/* CGPA Calculator Pro — cgpa-calculator.css */
:root {
    --cgpa-primary: #185FA5;
    --cgpa-radius: 10px;
    --cgpa-border: #e0e0e0;
    --cgpa-bg: #ffffff;
    --cgpa-bg2: #f5f6f8;
    --cgpa-text: #1a1a1a;
    --cgpa-muted: #666;
}

/* ── Dark theme ── */
.cgpa-theme-dark {
    --cgpa-bg: #1e1e2e;
    --cgpa-bg2: #2a2a3d;
    --cgpa-border: #3a3a5c;
    --cgpa-text: #e8e8f0;
    --cgpa-muted: #9090a8;
}

/* ── Wrapper ── */
.cgpa-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--cgpa-bg);
    color: var(--cgpa-text);
    border: 1px solid var(--cgpa-border);
    border-radius: var(--cgpa-radius);
    padding: 1.5rem;
    max-width: 780px;
    margin: 0 auto;
}

/* ── Header ── */
.cgpa-header { margin-bottom: 1.25rem; }
.cgpa-title  { font-size: 20px; font-weight: 600; margin: 0 0 .75rem; color: var(--cgpa-text); }

/* ── Scale / Mode toggles ── */
.cgpa-scale-toggle,
.cgpa-mode-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.cgpa-scale-btn,
.cgpa-mode-btn {
    flex: 1;
    padding: 7px 12px;
    font-size: 13px;
    border: 1px solid var(--cgpa-border);
    border-radius: 8px;
    cursor: pointer;
    background: var(--cgpa-bg2);
    color: var(--cgpa-muted);
    transition: all .15s ease;
    min-width: 140px;
}
.cgpa-scale-btn.active,
.cgpa-mode-btn.active {
    background: var(--cgpa-primary);
    color: #fff;
    border-color: var(--cgpa-primary);
}

/* ── Table ── */
.cgpa-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin-bottom: .75rem;
}
.cgpa-table th {
    text-align: left;
    padding: 6px 8px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--cgpa-muted);
    border-bottom: 1px solid var(--cgpa-border);
}
.cgpa-table td {
    padding: 6px 6px;
    vertical-align: middle;
}
.cgpa-table input[type="text"],
.cgpa-table input[type="number"],
.cgpa-table select {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--cgpa-border);
    border-radius: 6px;
    background: var(--cgpa-bg2);
    color: var(--cgpa-text);
    font-size: 13px;
}
.cgpa-table input:focus,
.cgpa-table select:focus { outline: 2px solid var(--cgpa-primary); border-color: transparent; }

/* ── Buttons ── */
.cgpa-add-row-btn,
.cgpa-add-sem-btn {
    display: block;
    width: 100%;
    padding: 8px;
    font-size: 13px;
    border: 1px dashed var(--cgpa-border);
    border-radius: 8px;
    background: none;
    color: var(--cgpa-muted);
    cursor: pointer;
    margin-top: 6px;
    transition: background .15s;
}
.cgpa-add-row-btn:hover,
.cgpa-add-sem-btn:hover { background: var(--cgpa-bg2); }

.cgpa-del-btn {
    background: none;
    border: none;
    color: var(--cgpa-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 16px;
    line-height: 1;
}
.cgpa-del-btn:hover { background: #fde8e8; color: #c0392b; }

/* ── Results grid ── */
.cgpa-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
    margin: 1.25rem 0;
}
.cgpa-result-card {
    background: var(--cgpa-bg2);
    border-radius: 8px;
    padding: .85rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.cgpa-result-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--cgpa-muted); }
.cgpa-result-value { font-size: 22px; font-weight: 600; color: var(--cgpa-text); }
.cgpa-result-main .cgpa-result-value { color: var(--cgpa-primary); }

/* ── Progress bar ── */
.cgpa-progress-wrap  { margin: .5rem 0 1rem; }
.cgpa-progress-bar   { height: 8px; background: var(--cgpa-bg2); border-radius: 20px; overflow: hidden; border: 1px solid var(--cgpa-border); }
.cgpa-progress-fill  { height: 100%; background: var(--cgpa-primary); border-radius: 20px; transition: width .4s ease; }
.cgpa-progress-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--cgpa-muted); margin-top: 4px; }

/* ── Detail section ── */
.cgpa-detail-section { background: var(--cgpa-bg2); border-radius: 10px; padding: 1rem 1.25rem; margin-top: .5rem; }
.cgpa-detail-section h4 { font-size: 13px; font-weight: 600; margin: 0 0 .75rem; color: var(--cgpa-text); }
.cgpa-detail-grid { display: grid; gap: 6px; }
.cgpa-detail-row { display: flex; justify-content: space-between; font-size: 13px; padding: 5px 0; border-bottom: 1px solid var(--cgpa-border); }
.cgpa-detail-row:last-child { border: none; }
.cgpa-detail-key  { color: var(--cgpa-muted); }
.cgpa-detail-val  { font-weight: 500; color: var(--cgpa-text); }

/* ── Grade badge ── */
.cgpa-badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: 20px; }
.cgpa-badge-O  { background: #d4edda; color: #155724; }
.cgpa-badge-Ap { background: #cce5ff; color: #004085; }
.cgpa-badge-A  { background: #e3f2fd; color: #0c3a6e; }
.cgpa-badge-Bp { background: #e1f5ee; color: #0b6343; }
.cgpa-badge-B  { background: #fffde7; color: #7c6200; }
.cgpa-badge-C  { background: #fff3e0; color: #7b3f00; }
.cgpa-badge-D  { background: #fce4ec; color: #880e4f; }
.cgpa-badge-F  { background: #ffebee; color: #b71c1c; }

/* ── Semester cards ── */
.cgpa-sem-card {
    border: 1px solid var(--cgpa-border);
    border-radius: 10px;
    padding: .85rem 1rem;
    margin-bottom: .75rem;
}
.cgpa-sem-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: .5rem;
}
.cgpa-sem-title { font-size: 13px; font-weight: 600; background: none; border: none; color: var(--cgpa-text); padding: 0; cursor: text; }
.cgpa-sem-gpa   { font-size: 13px; font-weight: 600; color: var(--cgpa-primary); }

/* ── Responsive ── */
@media(max-width: 560px) {
    .cgpa-table th:first-child,
    .cgpa-table td:first-child { display: none; }
    .cgpa-results { grid-template-columns: 1fr 1fr; }
}