/* ── Global Layout & Typography ── */

/* Base body styles */
body {
  font-family: var(--font-stack);
  background-color: var(--bg);
  color: var(--text);
  text-align: center;
  padding: 2rem;
  padding-top: 70px; /* account for fixed navbar */
}

/* Headings */
h1 {
  margin-bottom: var(--base-gap);
  font-size: 2rem;
}

/* Navbar */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background-color: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}
#navbar a {
  color: white;
  text-decoration: none;
  padding: 0 1rem;
  font-weight: bold;
}
#navbar a:hover {
  color: var(--text);
}

/* Grids */
.grid {
  display: grid;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.grid.two {
  grid-template-columns: repeat(2, 100px);
  gap: 2rem;
}
.grid.three {
  grid-template-columns: 90px auto 90px;
}

/* Cells & Symbols */
.cell {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--card-bg);
  border-radius: 1rem;
  font-size: 2.5rem;
  box-shadow: 3px 3px 5px rgba(0, 0, 0, 0.3);
  transition: background 0.3s, transform 0.2s;
  user-select: none;
  cursor: pointer;
}
.left-num,
.right-num {
  background: beige;
  width: 90px;
  height: 90px;
  font-size: 4rem;
  border-radius: 20%;
  color: #17335c;
}
.plus-sign,
.equal-sign {
  background: transparent;
  font-size: 5rem;
  color: var(--text);
  box-shadow: none;
  cursor: default;
}
.cell.empty {
  background: transparent;
  border: none;
  box-shadow: none;
}

/* Cards & Containers */
.card-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  padding: 1rem;
  max-width: 600px;
  margin: 0 auto;
}
.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--card-bg);
  color: var(--text);
  padding: 1.2rem;
  text-align: center;
  border-radius: 12px;
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.15);
  font-weight: bold;
  transition: transform 0.2s, background-color 0.2s;
}
.card img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}
.card:hover {
  transform: scale(1.05);
  background-color: var(--accent);
  color: white;
}

/* User Selection Grid */
.user-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}
.user-card {
  background: var(--card-bg);
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: transform 0.2s, background-color 0.2s;
  width: 120px;
  text-align: center;
}
.user-card:hover {
  transform: scale(1.05);
  background-color: var(--hover);
  color: white;
}
.user-card img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin-bottom: 0.5rem;
}
.user-card span {
  display: block;
  font-weight: bold;
}

/* Dashboard */
.user-box {
  background: #2b4a7f;
  color: var(--success-color);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}
#dashboard-container {
  padding: 0 1rem;
}
ul {
  padding-left: 1.2rem;
}
#home-card-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  padding: 2rem;
}
.user-banner {
  padding: 0.75rem;
  text-align: center;
  font-size: 0.9rem;
  border-radius: 8px;
  margin: 1rem auto;
  max-width: 360px;
}
.user-banner.guest {
  background: var(--card-bg);
  color: var(--text);
  border: 2px dashed #d9a600;
}
.user-banner.logged-in {
  background: var(--muted-green);
  color: var(--text);
  border: 2px solid var(--accent);
}

/* Multiplication Answer Buttons */
.answer {
  background: beige;
  width: 80px;
  height: 80px;
  font-size: 2.5rem;
  border-radius: 50%;
  transition: transform 0.2s;
  color: #17335c;
}
@media (hover: hover) and (pointer: fine) {
  .answer:hover {
    background-color: var(--hover);
    color: white;
    transform: scale(1.08);
  }
}
/* .answer:hover {
  background-color: var(--hover);
  color: white;
  transform: scale(1.08);
} */
.correct {
  background: var(--success-color) !important;
  color: #fff;
}
.wrong {
  background: var(--error-color) !important;
  color: #fff;
}

/* Responsive adjustments */
@media (max-width: 500px) {
  .grid.two { grid-template-columns: repeat(2, 70px); gap: 1rem; }
  .grid.three { grid-template-columns: 70px auto 70px; }
  .cell { width: 70px; height: 70px; font-size: 2rem; }
  .left-num, .right-num { width: 70px; height: 70px; font-size: 3rem; }
  .plus-sign, .equal-sign { font-size: 3rem; }
}
@media (min-width: 768px) {
  .button { width: auto; font-size: 1.25rem; }
}