* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    background: #f3f0ea;
    color: #252525;
    font-family: Arial, Helvetica, sans-serif;
}

.quote-app {
    width: min(1100px, 90%);
    margin: 0 auto;
    padding: 70px 0;
}

.app-header {
    padding: 55px;
    background: #18252b;
    color: #ffffff;
    border-radius: 18px 18px 0 0;
}

.app-header > p:first-child {
    margin-bottom: 18px;
    color: #d9a85f;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
}

.app-header h1 {
    max-width: 650px;
    font-size: clamp(42px, 6vw, 72px);
    line-height: .95;
    letter-spacing: -3px;
}

.app-header > p:last-child {
    max-width: 500px;
    margin-top: 24px;
    color: #c8d0d3;
    line-height: 1.7;
}

.quote-builder {
    padding: 45px 55px 55px;
    background: #ffffff;
    border-radius: 0 0 18px 18px;
}

.quote-builder label {
    display: block;
    margin: 24px 0 9px;
    font-size: 13px;
    font-weight: 700;
}

.quote-builder select,
.quote-builder input[type="number"] {
    width: 100%;
    padding: 15px 16px;
    border: 1px solid #d7d7d7;
    border-radius: 8px;
    background: #fafafa;
    font-size: 16px;
}

#calculate-btn {
    width: 100%;
    margin-top: 30px;
    padding: 17px 24px;
    border: 0;
    border-radius: 8px;
    background: #18252b;
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

#calculate-btn:hover {
    background:#3f8065;
}

#reset-btn {
    width: 100%;
    margin-top: 10px;
    padding: 15px 24px;
    border: 1px solid #18252b;
    border-radius: 8px;
    background: #d99a3e;
color: #18252b;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

.quote-result {
    margin-top: 30px;
    padding: 28px;
    background:#e3eee8;
    border-left: 5px solid #3f8065;
    border-radius: 8px;
    line-height: 1.7;
}

.quote-result strong {
    display: block;
    margin-top: 14px;
    color: #1f5a47;
    font-size: 26px;
    font-weight: 800;
}

.quote-note {
    margin-top: 14px;
    color: #777777;
    font-size: 12px;
    line-height: 1.6;
}

@media (max-width: 600px) {
    .quote-app {
        width: 92%;
        padding: 30px 0;
    }

    .app-header,
    .quote-builder {
        padding: 30px 24px;
    }

    .app-header h1 {
        font-size: 42px;
        letter-spacing: -2px;
    }
}