/* ==========================================================================
   Krishiv Solutions - Global Design System & Variables
   ========================================================================== */

:root {
  /* Colors */
  --primary-orange: #ff6b00;
  --primary-orange-hover: #e05e00;
  --primary-orange-glow: rgba(255, 107, 0, 0.15);
  
  --dark-bg: #0b0b0d;
  --dark-card: #121215;
  --dark-border: rgba(255, 255, 255, 0.08);
  
  --white: #ffffff;
  --light-bg: #f6f8fb;
  --light-card: #ffffff;
  --light-border: rgba(0, 0, 0, 0.06);
  
  --gray-light: #9ca3af;
  --gray-muted: #6b7280;
  --gray-dark: #1f2937;
  
  --success: #22c55e;
  
  /* Typography */
  --font-family: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', var(--font-family);
  
  /* Utilities */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.15);
  --shadow-dark: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --border-radius-card: 16px;
  --border-radius-btn: 8px;
  
  /* Layout */
  --container-width: 1280px;
  --header-height: 96px;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

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

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

body {
  font-family: var(--font-family);
  color: var(--gray-dark);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--dark-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--gray-dark);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-orange);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--dark-bg);
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

ul {
  list-style: none;
}

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

/* ==========================================================================
   Layout & Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-padding {
  padding: 6rem 0;
}

.bg-dark {
  background-color: var(--dark-bg);
  color: var(--white);
}

.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4, .bg-dark h5, .bg-dark h6 {
  color: var(--white);
}

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

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

.text-gradient {
  background: linear-gradient(135deg, var(--primary-orange), #ff914d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary-orange);
  margin-bottom: 1rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-family);
  font-weight: 600;
  border-radius: var(--border-radius-btn);
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  font-size: 1rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-primary {
  background-color: var(--primary-orange);
  color: var(--white);
  box-shadow: 0 4px 14px var(--primary-orange-glow);
}

.btn-primary:hover {
  background-color: var(--primary-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 0, 0.3);
}

.btn-secondary {
  background-color: var(--dark-card);
  color: var(--white);
  border: 1px solid var(--dark-border);
}

.btn-secondary:hover {
  background-color: var(--gray-dark);
  border-color: var(--gray-muted);
}

.btn-outline {
  background-color: transparent;
  color: var(--dark-bg);
  border: 1px solid var(--light-border);
}

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

.btn-outline-white {
  background-color: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--light-border);
  z-index: 1000;
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  height: 84px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
}

.logo-placeholder {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark-bg);
}

.logo-accent {
  color: var(--primary-orange);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-item {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-dark);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0;
  position: relative;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-orange);
  transition: var(--transition-smooth);
}

.nav-item:hover, .nav-item.active {
  color: var(--primary-orange);
}

.nav-item:hover::after, .nav-item.active::after {
  width: 100%;
}

/* Dropdown */
.nav-item-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--white);
  border-radius: var(--border-radius-card);
  box-shadow: var(--shadow-premium);
  min-width: 320px;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  border: 1px solid var(--light-border);
}

.nav-item-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--border-radius-btn);
  transition: var(--transition-smooth);
}

.dropdown-link:hover {
  background: var(--light-bg);
}

.dropdown-icon {
  color: var(--primary-orange);
  flex-shrink: 0;
}

.dropdown-text {
  display: flex;
  flex-direction: column;
}

.dropdown-title {
  font-weight: 600;
  color: var(--dark-bg);
  margin-bottom: 0.25rem;
}

.dropdown-desc {
  font-size: 0.8125rem;
  color: var(--gray-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hamburger Menu */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger-box {
  width: 24px;
  height: 24px;
  display: inline-block;
  position: relative;
}

.hamburger-inner {
  display: block;
  top: 50%;
  margin-top: -2px;
}

.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 24px;
  height: 2px;
  background-color: var(--dark-bg);
  position: absolute;
  transition: transform 0.15s ease;
}

.hamburger-inner::before, .hamburger-inner::after {
  content: "";
  display: block;
}

.hamburger-inner::before { top: -8px; }
.hamburger-inner::after { bottom: -8px; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: 6rem 0 2rem;
  border-top: 1px solid var(--dark-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 1.5rem;
}

.footer-logo .logo-text {
  color: var(--white);
  font-size: 1.75rem;
}

.footer-desc {
  color: var(--gray-light);
  margin-bottom: 2rem;
  max-width: 300px;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
  border: 1px solid var(--dark-border);
}

.social-icon:hover {
  background: var(--primary-orange);
  border-color: var(--primary-orange);
  transform: translateY(-3px);
}

.footer-heading {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--gray-light);
  font-size: 0.9375rem;
}

.footer-links a:hover {
  color: var(--primary-orange);
  padding-left: 5px;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  color: var(--gray-light);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.footer-contact-list a:hover {
  color: var(--primary-orange);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--dark-border);
  color: var(--gray-light);
  font-size: 0.875rem;
}

.legal-links {
  display: flex;
  gap: 1.5rem;
}

.legal-links a:hover {
  color: var(--white);
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-orange);
  color: var(--white);
  padding: 8px;
  z-index: 1001;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* ==========================================================================
   Media Queries
   ========================================================================== */

@media (max-width: 1024px) {
  .nav-list {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}