/* style.css for encadrer_reel */

/* Styles communs */
.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.375rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    cursor: pointer;
}
.primary-btn {
    color: #fff;
    background-color: #4F46E5;
    border-color: #4F46E5;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}
.primary-btn:hover {
    background-color: #4338CA;
    border-color: #4338CA;
}
.secondary-btn {
    color: #111827;
    background-color: #E5E7EB;
    border-color: #E5E7EB;
}
.secondary-btn:hover {
    background-color: #D1D5DB;
    border-color: #D1D5DB;
}

/* Container de l'exercice */
.card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.math-display {
    font-size: 1.8rem;
    text-align: center;
    margin: 15px 0;
    min-height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Zone d'entrée de l'encadrement */
.encadrement-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 15px 0;
    flex-wrap: wrap;
}

.math-input {
    border: 2px solid #D1D5DB;
    border-radius: 8px;
    padding: 8px;
    font-size: 1rem;
    text-align: center;
    transition: border-color 0.2s;
    outline: none;
    background-color: #F9FAFB;
}
.math-input:focus {
    border-color: #4F46E5;
    background-color: white;
}
.input-medium {
    width: 130px;
}
.input-operator {
    width: 50px;
    cursor: pointer;
    background-color: #E5E7EB;
    color: #111827;
}
.input-operator:hover {
    background-color: #D1D5DB;
}

.operator {
    font-size: 1.5rem;
    font-weight: bold;
    color: #374151;
}

/* Calculatrice intégrée */
.calc-toggle-btn {
    background-color: #10B981;
    color: white;
    border-radius: 8px;
    padding: 8px 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
    transition: background-color 0.2s;
}
.calc-toggle-btn:hover {
    background-color: #059669;
}

.calculator-container {
    background: #1F2937;
    border-radius: 12px;
    padding: 8px;
    width: 100%;
    max-width: 250px;
    margin: 15px auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.calc-display {
    background: #d1d5db;
    border-radius: 6px;
    padding: 10px;
    text-align: right;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    min-height: 35px;
    word-break: break-all;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.calc-expression {
    font-size: 1rem;
    color: #4B5563;
    min-height: 1.2rem;
}
.calc-result {
    font-size: 0.9rem;
    color: #111827;
    font-weight: bold;
}
.calc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}
.calc-btn {
    background: #374151;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 6px 0;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.1s;
}
.calc-btn:hover {
    background: #4B5563;
}
.calc-btn:active {
    background: #6B7280;
}
.calc-btn.op-btn {
    background: #F59E0B;
}
.calc-btn.op-btn:hover {
    background: #D97706;
}
.calc-btn.action-btn {
    background: #EF4444;
}
.calc-btn.action-btn:hover {
    background: #DC2626;
}
.calc-btn.eval-btn {
    background: #10B981;
    grid-column: span 2;
}
.calc-btn.eval-btn:hover {
    background: #059669;
}

/* Feedback */
.feedback {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    border-radius: 8px;
    margin-top: 15px;
    font-weight: 600;
}
.feedback.success {
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #34D399;
}
.feedback.error {
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #F87171;
}
.feedback #feedback-icon {
    font-size: 1.5rem;
    margin-right: 10px;
}
.hidden {
    display: none !important;
}

/* Vitual keyboard for inputs (if any) */
.virtual-keyboard {
    width: 100%;
    max-width: 600px;
    gap: 4px;
    padding: 5px;
    margin: 5px auto;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}
.vk-btn {
    padding: 8px 0;
    font-size: 0.9rem;
    background-color: #E5E7EB;
    border: 1px solid #D1D5DB;
    border-radius: 4px;
    cursor: pointer;
}
.vk-btn:hover { background-color: #D1D5DB; }
.vk-del { background-color: #FEE2E2; border-color: #F87171; color: #991B1B; }
.vk-del:hover { background-color: #FCA5A5; }