/* ========================================
   FarmFirst Agriculture & Environmental Theme
   Unified Color Scheme & Design System
   ======================================== */

:root {
  /* === PRIMARY AGRICULTURE COLORS === */
  --ff-primary: #2f7a3d;           /* Deep Forest Green - Main brand color */
  --ff-primary-light: #3fbf6b;     /* Fresh Green - Hover states */
  --ff-primary-dark: #1f5a2c;      /* Dark Forest - Headers, emphasis */
  --ff-primary-50: #f0fdf4;        /* Lightest green - Backgrounds */
  --ff-primary-100: #dcfce7;        /* Very light green - Subtle backgrounds */
  --ff-primary-200: #bbf7d0;       /* Light green - Cards, borders */
  --ff-primary-300: #86efac;       /* Medium light green - Accents */
  --ff-primary-400: #4ade80;       /* Medium green - Secondary actions */
  --ff-primary-500: #22c55e;        /* Standard green - Success states */
  --ff-primary-600: #16a34a;       /* Medium dark green - Active states */
  --ff-primary-700: #15803d;       /* Dark green - Primary actions */
  --ff-primary-800: #166534;       /* Very dark green - Text emphasis */
  --ff-primary-900: #14532d;       /* Darkest green - Headers, titles */

  /* === SECONDARY NATURE COLORS === */
  --ff-earth: #8b5a2b;             /* Rich soil brown */
  --ff-earth-light: #a78b5a;       /* Light soil */
  --ff-earth-dark: #6b4423;        /* Dark soil */
  --ff-wheat: #f59e0b;             /* Golden wheat */
  --ff-wheat-light: #fbbf24;       /* Light wheat */
  --ff-wheat-dark: #d97706;        /* Dark wheat */
  --ff-sky: #0ea5e9;               /* Sky blue */
  --ff-sky-light: #38bdf8;         /* Light sky */
  --ff-sky-dark: #0284c7;          /* Dark sky */
  --ff-sunset: #f97316;            /* Sunset orange */
  --ff-sunset-light: #fb923c;      /* Light sunset */
  --ff-sunset-dark: #ea580c;       /* Dark sunset */

  /* === NEUTRAL COLORS === */
  --ff-white: #ffffff;
  --ff-gray-50: #f8fafc;
  --ff-gray-100: #f1f5f9;
  --ff-gray-200: #e2e8f0;
  --ff-gray-300: #cbd5e1;
  --ff-gray-400: #94a3b8;
  --ff-gray-500: #64748b;
  --ff-gray-600: #475569;
  --ff-gray-700: #334155;
  --ff-gray-800: #1e293b;
  --ff-gray-900: #0f172a;

  /* === SEMANTIC COLORS === */
  --ff-success: #22c55e;            /* Success green */
  --ff-success-light: #86efac;     /* Light success */
  --ff-success-dark: #16a34a;      /* Dark success */
  --ff-warning: #f59e0b;           /* Warning amber */
  --ff-warning-light: #fbbf24;     /* Light warning */
  --ff-warning-dark: #d97706;      /* Dark warning */
  --ff-error: #ef4444;             /* Error red */
  --ff-error-light: #fca5a5;       /* Light error */
  --ff-error-dark: #dc2626;        /* Dark error */
  --ff-info: #0ea5e9;              /* Info blue */
  --ff-info-light: #38bdf8;        /* Light info */
  --ff-info-dark: #0284c7;          /* Dark info */

  /* === SURFACE COLORS === */
  --ff-surface: #ffffff;
  --ff-surface-muted: #f8fafc;
  --ff-surface-subtle: #f1f5f9;
  --ff-surface-elevated: #ffffff;
  --ff-surface-overlay: rgba(15, 23, 42, 0.8);

  /* === BORDER COLORS === */
  --ff-border: #e2e8f0;
  --ff-border-muted: #f1f5f9;
  --ff-border-strong: #cbd5e1;
  --ff-border-focus: var(--ff-primary);

  /* === TEXT COLORS === */
  --ff-text: #0f172a;
  --ff-text-muted: #64748b;
  --ff-text-subtle: #94a3b8;
  --ff-text-inverse: #ffffff;

  /* === SPACING === */
  --ff-space-xs: 0.25rem;   /* 4px */
  --ff-space-sm: 0.5rem;    /* 8px */
  --ff-space-md: 1rem;      /* 16px */
  --ff-space-lg: 1.5rem;    /* 24px */
  --ff-space-xl: 2rem;      /* 32px */
  --ff-space-2xl: 3rem;     /* 48px */
  --ff-space-3xl: 4rem;     /* 64px */

  /* === BORDER RADIUS === */
  --ff-radius-sm: 0.375rem;  /* 6px */
  --ff-radius-md: 0.5rem;    /* 8px */
  --ff-radius-lg: 0.75rem;   /* 12px */
  --ff-radius-xl: 1rem;      /* 16px */
  --ff-radius-2xl: 1.5rem;   /* 24px */
  --ff-radius-full: 9999px;

  /* === SHADOWS === */
  --ff-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --ff-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --ff-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --ff-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --ff-shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

  /* === TYPOGRAPHY === */
  --ff-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ff-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* === TRANSITIONS === */
  --ff-transition-fast: 150ms ease-in-out;
  --ff-transition-normal: 300ms ease-in-out;
  --ff-transition-slow: 500ms ease-in-out;
}

/* ========================================
   BASE STYLES
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-font-sans);
  background: linear-gradient(135deg, var(--ff-primary-50) 0%, var(--ff-gray-50) 100%);
  background-attachment: fixed;
  color: var(--ff-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--ff-text);
  margin-bottom: var(--ff-space-md);
}

h1 { font-size: 2.5rem; color: var(--ff-primary-800); }
h2 { font-size: 2rem; color: var(--ff-primary-700); }
h3 { font-size: 1.5rem; color: var(--ff-primary-600); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--ff-space-md);
  color: var(--ff-text-muted);
}

a {
  color: var(--ff-primary);
  text-decoration: none;
  transition: color var(--ff-transition-fast);
}

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

/* ========================================
   BUTTONS
   ======================================== */

.ff-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ff-space-sm);
  padding: var(--ff-space-sm) var(--ff-space-lg);
  border: none;
  border-radius: var(--ff-radius-lg);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--ff-transition-fast);
  text-decoration: none;
  min-height: 44px; /* Touch-friendly */
}

.ff-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary Button */
.ff-btn-primary {
  background: linear-gradient(135deg, var(--ff-primary) 0%, var(--ff-primary-600) 100%);
  color: var(--ff-text-inverse);
  box-shadow: var(--ff-shadow-sm);
}

.ff-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--ff-primary-light) 0%, var(--ff-primary) 100%);
  box-shadow: var(--ff-shadow-md);
  transform: translateY(-1px);
}

/* Secondary Button */
.ff-btn-secondary {
  background: var(--ff-surface);
  color: var(--ff-primary);
  border: 2px solid var(--ff-primary);
}

.ff-btn-secondary:hover:not(:disabled) {
  background: var(--ff-primary);
  color: var(--ff-text-inverse);
}

/* Success Button */
.ff-btn-success {
  background: linear-gradient(135deg, var(--ff-success) 0%, var(--ff-success-dark) 100%);
  color: var(--ff-text-inverse);
}

.ff-btn-success:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--ff-success-light) 0%, var(--ff-success) 100%);
}

/* Warning Button */
.ff-btn-warning {
  background: linear-gradient(135deg, var(--ff-warning) 0%, var(--ff-warning-dark) 100%);
  color: var(--ff-text-inverse);
}

.ff-btn-warning:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--ff-warning-light) 0%, var(--ff-warning) 100%);
}

/* Error Button */
.ff-btn-error {
  background: linear-gradient(135deg, var(--ff-error) 0%, var(--ff-error-dark) 100%);
  color: var(--ff-text-inverse);
}

.ff-btn-error:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--ff-error-light) 0%, var(--ff-error) 100%);
}

/* Button Sizes */
.ff-btn-sm {
  padding: var(--ff-space-xs) var(--ff-space-md);
  font-size: 0.75rem;
  min-height: 32px;
}

.ff-btn-lg {
  padding: var(--ff-space-md) var(--ff-space-xl);
  font-size: 1rem;
  min-height: 52px;
}

/* ========================================
   FORMS
   ======================================== */

.ff-input,
.ff-select,
.ff-textarea {
  width: 100%;
  padding: var(--ff-space-sm) var(--ff-space-md);
  border: 2px solid var(--ff-border);
  border-radius: var(--ff-radius-lg);
  font-size: 1rem;
  background: var(--ff-surface);
  color: var(--ff-text);
  transition: all var(--ff-transition-fast);
  min-height: 44px; /* Touch-friendly */
}

.ff-input:focus,
.ff-select:focus,
.ff-textarea:focus {
  outline: none;
  border-color: var(--ff-primary);
  box-shadow: 0 0 0 3px rgba(47, 122, 61, 0.1);
}

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

.ff-label {
  display: block;
  font-weight: 600;
  color: var(--ff-text);
  margin-bottom: var(--ff-space-xs);
}

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

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

/* ========================================
   CARDS
   ======================================== */

.ff-card {
  background: var(--ff-surface);
  border: 1px solid var(--ff-border);
  border-radius: var(--ff-radius-xl);
  box-shadow: var(--ff-shadow-sm);
  overflow: hidden;
  transition: all var(--ff-transition-normal);
}

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

.ff-card-header {
  padding: var(--ff-space-lg);
  border-bottom: 1px solid var(--ff-border);
  background: var(--ff-surface-muted);
}

.ff-card-body {
  padding: var(--ff-space-lg);
}

.ff-card-footer {
  padding: var(--ff-space-lg);
  border-top: 1px solid var(--ff-border);
  background: var(--ff-surface-muted);
}

/* ========================================
   BADGES & STATUS
   ======================================== */

.ff-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--ff-space-xs);
  padding: var(--ff-space-xs) var(--ff-space-sm);
  border-radius: var(--ff-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ff-badge-primary {
  background: var(--ff-primary-100);
  color: var(--ff-primary-800);
}

.ff-badge-success {
  background: var(--ff-success-light);
  color: var(--ff-success-dark);
}

.ff-badge-warning {
  background: var(--ff-warning-light);
  color: var(--ff-warning-dark);
}

.ff-badge-error {
  background: var(--ff-error-light);
  color: var(--ff-error-dark);
}

.ff-badge-info {
  background: var(--ff-info-light);
  color: var(--ff-info-dark);
}

/* ========================================
   TABLES
   ======================================== */

.ff-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ff-surface);
  border-radius: var(--ff-radius-lg);
  overflow: hidden;
  box-shadow: var(--ff-shadow-sm);
}

.ff-table th {
  background: var(--ff-primary-50);
  color: var(--ff-primary-800);
  font-weight: 600;
  padding: var(--ff-space-md);
  text-align: left;
  border-bottom: 2px solid var(--ff-primary-200);
}

.ff-table td {
  padding: var(--ff-space-md);
  border-bottom: 1px solid var(--ff-border);
}

.ff-table tr:hover {
  background: var(--ff-primary-50);
}

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

/* ========================================
   NAVIGATION
   ======================================== */

.ff-nav {
  background: var(--ff-surface);
  border-bottom: 1px solid var(--ff-border);
  box-shadow: var(--ff-shadow-sm);
}

.ff-nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ff-primary);
  text-decoration: none;
}

.ff-nav-link {
  color: var(--ff-text-muted);
  font-weight: 500;
  padding: var(--ff-space-sm) var(--ff-space-md);
  border-radius: var(--ff-radius-md);
  transition: all var(--ff-transition-fast);
}

.ff-nav-link:hover,
.ff-nav-link.active {
  color: var(--ff-primary);
  background: var(--ff-primary-50);
}

/* ========================================
   HEADERS
   ======================================== */

.ff-header {
  background: linear-gradient(135deg, var(--ff-primary) 0%, var(--ff-primary-dark) 100%);
  color: var(--ff-text-inverse);
  padding: var(--ff-space-xl) 0;
  position: relative;
  overflow: hidden;
}

.ff-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.ff-header-content {
  position: relative;
  z-index: 1;
}

/* ========================================
   UTILITIES
   ======================================== */

/* Spacing */
.ff-m-0 { margin: 0; }
.ff-m-1 { margin: var(--ff-space-xs); }
.ff-m-2 { margin: var(--ff-space-sm); }
.ff-m-3 { margin: var(--ff-space-md); }
.ff-m-4 { margin: var(--ff-space-lg); }
.ff-m-5 { margin: var(--ff-space-xl); }

.ff-p-0 { padding: 0; }
.ff-p-1 { padding: var(--ff-space-xs); }
.ff-p-2 { padding: var(--ff-space-sm); }
.ff-p-3 { padding: var(--ff-space-md); }
.ff-p-4 { padding: var(--ff-space-lg); }
.ff-p-5 { padding: var(--ff-space-xl); }

/* Text */
.ff-text-center { text-align: center; }
.ff-text-left { text-align: left; }
.ff-text-right { text-align: right; }

.ff-text-primary { color: var(--ff-primary); }
.ff-text-muted { color: var(--ff-text-muted); }
.ff-text-success { color: var(--ff-success); }
.ff-text-warning { color: var(--ff-warning); }
.ff-text-error { color: var(--ff-error); }

/* Background */
.ff-bg-primary { background: var(--ff-primary); }
.ff-bg-surface { background: var(--ff-surface); }
.ff-bg-muted { background: var(--ff-surface-muted); }

/* Display */
.ff-hidden { display: none; }
.ff-block { display: block; }
.ff-inline { display: inline; }
.ff-inline-block { display: inline-block; }
.ff-flex { display: flex; }
.ff-grid { display: grid; }

/* Flexbox */
.ff-flex-col { flex-direction: column; }
.ff-flex-row { flex-direction: row; }
.ff-items-center { align-items: center; }
.ff-justify-center { justify-content: center; }
.ff-justify-between { justify-content: space-between; }

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
  .ff-form-row {
    grid-template-columns: 1fr;
  }
  
  .ff-btn {
    width: 100%;
    justify-content: center;
  }
  
  .ff-card {
    margin: var(--ff-space-sm);
  }
  
  .ff-table {
    font-size: 0.875rem;
  }
  
  .ff-table th,
  .ff-table td {
    padding: var(--ff-space-sm);
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .ff-card-body,
  .ff-card-header,
  .ff-card-footer {
    padding: var(--ff-space-md);
  }
}

/* ========================================
   AGRICULTURE-SPECIFIC COMPONENTS
   ======================================== */

.ff-weather-card {
  background: linear-gradient(135deg, var(--ff-sky) 0%, var(--ff-sky-dark) 100%);
  color: var(--ff-text-inverse);
}

.ff-crop-card {
  background: linear-gradient(135deg, var(--ff-primary) 0%, var(--ff-primary-dark) 100%);
  color: var(--ff-text-inverse);
}

.ff-soil-card {
  background: linear-gradient(135deg, var(--ff-earth) 0%, var(--ff-earth-dark) 100%);
  color: var(--ff-text-inverse);
}

.ff-harvest-card {
  background: linear-gradient(135deg, var(--ff-wheat) 0%, var(--ff-wheat-dark) 100%);
  color: var(--ff-text-inverse);
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes ff-fade-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ff-slide-in {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

@keyframes ff-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.ff-animate-fade-in {
  animation: ff-fade-in 0.5s ease-out;
}

.ff-animate-slide-in {
  animation: ff-slide-in 0.3s ease-out;
}

.ff-animate-pulse {
  animation: ff-pulse 2s infinite;
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  .ff-btn {
    display: none;
  }
  
  .ff-card {
    box-shadow: none;
    border: 1px solid var(--ff-border);
  }
  
  .ff-header {
    background: var(--ff-primary) !important;
    -webkit-print-color-adjust: exact;
  }
}