/* =============================================
   GRADE CALCULATOR — grade.css
   Tool-specific styles only.
   Common styles are in tool.css
   ============================================= */

.grade-calc { width: 100%; display: flex; flex-direction: column; gap: 24px; }

.grade-section {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow);
}
.grade-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 8px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--teal);
    display: inline-block;
}
.grade-desc {
    font-size: 13px;
    color: var(--text2);
    margin-bottom: 16px;
    line-height: 1.6;
}

/* Input table */
.grade-table-wrap { margin-bottom: 16px; overflow-x: auto; }
.grade-input-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.grade-input-table thead th {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 100%);
    color: #fff;
    padding: 10px 12px;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.grade-input-table thead th:nth-child(2),
.grade-input-table thead th:nth-child(3) { text-align: center; }
.grade-input-table thead th:first-child { border-radius: 8px 0 0 0; }
.grade-input-table thead th:last-child  { border-radius: 0 8px 0 0; width: 40px; }

.grade-row td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
    background: var(--white);
}
.grade-row:nth-child(even) td { background: #fafbfc; }
.grade-row:hover td { background: #f0fdf9; }

.grade-name-input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-main);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.grade-name-input:focus { border-color: var(--teal); }

.grade-grade-input {
    width: 90px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-mono);
    color: var(--text);
    outline: none;
    text-align: center;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.grade-grade-input:focus { border-color: var(--teal); }

.grade-weight-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
}
.grade-weight-input {
    width: 70px;
    padding: 8px 6px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-mono);
    color: var(--text);
    outline: none;
    text-align: center;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.grade-weight-input:focus { border-color: var(--teal); }
.grade-pct { font-size: 13px; font-weight: 700; color: var(--muted); }

/* Planning section */
.grade-planning-wrap {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 100%);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-bottom: 16px;
}
.grade-planning-title {
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.grade-planning-fields { display: flex; flex-direction: column; gap: 10px; }
.grade-planning-row {
    display: flex;
    align-items: center;
    gap: 12px;
}
.grade-planning-row label {
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    min-width: 180px;
}
.grade-planning-input {
    width: 120px;
    padding: 7px 10px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-mono);
    color: var(--text);
    background: rgba(255,255,255,0.95);
    outline: none;
    text-align: center;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.grade-planning-input:focus { border-color: var(--teal); }

/* Final grade form */
.grade-final-form {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 8px;
}
.grade-final-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-family: var(--font-mono);
    color: var(--text);
    background: var(--white);
    outline: none;
    text-align: center;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.grade-final-input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(0,201,167,0.1); }

/* Result box */
.grade-result-box {
    margin-top: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.grade-result-header {
    background: #16a34a;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    padding: 10px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Average display */
.grade-avg-display {
    padding: 16px 18px 8px;
    font-size: 16px;
    color: var(--text2);
    font-weight: 500;
    border-bottom: 1px solid var(--border);
}
.grade-avg-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--teal);
    font-family: var(--font-mono);
}

/* Breakdown */
.grade-breakdown-table { padding: 12px 16px; }
.grade-result-table { width: 100%; }
.grade-result-table td:not(:first-child) { text-align: center; font-family: var(--font-mono); }

/* Meta row */
.grade-meta-row {
    display: flex;
    gap: 20px;
    padding: 10px 16px 14px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.grade-meta-item {
    font-size: 13px;
    color: var(--text2);
}
.grade-meta-item strong { color: var(--navy); }

/* Plan box */
.grade-plan-box {
    margin: 0 16px 16px;
    padding: 14px 16px;
    background: var(--light);
    border: 1px solid var(--border);
    border-left: 4px solid var(--teal);
    border-radius: 8px;
}
.grade-plan-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--navy);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 8px;
}
.grade-plan-needed {
    font-size: 15px;
    font-weight: 600;
    margin-top: 6px;
}

/* Answer cards */
.grade-ans-cards {
    padding: 16px;
    background: var(--light);
    border-bottom: 1px solid var(--border);
}
.grade-ans-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 18px;
    max-width: 300px;
}
.grade-ans-card.highlight { border-color: var(--teal); background: #f0fdf9; }
.grade-ans-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 6px;
}
.grade-ans-value {
    font-size: 36px;
    font-weight: 700;
    font-family: var(--font-mono);
    line-height: 1.1;
}
.grade-final-breakdown { padding: 0; }

/* Reuse gpa-del-btn */
.gpa-del-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: #fee2e2;
    color: #dc2626;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    transition: all 0.2s;
}
.gpa-del-btn:hover { background: #dc2626; color: #fff; }
.gpa-add-btn {
    margin-top: 10px;
    padding: 8px 16px;
    background: none;
    border: 1.5px dashed var(--teal);
    border-radius: 8px;
    color: var(--teal);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    font-family: var(--font-main);
    transition: all 0.2s;
    width: 100%;
}
.gpa-add-btn:hover { background: #f0fdf9; }

@media (max-width: 600px) {
    .grade-final-form { grid-template-columns: 1fr; }
    .grade-planning-row { flex-direction: column; align-items: flex-start; }
}

/* =============================================
   GRADE SETTINGS PANEL
   ============================================= */
.grade-settings-wrap { margin: 12px 0; }
.grade-settings-panel {
    margin-top: 10px;
    background: var(--light);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.grade-settings-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.grade-settings-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--navy);
    min-width: 120px;
}
.grade-settings-options { display: flex; gap: 20px; flex-wrap: wrap; }
.bmi-radio-label { display: flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 500; color: var(--text); cursor: pointer; }
.bmi-radio-label input[type="radio"] { width: 17px; height: 17px; accent-color: var(--teal); cursor: pointer; }
.date-checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text2); cursor: pointer; }
.date-checkbox-label input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--teal); cursor: pointer; }