/*
 * Goncu GIDA Stylesheet
 *
 * Bu dosya modern, temiz ve erişilebilir bir tek sayfa tasarımı için
 * gerekli tüm stilleri içerir. Renk paleti doğadan esinlenmiştir ve
 * okunabilirlik ile kontrast ön plandadır. Responsive tasarım sayesinde
 * mobil ve masaüstü cihazlarda mükemmel görünür.
 */

/* CSS Variables for color palette and sizing */
:root {
  --color-primary: #4CAF50; /* canlı yeşil */
  --color-secondary: #FF9800; /* turuncu */
  --color-accent: #FDD835; /* sarı */
  --color-dark: #222831; /* koyu tonlar */
  --color-light: #F8F8F8; /* açık gri */
  --color-white: #FFFFFF;
  --text-color: #333333;
  --max-width: 1200px;
  --radius: 0.75rem;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--color-light);
}

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

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  z-index: 1000;
  transition: top 0.3s;
}

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

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--color-white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  z-index: 999;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo .logo-highlight {
  color: var(--color-secondary);
}

.nav {
  position: relative;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-color);
  transition: transform var(--transition);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
}

.hamburger::before {
  top: -6px;
}

.hamburger::after {
  top: 6px;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-list li a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem;
  transition: color var(--transition);
}

.nav-list li a:hover,
.nav-list li a:focus {
  color: var(--color-primary);
}

/* Active navigation link */
.nav-list li a.active {
  color: var(--color-primary);
  font-weight: 600;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  text-align: center;
  background: url('assets/hero.jpg') center/cover no-repeat;
}

/* Dark overlay to improve text readability */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(34, 40, 49, 0.6);
  padding: 2rem;
  border-radius: var(--radius);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.highlight {
  color: var(--color-accent);
}

.hero-tagline {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1rem;
  margin-bottom: 2rem;
  line-height: 1.5;
}

/* Sections */
.section {
  padding: 4rem 0 3rem;
  background: var(--color-white);
}

.section:nth-of-type(even) {
  background: var(--color-light);
}

.section-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-dark);
  text-align: center;
}

.section-text {
  font-size: 1rem;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  line-height: 1.6;
  color: var(--text-color);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-secondary);
}

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-primary);
}

/* Products Section */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.product-card {
  background: var(--color-light);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-card:hover,
.product-card:focus-within {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.product-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.product-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.product-description {
  font-size: 0.95rem;
  color: var(--text-color);
  line-height: 1.4;
}

/* Why choose us list */
.why-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
  list-style: none;
}

.why-list li {
  background: var(--color-light);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition);
}

.why-list li:hover,
.why-list li:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.1);
}

.why-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
}

.why-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.why-text {
  font-size: 0.95rem;
  color: var(--text-color);
  line-height: 1.4;
}

/* Contact section */
.contact-container {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact .btn-secondary {
  margin-top: 1rem;
}

/* Footer */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.875rem;
}

/* Responsive navigation */
@media (max-width: 768px) {
  .nav-list {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    width: 200px;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius);
    padding: 0.5rem 0;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: visibility 0s linear var(--transition), opacity var(--transition), transform var(--transition);
  }

  .nav-list.show {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
  }

  .nav-list li {
    margin: 0;
    padding: 0.5rem 1rem;
  }

  .nav-list li a {
    display: block;
    padding: 0.5rem 1rem;
  }
}