/* Estilos específicos para GPA */
.grade-rows {
    width: 100%;
    overflow: hidden;
}

/* College mode: 4 columnas (sin tipo de clase) */
.gpa-row {
    display: grid;
    grid-template-columns: minmax(0, 2.5fr) minmax(0, 1.4fr) minmax(0, 1.2fr) 40px;
    gap: 8px;
    align-items: center;
    padding-bottom: 15px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--glass-border);
    animation: fadeIn 0.3s ease-out;
    min-width: 0;
    width: 100%;
}

.gpa-row:last-child {
    border-bottom: none;
    margin-bottom: 10px;
    padding-bottom: 0;
}

.gpa-row:hover {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
}

[data-theme="light"] .gpa-row:hover {
    background: rgba(14, 165, 233, 0.03);
}

.gpa-row > * {
    min-width: 0;
}

.gpa-row input,
.gpa-row select {
    width: 100%;
    box-sizing: border-box;
}

.field-type {
    display: none;
}

/* High School mode: 5 columnas (con tipo de clase) */
.mode-hs .gpa-row {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 1.3fr) 40px;
}

.mode-hs .field-type {
    display: block;
}

.mobile-label {
    display: none;
}

.credits-input-group {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    height: 42px;
    width: 100%;
    box-sizing: border-box;
}

[data-theme="light"] .credits-input-group {
    background: rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.credits-input-group input {
    flex: 1;
    background: transparent;
    border: none;
    text-align: center;
    color: white;
    font-weight: 600;
    -moz-appearance: textfield;
    padding: 0;
    width: 100%;
    border-radius: 0;
}

.credits-input-group input:focus {
    box-shadow: none;
    background: transparent;
}

.credits-input-group input::-webkit-outer-spin-button,
.credits-input-group input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

[data-theme="light"] .credits-input-group input {
    color: #1e293b;
}

.credits-input-group button {
    width: 32px;
    height: 100%;
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.6);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

[data-theme="light"] .credits-input-group button {
    color: rgba(0,0,0,0.6);
}

.credits-input-group button:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

[data-theme="light"] .credits-input-group button:hover {
    background: rgba(0,0,0,0.1);
    color: black;
}



.deans-list-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 165, 0, 0.2));
    border: 1px solid rgba(255, 215, 0, 0.3);
    color: #ffd700;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    margin-top: 15px;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.deans-list-badge.visible {
    opacity: 1;
    transform: translateY(0);
}

.letter-select {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: white;
    padding: 10px 28px 10px 12px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.35)' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 14px;
    outline: none;
    transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
    width: 100%;
    box-sizing: border-box;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

.letter-select:hover {
    border-color: rgba(255, 255, 255, 0.18);
    background-color: rgba(255, 255, 255, 0.09);
}

.letter-select:focus {
    outline: none;
    border-color: rgba(6, 182, 212, 0.6);
    background-color: rgba(6, 182, 212, 0.08);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.12);
}

/* Opciones en modo oscuro */
.letter-select option {
    background-color: #1e293b;
    color: white;
    padding: 8px 12px;
}

[data-theme="light"] .letter-select {
    background-color: rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: #1e293b;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='rgba(0,0,0,0.35)' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 14px;
}

[data-theme="light"] .letter-select:hover {
    border-color: rgba(0, 0, 0, 0.2);
    background-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .letter-select:focus {
    border-color: rgba(14, 165, 233, 0.6);
    background-color: rgba(14, 165, 233, 0.06);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
}

[data-theme="light"] .letter-select option {
    background-color: white;
    color: #1e293b;
}


.cumulative-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
}

[data-theme="light"] .cumulative-group {
    background: rgba(0, 0, 0, 0.02);
}

@media (max-width: 768px) {
    .cumulative-group {
        grid-template-columns: 1fr;
    }

    .gpa-row {
        display: grid;
        grid-template-columns: 1fr 45px;
        grid-template-rows: auto auto auto;
        gap: 12px 10px;
        background: rgba(255, 255, 255, 0.02);
        padding: 18px;
        border-radius: 14px;
        border: 1px solid rgba(255, 255, 255, 0.05);
        margin-bottom: 16px;
    }
    
    [data-theme="light"] .gpa-row {
        background: #ffffff;
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    }

    .mobile-label {
        display: block;
        font-size: 0.7rem;
        font-weight: 800;
        text-transform: uppercase;
        color: var(--text-dim);
        margin-bottom: 6px;
        letter-spacing: 0.05em;
    }

    .field-name {
        grid-column: 1 / -1;
        grid-row: 1;
    }
    
    .field-letter {
        grid-column: 1 / -1;
        grid-row: 2;
    }
    
    .gpa-row input,
    .gpa-row select {
        height: 42px;
    }
    
    /* College Mode Mobile */
    .field-credits {
        grid-column: 1;
        grid-row: 3;
    }
    
    .gpa-row .btn-remove {
        grid-column: 2;
        grid-row: 3;
        align-self: end;
        height: 42px;
        width: 100%;
        margin: 0;
        border-radius: 12px;
    }

    /* High School Mode Mobile */
    .mode-hs .gpa-row {
        grid-template-columns: 1fr 45px;
        grid-template-rows: auto auto auto auto;
    }
    
    .mode-hs .field-credits {
        grid-column: 1 / -1;
        grid-row: 3;
    }
    
    .mode-hs .field-type {
        grid-column: 1;
        grid-row: 4;
        display: block;
    }
    
    .mode-hs .btn-remove {
        grid-column: 2;
        grid-row: 4;
    }
}

/* Estilos para las fuentes de verificación */
.source-link {
    padding: 10px 20px; 
    background: rgba(255,255,255,0.03); 
    border: 1px solid var(--glass-border); 
    border-radius: 20px; 
    color: var(--text-dim); 
    text-decoration: none; 
    font-size: 0.9rem; 
    font-weight: 500; 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.source-link:hover {
    background: rgba(255,255,255,0.06);
    color: var(--text-main);
    border-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.1);
}
[data-theme="light"] .source-link {
    background: rgba(0,0,0,0.03);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
[data-theme="light"] .source-link:hover {
    background: rgba(0,0,0,0.05);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.15);
}

/* =============================================
   Sección: Tipos de clase (Premium Cards)
   ============================================= */

.class-types-section {
    padding: 3rem 0;
}

.sm-title {
    font-size: 1.5rem !important;
    font-weight: 800 !important;
    text-align: center;
    margin-bottom: 0.5rem !important;
}

.section-subtitle-sm {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.class-types-pills {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.class-pill {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.class-pill:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.15);
}

.class-pill:hover .pill-icon {
    transform: scale(1.1) rotate(5deg);
    background: rgba(99, 102, 241, 0.15);
}

.pill-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08); /* Unified with pill border */
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.pill-info {
    flex: 1;
    min-width: 0;
}

.pill-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.pill-header strong {
    font-size: 1.1rem;
    color: var(--text-main);
    font-weight: 700;
}

.pill-badge {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    border-radius: 50px;
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
}

.honors-badge { background: rgba(167, 139, 250, 0.15); color: #a78bfa; }
.ap-badge     { background: rgba(34, 211, 238, 0.15);  color: #22d3ee; }

.pill-description {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 16px;
    line-height: 1.5;
}

.pill-formula-box {
    display: inline-flex;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 14px;
    border-radius: 8px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    color: var(--text-main);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.pill-formula-box b {
    color: var(--primary);
    margin: 0 6px;
}

/* Light mode overrides logic */
[data-theme="light"] .class-pill {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.12);
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.06);
}

[data-theme="light"] .pill-icon {
    background: rgba(14, 165, 233, 0.06);
}

[data-theme="light"] .pill-formula-box {
    background: rgba(14, 165, 233, 0.04);
    color: #0c4a6e;
}

[data-theme="light"] .pill-badge {
    background: rgba(148, 163, 184, 0.1);
    color: #64748b;
}
[data-theme="light"] .honors-badge { background: rgba(167, 139, 250, 0.12); color: #7c3aed; }
[data-theme="light"] .ap-badge     { background: rgba(34, 211, 238, 0.12);  color: #0891b2; }

/* Responsive adjustments */
@media (max-width: 900px) {
    .class-types-pills {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
}
@media (max-width: 600px) {
    .class-pill {
        padding: 20px;
        gap: 15px;
    }
    .pill-icon {
        width: 40px;
        height: 40px;
    }
    .pill-header strong {
        font-size: 1rem;
    }
}


/* =============================================
   Estilos específicos para Tabla de letras (dentro de FAQ)
   ============================================= */

.letters-grid-wrapper {
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.letters-table {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.07);
}

.letters-table-head {
    display: grid;
    grid-template-columns: 90px 1fr 1fr 1fr 1fr;
    padding: 10px 16px;
    background: rgba(255,255,255,0.06);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-dim);
    gap: 8px;
}

.letter-row {
    display: grid;
    grid-template-columns: 90px 1fr 1fr 1fr 1fr;
    padding: 8px 16px;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    border-top: 1px solid rgba(255,255,255,0.04);
    transition: background 0.15s ease;
}

.letter-row:hover { background: rgba(255,255,255,0.03); }

.letter-row span { color: var(--text-dim); font-weight: 500; }
.letter-row .range { color: var(--text-dim); opacity: 0.6; font-size: 0.78rem; }

/* Letter badges */
.letter-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.85rem;
    width: 36px;
    height: 28px;
    border-radius: 6px;
    font-family: 'Outfit', sans-serif;
}

.grade-a-plus .letter-badge,
.grade-a .letter-badge      { background: rgba(34,197,94,0.15);  color: #4ade80; }
.grade-b .letter-badge      { background: rgba(59,130,246,0.15); color: #60a5fa; }
.grade-c .letter-badge      { background: rgba(234,179,8,0.15);  color: #facc15; }
.grade-d .letter-badge      { background: rgba(249,115,22,0.15); color: #fb923c; }
.grade-f .letter-badge      { background: rgba(239,68,68,0.15);  color: #f87171; }

.grade-pending { background: rgba(6,182,212,0.04); }
.pending-badge {
    background: rgba(6,182,212,0.12) !important;
    color: #22d3ee !important;
    font-size: 0.7rem !important;
    width: auto !important;
    padding: 4px 8px;
    white-space: nowrap;
}

.pending-note {
    grid-column: span 4;
    font-size: 0.8rem;
    color: #22d3ee !important;
    font-style: italic;
}

/* Pending explainer box */
.pending-explainer {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 14px 16px;
    background: rgba(6,182,212,0.06);
    border: 1px solid rgba(6,182,212,0.18);
    border-radius: 12px;
    font-size: 0.875rem;
}

.pending-explainer-icon {
    color: #22d3ee;
    flex-shrink: 0;
    margin-top: 2px;
}

.pending-explainer strong {
    display: block;
    color: var(--text-main);
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.pending-explainer p {
    color: var(--text-dim);
    margin: 0;
    line-height: 1.6;
}

/* Light mode letters */
[data-theme="light"] .letters-table     { border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .letters-table-head { background: rgba(0,0,0,0.04); }
[data-theme="light"] .letter-row        { border-top-color: rgba(0,0,0,0.05); }
[data-theme="light"] .letter-row:hover  { background: rgba(0,0,0,0.02); }
[data-theme="light"] .pending-explainer { background: rgba(14,165,233,0.06); border-color: rgba(14,165,233,0.2); }

/* Mobile */
/* International Converter */
.converter-section {
    padding: 40px 0 80px 0;
}

.converter-card {
    padding: 30px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
}

.converter-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 30px;
    align-items: center;
}

.converter-inputs {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.converter-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 20px;
    border: 1px dashed rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.conv-result-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.res-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
}

.res-value {
    font-size: 3rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    color: var(--brand-cyan);
    text-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
}

#letter-converted {
    color: #60a5fa;
}

.converter-info-box {
    margin-top: 30px;
    display: flex;
    gap: 15px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.6;
    align-items: center;
}

.info-icon {
    color: var(--brand-cyan);
    flex-shrink: 0;
}

/* Light Mode Overrides for Converter */
[data-theme="light"] .converter-card {
    background: white;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .converter-results {
    background: rgba(14, 165, 233, 0.04);
    border-color: rgba(14, 165, 233, 0.15);
}

[data-theme="light"] .converter-info-box {
    background: rgba(0, 0, 0, 0.02);
}

/* Mobile Responsiveness for Converter */
@media (max-width: 768px) {
    .converter-body {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .converter-results {
        padding: 20px;
    }
    
    .res-value {
        font-size: 2.5rem;
    }
}
@media (max-width: 600px) {
    .letter-row {
        grid-template-columns: 70px 1fr 1fr 60px;
    }
    /* Ocultar columnas HS en mobile */
    .letters-table-head span:nth-child(3),
    .letters-table-head span:nth-child(4),
    .letter-row span:nth-child(3),
    .letter-row span:nth-child(4) {
        display: none;
    }
    .pending-note { grid-column: span 3; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Max Possible GPA box in Predictor */
.max-possible-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px;
    animation: fadeIn 0.3s ease-out;
}

.max-possible-label {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.max-possible-val {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Outfit', sans-serif;
}