/**
 * Finanzrechner – Main Stylesheet
 * 
 * Minimal, responsive CSS with semantic structure.
 * No frameworks, no dependencies.
 */

/* ── Reset & Base ─────────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #1a73e8;
    --color-primary-dark: #1557b0;
    --color-secondary: #34a853;
    --color-text: #202124;
    --color-text-light: #5f6368;
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-border: #dadce0;
    --color-success: #34a853;
    --color-danger: #ea4335;
    --color-highlight: #fef7e0;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --max-width: 900px;
    --spacing: 1.5rem;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Container ────────────────────────────────────────────────────── */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing);
    width: 100%;
}

/* ── Header ───────────────────────────────────────────────────────── */
.site-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.site-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.site-logo:hover {
    color: var(--color-primary-dark);
}

/* Navigation */
.main-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: nowrap;
    gap: 0.1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.main-nav ul::-webkit-scrollbar {
    display: none;
}

.main-nav a {
    display: block;
    padding: 0.35rem 0.45rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.8rem;
    border-radius: 6px;
    transition: background 0.15s;
    white-space: nowrap;
}

.main-nav a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    transition: transform 0.2s;
}

@media (max-width: 1100px) {
    .nav-toggle {
        display: flex;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 0.5rem 0;
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        z-index: 200;
    }
    .main-nav.open {
        display: block;
    }
    .main-nav ul {
        flex-direction: column;
        overflow-x: visible;
        padding: 0 var(--spacing);
    }
    .main-nav a {
        padding: 0.75rem 0;
        font-size: 0.9rem;
    }
}

/* ── Main Content ─────────────────────────────────────────────────── */
.site-main {
    flex: 1;
    padding: 2rem 0;
}

/* ── Hero ──────────────────────────────────────────────────────────── */
.hero {
    text-align: center;
    padding: 2rem 0 1.5rem;
}

.hero h1 {
    font-size: 2rem;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ── Typography ───────────────────────────────────────────────────── */
h1 { font-size: 1.75rem; line-height: 1.3; margin-bottom: 1rem; }
h2 { font-size: 1.35rem; line-height: 1.4; margin: 2rem 0 0.75rem; }
h3 { font-size: 1.1rem; margin: 1.25rem 0 0.5rem; }

p { margin-bottom: 0.75rem; }

.intro {
    font-size: 1.05rem;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

/* ── Cards ────────────────────────────────────────────────────────── */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin-top: 1rem;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.5rem;
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.card h3 {
    margin-top: 0;
}

.card h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.card h3 a:hover {
    color: var(--color-primary);
}

.card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 0.65rem 1.25rem;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-bg-light);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: #e8eaed;
}

/* ── Forms ─────────────────────────────────────────────────────────── */
.calc-form {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1rem 0;
}

.calc-form--inline {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 1rem;
}

.calc-form--inline .form-group {
    flex: 1;
    min-width: 150px;
}

.calc-form--inline .btn {
    align-self: flex-end;
    margin-bottom: 2px;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.form-row .form-group {
    flex: 1;
    min-width: 180px;
}

.form-group {
    margin-bottom: 0.75rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--color-text);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: var(--font-sans);
    background: var(--color-bg);
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

/* ── Result Box ───────────────────────────────────────────────────── */
.result-box {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.result-box--highlight {
    background: var(--color-highlight);
    border-color: #f9d67a;
}

.result-box h2 {
    margin-top: 0;
    font-size: 1.2rem;
    color: var(--color-primary-dark);
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.result-table th,
.result-table td {
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
}

.result-table th {
    text-align: left;
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.result-row td {
    border-top: 2px solid var(--color-text);
    border-bottom: none;
    padding-top: 0.8rem;
    font-size: 1.05rem;
}

.text-right { text-align: right; }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }

.result-note {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

.result-link {
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.result-link a {
    color: var(--color-primary);
}

/* ── Salary Links ─────────────────────────────────────────────────── */
.salary-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.salary-link {
    display: inline-block;
    padding: 0.4rem 0.85rem;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.15s, border-color 0.15s;
}

.salary-link:hover,
.salary-link.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* ── SEO Content Sections ─────────────────────────────────────────── */
.seo-content {
    margin: 2rem 0;
    line-height: 1.8;
}

.seo-content ul {
    margin: 0.5rem 0 1rem 1.5rem;
}

.seo-content li {
    margin-bottom: 0.3rem;
}

/* ── FAQ ───────────────────────────────────────────────────────────── */
.faq {
    margin: 2rem 0;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h3 {
    margin-top: 0;
    color: var(--color-text);
}

.faq-item p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ── CTA Box ──────────────────────────────────────────────────────── */
.cta-box {
    background: var(--color-primary);
    color: #fff;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    margin: 2rem 0;
}

.cta-box h2 {
    color: #fff;
    margin-top: 0;
}

.cta-box p {
    opacity: 0.9;
}

.cta-box .btn-primary {
    background: #fff;
    color: var(--color-primary);
    margin-top: 0.5rem;
}

.cta-box .btn-primary:hover {
    background: #f8f9fa;
}

/* ── Legal Pages (Impressum, Datenschutz) ─────────────────────────── */
.legal-page {
    line-height: 1.8;
    padding-bottom: 2rem;
}

.legal-page h1 {
    margin-bottom: 1.5rem;
}

.legal-page h2 {
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border);
}

.legal-page h3 {
    margin-top: 1.25rem;
}

.legal-page ul {
    margin: 0.5rem 0 1rem 1.5rem;
}

.legal-page li {
    margin-bottom: 0.4rem;
}

.legal-page a {
    color: var(--color-primary);
    word-break: break-word;
}

/* ── Error Page ───────────────────────────────────────────────────── */
.error-page {
    text-align: center;
    padding: 3rem 0;
}

.error-page h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* ── Ad Slots (placeholder) ───────────────────────────────────────── */
.ad-slot, .ad-banner {
    display: block; /* AdSense placeholder – ready for launch */
    margin: 2rem 0;
    min-height: 90px;
    text-align: center;
}
.ad-placeholder {
    display: block; /* AdSense placeholder – replace with real ad code when approved */
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--color-bg-light);
    border: 1px dashed var(--color-border);
    border-radius: 6px;
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.8rem;
}

/* ── Breadcrumbs ──────────────────────────────────────────────────── */
.breadcrumbs {
    margin-bottom: 1.25rem;
}

.breadcrumbs ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0;
    margin: 0;
    font-size: 0.85rem;
}

.breadcrumbs li::after {
    content: '›';
    margin: 0 0.35rem;
    color: var(--color-text-light);
}

.breadcrumbs li:last-child::after {
    display: none;
}

.breadcrumbs a {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.breadcrumbs span {
    color: var(--color-text-light);
}

/* ── Yearly Details (collapsible) ─────────────────────────────────── */
.yearly-details {
    margin-top: 1rem;
}

.yearly-details summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--color-primary);
    padding: 0.5rem 0;
    font-size: 0.95rem;
}

.yearly-details summary:hover {
    color: var(--color-primary-dark);
}

.yearly-details[open] summary {
    margin-bottom: 0.5rem;
}

/* ── Internal Links Section ───────────────────────────────────────── */
.internal-links {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--color-bg-light);
    border-radius: 10px;
    border: 1px solid var(--color-border);
}

.internal-links h2 {
    margin-top: 0;
    font-size: 1.15rem;
}

/* ── Footer Enhancements ──────────────────────────────────────────── */
.footer-calculators,
.footer-salaries {
    margin-bottom: 1.25rem;
}

.footer-calculators h3,
.footer-salaries h3 {
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.footer-calc-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-calc-links a {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
    color: var(--color-text-light);
    text-decoration: none;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: color 0.15s, border-color 0.15s;
}

.footer-calc-links a:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}
/* ── Footer ───────────────────────────────────────────────────────── */
.site-footer {
    background: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-copy {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin: 0;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .hero h1 { font-size: 1.5rem; }
    h1 { font-size: 1.4rem; }
    h2 { font-size: 1.2rem; }

    .calc-form--inline {
        flex-direction: column;
        align-items: stretch;
    }

    .calc-form--inline .form-group {
        width: 100%;
    }

    .calc-form--inline .btn {
        align-self: stretch;
        width: 100%;
    }

    .form-row {
        flex-direction: column;
    }

    .result-table th,
    .result-table td {
        font-size: 0.85rem;
        padding: 0.5rem 0.25rem;
    }

    /* Hide AdSense placeholders on mobile */
    .ad-placeholder,
    .ad-slot,
    .ad-banner {
        display: none !important;
    }
}

/* ── Category Landing Pages ───────────────────────────────────────── */
.category-hero {
    text-align: center;
    padding: 2rem 0 1.5rem;
}

.category-hero h1 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.category-hero .intro {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

.calculator-grid {
    margin: 2rem 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.calculator-card {
    display: block;
    padding: 1.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    text-decoration: none;
    color: var(--color-text);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.calculator-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    border-color: var(--color-primary);
}

.calculator-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
    color: var(--color-primary-dark);
}

.calculator-card p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin: 0 0 0.5rem;
}

.calculator-card--compact {
    padding: 1rem;
}

.calculator-card--compact h3 {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.card-cta {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}

.category-links {
    margin: 2rem 0;
}

.category-links h2 {
    margin-bottom: 0.5rem;
}

/* ── 404 Page Enhancements ────────────────────────────────────────── */
.error-page {
    padding: 2rem 0 3rem;
}

.error-search {
    max-width: 500px;
    margin: 2rem auto;
    text-align: left;
}

.error-search h2 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    text-align: center;
}

.quick-calc-form .form-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0;
}

.quick-calc-form input {
    flex: 1;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: var(--font-sans);
}

.quick-calc-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.error-calculators {
    margin: 2rem 0;
    text-align: left;
}

.error-calculators h2 {
    text-align: center;
    margin-bottom: 0.75rem;
}

/* ══ Cookie Consent Banner ════════════════════════════════════════════ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.12);
    padding: 1.25rem;
}

.cookie-banner__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cookie-banner__text {
    flex: 1;
    min-width: 250px;
}

.cookie-banner__text p {
    margin: 0 0 0.25rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.cookie-banner__text p:first-child {
    color: var(--color-text);
    font-size: 0.95rem;
    margin-bottom: 0.35rem;
}

.cookie-banner__text a {
    color: var(--color-primary);
}

.cookie-banner__actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* ── Cookie Settings Modal ────────────────────────────────────────── */
.cookie-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cookie-modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
}

.cookie-modal__dialog {
    position: relative;
    background: var(--color-bg);
    border-radius: 12px;
    padding: 2rem;
    max-width: 520px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.cookie-modal__dialog h2 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
}

.cookie-modal__dialog > p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
}

.cookie-option {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--color-border);
}

.cookie-option__info {
    flex: 1;
}

.cookie-option__info strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.cookie-option__info p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--color-text-light);
}

/* Toggle Switch */
.cookie-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 0.15rem;
    cursor: pointer;
}

.cookie-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.cookie-toggle__slider {
    position: absolute;
    inset: 0;
    background: var(--color-border);
    border-radius: 24px;
    transition: background 0.2s;
}

.cookie-toggle__slider::before {
    content: '';
    position: absolute;
    bottom: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.2s;
}

.cookie-toggle input:checked + .cookie-toggle__slider {
    background: var(--color-primary);
}

.cookie-toggle input:checked + .cookie-toggle__slider::before {
    transform: translateX(20px);
}

.cookie-toggle--disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.cookie-modal__actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

@media (max-width: 600px) {
    .cookie-banner__inner {
        flex-direction: column;
        align-items: stretch;
    }
    .cookie-banner__actions {
        flex-direction: column;
    }
    .cookie-modal__actions {
        flex-direction: column;
    }
}

/* ── Print Styles ─────────────────────────────────────────────────── */
@media print {
    .site-header,
    .site-footer,
    .ad-placeholder,
    .breadcrumbs,
    .cookie-banner,
    .cookie-modal,
    .cta-box { display: none; }
    .result-box { border: 1px solid #000; }
}