:root {
  --primary-color: #065f46;
  --secondary-color: #14b8a6;
  --accent-color: #f59e0b;
  --dark-bg: #0f1419;
  --card-bg: #1a2129;
  --light-text: #f9fafb;
  --gray-text: #d1d5db;
  --gradient-1: linear-gradient(135deg, #065f46 0%, #14b8a6 100%);
  --gradient-2: linear-gradient(135deg, #f59e0b 0%, #eab308 100%);
  --gradient-3: linear-gradient(135deg, #14b8a6 0%, #06b6d4 100%);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.35);
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
  font-family: "Inter", sans-serif;
  background-color: var(--dark-bg);
  color: var(--light-text);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Playfair Display", serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.age-notice {
  background: var(--gradient-1);
  color: var(--light-text);
  text-align: center;
  padding: 0.625rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.site-header {
  background: rgba(15, 20, 25, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid rgba(20, 184, 166, 0.2);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
  font-family: "Playfair Display", serif;
  font-size: 1.875rem;
  font-weight: 900;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-link {
  color: var(--gray-text) !important;
  font-weight: 500;
  margin: 0 0.75rem;
  transition: var(--transition);
  position: relative;
  font-size: 0.9375rem;
}

.nav-link:hover {
  color: var(--accent-color) !important;
  transform: translateY(-1px);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--gradient-2);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 80%;
}

.btn-login {
  background: transparent;
  border: 2px solid var(--secondary-color);
  border-radius: 8px;
  padding: 0.5rem 1.75rem !important;
  margin-left: 1rem !important;
  font-weight: 600;
}

.btn-login:hover {
  background: var(--secondary-color);
  color: var(--dark-bg) !important;
  box-shadow: 0 0 20px rgba(20, 184, 166, 0.4);
}

.btn-register {
  background: var(--gradient-2);
  border-radius: 8px;
  padding: 0.5rem 1.75rem !important;
  color: var(--dark-bg) !important;
  margin-left: 0.75rem !important;
  font-weight: 700;
  border: none;
}

.btn-register:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

.hero-section {
  position: relative;
  padding: 9rem 0 7rem;
  overflow: hidden;
  background: linear-gradient(180deg, var(--dark-bg) 0%, #0d1117 100%);
}

.hero-waves {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    ellipse at top right,
    rgba(20, 184, 166, 0.15) 0%,
    transparent 50%
  );
  pointer-events: none;
}

.hero-waves::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 300px;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,50 Q300,10 600,50 T1200,50 L1200,120 L0,120 Z" fill="rgba(6,95,70,0.1)"/></svg>');
  background-size: cover;
  opacity: 0.6;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-block;
  background: rgba(20, 184, 166, 0.15);
  color: var(--accent-color);
  padding: 0.625rem 1.25rem;
  border-radius: 30px;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
  border: 2px solid rgba(20, 184, 166, 0.3);
}

.hero-title {
  font-size: 5rem;
  font-weight: 900;
  margin-bottom: 1.75rem;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--gray-text);
  margin-bottom: 2.75rem;
  max-width: 540px;
  line-height: 1.75;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--gradient-2);
  color: var(--dark-bg);
  padding: 1.125rem 2.75rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  transition: var(--transition);
  border: none;
  display: inline-block;
  font-size: 1.0625rem;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 35px rgba(245, 158, 11, 0.5);
  color: var(--dark-bg);
}

.btn-secondary {
  background: transparent;
  color: var(--light-text);
  padding: 1.125rem 2.75rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  border: 2px solid var(--secondary-color);
  transition: var(--transition);
  display: inline-block;
  font-size: 1.0625rem;
}

.btn-secondary:hover {
  background: var(--secondary-color);
  color: var(--dark-bg);
  border-color: var(--secondary-color);
}

.hero-image {
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 25px 70px rgba(20, 184, 166, 0.3);
  filter: drop-shadow(0 0 40px rgba(245, 158, 11, 0.2));
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

.about-section {
  padding: 7rem 0;
  background: linear-gradient(
    to bottom,
    #0d1117 0%,
    rgba(6, 95, 70, 0.05) 50%,
    #0d1117 100%
  );
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4.5rem;
}

.section-tag {
  display: inline-block;
  color: var(--accent-color);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.section-title {
  font-size: 3.75rem;
  font-weight: 900;
  margin-bottom: 1.25rem;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1875rem;
  color: var(--gray-text);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.7;
}

.about-card {
  background: var(--card-bg);
  border: 2px solid rgba(20, 184, 166, 0.2);
  border-radius: 20px;
  padding: 3rem 2.25rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.about-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-2);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.about-card:hover::before {
  transform: scaleX(1);
}

.about-card:hover {
  transform: translateY(-12px);
  border-color: var(--accent-color);
  box-shadow: 0 25px 70px rgba(245, 158, 11, 0.25);
}

.about-card-featured {
  background: linear-gradient(
    135deg,
    rgba(6, 95, 70, 0.2) 0%,
    rgba(20, 184, 166, 0.1) 100%
  );
  border-color: var(--accent-color);
}

.featured-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--gradient-2);
  color: var(--dark-bg);
  padding: 0.5rem 1rem;
  border-radius: 25px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.about-icon {
  font-size: 3.5rem;
  margin-bottom: 1.75rem;
  filter: drop-shadow(0 4px 10px rgba(245, 158, 11, 0.3));
}

.about-title {
  font-size: 1.875rem;
  margin-bottom: 1rem;
  color: var(--light-text);
  font-weight: 700;
}

.about-description {
  color: var(--gray-text);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin: 0;
}

.how-section {
  padding: 7rem 0;
  background: var(--dark-bg);
}

.how-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  transition: var(--transition);
}

.how-number {
  width: 90px;
  height: 90px;
  margin: 0 auto 2.25rem;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.75rem;
  font-weight: 900;
  font-family: "Playfair Display", serif;
  box-shadow: 0 12px 35px rgba(20, 184, 166, 0.35);
  transition: var(--transition);
  position: relative;
}

.how-number::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 3px solid var(--accent-color);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.how-card:hover .how-number {
  transform: scale(1.15) rotate(10deg);
}

.how-card:hover .how-number::after {
  opacity: 1;
}

.how-title {
  font-size: 2.125rem;
  margin-bottom: 1.25rem;
  color: var(--light-text);
  font-weight: 700;
}

.how-description {
  color: var(--gray-text);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.features-section {
  padding: 7rem 0;
  background: linear-gradient(
    to bottom,
    var(--dark-bg) 0%,
    rgba(20, 184, 166, 0.05) 100%
  );
}

.features-image {
  position: relative;
}

.features-image img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
}

.features-text {
  color: var(--gray-text);
  font-size: 1.1875rem;
  margin-bottom: 1.75rem;
  line-height: 1.8;
}

.features-list {
  list-style: none;
  padding: 0;
  margin-top: 2.5rem;
}

.features-list li {
  color: var(--gray-text);
  padding: 1rem 0;
  padding-left: 2.5rem;
  position: relative;
  font-size: 1.125rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(20, 184, 166, 0.1);
}

.features-list li:last-child {
  border-bottom: none;
}

.features-list li::before {
  content: "▶";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-size: 1rem;
}

.contact-section {
  padding: 7rem 0;
  background: var(--dark-bg);
}

.contact-card {
  background: var(--card-bg);
  border: 2px solid rgba(20, 184, 166, 0.2);
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--accent-color);
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(245, 158, 11, 0.2);
}

.contact-title {
  color: var(--accent-color);
  font-size: 1.375rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
  font-family: "Playfair Display", serif;
}

.contact-info {
  color: var(--gray-text);
  font-size: 1.125rem;
  margin: 0;
  font-weight: 500;
}

.site-footer {
  background: rgba(15, 20, 25, 0.98);
  border-top: 2px solid rgba(20, 184, 166, 0.2);
  padding: 4.5rem 0 2.5rem;
  margin-top: 5rem;
}

.footer-logo {
  font-family: "Playfair Display", serif;
  font-size: 2.125rem;
  font-weight: 900;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.75rem;
}

.footer-heading {
  color: var(--light-text);
  font-size: 1.375rem;
  margin-bottom: 1.75rem;
  font-weight: 700;
  font-family: "Playfair Display", serif;
}

.footer-heading-blue {
  color: var(--secondary-color);
}

.footer-heading-green {
  color: var(--accent-color);
}

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

.footer-links li {
  margin-bottom: 0.875rem;
}

.footer-links a {
  color: var(--gray-text);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: 8px;
}

.footer-img {
  max-width: 150px;
  height: auto;
  opacity: 0.75;
  transition: var(--transition);
}

.footer-img:hover {
  opacity: 1;
  transform: scale(1.08);
}

.footer-img-invert {
  filter: invert(1);
}

.footer-bottom {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 2px solid rgba(20, 184, 166, 0.2);
  color: var(--gray-text);
  font-size: 0.9375rem;
}

.site-footer p {
  color: var(--gray-text);
  margin-bottom: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.75;
}

@media (max-width: 991px) {
  .hero-title {
    font-size: 3.5rem;
  }

  .section-title {
    font-size: 2.75rem;
  }

  .hero-section {
    padding: 5rem 0 4rem;
  }
}

@media (max-width: 767px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2.25rem;
  }

  .hero-description {
    font-size: 1.0625rem;
  }

  .about-card {
    margin-bottom: 1.5rem;
  }
}