/* GPA·학점 계산기 전용 스타일 */

nav { max-width: 820px; }
main { max-width: 820px; }

.card-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.85rem;
}

.mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-bottom: 0.95rem;
}

.mode-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.8rem 0.5rem;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.mode-tab:hover { border-color: var(--text-sub); color: var(--text); }
.mode-tab.active {
  background: rgba(99, 102, 241, 0.08);
  border-color: var(--primary);
  color: var(--primary);
}

.tab-icon { font-size: 1.35rem; }
.tab-label { font-size: 0.94rem; font-weight: 800; }
.tab-hint { font-size: 0.74rem; opacity: 0.8; }

.gpa-card {
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.95rem;
}

.course-head {
  display: grid;
  grid-template-columns: 1fr 90px 110px 36px;
  gap: 0.5rem;
  padding: 0 0.35rem 0.4rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-sub);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.45rem;
}

.course-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.55rem;
}

.course-row {
  display: grid;
  grid-template-columns: 1fr 90px 110px 36px;
  gap: 0.5rem;
  align-items: center;
}

.course-row input[type="text"],
.course-row input[type="number"],
.course-row select {
  padding: 0.55rem 0.6rem;
  font-size: 0.95rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s;
}
.course-row input[type="text"] {
  font-family: inherit;
  font-weight: 500;
}
.course-row input:focus,
.course-row select:focus { border-color: var(--primary); }

.btn-row-remove {
  width: 32px;
  height: 32px;
  font-size: 0.85rem;
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-row-remove:hover {
  background: rgba(239, 68, 68, 0.08);
  border-color: var(--error);
  color: var(--error);
}

.btn-add-row {
  width: 100%;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--bg);
  color: var(--text-sub);
  border: 1px dashed var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.btn-add-row:hover {
  border-color: var(--primary);
  border-style: solid;
  color: var(--primary);
}

.result-card {
  padding: 1.1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.result-hero {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.4rem;
  padding: 1.1rem 1rem;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 11px;
  margin-bottom: 1.1rem;
}
.hero-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  margin-right: 0.4rem;
}
.hero-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
.hero-scale {
  font-size: 0.9rem;
  color: var(--text-sub);
  font-weight: 600;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 1rem;
}

.info-cell {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.info-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.info-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.info-value.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}

.conv-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.5rem 0.8rem;
  align-items: end;
  margin-bottom: 1rem;
}

.conv-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.conv-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}
.conv-label em {
  font-style: normal;
  font-size: 0.74rem;
  color: var(--text-sub);
  font-weight: 500;
  margin-left: 0.25rem;
}

.conv-field input {
  padding: 0.7rem 0.8rem;
  font-size: 1.5rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-weight: 800;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--primary);
  outline: none;
  font-variant-numeric: tabular-nums;
  text-align: center;
  transition: border-color 0.15s;
}
.conv-field input:focus { border-color: var(--primary); }

.conv-arrow {
  font-size: 1.4rem;
  color: var(--text-sub);
  padding-bottom: 0.6rem;
}

.conv-extra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 1rem;
  margin-bottom: 0.85rem;
}

.extra-cell {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.extra-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.extra-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.extra-value.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}

.conv-note {
  margin-top: 0.5rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.8rem;
  color: var(--text-sub);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  line-height: 1.6;
}

@media (max-width: 600px) {
  .course-head { grid-template-columns: 1fr 70px 90px 32px; font-size: 0.68rem; }
  .course-row { grid-template-columns: 1fr 70px 90px 32px; gap: 0.35rem; }
  .conv-grid { grid-template-columns: 1fr; gap: 0.6rem; }
  .conv-arrow { transform: rotate(90deg); padding: 0.2rem 0; text-align: center; }
  .conv-extra { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .hero-value { font-size: 1.8rem; }
  .conv-field input { font-size: 1.3rem; }
}