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;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 {
  color: var(--color-text-on-dark);
}

h1 {
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.08;
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

.section--dark p {
  color: var(--color-text-on-dark);
  opacity: 0.85;
}

.section-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-600);
  margin-bottom: var(--space-2);
  display: block;
}

.section-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-top: var(--space-4);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  transition: var(--transition-ease);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  border: 2px solid transparent;
}

.btn--primary {
  background-color: var(--color-primary-500);
  color: var(--color-text-on-primary);
  border-color: var(--color-primary-500);
}

.btn--primary:hover {
  background-color: var(--color-primary-600);
  border-color: var(--color-primary-600);
  transform: translateY(-1px);
  box-shadow: var(--shadow-green);
}

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

.btn--secondary:hover {
  background-color: var(--color-neutral-50);
  border-color: var(--color-neutral-300);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.btn--outline:hover {
  background-color: var(--color-primary-500);
  color: var(--color-text-on-primary);
}

.btn--white {
  background-color: var(--color-neutral-0);
  color: var(--color-primary-500);
  border-color: var(--color-neutral-0);
}

.btn--white:hover {
  background-color: var(--color-neutral-100);
  color: var(--color-primary-600);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--color-neutral-0);
  border-color: rgba(255,255,255,0.5);
}

.btn--outline-white:hover {
  background-color: rgba(255,255,255,0.1);
  border-color: var(--color-neutral-0);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
}

.btn--full {
  width: 100%;
}

.btn-group {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition-ease);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.header__logo:hover {
  color: var(--color-primary-600);
}

.header__logo-img {
  width: 2rem; /* 32px */
  height: 2rem; /* 32px */
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.header__logo-icon {
  width: 2rem;
  height: 2rem;
  background-color: var(--color-primary-500);
  color: var(--color-text-on-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.05em;
  flex-shrink: 0;
}

.header__logo-text {
  font-weight: var(--font-weight-bold);
}

.header__nav {
  flex: 1;
  display: none; /* Hidden by default, shown on larger screens */
}

.header__nav-links {
  display: flex;
  gap: var(--space-6);
  justify-content: flex-end;
}

.header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: var(--transition-ease);
}

.header__nav-link:hover, .header__nav-link.active {
  color: var(--color-primary-600);
}

.header__actions {
  display: none; /* Hidden on mobile, shown on tablet+ */
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.header__mobile-toggle {
  display: flex; /* Shown by default on mobile, hidden on tablet+ */
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: var(--transition-ease);
  background-color: transparent;
}

.header__mobile-toggle:hover {
  background-color: var(--color-background-alt);
}

/* --- Mobile Menu --- */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-background);
  z-index: 999;
  padding: var(--space-4);
  flex-direction: column;
  gap: var(--space-4);
  overflow-y: auto;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu__link {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu__link:hover {
  color: var(--color-primary-600);
}

.mobile-menu__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--space-24));
  padding-bottom: var(--space-24);
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 70vh; /* Ensure hero section has a minimum height */
}

.hero--home {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.6) 100%), url('drone-hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-text-on-dark);
}

.hero--product {
  background-color: var(--color-background-dark);
  color: var(--color-text-on-dark);
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-text-on-dark);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(4px);
}

.hero__label-dot {
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--color-primary-400);
  border-radius: var(--radius-full);
  display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero__label-icon {
  height: 18px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
  margin-right: var(--space-2);
  object-fit: contain;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.08;
  margin-bottom: var(--space-4);
  color: var(--color-text-on-dark);
  letter-spacing: -0.03em;
}

.highlight {
  color: var(--color-primary-300);
  position: relative;
}

.highlight::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-300));
  border-radius: 2px;
  opacity: 0.4;
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--space-8);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-8);
}



/* --- ROI Banner --- */
.roi-banner {
  background-color: var(--color-neutral-900);
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(76, 175, 80, 0.3);
  border-bottom: 1px solid rgba(76, 175, 80, 0.3);
}

.roi-banner__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.roi-banner__item {
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark);
  opacity: 0.8;
  text-align: center;
}

.roi-banner__item strong {
  color: var(--color-primary-300);
  font-weight: var(--font-weight-bold);
}

.roi-banner__divider {
  width: 1px;
  height: 2rem;
  background-color: rgba(255,255,255,0.1);
  flex-shrink: 0;
}

/* --- Ecosystem Grid (Product Cards) --- */
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.ecosystem-card {
  background-color: var(--color-neutral-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-ease);
  display: flex;
  flex-direction: column;
}

.ecosystem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.ecosystem-card--intelligence { border-top: 4px solid var(--color-primary-500); }
.ecosystem-card--agromind { border-top: 4px solid var(--color-secondary-500); }
.ecosystem-card--robotics { border-top: 4px solid var(--color-accent-700); }

.ecosystem-card__image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background-color: var(--color-neutral-100);
}

.ecosystem-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease-in-out;
}

.ecosystem-card:hover .ecosystem-card__image img {
  transform: scale(1.05);
}

.ecosystem-card__content {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ecosystem-card__tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.ecosystem-card h3 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-xl);
}

.ecosystem-card p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.ecosystem-card__bullets {
  margin-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.ecosystem-card__bullets li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding-left: var(--space-4);
  position: relative;
}

.ecosystem-card__bullets li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary-500);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
}

.ecosystem-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-600);
  transition: var(--transition-ease);
  margin-top: auto; /* Pushes link to bottom */
}

.ecosystem-card__link:hover {
  gap: var(--space-2);
  color: var(--color-primary-800);
}

/* --- General Card Styles (for other sections) --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.card {
  background-color: var(--color-neutral-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: var(--transition-ease);
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

/* --- Docs Layout --- */
.docs-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-12);
  align-items: start;
}

.docs-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.docs-sidebar__section {
  margin-bottom: var(--space-8);
}

.docs-sidebar__title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.docs-sidebar__link {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: var(--space-1) 0;
  transition: var(--transition-ease);
}

.docs-sidebar__link:hover, .docs-sidebar__link.active {
  color: var(--color-primary-600);
}

/* --- Code Blocks --- */
.code-block {
  background-color: var(--color-neutral-800);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}

.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.code-block__lang {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  color: var(--color-secondary-300);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.code-block__copy {
  font-family: var(--font-family-base);
  font-size: var(--font-size-xs);
  color: var(--color-neutral-400);
  transition: var(--transition-ease);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.code-block__copy:hover {
  color: var(--color-neutral-0);
  background-color: rgba(255,255,255,0.1);
}

.code-block pre {
  padding: var(--space-4);
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark);
  line-height: var(--line-height-loose);
}

/* Code highlighting (basic) */
.code-block .comment { color: var(--color-neutral-500); }
.code-block .keyword { color: var(--color-secondary-300); }
.code-block .string { color: var(--color-primary-300); }
.code-block .number { color: var(--color-accent-300); }
.code-block .function { color: var(--color-secondary-100); }

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-16);
  margin-top: var(--space-12);
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-info-item__icon {
  width: 2.75rem; /* 44px */
  height: 2.75rem; /* 44px */
  background-color: var(--color-primary-50);
  color: var(--color-primary-600);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-item__label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.contact-info-item__value {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.contact-form {
  background-color: var(--color-background-alt);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-neutral-0);
  transition: var(--transition-ease);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* --- Footer --- */
.footer {
  background-color: var(--color-background-dark);
  color: var(--color-text-on-dark);
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer__brand-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark);
  opacity: 0.7;
  max-width: 300px;
}

.footer__heading {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-4);
}

.footer__link {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark);
  opacity: 0.7;
  margin-bottom: var(--space-2);
  transition: var(--transition-ease);
}

.footer__link:hover {
  opacity: 1;
  color: var(--color-primary-300);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-8);
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark);
  opacity: 0.6;
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social a {
  color: var(--color-text-on-dark);
  opacity: 0.7;
}

.footer__social a:hover {
  opacity: 1;
  color: var(--color-primary-300);
}

/* --- Responsive Adjustments --- */
@media (min-width: 768px) {
  .header__nav {
    display: flex;
  }

  .header__actions {
    display: flex;
  }

  .header__mobile-toggle {
    display: none;
  }

  .hero__content {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }



  .footer__bottom {
    flex-direction: row;
  }
}

@media (max-width: 767px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar {
    position: static;
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-4);
  }

  .docs-sidebar__section {
    margin-bottom: var(--space-4);
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* --- Animations --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Specific Page Styles (to be moved to individual files if they grow) --- */
/* AgroRobotics Hardware Cards */
.hw-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.hw-card {
  background-color: var(--color-neutral-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-ease);
  display: flex;
  flex-direction: column;
}

.hw-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hw-card__img {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-neutral-100);
  position: relative;
}

.hw-card__img svg {
  width: 60px;
  height: 60px;
  opacity: 0.6;
}

.hw-card__body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hw-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.hw-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.hw-card__specs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.hw-spec-tag {
  display: inline-block;
  background-color: var(--color-neutral-100);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
}

/* Pricing Table */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.pricing-card {
  background-color: var(--color-neutral-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: var(--transition-ease);
  display: flex;
  flex-direction: column;
  text-align: center;
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
}

.pricing-card--featured {
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-green);
  position: relative;
}

.pricing-card__badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary-500);
  color: var(--color-text-on-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card__name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}

.pricing-card__amount {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.pricing-card__period {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.pricing-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  flex-grow: 1;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  text-align: left;
}

.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.pricing-feature svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary-500);
}

.pricing-feature--disabled {
  opacity: 0.6;
  color: var(--color-text-muted);
}

.pricing-feature--disabled svg {
  color: var(--color-neutral-300);
}

.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.pricing-toggle__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  transition: var(--transition-ease);
}

.pricing-toggle__label.active {
  color: var(--color-text-primary);
}

.pricing-toggle__switch {
  width: 3rem; /* 48px */
  height: 1.625rem; /* 26px */
  background-color: var(--color-neutral-200);
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  transition: var(--transition-ease);
}

.pricing-toggle__switch.active {
  background-color: var(--color-primary-500);
}

.pricing-toggle__switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 1.25rem; /* 20px */
  height: 1.25rem; /* 20px */
  background-color: var(--color-neutral-0);
  border-radius: var(--radius-full);
  transition: transform 0.2s ease-in-out;
  box-shadow: var(--shadow-sm);
}

.pricing-toggle__switch.active::after {
  transform: translateX(1.375rem); /* 22px */
}

/* Spec Table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-8);
  font-size: var(--font-size-sm);
  text-align: left;
}

.spec-table th, .spec-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.spec-table th {
  background-color: var(--color-neutral-50);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.spec-table tbody tr:last-child td {
  border-bottom: none;
}

.spec-table tbody tr:nth-child(even) {
  background-color: var(--color-neutral-50);
}

/* Media Queries for responsiveness */
@media (max-width: 1024px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar {
    position: static;
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-4);
  }

  .docs-sidebar__section {
    margin-bottom: var(--space-4);
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-hero: clamp(2rem, 8vw, 3.5rem);
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --space-24: 4rem;
    --space-16: 3rem;
    --space-12: 2.5rem;
    --space-8: 2rem;
    --space-6: 1.5rem;
    --space-4: 1rem;
  }

  .header__nav {
    display: none;
  }

  .header__actions {
    display: none;
  }

  .header__mobile-toggle {
    display: flex;
  }

  .hero__content {
    text-align: center;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .hero__subtitle {
    font-size: 1rem;
    line-height: 1.8;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .hero__actions {
    justify-content: center;
  }



  .footer__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__bottom {
    flex-direction: column;
  }

  .footer__brand-desc {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
  }

  .header__actions {
    display: flex;
  }

  .header__mobile-toggle {
    display: none;
  }

  .hero__content {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }



  .footer__bottom {
    flex-direction: row;
  }
}