:root {
 --color-bg:     #141B2D;   
  --color-bg-alt: #18314F;   
  --color-accent: #E8832A;   
  --color-gold:   #CAAC4B;   
  --color-text:   #F2EBDD;   
  --font-heading: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body:    'Inter', Arial, sans-serif;
  --space-s: 0.5rem;
  --space-m: 1rem;
  --space-l: 2rem;
  --space-xl: 4rem;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
  display: block;
}
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
}
h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-gold);
  line-height: 1.2;
}
h1 { font-size: 2.5rem; }
a  { color: var(--color-text); }
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 var(--space-m);
}
.site-header {
  position: sticky;        
  top: 0;
  z-index: 100;               
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-gold);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);  
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding-top: var(--space-s);
  padding-bottom: var(--space-s);
}
.logo img {
  height: 90px;
  width: auto;
  transition: transform 0.2s ease, filter 0.2s ease;
}
.logo:hover img {
  transform: scale(1.06);
  filter: brightness(1.15);
}
/* hamburger menu */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--color-gold);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}
.main-nav {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-height: 0;        
  overflow: hidden;     
  opacity: 0;
  padding: 0;
  transition: max-height 0.4s ease, opacity 0.4s ease, padding 0.4s ease;
}
.main-nav.open {
  max-height: 300px;    
  opacity: 1;
  padding: var(--space-m) 0;
}
.main-nav a {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  text-decoration: none;
  padding: var(--space-s) var(--space-m);
  transition: color 0.3s ease, text-shadow 0.3s ease;
}
.main-nav a:hover {
  color: var(--color-gold);
  text-shadow: 0 0 8px var(--color-gold), 0 0 16px var(--color-gold);
}
.main-nav a.active {
  color: var(--color-gold);
}
@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
  .main-nav,
  .main-nav.open {
    flex-direction: row;
    width: auto;
    max-height: none;
    overflow: visible;
    opacity: 1;
    padding: 0;
  }
  .main-nav a + a {
    border-left: 2px solid var(--color-gold);  
  }
}
.btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: bold;
  text-decoration: none;
  padding: var(--space-s) var(--space-l);
  border-radius: 6px;
  transition: background-color 0.3s ease, transform 0.15s ease;
}
.btn:hover {
  background: var(--color-gold);
  transform: translateY(-2px);   
}
.btn:active {
  transform: scale(0.96);        
}
.hero {
  position: relative;
  overflow: hidden;
}
.hero img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  will-change: transform;
  animation: slowZoom 10s ease-in-out infinite alternate;
}
.hero-text {
  position: relative;
  background: var(--color-bg-alt);
  padding: var(--space-l) var(--space-m);
}
.hero-text p {
  margin-bottom: var(--space-m);
}
@keyframes slowZoom {
  from { transform: scale(1.05); }
  to   { transform: scale(1.12); }
}
@media (min-width: 768px) {
  .hero img {
    height: 520px;
  }
  .hero-text {
    position: absolute;
    left: var(--space-l);
    bottom: var(--space-l);
    max-width: 480px;
    background: rgba(20, 27, 45, 0.9);
    border-left: 4px solid var(--color-gold);
  }
}
.site-footer {
  background: var(--color-bg-alt);
  border-top: 2px solid var(--color-gold);
  margin-top: 4rem;
  padding: var(--space-l) 0 var(--space-m);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
}
.copyright {
  text-align: center;
  font-size: 0.875rem;
  margin-top: var(--space-l);
}
@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: repeat(3, 1fr);
  }
}
.home-blocks {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  margin-top: var(--space-l);
}
.card {
  position: relative;
  display: flex;
  align-items: flex-end;      
  min-height: 260px;
  overflow: hidden;
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  text-decoration: none;
  transition: box-shadow 0.3s ease;
}
.card img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(20, 27, 45, 0.65);
  transition: background 0.3s ease;

}
.card-text {
  position: relative;
  z-index: 1;
  padding: var(--space-l);
}
.card-text p {
  margin-top: var(--space-s);
}
.card:hover {
  box-shadow: 0 0 16px var(--color-gold);
}
.card:hover::after {
  background: rgba(20, 27, 45, 0.4);
}
@media (min-width: 768px) {
  .home-blocks {
    grid-template-columns: repeat(3, 1fr);
  }
}


.model-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  margin: var(--space-m) 0 var(--space-l);
}
.model-nav a {
  padding: var(--space-s) var(--space-l);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  text-decoration: none;
}
.model-nav a:hover,
.model-nav a.active {
  background: var(--color-gold);
  color: var(--color-bg);
}
.product {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
}
.product-main {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 6px;
}
.thumbnails {
  display: flex;
  gap: var(--space-s);
  margin-top: var(--space-s);
}
.thumbnails img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
}
.thumbnails img:hover,
.thumbnails img.active {
  border-color: var(--color-gold);
}
.product-info {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  padding: var(--space-l);
}
.product-info .btn {
  display: inline-block;
  margin-top: var(--space-l);
  border: none;
  font-family: var(--font-body);
  font-size: 1rem;
  cursor: pointer;
}
.product-price {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-gold);
  margin: var(--space-s) 0 var(--space-m);
}
@media (min-width: 768px) {
  .product {
    grid-template-columns: 2fr 1fr;
    align-items: start;
  }
  .product-main {
    height: 480px;
  }
}


.class-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  margin-top: var(--space-l);
}
.class-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  padding: var(--space-l);
}
.class-meta {
  color: var(--color-gold);
}
.class-price {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0;
}
@media (min-width: 768px) {
  .class-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.signup {
  max-width: 500px;
  margin-top: var(--space-xl);
}
.signup h2 {
  margin-bottom: var(--space-m);
}
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-m);
}
.form-group label {
  margin-bottom: var(--space-s);
}
.form-input {
  padding: var(--space-s) var(--space-m);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-size: 1rem;
  font-family: var(--font-body);
}
.form-input:focus {
  outline: 2px solid var(--color-gold);
}
.signup .btn {
  border: none;
  font-size: 1rem;
  cursor: pointer;
}

.signup-form label {
  margin-top: var(--space-s);
}
.signup-form input,
.signup-form select {
  padding: var(--space-s) var(--space-m);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-size: 1rem;
  font-family: var(--font-body);
}
.signup-form input:focus,
.signup-form select:focus {
  outline: 2px solid var(--color-gold);
}
.signup-form .btn {
  margin-top: var(--space-m);
  border: none;
  font-size: 1rem;
  align-self: flex-start;
}

.summary {
  max-width: 500px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-gold);
  border-radius: 6px;
  padding: var(--space-l);
  margin: var(--space-l) 0;
}
.summary p:last-child {
  margin-bottom: 0;
}