/* ============================================
   Stratejik İş Danışmanlık - Main Stylesheet
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;800&family=Poppins:wght@300;400;500;600;700&display=swap');

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

:root {
  --primary: #1a2b4a;
  --accent: #7FFF00;
  --text-dark: #1a2b4a;
  --text-light: #5a6b7f;
  --bg-light: #f0f4f8;
  --bg-secondary: #e0e7f1;
  --white: #ffffff;
  --border: #e0e7f1;
}

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-light);
  margin-bottom: 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.8;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  padding: 0 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--text-dark);
}

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

.logo-text h3 {
  font-size: 1.2rem;
  margin: 0;
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--text-light);
  margin: 0;
}

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

nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--accent);
}

.btn-primary {
  background-color: var(--accent);
  color: var(--primary);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
  display: inline-block;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--primary);
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #2d4563 100%);
  color: var(--white);
  padding: 8rem 2rem;
  text-align: left;
}

.hero-content {
  max-width: 600px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-light {
  background-color: var(--accent);
  color: var(--primary);
  padding: 1rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-light:hover {
  opacity: 0.9;
}

.btn-outline {
  background-color: transparent;
  color: var(--white);
  padding: 1rem 2rem;
  border: 2px solid var(--white);
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
}

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

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: 5rem 2rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  margin-bottom: 1rem;
}

.section-title p {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background-color: var(--bg-light);
  padding: 2rem;
  border-radius: 0.75rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: var(--primary);
  color: var(--white);
  padding: 3rem 2rem 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

.social-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.social-links a:hover {
  background-color: var(--accent);
  color: var(--primary);
}

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

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--primary);
}

input, textarea, select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(127, 255, 0, 0.1);
}

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

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

@media (max-width: 768px) {
  .header-content {
    padding: 0 1rem;
  }

  nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--white);
    padding: 1rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
  }

  nav.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero {
    padding: 4rem 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  section {
    padding: 3rem 1rem;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

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

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

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }

.rounded {
  border-radius: 0.5rem;
}

.shadow {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}