/* ╔════════════════════════════════════════════════════════════╗
   ║  Tử Vi Page — Form & Modal styles (uses shared_theme vars) ║
   ╚════════════════════════════════════════════════════════════╝ */

/* ── Form Section (inside .viz-section) ── */
.form-section {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 3px;
}

.form-group input,
.form-group select {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: border-color .2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* ── Calendar Toggle ── */
.calendar-toggle {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.calendar-toggle button {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: all .2s;
}

.calendar-toggle button.active {
    background: var(--accent-gold);
    color: var(--bg-primary);
    border-color: var(--accent-gold);
    font-weight: 600;
}

/* ── Submit Button ── */
.btn-calculate {
    width: 100%;
    padding: 12px;
    background: var(--accent-blue);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-body);
    transition: background .2s, transform .1s;
}

.btn-calculate:hover {
    background: #29B6F6;
}

.btn-calculate:active {
    transform: scale(.97);
}

/* ── Leap Month ── */
.leap-month {
    display: none;
    align-items: center;
    gap: 5px;
}

.leap-month.show {
    display: flex;
}

/* ── Loading ── */
.loading {
    display: none;
    text-align: center;
    padding: 50px;
    color: var(--text-muted);
}

.loading.show {
    display: block;
}

#results {
    display: none;
}

#results.show {
    display: block;
}

/* ── Modal ── */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.modal-content {
    background-color: var(--bg-secondary);
    margin: 10% auto;
    padding: 20px;
    border: 1px solid var(--border-color);
    width: 80%;
    border-radius: var(--radius-lg);
    position: relative;
    box-shadow: var(--shadow-hover);
    color: var(--text-primary);
}

.close {
    color: var(--text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-content {
        width: 95%;
        margin: 5% auto;
    }
}