/* ==========================================
   KMK Hygiene Website Styles
   Fresh & Eco-Friendly Design
   ========================================== */

/* CSS Variables */
:root {
  /* Colors - Fresh & Eco-Friendly Palette */
  --primary-green: #2ecc71;
  --primary-green-dark: #27ae60;
  --secondary-blue: #3498db;
  --secondary-blue-dark: #2980b9;
  --accent-teal: #1abc9c;
  --accent-teal-dark: #16a085;
  --neutral-white: #ffffff;
  --neutral-light: #f8f9fa;
  --neutral-gray: #6c757d;
  --neutral-dark: #2c3e50;
  --text-color: #2c3e50;
  --border-color: #e0e0e0;
  --shadow: rgba(0, 0, 0, 0.1);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Typography */
  --font-heading: 'Montserrat', 'Roboto', Arial, sans-serif;
  --font-body: 'Open Sans', 'Lato', Arial, sans-serif;

  /* Transitions */
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--neutral-white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--neutral-dark);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--secondary-blue);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-blue-dark);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header & Navigation */
header {
  background-color: var(--neutral-white);
  box-shadow: 0 2px 10px var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  box-shadow: 0 4px 20px var(--shadow);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

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

.logo img {
  height: 50px;
  width: auto;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-green);
  margin-left: var(--spacing-sm);
}

nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-menu li a {
  color: var(--text-color);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--spacing-sm);
  transition: var(--transition);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--primary-green);
  background-color: rgba(46, 204, 113, 0.1);
}

/* Mobile Menu Toggle */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: var(--spacing-sm);
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  border-radius: 3px;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-blue) 100%);
  color: var(--neutral-white);
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::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"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.1)"/></svg>');
  background-size: 300px;
  animation: float 20s infinite linear;
  opacity: 0.3;
}

@keyframes float {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-100px) rotate(360deg); }
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--neutral-white);
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: var(--spacing-sm);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--neutral-white);
  color: var(--primary-green);
}

.btn-primary:hover {
  background-color: var(--neutral-light);
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--neutral-white);
  border: 2px solid var(--neutral-white);
}

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

.btn-green {
  background-color: var(--primary-green);
  color: var(--neutral-white);
}

.btn-green:hover {
  background-color: var(--primary-green-dark);
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(46, 204, 113, 0.4);
}

/* Sections */
section {
  padding: var(--spacing-2xl) 0;
}

.section-light {
  background-color: var(--neutral-white);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  color: var(--primary-green);
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--neutral-gray);
  max-width: 700px;
  margin: 0 auto;
}

/* Service Cards */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.service-card {
  background-color: var(--neutral-white);
  border-radius: var(--spacing-md);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 15px var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, var(--primary-green), var(--accent-teal));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-white);
  font-size: 2rem;
}

.service-card h3 {
  color: var(--primary-green-dark);
  margin-bottom: var(--spacing-md);
}

.service-card p {
  color: var(--neutral-gray);
  margin-bottom: var(--spacing-lg);
}

/* Feature List */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-xl);
  position: relative;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-green);
  font-weight: bold;
  font-size: 1.2rem;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.about-text h3 {
  color: var(--primary-green);
  margin-bottom: var(--spacing-md);
}

.about-image {
  border-radius: var(--spacing-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.info-icon {
  width: 40px;
  height: 40px;
  background-color: rgba(46, 204, 113, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-green);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.info-item h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--primary-green-dark);
}

.info-item p {
  margin-bottom: 0;
  color: var(--neutral-gray);
}

/* Contact Form */
.contact-form {
  background-color: var(--neutral-white);
  padding: var(--spacing-xl);
  border-radius: var(--spacing-md);
  box-shadow: 0 4px 20px var(--shadow);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--border-color);
  border-radius: var(--spacing-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group small {
  display: block;
  margin-top: var(--spacing-xs);
  color: var(--neutral-gray);
  font-size: 0.875rem;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: #e74c3c;
}

.form-group.error small {
  color: #e74c3c;
}

.form-group.success input,
.form-group.success textarea,
.form-group.success select {
  border-color: var(--primary-green);
}

/* Footer */
footer {
  background-color: var(--neutral-dark);
  color: var(--neutral-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--primary-green);
  margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
  display: block;
}

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

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .about-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--neutral-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-menu.active {
    max-height: 500px;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

  .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-primary {
  color: var(--primary-green);
}

.text-secondary {
  color: var(--secondary-blue);
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }