/* Kassel Inklusiv - Site Styles */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors */
    --color-primary: #2464A5;
    --color-primary-dark: #2E4F80;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-light: #EFEFEF;
    --color-gray-border: #CCCCCC;
    --color-header-bg: rgba(255, 255, 255, 0.77);

    /* Typography */
    --font-family: 'PT Sans', sans-serif;

    /* Font Sizes */
    --font-size-h1: 48px;
    --font-size-h3: 32px;
    --font-size-h5: 24px;
    --font-size-body-l: 22px;
    --font-size-body-m: 20px;
    --font-size-body-s: 14px;

    /* Line Heights */
    --line-height-h1: 1.2;
    --line-height-h3: 1.6;
    --line-height-h5: 1.6;
    --line-height-body: 1.7;
    --line-height-body-s: 1.6;

    /* Spacing */
    --header-height: 128px;
    --header-padding-x: 96px;
    --header-padding-y: 17px;
    --nav-width: 460px;
    --content-max-width: 1170px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    font-size: var(--font-size-body-m);
    line-height: var(--line-height-body);
    color: var(--color-black);
    background-color: var(--color-white);
    overflow-x: hidden; /* Prevent horizontal scroll from full-width elements */
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px 16px;
    z-index: 1000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--color-header-bg);
    backdrop-filter: blur(10px);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: var(--header-padding-y) var(--header-padding-x);
    gap: 24px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--color-black);
}

.logo-wappen {
    width: 42px;
    height: 50px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    font-weight: 700;
    font-size: var(--font-size-h5);
    line-height: 1;
}

.logo-text-city {
    display: block;
}

.logo-text-subtitle {
    display: block;
}

/* Burger Button */
.burger-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.burger-button:hover {
    opacity: 0.7;
}

.burger-button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   Navigation Panel
   ========================================================================== */

.navigation-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.navigation-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.navigation-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: var(--nav-width);
    max-width: 100%;
    background-color: var(--color-primary);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
}

.navigation-panel.is-active {
    transform: translateX(0);
}

.navigation-panel[aria-hidden="false"] {
    transform: translateX(0);
}

/* Navigation Top Bar */
.navigation-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    gap: 8px;
}

.accessibility-toggles {
    display: flex;
    gap: 24px;
}

.accessibility-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.accessibility-btn:hover {
    opacity: 0.7;
}

.accessibility-btn:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

.accessibility-btn img {
    filter: brightness(0) invert(1);
}

.close-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border: none;
    background-color: var(--color-primary-dark);
    border-radius: 4px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.close-button:hover {
    background-color: var(--color-primary);
}

.close-button:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

.close-button img {
    filter: brightness(0) invert(1);
}

/* Navigation List */
.navigation-list {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    overflow-y: auto;
}

.navigation-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navigation-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 16px 24px;
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-size-body-l);
    line-height: 1.6;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background-color var(--transition-fast);
}

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

.navigation-link:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: -2px;
}

.navigation-link--parent {
    font-family: var(--font-family);
}

.navigation-link--parent[aria-expanded="true"] {
    background-color: var(--color-primary-dark);
}

.caret-icon {
    filter: brightness(0) invert(1);
    transition: transform var(--transition-fast);
}

.navigation-link--parent[aria-expanded="true"] .caret-icon {
    transform: rotate(180deg);
}

/* Submenu */
.navigation-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    background-color: var(--color-primary-dark);
    display: none;
}

.navigation-submenu.is-open {
    display: block;
}

.navigation-subitem {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.navigation-sublink {
    display: block;
    padding: 16px 24px 16px 40px;
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-size-body-m);
    transition: background-color var(--transition-fast);
}

.navigation-sublink:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.navigation-sublink:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: -2px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    position: relative;
    min-height: 810px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: flex-end;
    padding: 0;
    margin-top: calc(-1 * var(--header-height));
    margin-bottom: 80px;

    /* Break out of content-wrapper to be full-width */
    width: 100vw;
    max-width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(0, 0, 0, 0.3) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 60px 24px;
    color: var(--color-white);
}

.hero-title {
    margin: 0 0 16px 0;
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    margin: 0 0 16px 0;
    font-size: var(--font-size-h3);
    font-weight: 400;
    line-height: 1.4;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-text {
    font-size: var(--font-size-body-l);
    line-height: var(--line-height-body);
    max-width: 600px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-text p {
    margin: 0 0 16px 0;
}

.hero-text p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main-content {
    padding-top: var(--header-height);
    min-height: 100vh;
}

.main-content:has(.hero) {
    padding-top: 0;
}

.content-wrapper {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 40px 24px;
}

/* ==========================================================================
   Content Elements (TYPO3 fluid_styled_content overrides)
   ========================================================================== */

/* Typography */
.ce-headline-1,
.frame-type-header h1,
h1 {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: var(--line-height-h1);
    color: var(--color-primary);
    margin: 0 0 24px 0;
}

.ce-headline-2,
.frame-type-header h2,
h2 {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-primary);
    margin: 0 0 20px 0;
}

.ce-headline-3,
.frame-type-header h3,
h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    line-height: var(--line-height-h3);
    color: var(--color-primary);
    margin: 0 0 16px 0;
}

.ce-headline-4,
.frame-type-header h4,
h4 {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-primary);
    margin: 0 0 12px 0;
}

.ce-headline-5,
.frame-type-header h5,
h5 {
    font-size: var(--font-size-h5);
    font-weight: 700;
    line-height: var(--line-height-h5);
    color: var(--color-primary);
    margin: 0 0 8px 0;
}

/* Body text */
.ce-bodytext,
.frame-type-text .ce-bodytext,
.frame-type-textpic .ce-bodytext,
.frame-type-textmedia .ce-bodytext {
    font-size: var(--font-size-body-m);
    line-height: var(--line-height-body);
    color: var(--color-black);
}

.ce-bodytext p {
    margin: 0 0 24px 0;
}

.ce-bodytext p:last-child {
    margin-bottom: 0;
}

.ce-bodytext a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.ce-bodytext a:hover {
    color: var(--color-primary-dark);
}

.ce-bodytext a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Lists */
.ce-bodytext ul,
.ce-bodytext ol {
    margin: 0 0 24px 0;
    padding-left: 24px;
}

.ce-bodytext li {
    margin-bottom: 8px;
}

.ce-bodytext li:last-child {
    margin-bottom: 0;
}

/* Content element frames */
.frame {
    margin-bottom: 24px;
}

.frame:last-child {
    margin-bottom: 0;
}

/* Text sections with headers get extra spacing */
.frame-type-text + .frame-type-text,
.frame-type-textpic + .frame-type-text,
.frame-type-textmedia + .frame-type-text {
    margin-top: 8px;
}

.frame-space-before-small {
    margin-top: 20px;
}

.frame-space-before-medium {
    margin-top: 40px;
}

.frame-space-before-large {
    margin-top: 60px;
}

.frame-space-after-small {
    margin-bottom: 20px;
}

.frame-space-after-medium {
    margin-bottom: 40px;
}

.frame-space-after-large {
    margin-bottom: 60px;
}

/* Card-style content box */
.frame-background-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 24px;
}

.frame-background-primary h1,
.frame-background-primary h2,
.frame-background-primary h3,
.frame-background-primary h4,
.frame-background-primary h5 {
    color: var(--color-white);
}

.frame-background-primary a {
    color: var(--color-white);
}

.frame-background-light {
    background-color: var(--color-gray-light);
    padding: 24px;
}

/* Two column content layout */
.content-columns {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

.content-main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.content-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Info card (like Kontakt box) */
.info-card {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 24px;
}

.info-card h1,
.info-card h2,
.info-card h3 {
    color: var(--color-white);
    margin-bottom: 8px;
}

.info-card p {
    margin: 0;
}

.info-card a {
    color: var(--color-white);
}

/* Contact Box (floating right) */
.contact-box {
    float: right;
    width: 380px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 24px;
    margin: 0 0 24px 40px;
}

.contact-box-title {
    color: var(--color-white);
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: var(--line-height-h1);
    margin: 0 0 8px 0;
}

.contact-box-content {
    font-size: var(--font-size-body-m);
    line-height: var(--line-height-body);
}

.contact-box-content p {
    margin: 0 0 16px 0;
}

.contact-box-content p:last-child {
    margin-bottom: 0;
}

.contact-box-content a {
    color: var(--color-white);
    text-decoration: underline;
}

.contact-box-content a:hover {
    opacity: 0.8;
}

/* Clearfix for elements after floated contact box */
.content-wrapper::after {
    content: "";
    display: table;
    clear: both;
}

/* Responsive contact box */
@media (max-width: 1024px) {
    .contact-box {
        float: none;
        width: 100%;
        margin: 0 0 24px 0;
    }
}

/* Search/Filter cards (Wo?, Wie?, Was?) */
.filter-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 40px 0;
}

.filter-card {
    background-color: var(--color-gray-light);
    padding: 24px;
    min-height: 274px;
}

.filter-card h2 {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: var(--line-height-h1);
    color: var(--color-primary);
    margin-bottom: 8px;
}

.filter-card h3 {
    color: var(--color-primary);
    margin-bottom: 8px;
}

.filter-card p {
    color: var(--color-black);
    margin-bottom: 16px;
}

/* Input fields */
.form-input {
    width: 100%;
    padding: 16px;
    font-family: var(--font-family);
    font-size: var(--font-size-body-m);
    border: 2px solid var(--color-gray-border);
    background-color: var(--color-white);
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-input::placeholder {
    color: var(--color-black);
    opacity: 0.6;
}

/* Accessibility filter items */
.filter-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 8px 0;
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-body-m);
    transition: opacity var(--transition-fast);
}

.filter-item:hover {
    opacity: 0.7;
}

.filter-item-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.filter-item-arrow {
    width: 24px;
    height: 24px;
    margin-left: auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 40px 0;
}

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

.footer-main {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-bottom: 40px;
}

/* Footer Columns */
.footer-column {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-contact {
    gap: 16px;
}

.footer-wappen {
    filter: brightness(0) invert(1);
}

.footer-kassel-logo {
    /* Logo SVG is already white, no filter needed */
    display: block;
}

.footer-address {
    font-style: normal;
    font-size: var(--font-size-body-m);
    line-height: var(--line-height-body);
    color: var(--color-white);
}

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

.footer-address strong {
    color: var(--color-white);
}

.footer-heading {
    margin: 0 0 8px 0;
    font-size: var(--font-size-h5);
    font-weight: 700;
    line-height: 1.6;
    color: var(--color-white);
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 4px;
}

.footer-links a {
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-size-body-m);
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 0.7;
}

.footer-links a:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

/* Footer Meta */
.footer-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--color-white);
}

.footer-meta-logo img {
    filter: brightness(0) invert(1);
}

.footer-meta-links {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-meta-links a {
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-size-body-s);
    transition: opacity var(--transition-fast);
}

.footer-meta-links a:hover {
    opacity: 0.7;
}

.footer-meta-links a:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1200px) {
    :root {
        --header-padding-x: 48px;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
    }

    .footer-contact {
        grid-column: span 2;
    }
}

@media (max-width: 1200px) {
    .content-columns {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    :root {
        --header-padding-x: 24px;
        --header-height: 80px;
        --font-size-h1: 36px;
        --font-size-h3: 24px;
        --font-size-body-m: 18px;
    }

    .hero {
        min-height: 500px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 24px;
    }

    .burger-button {
        width: 48px;
        height: 48px;
    }

    .navigation-panel {
        width: 100%;
    }

    .filter-cards {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .footer-contact {
        grid-column: span 1;
    }

    .footer-meta {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-meta-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

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

/* Body scroll lock when navigation is open */
body.nav-open {
    overflow: hidden;
}