:root {
  --primary: #81bdff;
  --primary-dark: #003167;
  --dark: #1C2A47;
  --light: #f5f7fa;
  --white: #ffffff;
  --gray: #6b7280;
  --text: #1C2A47;
  --radius: 30px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.2);
--shadow-mid: 0 4px 12px rgba(0, 0, 0, 0.4);
--shadow-deep: 0 10px 30px rgba(0, 0, 0, 0.7);

}

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

body {
 font-family: 'Firefly Sans', sans-serif;
  background-color: var(--light);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius);
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* Header */
header {
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo{
    border-radius: 600px;
}


.logo img{
  height: 54px;
  border-radius: 600px;
  color: var(--primary);
  letter-spacing: -0.5px;
}

nav a {
  margin-left: 1.5rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  transition: all 0.2s ease;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  background: transparent;
}

.topbar-inner {
  background: rgba(255, 255, 255, 0.3); 
  backdrop-filter: blur(10px); 
  padding: 1rem 1rem;
  border-radius: 50px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1100px;
}

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

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: black;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.hero-image{
  margin-left: 150px;
  width: 400px;
}

.login-top-btn {
  padding: 0.6rem 1.2rem;
  background: var(--primary);
  color: white;
  font-weight: 600;
  border-radius: 50px;
  font-size: 0.95rem;
  transition: background 0.3s ease;
}

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

.hero-section {
  color: white;
  padding: 12rem 0 10rem;
  margin-top: -150px;
  z-index: -1;
  position: relative;
}


.hero-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  align-items: center;
  gap: 3rem;
}

.hero-text h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-text p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #e5ecf4;
  max-width: 600px;
}

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

.btn {
  padding: 0.9rem 1.7rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
  box-shadow: var(--shadow-soft);
  transition: box-shadow 0.3s ease;
}


.btn:hover {
  box-shadow: var(--shadow-mid);
}

.primary {
  background: var(--white);
  color: var(--primary-dark);
  box-shadow: var(--shadow);
}

.primary:hover {
  background: #eef5fd;
}

.secondary {
  border: 2px solid white;
  color: white;
}

.secondary:hover {
  background-color: rgba(255,255,255,0.1);
}

.feature-card {
  box-shadow: var(--shadow-soft);
  
  border-width: 3px;
    border-style: solid;
    border-color: #003d99;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-mid);
}

.features-section {
  padding: 3rem 0;
  background-color: var(--light);
}

.features-section h2 {
  text-align: center;
  font-size: 2rem;
  margin-top: 2rem;
  margin-bottom: 2rem;
  color: var(--dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

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

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
  color: var(--primary);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--gray);
}

.gallery-section {
  padding: 5rem 0;
  background-color: #eaf0f8;
}

.gallery-section h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}

.gallery {
  height: 560px;
  display: flex;
  overflow-x: auto;
  gap: 1rem;
  padding: 1rem 0;
  scroll-snap-type: x mandatory;
}

.gallery img {
  margin-top: 20px;
  height: 480px;
  border-radius: 36px;
  object-fit: cover;
  flex-shrink: 0;
  scroll-snap-align: center;
  box-shadow: var(--shadow-mid);
  transition: transform 0.2s ease;
}

.gallery img:hover {
  transform: scale(1.04);
    box-shadow: var(--shadow-deep);

}

.faq-section {
  padding: 5rem 0;
  background: var(--white);
}

.faq-section h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}

.faq-list {
  max-width: 800px;
  margin: auto;
}

.faq-list details {
  margin-bottom: 1rem;
  background: var(--light);
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid #d9e1ed;
    box-shadow: var(--shadow-soft);
}

.faq-list summary {
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
}

.faq-list p {
  margin-top: 0.5rem;
  color: var(--gray);
}

footer {
  background: #003167;
  color: white;
  padding: 3rem 0 1.5rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 1rem;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 700;
}

.footer-links a {
  margin-left: 1rem;
  font-size: 0.95rem;
  color: #cfd8e8;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: #bbb;
}

@media (max-width: 768px) {
  .hero-text h1 {
    font-size: 2.3rem;
  }

  .hero-text p {
    font-size: 1.05rem;
  }

  .footer-top {
    flex-direction: column;
    text-align: center;
  }

  nav {
    display: none; /* mobilde istenirse açılır menü yapılabilir */
  }
}
.login-btn {
  margin-left: 1.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--primary);
  color: white;
  border-radius: 15px;
  font-weight: 600;
  transition: background 0.3s ease;
}

.login-btn:hover {
  background-color: var(--primary-dark);
}
.login-box {
  box-shadow: var(--shadow-deep);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text);
  border-radius: 2px;
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 90px;
  right: 20px;
  background: white;
  padding: 1rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-mid);
  flex-direction: column;
  gap: 1rem;
  z-index: 999;
}

.mobile-nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

body.dark-mode .features-section,
body.dark-mode .gallery-section,
body.dark-mode .faq-section {
  background-color: #121a2b;
}

body.dark-mode .feature-card,
body.dark-mode .faq-list details {
  background-color: #1f2a3b;
  box-shadow: var(--shadow-soft);
}

body.dark-mode .feature-card p,
body.dark-mode .faq-list p {
  color: #cbd5e1;
}

body.dark-mode .gallery-section h2,
body.dark-mode .features-section h2,
body.dark-mode .faq-section h2,
body.dark-mode .feature-card h3 {
  color: #e5eaf2;
}

body.dark-mode .gallery {
  background-color: #1a2335;
}

body.dark-mode footer {
  background: #0f172a;
  color: #e5eaf2;
}

body.dark-mode .footer-links a {
  color: #c3d2e4;
}

body.dark-mode .footer-links a:hover {
  color: var(--primary);
}
.theme-toggle {
  background: var(--light);
  border: none;
  font-size: 1.2rem;
  padding: 0.8rem 1rem;
  border-radius: 40px;
  cursor: pointer;
  margin-left: auto;
  margin-right: 1rem;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background-color: var(--primary);
  color: white;
  transform: scale(1.05) rotate(30deg);
}

body.dark-mode .theme-toggle {
  background: #1e2b40;
  color: #e0e7ef;
}

.topbar.shrink .topbar-inner {
  border-radius: 40px;
  box-shadow: var(--shadow-deep);
  transition: all 0.3s ease;
}

.topbar-inner {
  transition: all 0.3s ease;
}
.store-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.store-btn img {
  height: 40px;
  width: auto; /* EKLENDİ */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-radius: 0;
  box-shadow: var(--shadow-soft);
}


.store-btn img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-mid);
}

body.dark-mode .store-btn img {
  filter: brightness(0.9) contrast(1.1);
}