:root {
  --primary: #8B5E3C;
  --primary-dark: #6A3F3A;
  --accent: #D4A574;
  --bg: #E5D3B7;
  --text: #333;
  --light: #fff;
  --shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
  --radius: 16px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/*navbar*/
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: transparent;
  backdrop-filter: blur(10px);
  padding: 1.2rem 0;
  z-index: 1000;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(101, 71, 59, 0.80);
  backdrop-filter: blur(15px);
  padding: 0.8rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.navbar ul {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  list-style: none;
}
.navbar a {
  color: var(--light);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.6rem 1.2rem;
  border-radius: 30px;
  transition: var(--transition);
}
.navbar a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* search */
.nav-search-container { list-style: none; }
.nav-search {
  position: relative;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  overflow: hidden;
  min-width: 220px;
  height: 40px;
  display: flex;
  align-items: center;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.nav-search:focus-within {
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.4);
}
#searchInput {
  background: transparent;
  border: none;
  outline: none;
  color: white;
  padding: 0 50px 0 16px;
  width: 100%;
  height: 100%;
  font-size: 0.95rem;
}
#searchInput::placeholder { color: rgba(255, 255, 255, 0.8); }
#searchBtn {
  position: absolute;
  right: 4px;
  background: transparent;
  color: white;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
#searchBtn:hover {
  background: transparent;
  transform: scale(1.1);
}

/* Hamburger Menu Icon */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 1001;
}
.menu-toggle::before,
.menu-toggle::after,
.menu-toggle span {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: white;
  left: 8px;
  transition: var(--transition);
}
.menu-toggle::before { top: 12px; }
.menu-toggle span { top: 19px; }
.menu-toggle::after { top: 26px; }

/* Active state (X) */
.menu-toggle.active::before { transform: rotate(45deg); top: 19px; }
.menu-toggle.active::after { transform: rotate(-45deg); top: 19px; }
.menu-toggle.active span { opacity: 0; }

/* hero */
.hero {
  background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.6)), url('../assets/hero-background.png') center/cover no-repeat;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1rem;
}
.hero-content {
  max-width: 900px;
  animation: fadeInUp 1.2s ease-out;
}
.hero-content .logo {
  width: 120px;
  height: 120px;
  background: white;
  padding: 12px;
  border-radius: 50%;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}
.hero-content h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  color: var(--light);
  margin: 0 0 1rem;
  letter-spacing: -1px;
}
.hero-content p {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  font-weight: 300;
}
.cta-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.9rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 15px rgba(139, 94, 60, 0.4);
}
.cta-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(139, 94, 60, 0.4);
}
.cta-btn #scrollLink {
  color: white;
  text-decoration: none;
}

/* section titles */
section h2 {
  font-family: 'Girasol', serif;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  color: var(--primary-dark);
  margin: 2.5rem 0 1.5rem 1rem;
  position: relative;
}
section h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 60px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
}

/* trending books section */
.book-slider { overflow: hidden; padding: 1rem 0; }
.book-grid {
  display: flex;
  gap: 1.2rem;
  animation: scrollBooks 25s linear infinite;
  padding: 0 1rem;
}
.book-item:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}
.book-item {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  background-color: rgba(99, 32, 36, 0.4);
  border-radius: var(--radius);
  padding: 10px;
  text-align: center;
  color: white;
  width: 200px;
  flex-shrink: 0;
  box-shadow: var(--shadow);
  transition: var(--transition);
  backdrop-filter: blur(5px);
}
.book-item img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 10px;
}
.book-item h3 {
  font-size: 1.1rem;
  margin: 0.8rem 0 0.4rem;
  color: var(--light);
}
.book-item p {
  font-size: 0.9rem;
  color: #eee;
  font-style: italic;
}
@keyframes scrollBooks { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.book-slider:hover .book-grid { animation-play-state: paused; }

/* mood and genre sections */
.mood-container {
  display: flex;
  gap: 5px;
  justify-content: space-between;
  flex-wrap: nowrap;
  padding: 0 1em;
}
.mood-item {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  flex: 1 1 0;
  height: 100px;
  border-radius: 15px;
  overflow: hidden;
  color: white;
  font-weight: bold;
  font-size: 1rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s;
  background-size: cover;
  background-position: center;
  cursor: pointer;
}
.mood-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.4);
  z-index: 0;
}
.mood-item p {
  position: relative;
  z-index: 1;
  margin: 0;
}
.mood-item:hover {
  transform: scale(1.05);
}
.genre-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
  margin: 10px;
}
.genre-item {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  flex: 1 1 0;
  height: 100px;
  border-radius: 15px;
  overflow: hidden;
  color: white;
  font-weight: bold;
  font-size: 1rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s;
  background-size: cover;
  background-position: center;
  cursor: pointer;
}
.genre-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.4);
  z-index: 0;
}
.genre-item p {
  position: relative;
  z-index: 1;
  margin: 0;
}
.genre-item:hover {
  transform: scale(1.05);
}

/* based on your last reading section */
.lastread-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.8rem;
  padding: 2rem 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.lastread-item1,
.lastread-item2,
.lastread-item3 {
  background: rgba(120, 100, 63, 0.35);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(212, 165, 116, 0.2);
}

.lastread-item1:hover,
.lastread-item2:hover,
.lastread-item3:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* image styling */
.lastread-item1 img,
.lastread-item2 img,
.lastread-item3 img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 4px solid var(--accent);
}

/* text content */
.text-content {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex-grow: 1;
}
.text-content h3 {
  color: var(--primary-dark);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0;
}
.text-content p {
  color: #555;
  font-size: 0.95rem;
  line-height: 1.5;
}
.text-content button {
  align-self: flex-start;
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.65rem 1.4rem;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  margin-top: auto;
}
.text-content button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(106, 63, 58, 0.3);
}

/* why section and footer */
.why-section {
  background: #65473B;
  padding: 4rem 1rem;
  text-align: center;
  color: white;
}
.why-section h2 {
  color: #fff;
}
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.feature {
  background: rgba(255, 255, 255, 0.1);
  padding: 1.5rem;
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.feature:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-8px);
}
.feature img {
  filter: brightness(0) invert(1);
  width: 50px;
  margin-bottom: 1rem;
}
.feature strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.contact-footer {
  padding: 3rem 1rem 2rem;
  text-align: center;
}
.footer-header h2 {
  color: var(--primary-dark);
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}
.footer-header p {
  color: #777;
  margin-bottom: 2.5rem;
}
.footer-contacts ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  list-style: none;
}
.footer-contacts a {
  color: var(--primary-dark);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}
.footer-contacts a:hover {
  color: var(--primary);
  transform: translateY(-2px);
}

.icon img {
  width: 24px;
  height: 24px;
  filter: brightness(0) saturate(100%) invert(28%) sepia(11%) saturate(1500%) hue-rotate(330deg);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* mobile responsive */
@media (max-width: 768px) {
  .navbar ul {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 60%;
    background: rgba(101, 71, 59, 0.70);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 0;
    transition: left 0.4s ease;
    gap: 1rem;
  }
  .navbar ul.active {
    left: 0;
  }
  .menu-toggle {
    display: block;
  }
  .nav-search {
    min-width: 160px;
  }

  /* Stack last read cards vertically */
  .lastread-container {
    grid-template-columns: 1fr;
    padding: 1.5rem 1rem;
  }

  .mood-container {
    flex-wrap: wrap;
  }
  .mood-item {
    min-height: 80px;
    font-size: 0.9rem;
  }

  .genre-container {
    grid-template-columns: 1fr 1fr;
  }
}