/* ==========================
   Card
========================== */
.card {
  background: var(--card-bg-night);
  padding: 25px;
  border-radius: 16px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  box-shadow: 0 8px 20px var(--card-shadow-night);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px var(--card-shadow-night);
}

body.day-mode .card {
  background: var(--card-bg-day);
  box-shadow: 0 8px 20px var(--card-shadow-day);
}

body.day-mode .card:hover {
  box-shadow: 0 10px 30px var(--card-shadow-day);
}

/* ==========================
   Buttons
========================== */
.btn {
  background: var(--primary-color-night);
  padding: 10px 18px;
  border-radius: 30px;
  color: var(--text-color-night);
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
  border: none;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

body.day-mode .btn {
  background: var(--primary-color-day);
  color: var(--text-color-day);
}

body.day-mode .btn:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

/* Glass Button */
.btn.glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-color-night);
}

body.day-mode .btn.glass {
  color: var(--text-color-day);
  border: 1px solid rgba(0,0,0,0.1);
  background: rgba(255,255,255,0.08);
}

/* Outline Button */
.btn.outline {
  background: transparent;
  border: 1px solid var(--primary-color-night);
  color: var(--primary-color-night);
}

body.day-mode .btn.outline {
  border: 1px solid var(--primary-color-day);
  color: var(--primary-color-day);
}