:root {
  --blue-bg: #e6f3ff;
  --card: #ffffff;
  --dark-blue: #04395e;
  --light-blue: #79b8f3;
  --accent: #4ac6f7;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(0,0,0,0.08);
  font-family: 'Inter', sans-serif;
}

body {
  margin: 0;
  background: var(--dark-blue);
  color: var(--dark-blue);
}

/* Navbar */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  z-index: 100;
}

.header-inner {
  max-width: 1100px;
  margin: auto;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
   
  width: 80px;
  height: 80px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-text h1 {
  margin: 0;
  font-size: 1.2rem;
}

.brand-text p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--light-blue);
}

.nav-links a {
  text-decoration: none;
  color: var(--dark-blue);
  margin-left: 15px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* Hero */
.hero {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 20px;
}

.hero-inner {
  max-width: 700px;
   background: rgb(50, 9, 88);
   color: white;
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  color: yellow;
  background: red;
  margin-top: 20px;
  transition: transform 0.2s ease;
}

.btn:hover {
  transform: scale(1.05);
  color: red;
  background: yellow;
}

/* Haftalar grid */
.weeks-page {
  text-align: center;
  padding: 50px 20px;
}

.weeks-grid {
  display: grid;
  gap: 15px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  max-width: 900px;
  margin: 30px auto;
}

.week-card {
  background: var(--card);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--dark-blue);
  font-weight: 600;
  transition: transform 0.25s ease, background 0.25s ease;
}

.week-card:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-4px);
}

/* Week detail */
.week-detail {
  max-width: 800px;
  margin: 60px auto;
  background: var(--card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.week-detail h2 {
  margin-top: 0;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 20px;
  color: red;
  font-size: 0.9rem;
  background: blue;
  backdrop-filter: blur(5px);
  height: 40px;
}
h1 :hover {
  font-size: 2.3em;
  margin-bottom: 10px;
  color: yellow;
  background-color: red;
}
h3 {
 font-size: medium;
 font-style: italic;
  color: red;

}
h4 {
 font-size: x-large;
 font-style: italic;
  color: yellow;

}
h5 {
 font-size: 0.8em;;
 font-style: italic;
  color: red;


}