/* HERO */
.tool-hero {
    padding: 90px 20px 70px;
    background: linear-gradient(135deg, #0d6efd, #6ea8fe);
    color: white;
    border-radius: 0 0 45px 45px;
}

.tool-title {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -1px;
}

.tool-subtitle {
    opacity: 0.9;
    margin-top: 10px;
    font-size: 16px;
}

/* TOOL WRAPPER */
.tool-section {
    margin-top: -40px;
}

/* CARD */
.tool-card-modern {
    max-width: 540px;
    margin: auto;
    background: white;
    border-radius: 18px;
    padding: 30px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.12);
}

/* HEADER */
.tool-card-header h3 {
    font-weight: 700;
    margin-bottom: 5px;
}

.tool-card-header p {
    color: #6c757d;
    font-size: 14px;
}

/* FORM */
.tool-form {
    margin-top: 20px;
}

.form-group {
    margin-bottom: 15px;
}

    .form-group label {
        font-size: 13px;
        color: #555;
        margin-bottom: 5px;
        display: block;
    }

.tool-form input {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid #e5e5e5;
    outline: none;
    transition: 0.2s;
    font-size: 15px;
}

    .tool-form input:focus {
        border-color: #0d6efd;
        box-shadow: 0 0 0 3px rgba(13,110,253,0.15);
    }

/* BUTTON */
.tool-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: #0d6efd;
    color: white;
    font-weight: 600;
    transition: 0.2s;
}

    .tool-btn:hover {
        background: #0b5ed7;
        transform: translateY(-1px);
    }

/* RESULT */
.result-box {
    margin-top: 20px;
    padding: 20px;
    border-radius: 14px;
    background: #f6f8ff;
    text-align: center;
}

.result-text {
    font-size: 14px;
    color: #666;
}

.result-value {
    font-size: 30px;
    font-weight: 800;
    color: #0d6efd;
    margin-top: 5px;
}

.result-desc {
    font-size: 13px;
    color: #666;
    margin-top: 5px;
}

.result-extra {
    margin-top: 10px;
    font-size: 14px;
}

/* INFO */
.info-section {
    margin-top: 60px;
    padding-bottom: 60px;
}

.info-card {
    max-width: 700px;
    margin: auto;
    background: #fff;
    padding: 25px;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

.formula {
    background: #f1f3f9;
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    margin: 10px 0;
}
.result-box {
    margin-top: 20px;
    padding: 20px;
    border-radius: 14px;
    background: #f8f9ff;
    text-align: center;
    transition: 0.3s;
}

.result-value {
    font-size: 32px;
    font-weight: 800;
    color: #0d6efd;
}

.result-extra {
    margin-top: 10px;
    font-size: 14px;
    color: #444;
}