/* -------------------------
   GLOBAL VARIABLES
-------------------------- */
:root {
  --color-primary: #0A2740; /* deep green */
  --color-accent: #F5F5F5;  /* rich red */
  --color-light: #ffffff;
  --color-dark: #1a1a1a;
  --color-muted: #f4f4f4;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-heading: 'Playfair Display', serif;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-blur: blur(10px);
}

/* Dark mode variables */
body.dark-mode {
  --color-light: #121212;
  --color-dark: #f8f8f8;
  --color-muted: #1f1f1f;
  --glass-bg: rgba(0, 0, 0, 0.25);
}

/* -------------------------
   RESET
-------------------------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--color-light);
  color: var(--color-dark);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background var(--transition-smooth), color var(--transition-smooth);
}


img { max-width: 100%; display: block; }

/* -------------------------
   HEADER + NAVBAR
-------------------------- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  backdrop-filter: var(--glass-blur);
}
.branding {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo {
  height: 55px;
  width: auto;
  border-radius: 12px;
  transition: transform 0.4s ease;
}
.logo:hover {
  transform: scale(1.08) rotate(-2deg);
}
header h1 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  letter-spacing: 1px;
  color: var(--color-light);
  text-shadow: 1px 2px 8px rgba(0, 0, 0, 0.5);
}
nav select {
  padding: 0.6rem 1rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  font-weight: 600;
  color: var(--color-dark);
  transition: all var(--transition-smooth);
}
nav select:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.button-products {
   padding: 0.6rem 1rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  font-weight: 600;
  color: var(--color-dark);
  transition: all var(--transition-smooth);
}            
/* Hover effect */
.button-products:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}



/* -------------------------
   INTRO
-------------------------- */
.intro {
  text-align: center;
  padding: 70px 20px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: var(--color-light);
}
.intro h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: 15px;
}
.intro p {
  max-width: 850px;
  margin: auto;
  font-size: 1.2rem;
  opacity: 0.95;
}

/* -------------------------
   ABOUT SECTION
-------------------------- */
.about {
  padding: 80px 20px;
  max-width: 950px;
  margin: auto;
  text-align: center;
  animation: fadeInUp 1s ease both;
}
.about h2 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  margin: 25px 0 15px;
  font-size: 2rem;
}
.about p {
  margin-bottom: 25px;
  font-size: 1.15rem;
  opacity: 0.9;
  line-height: 1.8;
}

/* -------------------------
   CATEGORY SECTIONS
-------------------------- */
.category {
  padding: 80px 20px;
  max-width: 1150px;
  margin: auto;
  text-align: center;
  animation: fadeInUp 1.2s ease both;
}
.category:nth-child(even) { background: var(--color-muted); }
.category h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
  letter-spacing: 1px;
  position: relative;
}
.category h2::after {
  content: "";
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  display: block;
  margin: 10px auto 0;
  border-radius: 2px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 25px;
}
.slot {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  padding: 50px 15px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.3);
  font-weight: bold;
  color: var(--color-dark);
  cursor: pointer;
  transition: all 0.4s ease;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}
.slot:hover {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-light);
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}
/* PRODUCT GRID WITH IMAGE SLOTS */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 25px;
  margin-top: 25px;
}
.grid div {
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  padding: 15px;
  border-radius: 16px;
  transition: all 0.4s ease;
}
.grid div:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.25);
}
.grid img {
  width: 100%;
  height: 220px;         /* same height for all */
  object-fit: cover;     /* crops neatly */
  border-radius: 12px;
  margin-bottom: 10px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.grid img:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 28px rgba(0,0,0,0.35);
}
.grid p {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-dark);
}


/* -------------------------
   FOOTER
-------------------------- */
footer {
  text-align: center;
  background: var(--color-primary);
  color: var(--color-light);
  padding: 2.5rem 20px;
  margin-top: 50px;
}
footer a {
  color: #ffe5e5;
  margin: 0 12px;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}
footer a:hover {
  color: var(--color-accent);
}

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

/* -------------------------
   RESPONSIVE DESIGN
-------------------------- */
@media (max-width: 992px) {
  header { flex-direction: column; gap: 10px; text-align: center; }
  .branding { flex-direction: column; }
}
@media (max-width: 768px) {
  nav select { width: 100%; }
  .intro h2 { font-size: 1.8rem; }
  .about h2, .category h2 { font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .intro p, .about p { font-size: 1rem; }
  .grid { gap: 15px; }
  .slot { padding: 30px 10px; }
}
/* -------------------------
   BACK TO TOP BUTTON
-------------------------- */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: none; /* hidden until scroll */
  justify-content: center;
  align-items: center;
  width: 55px;
  height: 55px;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  color: var(--color-light);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  transition: all 0.4s ease;
  z-index: 1200;
}

#backToTop:hover {
  transform: scale(1.15) rotate(10deg);
  box-shadow: 0 10px 28px rgba(0,0,0,0.4);
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
}

/* Animate fade-in */
#backToTop {
  animation: fadeInUp 0.6s ease both;
}