:root {
    --page: #00204a;
    --navy: #081c38;
    --ink: #0f172a;
    --gold: #c7a85d;
    --gold-700: #b2904c;
    --white: #ffffff;
    --ring: 0 0 0 4px rgba(199, 168, 93, 0.25);
    --radius: 16px;
    --green: #16a34a;
    --red: #991b1b;
    --muted: #6b7280;
}

* {
    box-sizing: border-box;
}

html,
body {
    /*height: 100%;*/
}

body {
    margin: 0;
    font-family:
        "Montserrat",
        /*"Poppins",
        system-ui,
        -apple-system,
        Segoe UI,
        Roboto,
        Helvetica,
        Arial,*/
            sans-serif;
    /*background: var(--page);
    color: var(--ink);*/
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.app {
    max-width: 1040px;
    margin: 32px auto 80px;
    padding: 0 20px;
}

.hero {
    background: linear-gradient(180deg, #0b2c66 0%, #061c43 100%);
    color: var(--white);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero h2 {
    color: var(--white);
    margin: 0 0 6px;
    font-size: clamp(24px, 4vw, 34px);
    line-height: 1.2;
}

.hero p {
    margin: 0;
    color: #d5dfee;
    font-size: clamp(14px, 2.5vw, 16px);
}

.grid {
    display: grid;
    gap: 18px;
    margin-top: 18px;
    grid-template-columns: repeat(12, 1fr);
}

.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 4px 18px rgba(2, 8, 23, 0.06);
}

.inputs {
    grid-column: span 7;
}

.results {
    grid-column: span 5;
}

@media (max-width: 900px) {
    .inputs,
    .results {
        grid-column: 1 / -1;
    }
}

.field {
    margin-bottom: 16px;
}

.field label {
    display: block;
    font-size: 14px;
    color: #334155;
    margin-bottom: 8px;
    font-weight: 600;
}

.input {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    padding: 12px 14px;
    outline: none;
    transition: 0.2s;
}

.input:focus-within {
    box-shadow: var(--ring);
    border-color: var(--gold);
}

.input input {
    width: 100%;
    border: 0;
    outline: 0;
    font-size: 16px;
    color: var(--ink);
    background: transparent;
}

.help {
    font-size: 12px;
    color: var(--muted);
    margin-top: 6px;
}

.row {
    display: flex;
    gap: 12px;
}

.row .field {
    flex: 1;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 14px;
    padding: 12px 18px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: 0.2s;
    user-select: none;
}

.btn-primary {
    background: var(--gold);
    color: var(--navy);
}

.btn-primary:hover {
    background: var(--gold-700);
}

.btn-ghost {
    background: #fff;
    border-color: #e5e7eb;
    color: #0f172a;
}

.btn-ghost:hover {
    box-shadow: var(--ring);
}

.btn-row {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    flex-wrap: wrap;
}