:root {
    --wood-dark: #4a2f1c;
    --wood: #7a4b28;
    --wood-light: #c99a5b;
    --beige: #f4ecdf;
    --green: #5c7a4f;
    --text: #2b2016;
    --border: #ddccb0;
    --white: #ffffff;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--text);
    background: var(--beige);
    line-height: 1.5;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    background: var(--wood-dark);
    color: var(--white);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    flex-wrap: wrap;
    gap: 12px;
}
.logo {
    font-weight: 800;
    letter-spacing: 1px;
    font-size: 1.3rem;
}
.logo span { color: var(--wood-light); }
.main-nav a {
    color: var(--white);
    text-decoration: none;
    margin-left: 24px;
    font-weight: 600;
}
.main-nav a:hover { color: var(--wood-light); }

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--wood) 0%, var(--wood-dark) 100%);
    color: var(--white);
    padding: 56px 0;
}
.hero h1 {
    font-size: 2.2rem;
    margin: 0 0 12px;
}
.hero p {
    max-width: 640px;
    font-size: 1.05rem;
    opacity: 0.95;
}
.trust-badges {
    margin-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.badge {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.3);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* Calculator */
.calculator-section { padding: 48px 0; }
.calculator-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    max-width: 640px;
    margin: -70px auto 0;
    box-shadow: 0 12px 30px rgba(74,47,28,0.15);
    position: relative;
}
.calculator-card h2 { margin-top: 0; color: var(--wood-dark); }
.calculator-hint { color: #6b5a45; margin-top: -8px; }

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.form-field { flex: 1 1 140px; }
.form-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
}
.form-field input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
}
.form-field input:focus {
    outline: none;
    border-color: var(--wood);
}

#calc-submit {
    background: var(--wood);
    color: var(--white);
    border: none;
    padding: 12px 28px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}
#calc-submit:hover { background: var(--wood-dark); }
#calc-submit:disabled { opacity: 0.6; cursor: default; }

.calc-error {
    margin-top: 16px;
    background: #fbe4e4;
    border: 1px solid #e6a5a5;
    color: #8a2c2c;
    padding: 10px 14px;
    border-radius: 6px;
}

.calc-result {
    margin-top: 24px;
    border-top: 2px solid var(--border);
    padding-top: 16px;
}
.result-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
}
.result-total {
    font-size: 1.3rem;
    color: var(--wood-dark);
    border-top: 1px solid var(--border);
    margin-top: 8px;
    padding-top: 12px;
}

/* Services */
.services { padding: 48px 0 64px; }
.services h2 { text-align: center; color: var(--wood-dark); }
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 28px;
}
.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 22px;
}
.service-card h3 { color: var(--wood); margin-top: 0; }

/* Footer */
.site-footer {
    background: var(--wood-dark);
    color: var(--white);
    padding: 28px 0;
    margin-top: 40px;
}
.footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-between;
    font-size: 0.9rem;
}
.footer-inner a { color: var(--wood-light); }

@media (max-width: 640px) {
    .calculator-card { margin-top: -40px; padding: 22px; }
    .hero h1 { font-size: 1.6rem; }
}