* {
    box-sizing: border-box;
}

:root {
    --bg: #f5f1e8;
    --card: #ffffff;
    --ink: #172231;
    --muted: #4f5f6f;
    --teal: #1f6f73;
    --teal-dark: #18585b;
    --border: rgba(23, 34, 49, 0.14);
    --shadow: 0 10px 26px rgba(23, 34, 49, 0.08);
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--ink);
}

.container {
    width: min(900px, calc(100% - 40px));
    margin: 0 auto;
    padding: 12px 0 36px;
}

.site-header {
    text-align: center;
    margin: 0 0 6px;
}

.site-logo {
    display: block;
    width: 170px;
    max-width: 50vw;
    height: auto;
    margin: 0 auto;
}

.hero {
    text-align: center;
    margin: 0 auto 18px;
}

.hero-text {
    margin: 0;
    color: var(--teal);
    font-size: clamp(18px, 2.5vw, 23px);
    font-weight: 700;
    line-height: 1.25;
}

.card,
.privacy,
.trust-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.card {
    padding: 22px;
    margin: 0 0 22px;
}

.card-intro {
    margin: 0 0 20px;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.4;
    text-align: center;
}

.range-label {
    display: block;
    margin: 0 0 20px;
    font-size: 18px;
}

.range-label span {
    display: block;
    margin-bottom: 10px;
}

#lengthValue {
    display: inline-block;
    min-width: 42px;
    padding: 5px 10px;
    margin-left: 6px;
    background: #e8f1ef;
    color: var(--ink);
    border-radius: 8px;
    text-align: center;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--teal);
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 22px 0;
}

.options-grid label {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 52px;
    margin: 0;
    padding: 14px;
    background: #fbfaf7;
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 16px;
}

.options-grid .wide {
    grid-column: 1 / -1;
}

input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--teal);
}

button {
    border: none;
    border-radius: 12px;
    padding: 13px 18px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
}

.primary-btn {
    width: 100%;
    background: var(--teal);
    color: #ffffff;
    margin-top: 2px;
}

.primary-btn:hover,
#copyBtn:hover {
    background: var(--teal-dark);
}

.output-wrap {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

#passwordOutput {
    flex: 1;
    min-width: 0;
    padding: 14px;
    font-size: 18px;
    border-radius: 12px;
    border: 1px solid rgba(23, 34, 49, 0.25);
    color: var(--ink);
    background: #ffffff;
}

#copyBtn {
    min-width: 90px;
    background: var(--teal);
    color: #ffffff;
}

.strength {
    margin: 16px 0 0;
    font-weight: 700;
    color: var(--ink);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 0 0 22px;
}

.trust-card {
    padding: 20px;
}

.trust-card h3 {
    margin: 0 0 8px;
    color: var(--ink);
    font-size: 19px;
}

.trust-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.45;
}

.privacy {
    padding: 24px;
    margin: 0 0 28px;
}

.privacy h2 {
    margin: 0 0 8px;
    color: var(--ink);
    font-size: 24px;
}

.privacy p {
    margin: 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.6;
}

.site-footer {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px 30px;
    color: var(--muted);
    text-align: center;
    font-size: 14px;
}

@media (max-width: 700px) {
    .container {
        width: min(100% - 28px, 900px);
        padding-top: 10px;
    }

    .site-logo {
        width: 145px;
        max-width: 58vw;
    }

    .hero {
        margin-bottom: 16px;
    }

    .card {
        padding: 18px;
    }

    .options-grid,
    .trust-grid {
        grid-template-columns: 1fr;
    }

    .output-wrap {
        flex-direction: column;
    }

    #copyBtn {
        width: 100%;
    }
}

.multiple-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#passwordCount {
    width: 80px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 16px;
}