:root {
  --bg-dark: #0f1421;
  --bg-light: #f7f8fb;
  --surface: #161d2b;
  --primary: #46c17d;
  --primary-dark: #33a566;
  --accent: #3fb8f3;
  --text-main: #1c2333;
  --text-muted: #57607b;
  --white: #ffffff;
  --gradient-hero: radial-gradient(circle at top left, #46c17d 0%, #141b2b 40%, #0f1421 100%);
  --gradient-card: linear-gradient(135deg, rgba(70, 193, 125, 0.08), rgba(63, 184, 243, 0.08));
  --shadow-soft: 0 30px 60px rgba(15, 20, 33, 0.25);
  --shadow-card: 0 18px 48px rgba(18, 22, 35, 0.14);
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
  /* Scrollbar gizleme */
  -ms-overflow-style: none;
  scrollbar-width: none;
}

html::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background-color: var(--bg-dark);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.5;
  /* Scrollbar gizleme - Tüm tarayıcılar için */
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* WebKit tarayıcılar için scrollbar gizleme */
body::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

a {
  text-decoration: none;
  color: inherit;
}

header {
  background: 
    linear-gradient(135deg, #0f1421 0%, #1a2332 25%, #0f1421 50%, #141b2b 75%, #0f1421 100%),
    radial-gradient(ellipse at top, rgba(70, 193, 125, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse at bottom right, rgba(63, 184, 243, 0.08) 0%, transparent 70%);
  position: relative;
  padding-top: 80px;
  padding-bottom: 100px;
  background-size: 100% 100%, 120% 120%, 100% 100%;
  background-attachment: fixed, scroll, scroll;
}

header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(70, 193, 125, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(63, 184, 243, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(70, 193, 125, 0.1) 0%, transparent 60%),
    radial-gradient(circle at 10% 80%, rgba(70, 193, 125, 0.05) 0%, transparent 40%);
  z-index: 0;
  animation: gradientShift 20s ease infinite;
  will-change: transform, opacity;
  pointer-events: none;
}

header::after {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(135deg, transparent 0%, rgba(70, 193, 125, 0.04) 25%, transparent 50%, rgba(63, 184, 243, 0.04) 75%, transparent 100%),
    linear-gradient(45deg, transparent 0%, rgba(63, 184, 243, 0.03) 50%, transparent 100%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 1px,
      rgba(255, 255, 255, 0.02) 1px,
      rgba(255, 255, 255, 0.02) 2px
    );
  z-index: 0;
  animation: gradientShift 25s ease infinite reverse;
  opacity: 0.6;
  will-change: transform, opacity;
  pointer-events: none;
}

@keyframes gradientShift {
  0%, 100% {
    opacity: 1;
    transform: scale(1) translate(0, 0);
  }
  33% {
    opacity: 0.85;
    transform: scale(1.03) translate(2%, -1%);
  }
  66% {
    opacity: 0.9;
    transform: scale(1.02) translate(-1%, 2%);
  }
}

.container {
  width: min(95%, var(--max-width));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: 
    linear-gradient(135deg, #000 0%, #298b4e 50%, #39a763 100%),
    radial-gradient(ellipse at top, rgba(70, 193, 125, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse at bottom right, rgba(63, 184, 243, 0.08) 0%, transparent 70%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
  width: 100%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}


.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--white);
}

.logo-symbol {
  width: 150px;
  border-radius: 14px;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo-symbol img {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  color: rgba(8, 10, 58, 0.78);
  font-size: 15px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 12px;
  padding: 14px 26px;
  font-weight: 600;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.btn-primary {
  background: var(--primary);
  color: var(--bg-dark);
  box-shadow: 0 20px 40px rgba(70, 193, 125, 0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-outline {
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  background: rgba(22, 29, 43, 0.3);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(22, 29, 43, 0.6);
}

.hero {
  display: flex;
  flex-direction: column;
  gap: 64px;
  padding: 60px 0 0;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  width: 100%;
}

.hero h1 {
  font-size: clamp(42px, 5vw, 68px);
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1.2;
  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.85) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.8);
  font-size: 18px;
  line-height: 1.7;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
  justify-content: center;
}

.hero-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(160px, 1fr));
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.hero-card {
  padding: 24px;
  background: rgba(22, 29, 43, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-card:hover {
  transform: translateY(-4px);
  border-color: rgba(70, 193, 125, 0.3);
  box-shadow: 0 12px 40px rgba(70, 193, 125, 0.15);
}

.hero-card:hover::before {
  opacity: 1;
}

.hero-card-icon {
  font-size: 32px;
  line-height: 1;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.hero-card-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.hero-card span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-card strong {
  font-size: 18px;
  line-height: 1.4;
  color: var(--white);
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(70, 193, 125, 0.2);
  color: #acf4c8;
  border: 1px solid rgba(70, 193, 125, 0.3);
  box-shadow: 0 4px 12px rgba(70, 193, 125, 0.15);
  width: fit-content;
}

main {
  background-color: var(--bg-light);
  color: var(--text-main);
  border-radius: 48px 48px 0 0;
  margin-top: -48px;
  position: relative;
  padding-bottom: 120px;
}

section {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: clamp(30px, 3.2vw, 46px);
  margin-bottom: 12px;
}

.section-header p {
  margin: 0 auto;
  max-width: 650px;
  font-size: 17px;
  color: var(--text-muted);
}

.feature-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.feature-card {
  border-radius: 26px;
  padding: 32px;
  background: var(--white);
  box-shadow: 0 16px 40px rgba(28, 35, 51, 0.08);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 26px;
  color: var(--primary);
  background: rgba(70, 193, 125, 0.12);
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
}

.modules {
  border-radius: 32px;
  background: var(--white);
  padding: 50px;
  display: grid;
  gap: 36px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  box-shadow: 0 26px 70px rgba(31, 41, 66, 0.12);
}

.module-card {
  border-radius: 24px;
  padding: 28px;
  background: var(--white);
  border: 1px solid rgba(63, 184, 243, 0.1);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.module-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(28, 35, 51, 0.12);
}

.module-card h3 {
  margin: 0;
  font-size: 22px;
  color: var(--text-main);
}

.module-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
}

.module-list h3 {
  margin-bottom: 18px;
  font-size: 22px;
}

.module-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.module-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--text-main);
}

.module-list li span {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: rgba(63, 184, 243, 0.12);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 14px;
}

.module-list p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 15px;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric strong {
  font-size: 34px;
  color: var(--primary-dark);
}

.metric span {
  color: var(--text-muted);
  font-size: 15px;
}

.benefits {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.benefit-card {
  padding: 28px;
  border-radius: 24px;
  background: var(--gradient-card);
  border: 1px solid rgba(63, 184, 243, 0.12);
}

.benefit-card h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.benefit-card p {
  margin: 0;
  color: var(--text-muted);
}

.showcase {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.showcase img {
  width: 100%;
  border-radius: 28px;
  box-shadow: 0 28px 80px rgba(22, 29, 43, 0.18);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.pill {
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  transition: all 0.2s ease;
}

.pill:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.testimonials {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.testimonial-card {
  background: var(--white);
  border-radius: 26px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: 0 20px 44px rgba(38, 46, 71, 0.1);
}

.testimonial-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.testimonial-author strong {
  color: var(--text-main);
}

.cta-section {
  border-radius: 32px;
  padding: 64px;
  background: linear-gradient(135deg, #1c7f53 0%, #46c17d 45%, #3fb8f3 100%);
  color: var(--white);
  display: grid;
  gap: 24px;
  text-align: center;
  box-shadow: 0 34px 90px rgba(31, 69, 57, 0.35);
}

.cta-section h2 {
  margin: 0;
  font-size: clamp(32px, 3.4vw, 44px);
}

footer {
  padding: 48px 0 60px;
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.65);
}

footer .footer-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

footer h4 {
  margin-top: 0;
  color: var(--white);
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 12px;
  font-size: 14px;
}

footer .footer-bottom {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 13px;
}

footer .footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: underline;
  transition: color 0.2s ease;
}

footer .footer-bottom a:hover {
  color: var(--white);
}

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

@media (max-width: 920px) {
  nav .container {
    flex-direction: column;
    gap: 18px;
    padding: 16px 0;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  header {
    padding-top: 120px;
  }

  .hero {
    text-align: center;
    gap: 48px;
  }

  .hero-content {
    align-items: center;
  }

  .hero p {
    margin: 0 auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-grid {
    justify-items: center;
  }

  .modules {
    padding: 36px;
  }

  .cta-section {
    padding: 48px 32px;
  }
}

@media (max-width: 600px) {
  header {
    padding-bottom: 70px;
  }

  section {
    padding: 72px 0;
  }

  .modules {
    padding: 28px;
  }

  .cta-section {
    padding: 40px 24px;
  }

  .btn {
    width: 100%;
  }

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