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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            background: #000;
            color: #fff;
            overflow-x: hidden;
        }

        .category-icon {
    font-size: 1.8rem;
    color: #fff;   /* beyaz ikon */
    margin-bottom: 10px;
}


        /* === Navbar yüksekliği ve güvenli alan === */
:root{
  --nav-h: 56px;
  --nav-h-safe: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
}

/* fixed header safe-area ile doğru boyda olsun */
.navbar{
  height: var(--nav-h-safe);
  padding-top: env(safe-area-inset-top, 0px);
}

/* içerikleri header kadar aşağı it */
body{
  padding-top: var(--nav-h-safe);
}

.categories-title {
    font-size: 2rem;
    font-weight: bold;
    margin-top: 0;       /* yukarıya yapışsın */
    margin-bottom: 5px;  /* altındaki boşluk çoksa azalt */
}

.categories-subtitle {
    margin-top: 0;       /* başlığa yapışmasın diye ayarla */
    margin-bottom: 25px; /* 40px çok uzak, daha sıkı görünür */
    color: #aaa;
    font-size: 1rem;
}



        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 1000;
            padding: 0 24px;
        }

        .navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

/* Logo (Brand) */
.brand {
  display: flex;
  align-items: center;
  justify-content: flex-start; /* sola sabitle */
  height: 100%;                /* navbar yüksekliği kadar */
  text-decoration: none;
}

.brand-img {
  height: 32px;   /* logonun sabit yüksekliği */
  width: auto;    /* orantıyı koru */
  object-fit: contain;
  display: block;
}
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .download-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: #fff;
            color: #000;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.2s;
        }

        .download-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 0 24px;
            background: radial-gradient(ellipse at center top, rgba(120, 40, 200, 0.3) 0%, transparent 50%);
            position: relative;
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin-bottom: 40px;
        }

        .hero-title {
            font-size: clamp(48px, 8vw, 96px);
            font-weight: 700;
            line-height: 1;
            margin-bottom: 24px;
            background: linear-gradient(to bottom, #fff 0%, rgba(255, 255, 255, 0.7) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
            margin-bottom: 40px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 12px 24px;
            background: #fff;
            color: #000;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 500;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
        }

        .btn-secondary {
            padding: 12px 24px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            font-size: 16px;
            font-weight: 500;
            text-decoration: none;
            display: inline-block;
            transition: all 0.2s;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
        }

        /* Code Window Preview */
        .code-preview {
            width: 100%;
            max-width: 900px;
            margin: 0 auto;
            background: #0d0d0d;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }

        .code-header {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.03);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .code-dots {
            display: flex;
            gap: 8px;
        }

        .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .dot-red { background: #ff5f57; }
        .dot-yellow { background: #ffbd2e; }
        .dot-green { background: #28ca42; }

        .code-content {
            padding: 24px;
            font-family: 'Monaco', 'Menlo', monospace;
            font-size: 14px;
            line-height: 1.6;
            color: #e0e0e0;
        }

        .code-line {
            margin: 4px 0;
        }

        .code-comment {
            color: #6b7280;
        }

        .code-keyword {
            color: #c792ea;
        }

        .code-string {
            color: #80cbc4;
        }

        .code-function {
            color: #82aaff;
        }

        /* Features Section */
        .features {
            padding: 80px 24px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 48px;
            margin-top: 60px;
        }

        .feature {
            text-align: center;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 12px;
        }

        .feature h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .feature p {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }

        /* Mobile Menu */
        .hamburger {
            display: none;
            width: 24px;
            height: 24px;
            flex-direction: column;
            justify-content: center;
            gap: 4px;
            background: transparent;
            border: none;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 1.5px;
            background: #fff;
            transition: all 0.3s;
        }

        /* === Account section: sola hizala + küçült (mobil) === */
@media (max-width: 768px) {

  /* Olası sınıf isimlerini ve düşe kalka son elemanı hedefliyoruz */
  .mobile-menu .account-card,
  .mobile-menu .user-card,
  .mobile-menu .account,
  .mobile-menu .user,
  .menu-drawer .account-card,
  .menu-drawer .user-card,
  .menu-drawer .account,
  .menu-drawer .user,
  .mobile-menu > div:last-child {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;   /* Sola hizala */
    text-align: left !important;
    gap: 4px !important;                  /* Satırlar arası boşluk */
    padding: 8px 12px !important;         /* İç boşluğu küçült */
    margin: 8px 0 0 0 !important;
    width: 100% !important;
    font-size: 13px !important;           /* Hepsini küçült */
    line-height: 1.25 !important;
  }

  /* İç elemanların kendi marjin/paddinglerini sıfırla */
  .mobile-menu .account-card > * ,
  .mobile-menu .user-card > * ,
  .menu-drawer .account-card > * ,
  .menu-drawer .user-card > * {
    margin: 0 !important;
    padding: 0 !important;
  }

  /* E-posta daha küçük/soluk olsun */
  .mobile-menu .account-card .email,
  .menu-drawer .account-card .email {
    font-size: 12px !important;
    opacity: .7 !important;
  }

  /* Linkler */
  .mobile-menu .account-card a,
  .menu-drawer .account-card a {
    color: rgba(255,255,255,.75) !important;
    text-decoration: none !important;
  }
  .mobile-menu .account-card a:hover,
  .menu-drawer .account-card a:hover {
    color: #fff !important;
  }
}

        /* === Mobile Menu Spacing Tweaks === */
@media (max-width: 768px) {
  /* Menünün kapladığı panel */
  .mobile-menu {
    position: fixed;
    top: 56px;              /* navbar yüksekliği ile aynı */
    left: 0; right: 0; bottom: 0;
    padding: 12px 20px 96px;/* üstü/yanları dar, altta kart için boşluk */
    background: #000;
    overflow-y: auto;       /* taşma olursa kaydır */
  }

  /* Liste ve aralıklar */
  .mobile-menu .menu-list,        /* <ul class="menu-list"> ise */
  .mobile-menu .nav-links {       /* <div class="nav-links"> ise */
    display: flex;
    flex-direction: column;
    gap: 10px;                    /* MADDELER ARASI ARALIĞI BURADAN KIS: 6–12px */
    margin: 0;
    padding: 0;
  }

  /* Tek tek linklerin iç boşluklarını küçült */
  .mobile-menu .nav-link,
  .mobile-menu a {
    display: block;
    margin: 0;                    /* dış boşlukları sıfırla */
    padding: 8px 12px;            /* iç boşluğu azalt */
    font-size: 18px;
    line-height: 1.15;            /* satır yüksekliğini sıkı tut */
    border-radius: 8px;
  }

  /* (li kullanıyorsan) li default boşluklarını kaldır */
  .mobile-menu li {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  /* Alt kullanıcı/kart bölümü menüye binmesin */
  .mobile-menu .account-card {
    margin-top: 14px;             /* listedan ayrılma payı */
    position: sticky;             /* kartı ekranda alta “yapıştır” */
    bottom: 12px;
  }
}
@media (max-width: 768px){
  /* Başlık bloğu nefes alsın */
  .hero{
    padding-top: 12px; /* nav yüksekliği zaten body ile verildi */
  }

  /* Buton grubu kendi genişliğiyle ortalansın */
  .hero-buttons{
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;          /* <-- ortalama bu */
    gap: 12px;
  }

  /* Butonların içeriği de ortada dursun */
  .btn-primary,
  .btn-secondary{
    width: 100%;
    justify-content: center; /* ikon + metin ortalanır */
    text-align: center;
  }
}


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

            .hamburger {
                display: flex;
            }

            .hero-buttons {
                flex-direction: column;
                width: 100%;
                max-width: 300px;
            }

            .btn-primary, .btn-secondary {
                width: 100%;
            }
        }


        .category-title {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 1.3rem;   /* başlık büyüklüğü */
    font-weight: bold;   /* kalın yazı */
    margin-bottom: 8px;  /* altındaki yazıya biraz boşluk bırakır */
}

.modal-body {
  padding: 25px;
  text-align: center;
  color: #fff;
}

.modal-category {
  margin-bottom: 20px;
}

.modal-category .category-icon {
  font-size: 2.2rem;
  color: #fff;
  margin-bottom: 10px;
}

.modal-category .category-title {
  font-size: 1.4rem;
  font-weight: bold;
}

.modal-category .category-desc {
  font-size: 0.9rem;
  color: #bbb;
  margin-top: 5px;
}

/* File Upload */
.file-upload {
  display: inline-block;
  background: #222;
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  margin: 15px 0;
  transition: background 0.3s ease;
}
.file-upload:hover { background: #333; }
.file-upload input { display: none; }
.file-upload span { font-size: 0.95rem; }
.file-upload i { margin-right: 6px; }

/* Start Button - White Flat */
.upload-btn {
  background: #fff;
  border: none;
  color: #000;
  padding: 12px 24px;
  margin: 15px 0;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  transition: background 0.3s ease;
}
.upload-btn:hover { background: #e6e6e6; }

/* Close Button - Grey */
.close-btn {
  background: #444;
  border: none;
  color: white;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 10px;
}
.close-btn:hover { background: #666; }

.image-window {
  display: inline-block;    /* genişlik resme göre ayarlanır */
  margin: 30px auto;
  border-radius: 10px;
  overflow: hidden;
  background: #111;
  box-shadow: 0 8px 20px rgba(0,0,0,0.6);
}

.image-window .code-header {
  background: #1e1e1e;
  padding: 6px 12px;
  display: flex;
  align-items: center;
}

.image-window .code-dots {
  display: flex;
  gap: 6px;
}

.image-window .code-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.image-window .code-content.no-padding {
  padding: 0;
  background: #000;
}

.preview-img {
  display: block;
  max-width: 100%; /* sayfa taşmasını engeller */
  height: auto;
}

.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.feature-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.feature-row.reverse {
  flex-direction: row-reverse;
}

.feature-text {
  flex: 1;
  color: #fff;
}

.feature-text h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
}

.feature-text p {
  font-size: 1rem;
  color: #aaa;
  line-height: 1.6;
}

.feature-media {
  flex: 1;
  text-align: center;
}

.feature-media img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}


.features-intro {
  text-align: center;
  max-width: 900px;
  margin: 160px auto 60px auto; /* üstten 80px boşluk ekledim */
  padding: 0 20px;
}

.features-title {
  font-size: 2rem;
  font-weight: bold;
  color: #fff;
  margin-bottom: 0px;
}

.features-subtitle {
  font-size: 1rem;
  color: #aaa;
  line-height: 1.6;
}
/* Mobile optimization */
@media (max-width: 768px) {
  .feature-row {
    flex-direction: column !important; /* üst üste gelsin */
    text-align: center; /* ortalasın */
  }

  .feature-text {
    margin-bottom: 20px; /* yazı ile resim arasına boşluk */
  }

  .feature-media img {
    max-width: 100%; /* taşma olmasın */
    height: auto;
  }
}

/* Steps Section */
.steps {
  padding: 80px 20px;
  text-align: center;
  background: #000; /* senin sitenin dark theme uyumu */
}

.steps-title {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 15px;
  color: #fff;
}

.steps-subtitle {
  font-size: 1rem;
  color: #bbb;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.step-card {
  background: #111;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.6);
  text-align: left;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.8);
}

.step-label {
  display: inline-block;
  background: #2ea4ff;
  color: #fff;
  font-size: 0.8rem;
  font-weight: bold;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 15px;
}

.step-card h3 {
  font-size: 1.2rem;
  font-weight: bold;
  color: #fff;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 0.95rem;
  color: #ccc;
  line-height: 1.5;
}

/* Responsive */
@media (max-width: 992px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .step-card {
    text-align: center;
  }
}

/* Features Section Images - Circular Mask */
.feature-media img {
  width: 300px;              /* istersen büyüklüğü değiştirebilirsin */
  height: 300px;             /* kare olacak ki daire mask düzgün olsun */
  border-radius: 50%;        /* daire şekli */
  object-fit: cover;         /* resmin orantılı kırpılmasını sağlar */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4); /* estetik için gölge */
  margin: 0 auto;            /* ortalamak için */
  display: block;
}

@media (max-width: 768px) {
  .feature-media img {
    width: 180px;
    height: 180px;
  }
}



/* FAQ Section */
.faq-section {
  margin: 100px auto;
  max-width: 1000px;
  padding: 0 20px;
}

.faq-title {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 30px;
  text-align: center;
  color: #fff;
}

.faq-card {
  display: block;
  background: rgba(30, 30, 40, 0.9);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  text-decoration: none;
  color: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}

.faq-header {
  margin-bottom: 10px;
}

.faq-question {
  font-size: 1.2rem;
  font-weight: bold;
  margin: 0;
  color: #e6e6e6;
}

.faq-answer {
  font-size: 1rem;
  line-height: 1.6;
  color: #bbb;
}

.faq-answer strong {
  color: #fff;
}


.footer {
  background: #000;
  color: #ccc;
  padding: 60px 10%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
}

.footer-column h4 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: #fff;
}

.footer-column ul {
  list-style: none;
  padding: 0;
}

.footer-column ul li {
  margin-bottom: 8px;
}

.footer-column ul li a {
  color: #aaa;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-column ul li a:hover {
  color: #fff;
}

.social-icons {
  margin-bottom: 15px;
}

.social-icons a {
  margin-right: 12px;
  font-size: 1.2rem;
  color: #aaa;
  transition: color 0.3s;
}

.social-icons a:hover {
  color: #fff;
}

.subscribe-form {
  display: flex;
  margin-top: 10px;
}

.subscribe-form input {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 4px 0 0 4px;
  outline: none;
}

.subscribe-form button {
  background: #005eff;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 0 4px 4px 0;
  cursor: pointer;
  transition: background 0.3s;
}

.subscribe-form button:hover {
  background: #0040c8;
}

.footer-bottom {
  border-top: 1px solid #222;
  margin-top: 40px;
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
  font-size: 0.85rem;
  color: #777;
}

.footer-legal {
  display: flex;
  gap: 15px;
  justify-content: center;
}

.footer-legal a {
  color: #777;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-legal a:hover {
  color: #fff;
}

.cta-section {
  text-align: center;
  margin: 60px 0 40px; /* Footer’dan önce boşluk */
}

.cta-title {
  font-size: 1.8rem; /* Orijinalden biraz küçük */
  font-weight: bold;
  color: #e5e5ff; /* Aynı ton: Instant Blockchain başlığındaki renk */
  line-height: 1.3;
}

/* Mobile Footer düzenleme */
@media (max-width: 768px) {
  .footer-top {
    display: flex;
    flex-wrap: wrap;            /* satır atlayabilir */
    justify-content: center;    /* ortala */
    text-align: center;
    gap: 30px;                  /* kutular arası boşluk */
  }

  .footer-column {
    flex: 1 1 100px;            /* min genişlik 100px olsun */
    max-width: 120px;           /* fazla büyümesin */
  }

  .footer-column h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
  }

  .footer-column ul li a {
    font-size: 1rem;
  }

  .footer-connect {
    width: 100%;
    text-align: center;
    margin-top: 30px;
  }
}
/* Mobile email input boyut düzenleme */
@media (max-width: 768px) {
  .subscribe-form {
    flex-direction: column;   /* buton alt alta gelsin */
    align-items: center;
    gap: 8px;
  }

  .subscribe-form input {
    width: 220px;             /* daralt */
    max-width: 80%;           /* ekran dışına taşmasın */
    font-size: 14px;
  }

  .subscribe-form button {
    width: 120px;
    font-size: 14px;
  }
}