/* Basic frontend styles for Edu Equation Solver - Batch 1 */

.eqs-container {
    max-width: 720px;
    margin: 1.5rem auto;
    padding: 0 1rem;
    box-sizing: border-box;
}

.eqs-card {
    background: #0f172a;
    color: #f9fafb;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 18px 35px rgba(15, 23, 42, 0.6);
    position: relative;
    overflow: hidden;
}

.eqs-card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    border: 1px solid rgba(148, 163, 184, 0.35);
}

.eqs-header {
    margin-bottom: 1.25rem;
}

.eqs-title {
    margin: 0 0 0.25rem;
    font-size: 1.35rem;
    font-weight: 600;
}

.eqs-subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: #cbd5f5;
}

.eqs-form {
    margin-bottom: 1.25rem;
}

.eqs-field-group {
    margin-bottom: 1rem;
}

.eqs-field-group--inline {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0.75rem;
}

.eqs-label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
    color: #e5e7eb;
}

.eqs-input,
.eqs-select {
    width: 100%;
    border-radius: 10px;
    border: 1px solid #1f2937;
    padding: 0.55rem 0.7rem;
    font-size: 0.92rem;
    background: #020617;
    color: #f9fafb;
    box-sizing: border-box;
}

#eqs-operation {
    color: #000000;
    background: #ffffff;
}


.eqs-input:focus,
.eqs-select:focus {
    outline: none;
    border-color: #38bdf8;
    box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.5);
}

.eqs-help {
    margin: 0.4rem 0 0;
    font-size: 0.78rem;
    color: #9ca3af;
}

.eqs-actions {
    display: flex;
    gap: 0.5rem;
}

.eqs-btn {
    border: none;
    border-radius: 999px;
    padding: 0.55rem 1.2rem;
    font-size: 0.88rem;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
    font-weight: 500;
}

.eqs-btn-primary {
    background: linear-gradient(135deg, #38bdf8, #6366f1);
    color: #0b1120;
    box-shadow: 0 10px 25px rgba(56, 189, 248, 0.45);
}

.eqs-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(56, 189, 248, 0.6);
}

.eqs-result {
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(148, 163, 184, 0.25);
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
}

.eqs-result-placeholder p {
    margin: 0.15rem 0;
}

.eqs-result-note {
    font-size: 0.78rem;
    color: #9ca3af;
}

/* Responsive tweaks */
@media (max-width: 600px) {
    .eqs-card {
        padding: 1.1rem 1rem;
        border-radius: 14px;
    }

    .eqs-title {
        font-size: 1.15rem;
    }

    .eqs-field-group--inline {
        align-items: stretch;
    }

    .eqs-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .eqs-btn {
        width: auto;
    }
}


.eqs-result-block {
    margin: 0.1rem 0;
}

.eqs-result-main {
    margin: 0.25rem 0;
}

.eqs-result-expression {
    margin: 0.15rem 0;
}

.eqs-result-block--error {
    border-left: 3px solid #f97373;
    padding-left: 0.5rem;
}


.eqs-result-block {
    margin: 0.1rem 0;
}

.eqs-result-main {
    margin: 0.25rem 0;
}

.eqs-result-expression {
    margin: 0.15rem 0;
}

.eqs-result-block--error {
    border-left: 3px solid #f97373;
    padding-left: 0.5rem;
}

.eqs-steps {
    margin-top: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px dashed rgba(148, 163, 184, 0.6);
}

.eqs-steps-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #e5e7eb;
}

.eqs-steps-list {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.82rem;
    color: #d1d5db;
}

.eqs-steps-item {
    margin: 0.15rem 0;
}


.eqs-result-block {
    margin: 0.1rem 0;
}

.eqs-result-main {
    margin: 0.25rem 0;
}

.eqs-result-expression {
    margin: 0.15rem 0;
}

.eqs-result-block--error {
    border-left: 3px solid #f97373;
    padding-left: 0.5rem;
}

.eqs-steps {
    margin-top: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px dashed rgba(148, 163, 184, 0.6);
}

.eqs-steps-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #e5e7eb;
}

.eqs-steps-list {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.82rem;
    color: #d1d5db;
}

.eqs-steps-item {
    margin: 0.15rem 0;
}


/* Chart container for graph mode */
.eqs-chart-wrap {
    margin-top: 1rem;
    height: 260px;
    max-width: 100%;
}

.eqs-chart-canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}