/* ===========================
🌐 THEME VARIABLES
=========================== */
:root {
  --color-primary: #1a3c6e;
  --color-dark: #444;
  --color-light: #fff;
  --color-text: #555;
  --color-heading: #1a2d45;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --radius: 12px;
}

/* ===========================
🌟 GLOBAL ELEMENT STYLES
=========================== */
body {
  color: var(--color-text);
  font-family: "Segoe UI", sans-serif;
  overflow-x: hidden;
}

h2, h3, h4, h5, h6 {
  color: var(--color-heading);
}

/* ===========================
🚩 SECTION TITLES
=========================== */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 1rem;
  position: relative;
}
.section-title::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 0.5rem auto;
}

.section-subtitle {
  color: #6c757d;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

/* ===========================
🧱 CARD STYLING
=========================== */
.card {
  border: none;
  border-radius: var(--radius);
  background-color: var(--color-light);
  box-shadow: 0 4px 12px var(--color-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px var(--color-shadow);
}

/* Card Images */
.card-img-top,
.card img {
  width: 100%;
  object-fit: cover;
}
.card-img-top {
  height: 200px;
}
.card.text-center img {
  height: 60px;
}

/* Card Body */
.card-body {
  padding: 1.25rem;
}
.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 0.5rem;
}
.card-text {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 1rem;
}

/* ===========================
🎯 BUTTON STYLES
=========================== */
.btn-outline-primary {
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-outline-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-light);
}

.btn-outline-dark {
  color: var(--color-dark);
  border: 1px solid var(--color-dark);
}
.btn-outline-dark:hover {
  background-color: var(--color-dark);
  color: var(--color-light);
}

/* Card Links */
.card .btn {
  font-weight: 500;
  border-radius: 50px;
  padding: 0.375rem 1rem;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.mini-gallery-grid {
  padding: 40px 20px;
}

.mini-gallery-grid .section-title {
  margin-bottom: 30px;
}

/* four columns, with 20px gap */
.mini-gallery-grid .grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px 20px;
  /* row-gap 20px, col-gap 20px */
}

/* responsive: collapse at tablet+mobile */
@media (max-width: 900px) {
  .mini-gallery-grid .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .mini-gallery-grid .grid {
    grid-template-columns: 1fr;
  }
}

/* image styling */
.mini-gallery-grid img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.mini-gallery-grid img:hover {
  transform: scale(1.02);
}