/* ============================================
   CSS for Fitnessstudio Grundriss Article
   Design template: dabonline.de
   ============================================ */

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

:root {
    --color-black: #1a1a1a;
    --color-dark: #333333;
    --color-body: #444444;
    --color-gray: #767676;
    --color-light-gray: #b0b0b0;
    --color-border: #e0e0e0;
    --color-bg-light: #f5f5f5;
    --color-white: #ffffff;
    --color-accent: #c8102e;
    --color-accent-hover: #a00d24;
    --color-link: #1a1a1a;
    --color-link-hover: #c8102e;
    --color-footer-bg: #1a1a1a;
    --color-footer-text: #cccccc;
    --color-tag-bg: #f0f0f0;
    --color-tag-text: #555555;
    --color-newsletter-bg: #f5f5f5;
    --color-cta-bg: #c8102e;
    --color-cta-text: #ffffff;
    --font-primary: "Georgia", "Times New Roman", Times, serif;
    --font-secondary: "Helvetica Neue", Helvetica, Arial, sans-serif;
    --max-width: 780px;
    --max-width-wide: 1100px;
    --header-height: 64px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    color: var(--color-body);
    background-color: var(--color-white);
    line-height: 1.7;
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-link-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
}

/* Hamburger */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1010;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-black);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    height: 100vh;
    background: var(--color-white);
    z-index: 1005;
    overflow-y: auto;
    transition: left 0.3s ease;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
    padding-top: calc(var(--header-height) + 16px);
}

.main-nav.is-open {
    left: 0;
}

.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1004;
}

.nav-overlay.is-visible {
    display: block;
}

.nav-list {
    list-style: none;
}

.nav-item {
    border-bottom: 1px solid var(--color-border);
}

.nav-link {
    display: block;
    padding: 14px 24px;
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-black);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.nav-link:hover {
    color: var(--color-accent);
    background: var(--color-bg-light);
}

.dropdown {
    list-style: none;
    display: none;
    background: var(--color-bg-light);
}

.dropdown.is-open {
    display: block;
}

.dropdown li a {
    display: block;
    padding: 10px 24px 10px 40px;
    font-family: var(--font-secondary);
    font-size: 0.88rem;
    color: var(--color-dark);
}

.dropdown li a:hover {
    color: var(--color-accent);
}

.sub-dropdown {
    background: var(--color-white);
}

.sub-dropdown li a {
    padding-left: 56px;
}

/* Logo */
.site-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    line-height: 1.2;
}

.logo-text {
    font-family: var(--font-secondary);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.logo-description {
    font-family: var(--font-secondary);
    font-size: 0.65rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* Header CTA */
.header-cta {
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.header-cta:hover {
    color: var(--color-accent-hover);
}

/* --- Breadcrumb --- */
.breadcrumb {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px 24px 0;
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    gap: 8px;
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    color: var(--color-gray);
}

.breadcrumb li::after {
    content: ">";
    margin-left: 8px;
    color: var(--color-light-gray);
}

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

.breadcrumb a {
    color: var(--color-gray);
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

/* --- Article Container --- */
.article-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px 60px;
}

/* --- Article Header --- */
.article-header {
    margin-bottom: 32px;
}

.article-title {
    font-family: var(--font-primary);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.25;
    margin: 16px 0 12px;
}

.article-subtitle {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--color-gray);
    line-height: 1.5;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: var(--font-secondary);
    font-size: 0.82rem;
    color: var(--color-gray);
    margin-bottom: 16px;
}

.meta-date {
    color: var(--color-gray);
}

.meta-readtime {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--color-bg-light);
    padding: 2px 10px;
    border-radius: 3px;
    font-weight: 500;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.article-tag {
    font-family: var(--font-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-tag-text);
    background: var(--color-tag-bg);
    padding: 4px 12px;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.article-tag:hover {
    background: var(--color-border);
    color: var(--color-black);
}

/* --- Image Gallery --- */
.image-gallery {
    margin: 32px 0;
    position: relative;
}

.gallery-wrapper {
    position: relative;
    background: var(--color-bg-light);
    border-radius: 2px;
    overflow: hidden;
}

.gallery-wrapper img {
    width: 100%;
    display: block;
}

.gallery-image-placeholder {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    text-align: center;
    border: 2px dashed var(--color-border);
}

.gallery-image-placeholder .prompt-text {
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    color: var(--color-gray);
    line-height: 1.6;
    max-width: 500px;
}

.gallery-image-placeholder .prompt-label {
    display: block;
    font-weight: 700;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: background 0.2s ease;
    z-index: 2;
}

.gallery-nav:hover {
    background: var(--color-white);
}

.gallery-nav--prev {
    left: 12px;
}

.gallery-nav--next {
    right: 12px;
}

.gallery-caption {
    padding: 12px 0;
    font-family: var(--font-secondary);
    font-size: 0.82rem;
    color: var(--color-gray);
    line-height: 1.5;
}

.gallery-indicator {
    font-family: var(--font-secondary);
    font-size: 0.75rem;
    color: var(--color-light-gray);
    margin-top: 4px;
}

/* --- Article Body --- */
.article-body h2 {
    font-family: var(--font-primary);
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.3;
    margin: 40px 0 16px;
}

.article-body h3 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.35;
    margin: 32px 0 12px;
}

.article-body p {
    margin-bottom: 18px;
    font-size: 1.05rem;
    line-height: 1.75;
}

.article-body ul,
.article-body ol {
    margin: 0 0 18px 24px;
    font-size: 1.05rem;
    line-height: 1.75;
}

.article-body li {
    margin-bottom: 6px;
}

.article-body strong {
    color: var(--color-dark);
}

/* --- Pull Quote --- */
.pull-quote {
    margin: 36px 0;
    padding: 24px 0 24px 24px;
    border-left: 4px solid var(--color-accent);
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-dark);
    line-height: 1.6;
}

.pull-quote cite {
    display: block;
    margin-top: 12px;
    font-size: 0.88rem;
    font-style: normal;
    font-family: var(--font-secondary);
    color: var(--color-gray);
}

/* --- CTA Box --- */
.cta-box {
    margin: 40px 0;
    padding: 28px 32px;
    background: var(--color-accent);
    border-radius: 4px;
    text-align: center;
}

.cta-box a {
    font-family: var(--font-secondary);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-cta-text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.cta-box a:hover {
    color: var(--color-white);
    opacity: 0.9;
}

.cta-box a svg {
    transition: transform 0.2s ease;
}

.cta-box a:hover svg {
    transform: translateX(4px);
}

/* --- Newsletter Section --- */
.newsletter-section {
    max-width: var(--max-width);
    margin: 48px auto;
    padding: 0 24px;
}

.newsletter-box {
    background: var(--color-newsletter-bg);
    padding: 36px 32px;
    border-radius: 4px;
    text-align: center;
}

.newsletter-box h3 {
    font-family: var(--font-secondary);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 4px;
}

.newsletter-box .newsletter-subtitle {
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    color: var(--color-gray);
    margin-bottom: 20px;
}

.newsletter-form {
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-form .form-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.newsletter-form input[type="email"] {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.newsletter-form input[type="email"]:focus {
    border-color: var(--color-accent);
}

.newsletter-form input[type="email"]::placeholder {
    color: var(--color-light-gray);
}

.newsletter-form button[type="submit"] {
    padding: 10px 24px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 3px;
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
    white-space: nowrap;
}

.newsletter-form button[type="submit"]:hover {
    background: var(--color-accent-hover);
}

.newsletter-form .consent-text {
    font-family: var(--font-secondary);
    font-size: 0.72rem;
    color: var(--color-gray);
    line-height: 1.5;
    text-align: left;
}

.newsletter-form .consent-text label {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    cursor: pointer;
}

.newsletter-form .consent-text input[type="checkbox"] {
    margin-top: 3px;
    flex-shrink: 0;
}

/* --- Info Box / Table-like content --- */
.info-box {
    margin: 32px 0;
    background: var(--color-bg-light);
    border-radius: 4px;
    padding: 24px 28px;
    border-left: 4px solid var(--color-accent);
}

.info-box h4 {
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-secondary);
    font-size: 0.9rem;
}

.info-table th,
.info-table td {
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.info-table th {
    font-weight: 600;
    color: var(--color-black);
    background: rgba(0, 0, 0, 0.03);
}

.info-table td {
    color: var(--color-body);
}

.info-table tr:last-child td {
    border-bottom: none;
}

/* --- Footer --- */
.site-footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 48px 0 0;
}

.footer-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 24px;
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding-bottom: 36px;
}

.footer-col h4 {
    font-family: var(--font-secondary);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-white);
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col a {
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    color: var(--color-footer-text);
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--color-white);
}

.social-list li a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.social-list li a svg {
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.social-list li a:hover svg {
    opacity: 1;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-family: var(--font-secondary);
    font-size: 0.78rem;
}

.copyright {
    color: var(--color-footer-text);
    opacity: 0.7;
}

.footer-legal {
    list-style: none;
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: var(--color-footer-text);
    opacity: 0.7;
    font-size: 0.78rem;
}

.footer-legal a:hover {
    opacity: 1;
    color: var(--color-white);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .article-title {
        font-size: 1.9rem;
    }

    .article-body h2 {
        font-size: 1.4rem;
    }

    .footer-columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    :root {
        --header-height: 56px;
    }

    .article-container {
        padding: 0 16px 40px;
    }

    .article-title {
        font-size: 1.6rem;
    }

    .article-subtitle {
        font-size: 1.05rem;
    }

    .article-meta {
        flex-wrap: wrap;
        gap: 8px;
    }

    .article-body h2 {
        font-size: 1.25rem;
    }

    .article-body h3 {
        font-size: 1.1rem;
    }

    .article-body p {
        font-size: 1rem;
    }

    .pull-quote {
        font-size: 1.1rem;
        margin: 24px 0;
        padding-left: 16px;
    }

    .cta-box {
        padding: 20px;
    }

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

    .footer-columns {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
    }

    .header-cta {
        display: none;
    }

    .gallery-nav {
        width: 32px;
        height: 32px;
    }

    .info-table {
        font-size: 0.82rem;
    }

    .info-table th,
    .info-table td {
        padding: 8px 10px;
    }
}

/* --- Utility --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}