:root {
    --color-bg: #eef1ee;
    --color-surface: #ffffff;
    --color-ink: #1c2b27;
    --color-ink-soft: #4b5a55;
    --color-primary: #16342e;
    --color-primary-dark: #0f2521;
    --color-accent: #d99a34;
    --color-accent-dark: #c3852a;
    --color-border: #dfe4e0;
    --color-tax: #d97a34;
    --color-soli: #3a7d6a;
    --color-social: #7a8f89;
    --font-serif: Georgia, "Times New Roman", serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 32px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--color-primary);
    color: var(--color-accent);
    font-weight: 700;
}

.trust-badges {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.85rem;
    color: var(--color-ink-soft);
}

.page {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr) 160px;
    gap: 24px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 40px 24px 0;
}

.ad-slot {
    height: 600px;
    border: 1px dashed #c9d1cc;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    writing-mode: vertical-rl;
    color: #9aa5a0;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
}

.content { min-width: 0; }

.eyebrow {
    margin: 0 0 8px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent-dark);
}

h1 {
    font-family: var(--font-serif);
    font-size: 2.3rem;
    margin: 0 0 14px;
    color: var(--color-primary);
}

.intro {
    max-width: 620px;
    color: var(--color-ink-soft);
    line-height: 1.5;
    margin: 0 0 32px;
}

.calculator {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    background: var(--color-surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(20, 40, 35, 0.08);
}

.calculator-form {
    padding: 28px 32px 32px;
}

.form-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 20px;
}

.form-head h2 {
    margin: 0;
    font-size: 1.15rem;
}

.required-hint {
    font-size: 0.78rem;
    color: var(--color-ink-soft);
}

.field { margin-bottom: 18px; }

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-ink);
}

input[type="number"],
select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--color-surface);
    color: var(--color-ink);
}

input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.input-suffix {
    position: relative;
    display: flex;
    align-items: center;
}

.input-suffix input { padding-right: 34px; }

.input-suffix span {
    position: absolute;
    right: 12px;
    color: var(--color-ink-soft);
    font-size: 0.9rem;
}

.checkbox-field {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    margin: 4px 0 22px;
    cursor: pointer;
}

.checkbox-field input { width: auto; margin: 0; }

.calculate-button {
    width: 100%;
    padding: 13px 16px;
    border: none;
    border-radius: 6px;
    background: var(--color-accent);
    color: #2a1c04;
    font-size: 0.98rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease;
}

.calculate-button:hover { background: var(--color-accent-dark); }

.result-panel {
    background: var(--color-primary);
    color: #eef4f1;
    padding: 28px 30px 26px;
    display: flex;
    flex-direction: column;
}

.result-label {
    margin: 0 0 8px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #a9c1b8;
}

.result-amount {
    margin: 0;
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.1;
}

.result-period {
    margin: 2px 0 20px;
    color: #a9c1b8;
    font-size: 0.85rem;
}

.result-ratio-head {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: #cfe0d9;
    margin-bottom: 6px;
}

.ratio-bar {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.15);
    overflow: hidden;
    margin-bottom: 20px;
}

.ratio-bar-fill {
    height: 100%;
    background: var(--color-accent);
    border-radius: 3px;
    transition: width 0.2s ease;
}

.breakdown {
    list-style: none;
    margin: 0 0 16px;
    padding: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 16px;
}

.breakdown li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
    font-size: 0.88rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex: none;
}

.dot-tax { background: var(--color-tax); }
.dot-soli { background: var(--color-soli); }
.dot-social { background: var(--color-social); }

.breakdown-label { flex: 1; color: #cfe0d9; }
.breakdown-value { font-weight: 600; }

.result-totals {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 14px;
    margin-bottom: 18px;
}

.result-totals-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 0.9rem;
    font-weight: 600;
}

.result-disclaimer {
    margin: 0;
    font-size: 0.74rem;
    line-height: 1.4;
    color: #93aba2;
}

.info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 28px 0 40px;
}

.info-card {
    background: var(--color-surface);
    border-radius: 10px;
    padding: 22px 24px;
    border: 1px solid var(--color-border);
}

.info-card h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.info-card p {
    margin: 0;
    color: var(--color-ink-soft);
    font-size: 0.9rem;
    line-height: 1.5;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    max-width: 1240px;
    margin: 0 auto;
    padding: 20px 24px 40px;
    font-size: 0.8rem;
    color: var(--color-ink-soft);
}

.site-footer nav a {
    color: var(--color-ink-soft);
    text-decoration: none;
    margin: 0 4px;
}

.site-footer nav a:hover { text-decoration: underline; }

@media (max-width: 1080px) {
    .page { grid-template-columns: minmax(0, 1fr); }
    .ad-slot { display: none; }
}

@media (max-width: 720px) {
    .calculator { grid-template-columns: 1fr; }
    .field-row { grid-template-columns: 1fr; }
    .info-cards { grid-template-columns: 1fr; }
    .site-header { flex-direction: column; gap: 10px; align-items: flex-start; }
}