:root {
  --primary: #191970;  /* Midnight blue */
  --secondary: #4169e1; /* Royal blue */
  --accent: #f0f4ff;
  --white: #fff;
  --gray: #e4e7ef;
}
body {
  margin: 0;
  font-family: 'Montserrat', Arial, sans-serif;
  background: var(--accent);
  color: var(--primary);
  min-height: 100vh;
  box-sizing: border-box;
}
/* HEADER BANNER */
.header {
  background: url('static/img/banner.jpg') no-repeat center center;
  background-size: cover;
  color: var(--white);
  text-align: center;
  padding: 90px 15px 70px 15px;
  position: relative;
}
.header::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(120deg,rgba(25,25,112,0.95),rgba(65,105,225,0.65) 80%);
  z-index: 1;
}
.header-content {
  position: relative;
  z-index: 2;
}
.header h1 {
  font-size: 3rem;
  letter-spacing: 2px;
  margin: 0;
  font-weight: 700;
}
.header p {
  font-size: 1.3rem;
  margin: 18px 0 0 0;
  font-weight: 400;
}

/* NAVIGATION */
.nav {
  background: var(--primary);
  position: relative;
  z-index: 10;
  box-shadow: 0 2px 5px rgba(25, 25, 112, 0.10); 
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5em;
  position: relative;
}
.nav .logo {
  font-size: 1.5em;
  color: var(--white);
  flex: 1;
  padding: 13px 0;
  font-weight: 700;
  letter-spacing: 1px;
}
.nav ul {
  list-style: none;
  display: flex;
  gap: 1.5em;
  margin: 0;
  padding: 0;
  transition: 0.4s;
}
.nav li a {
  color: var(--white);
  text-decoration: none;
  padding: 14px 10px;
  border-radius: 3px;
  font-size: 1em;
  display: block;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}
.nav li a:hover,
.nav li a.active {
  background: var(--secondary);
  color: var(--white);
}
/* DROPDOWN */
.dropdown {
  position: relative;
}
.dropdown-btn {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.dropdown-content {
  display: none;
  position: absolute;
  top: 40px;
  left: 0;
  min-width: 135px;
  background: var(--secondary);
  box-shadow: 0 2px 6px rgba(25,25,112,0.15);
  border-radius: 6px;
  z-index: 99;
}
.dropdown-content a {
  padding: 12px 16px;
  color: var(--white);
  display: block;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.dropdown-content a:last-child {
  border-bottom: none;
}
.dropdown-content a:hover {
  background: var(--primary);
}
/* Hamburger menu */
.nav .menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  cursor: pointer;
  width: 33px;
  height: 40px;
}
.nav .bar {
  height: 4px;
  width: 28px;
  background: var(--white);
  margin: 4px 0;
  border-radius: 2px;
  transition: 0.3s;
}

/* LAYOUT */
.main {
  display: flex;
  max-width: 1200px;
  margin: 50px auto;
  gap: 32px;
  box-sizing: border-box;
  padding: 0 18px;
}
.content {
  flex: 2;
  background: var(--white);
  border-radius: 10px;
  padding: 38px 32px 38px 32px;
  box-shadow: 0 2px 14px rgba(25,25,112,0.11);
  min-width: 0;
}
.sidebar {
  flex: 1;
  max-width: 340px;
  background: var(--gray);
  border-radius: 10px;
  padding: 30px 18px 18px 18px;
  box-shadow: 0 2px 12px rgba(65,105,225,0.08);
  min-width: 0;
  margin-top: 0;
}

/* GALLERY */
.gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 13px;
}
.gallery img {
  width: 100%;
  border-radius: 8px;
  transition: transform 0.18s, box-shadow 0.18s;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(25,25,112, 0.10);
}
.gallery img:hover {
  transform: scale(1.06);
  box-shadow: 0 6px 18px rgba(65,105,225,0.24);
}
.gallery-viewer {
  display: none;
  position: fixed;
  top:0; left:0; right:0; bottom:0;
  backdrop-filter: blur(2px);
  background: rgba(25,25,112,0.8);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.gallery-viewer img {
  max-width: 90vw;
  max-height: 70vh;
  border-radius: 13px;
  box-shadow: 0 2px 30px rgba(65,105,225,0.35);
  border: 7px solid var(--secondary);
}
.gallery-close {
  position: absolute;
  top: 36px;
  right: 36px;
  font-size: 2.5rem;
  color: var(--white);
  cursor: pointer;
  z-index: 210;
  background: none;
  border: none;
}

/* FOOTER */
.footer {
  background: var(--primary);
  color: var(--white);
  padding: 38px 0 26px 0;
  margin-top: 70px;
}
.footer .footer-columns {
  max-width: 1200px;
  margin: 0 auto 12px auto;
  display: flex;
  gap: 52px;
  padding: 0 18px;
}
.footer-column {
  flex: 1;
}
.footer-column h4 {
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--secondary);
}
.footer-column ul, 
.footer-column p {
  font-size: 0.98em;
  margin: 0;
  padding: 0;
  color: var(--white);
  line-height: 1.8;
}
.footer-bottom {
  text-align: center;
  color: #d5defc;
  font-size: 0.96rem;
  margin-top: 14px;
  letter-spacing: 1px;
}
/* Responsive */
@media (max-width: 1000px) {
  .main {
    flex-direction: column;
    gap: 18px;
  }
  .sidebar {
    max-width: 100%;
    margin-top: 18px;
  }
  .footer .footer-columns {
    flex-direction: column;
    gap: 24px;
  }
}
@media (max-width: 700px) {
  .header h1 { font-size: 2.0rem; }
  .header p { font-size: 1rem; }
  .main {
    padding: 0 5vw;
  }
  .content {
    padding: 22px 8vw;
  }
  .sidebar {
    padding: 17px 3vw;
  }
}
@media (max-width: 600px) {
  .nav ul {
    flex-direction: column;
    background: var(--primary);
    position: absolute;
    left: 0;
    right: 0;
    top: 57px;
    display: none;
    padding: 0;
    box-shadow: 0 6px 14px rgba(25,25,112,0.10);
  }
  .nav ul.open { display: flex; }
  .nav .menu-toggle { display: flex; }
  .footer .footer-columns {
    padding: 0 6vw;
  }
}
@media (max-width: 430px) {
  .header { padding: 46px 2vw 35px 2vw; }
  .main { padding: 0 2vw; }
  .footer .footer-columns { padding: 0 3vw; }
}