/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;700&family=Open+Sans:wght@400;600&display=swap');

/* ─── CSS Variables ─── */
:root {
  --black: #000;
  --dark-gray: #1a1a1a;
  --light-gray: #f5f5f5;
  --primary: #f1c40f;
  --primary-dark: #d4ac0d;
  --text-light: #fff;
  --text-dark: #1a1a1a;
  --text-muted: #777;

  --font-body: 'Open Sans', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  --h1-size: 2.75rem;
  --h2-size: 2.25rem;
  --body-size: 1rem;
  --radius: 8px;
}

/* ─── Reset & Base Styles ─── */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: var(--font-body);
  background: var(--light-gray);
  color: var(--text-dark);
  line-height: 1.6;
}
a {
  text-decoration: none;
  transition: color .25s;
}
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─── Header / Navbar ─── */
header {
  background: var(--black);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.logo {
  height: 48px;
}
.nav-list {
  list-style: none;
  display: flex;
  gap: 30px;
  margin-left: 80px;
}
.nav-list a {
  color: var(--text-light);
  font-weight: 500;
  font-size: .95rem;
  position: relative;
}
.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .3s ease-out;
}
.nav-list a:hover::after {
  width: 100%;
}
.btn-promote {
  background: var(--primary);
  color: var(--text-dark);
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: background .3s, transform .2s;
}
.btn-promote:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* ─── Hero Section ─── */
.hero {
  padding-top: 100px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--text-light);
}
.hero-inner {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 40px;
}
.hero-text h1 {
  font-family: var(--font-heading);
  font-size: var(--h1-size);
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-text p {
  font-size: var(--body-size);
  max-width: 520px;
  color: var(--text-light);
}
.hero-image {
    margin-top: 10px;
  margin-left: 80px;
}
.hero-image img {
  width: 400px;
  height: 110%; 
  /*border: 4px solid rgba(255,255,255,0.6);  */
  /* border-radius: var(--radius); */
  border-radius: 0;
  transition: transform .3s ease;
}
.hero-image img:hover {
  transform: scale(1.05);
}

/* ─── Secondary Sections (About, Reference, Promote) ─── */
.secondary-section {
  background: var(--black);
  color: var(--primary);
  padding: 60px 0;
}
.secondary-section .section-title {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  color: var(--primary);
  text-align: center;
  margin-bottom: 20px;
}
.secondary-section p {
  color: var(--text-light);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 20px;
}

/* ─── Stats Cards ─── */
.stats {
  background: var(--black);
  padding: 50px 0;
}
.stats-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
}
.stat-card {
  background: var(--dark-gray);
  border-radius: var(--radius);
  text-align: center;
  padding: 30px 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: transform .3s, box-shadow .3s;
}
.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.stat-card h3 {
  color: var(--primary);
  font-size: 2.25rem;
  margin-bottom: 8px;
}
.stat-card p {
  color: var(--text-muted);
  font-size: .95rem;
}

/* ─── Videos Section ─── */
.videos {
  background: var(--black);
  padding: 60px 0;
}
.videos .section-title {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  color: var(--primary);
  text-align: center;
  margin-bottom: 32px;
}
.videos p {
  color: var(--primary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 20px;
}
.videos-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  padding: 0 20px;
}
.videos-grid iframe {
  width: 100%;
  height: 180px;
  border-radius: var(--radius);
  background: var(--black);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* ─── Reference Grid ─── */
.reference-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
}
.ref-card {
  background: var(--dark-gray);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: transform .3s, box-shadow .3s;
}
.ref-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.ref-card img {
  max-width: 70px;
  margin-bottom: 14px;
}
.ref-card h3 {
  color: var(--primary);
  margin-bottom: 14px;
  font-size: 1.3rem;
}

/* ─── Promote Form ─── */
.promote-section {
  background: var(--black);
  color: var(--primary);
}
.promote-section .section-title {
  color: var(--primary);
  text-align: center;
  margin-bottom: 20px;
}
.promote-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
  margin: 0 auto;
}
.promote-form label {
  color: var(--primary);
  font-weight: 600;
}
.promote-form input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--body-size);
  color: var(--text-light);
  background: var(--dark-gray);
}
.promote-form input::placeholder {
  color: var(--text-muted);
}
.form-error {
  color: #e74c3c;
  font-size: .9rem;
}
.promote-form .btn-promote {
  align-self: flex-start;
  background: var(--primary);
  color: var(--text-dark);
}

/* ─── Footer Section ─── */
footer {
  background: var(--primary);
  border-top: 2px solid rgba(0,0,0,0.1);
  box-shadow: 0 -2px 6px rgba(0,0,0,0.1);
  padding: 40px 20px 20px;
  color: var(--text-dark);
  position: relative;
}
.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 40px;
  align-items: start;
  text-align: center;
}
.ssl-icon-container {
  justify-self: center;
}
.footer-ssl-icon {
  width: 100px;
  height: auto;
  display: block;
  margin: 0 auto;
}
.social-links {
  display: flex;
  justify-content: center;
  gap: 30px;
}
.social-links img {
  width: 32px;
  filter: grayscale(100%);
  transition: filter .3s, transform .3s;
}
.social-links img:hover {
  filter: none;
  transform: scale(1.2);
}
.footer-links {
  list-style: none;
  padding: 0;
}
.footer-links li {
  margin: 10px 0;
}
.footer-links a {
  color: var(--black);
  font-weight: 600;
  transition: color .3s;
}
.footer-links a:hover {
  color: var(--dark-gray);
}
.newsletter-form {
  max-width: 350px;
  margin: 0 auto;
}
.newsletter-form label {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 8px;
  display: block;
}
.newsletter-inputs {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.newsletter-inputs input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--text-dark);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--body-size);
}
.newsletter-inputs button {
  background: var(--text-dark);
  color: var(--primary);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: transform .2s;
}
.newsletter-inputs button:hover {
  transform: translateY(-2px);
}
footer p {
  grid-column: 1 / -1;
  font-weight: 300;
  font-size: .8rem;
  margin-top: 20px;
  color: rgba(0,0,0,0.6);
}
.back-to-top {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: var(--black);
  color: var(--primary);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: background .3s, transform .2s;
}
.back-to-top:hover {
  background: var(--dark-gray);
  transform: translateY(-2px);
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .hero-inner {
    flex-direction: column-reverse;
    text-align: center;
  }
  .nav-list {
    display: none;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .social-links {
    justify-content: flex-start;
    gap: 20px;
  }
  .newsletter-inputs {
    flex-direction: column;
  }
  .newsletter-inputs button {
    width: 100%;
  }
}
/* ─── Toast Bildirimi ─── */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 12px 20px;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s ease, transform .4s ease;
  transform: translateY(20px);
  font-family: var(--font-body);
  font-size: var(--body-size);
  z-index: 9999;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
/* Kartlar için ortak stil */
.crypto-stack {
  position: absolute;
  width: 100px;   /* logo sayısına ve boşluğa göre ayarlanabilir */
  height: 360px;  /* 4 kart için yeterli yükseklik */
  pointer-events: none;
}
.crypto-stack.left {
  position: absolute;
  top: 50%;
  left: -120px;              /* metin bloğunun soluna taşır */
  transform: translateY(-50%);
  width: 120px;
  height: 360px;
}
/* SAĞ stack */
.crypto-stack.right {
  position: absolute;
  top: 50%;
  right: -120px;             /* resim bloğunun sağına taşır */
  transform: translateY(-50%);
  width: 120px;
  height: 360px;
}
.crypto-card {
  position: absolute;
  width: 60px;
  height: 60px;
}
/* SOL STACK’te çapraz dizilim */
.crypto-stack.left .crypto-card:nth-child(1) { top:   0;   left:   0; }
.crypto-stack.left .crypto-card:nth-child(2) { top:  95px; left:  20px; }
.crypto-stack.left .crypto-card:nth-child(3) { top: 190px; left:   0; }
.crypto-stack.left .crypto-card:nth-child(4) { top: 280px; left:  20px; }

/* SAĞ STACK’te çapraz dizilim */
.crypto-stack.right .crypto-card:nth-child(1) { top:   0;   left:   0; }
.crypto-stack.right .crypto-card:nth-child(2) { top:  95px; left:  20px; }
.crypto-stack.right .crypto-card:nth-child(3) { top: 190px; left:   0; }
.crypto-stack.right .crypto-card:nth-child(4) { top: 280px; left:  20px; }

.crypto-card .card-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  /* dönme animasyonu */
  animation: spin 6s linear infinite;
}
.crypto-card:nth-child(odd) {
  opacity: 1;
}
.crypto-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: 50% 100%;
  transform-style: preserve-3d;
  backface-visibility: visible;
  animation: spinY 3s linear infinite;
}

.hero-inner:hover .crypto-card {
  opacity: 1;
}
.hero-inner:hover .crypto-card {
  transform: 
    translateX(calc(-20px * var(--i))) 
    translateY(calc(20px * var(--i))) 
    rotate(calc(-5deg + 3deg * var(--i)))
    scale(1.05);
}
/* 360° Y-axis spin */
@keyframes spinY {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

/* Hover’da hızlanma isteğe bağlı */
.hero-inner:hover .crypto-card img {
  animation-duration: 6s;
}
/* Modal Overlay */
.modal {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.modal.show {
  opacity: 1;
  pointer-events: auto;
}
.modal-content {
  background: var(--light-gray);
  color: var(--text-dark);
  padding: 2rem;
  border-radius: var(--radius);
  max-width: 400px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.modal-content p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  line-height: 1.4;
}
.modal-content button {
  background: var(--primary);
  color: var(--black);
  padding: .6rem 1.2rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: background .3s ease;
}
.modal-content button:hover {
  background: var(--primary-dark);
}
.hidden { display: none; }
/* Verify modal içindeki ikon stili */
.modal-content p .verify-icon {
  display: inline-block;
  font-size: 2rem;           /* ikon boyutu */
  vertical-align: middle;
  margin-right: 0.5rem;
}
.verify-icon.success {
  color: #2ecc71;            /* parlak yeşil */
}
.verify-icon.failure {
  color: #e74c3c;            /* parlak kırmızı */
}
h3 a {
  color: inherit;           /* Başlıkla aynı renk */
  text-decoration: none;    /* Alt çizgi kaldır */
}
h3 a:hover {
  text-decoration: underline;
}
/* Reference altındaki Show More butonu */
/* Reference altındaki Show More butonu */
.show-more-container {
  /* mutlak ya da flex yerine block kullanmak en basit çözüm */
  display: block;
  width: 100%;            /* tam genişlik */
  text-align: center;     /* içindeki inline-block’u ortala */
  margin: 20px 0;         /* yukarı-aşağı boşluk */
}

.btn-show-more {
  display: inline-block;  /* text-align:center ile ortalanacak */
  background: var(--primary);
  color: var(--black);
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: background .3s, transform .2s;
}

.btn-show-more:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}
.promote-intro h3 {
  font-size: 1.3rem;
  margin-top: 1.5rem;
  color: var(--text-light);
  text-align: left;
}
.promote-intro p {
  margin: 0.5rem 0 1rem;
  color: var(--text-light);
  line-height: 1.5;
}
.promote-features {
  list-style: none;
  padding-left: 0;
  margin-bottom: 2rem;
}
.promote-features li {
  margin-bottom: 0.75rem;
  color: var(--text-light);
}
.promote-features li strong {
  color: var(--primary);
}