/* ============================================
   Therapiezentrum K&K GmbH - Übergangsseite
   ============================================ */

/* CSS Variablen für Farben */
:root {
    --color-primary: #14535e;        /* Menüleiste, Footer, Überschriften */
    --color-secondary: #038299;      /* Button, Border 7pt */
    --color-accent: #9fc6cd;         /* Hintergrundfarbe, Border 1pt und 3pt */
    --color-light: #e7f2f4;         /* Hintergrundfarbe */
    --color-text: #333333;           /* Haupttext */
    --color-text-light: #666666;     /* Sekundärtext */
    --color-white: #ffffff;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --max-width: 1200px;
}

/* ============================================
   Schriftarten einbinden
   ============================================ */

@font-face {
    font-family: 'Barlow';
    src: url('font/Barlow-Regular.woff2') format('woff2'),
         url('font/Barlow-Regular.woff') format('woff');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Barlow';
    src: url('font/Barlow-Bold.woff2') format('woff2'),
         url('font/Barlow-Bold.woff') format('woff');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* ============================================
   Reset & Basis-Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typografie
   ============================================ */

h1, h2, h3 {
    font-family: 'Barlow', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-sm);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
}

p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin-bottom: var(--spacing-sm);
}

b, strong {
    font-weight: 700;
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease, opacity 0.3s ease;
}

a:hover,
a:focus {
    color: var(--color-primary);
    opacity: 0.8;
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

a:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

/* ============================================
   Container
   ============================================ */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Hero-Bereich
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('img/bildmuster.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    text-align: center;
    padding: var(--spacing-md);
}

/* Overlay für bessere Lesbarkeit */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(20, 83, 94, 0.6); /* var(--color-primary) mit 60% Opazität */
    z-index: 1;
}

/* Hero-Inhalt */
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    color: var(--color-white);
    padding: var(--spacing-lg) var(--spacing-md);
}

.hero-logo {
    max-width: 100%;
    height: auto;
    width: clamp(250px, 60vw, 500px);
    margin: 0 auto var(--spacing-sm);
    display: block;
    background: transparent;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.3));
}

.hero-slogan {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 400;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

/* Hinweistext-Box */
.hero-notice {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 3px solid var(--color-accent);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.notice-text {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-white);
    font-weight: 400;
    margin: 0;
    line-height: 1.8;
}

/* Hero-Buttons Container */
.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    margin-top: var(--spacing-md);
}

/* Kontakt-Button */
.btn-contact,
.btn-opening-hours {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-secondary);
    color: var(--color-white);
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 700;
    border: 7px solid var(--color-secondary);
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    width: 100%;
    max-width: 300px;
}

.btn-contact:hover,
.btn-contact:focus,
.btn-opening-hours:hover,
.btn-opening-hours:focus {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ============================================
   Kontaktbereich
   ============================================ */

.contact-section {
    background-color: var(--color-light);
    padding: var(--spacing-xl) 0;
}

.section-heading {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.contact-item {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--color-accent);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    min-height: 0;
}

.contact-item h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

.contact-label {
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.contact-item p {
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.contact-link {
    color: var(--color-secondary);
    font-weight: 400;
    word-break: break-all;
}

.contact-link:hover,
.contact-link:focus {
    color: var(--color-primary);
    text-decoration: underline;
}

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

.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section {
    text-align: center;
}

.footer-heading {
    color: var(--color-white);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-accent);
    padding-bottom: var(--spacing-sm);
}

.opening-hours p,
.footer-contact p {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
    opacity: 0.95;
}

.opening-hours strong,
.footer-contact strong {
    color: var(--color-accent);
}

.footer-link {
    color: var(--color-accent);
    text-decoration: underline;
}

.footer-link:hover,
.footer-link:focus {
    color: var(--color-white);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(159, 198, 205, 0.3);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-lg);
    text-align: center;
}

.copyright {
    color: var(--color-white);
    opacity: 0.9;
    margin-bottom: var(--spacing-sm);
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.footer-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.footer-nav .separator {
    color: var(--color-accent);
    opacity: 0.5;
}

/* ============================================
   Scroll-to-Top Button
   ============================================ */

.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--color-secondary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover,
.scroll-to-top:focus {
    background-color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   Responsive Design - Tablet
   ============================================ */

@media (min-width: 768px) {
    .hero {
        background-attachment: scroll; /* Bessere Performance auf mobilen Geräten */
    }
    
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-md);
    }

    .btn-contact,
    .btn-opening-hours {
        width: auto;
        max-width: none;
    }
    
    .contact-info {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        text-align: left;
    }
    
    .footer-section {
        text-align: left;
    }
    
    .hero-notice {
        padding: var(--spacing-lg);
    }

    .scroll-to-top {
        bottom: 2.5rem;
        right: 2.5rem;
    }
}

/* ============================================
   Responsive Design - Desktop
   ============================================ */

@media (min-width: 1024px) {
    .hero {
        background-attachment: fixed;
    }
    
    .contact-info {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
        max-width: 1000px;
    }
    
    .footer .container {
        max-width: 1000px;
    }
    
    .hero-content {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* ============================================
   Barrierefreiheit & Performance
   ============================================ */

/* Skip-Link für Screenreader */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

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

/* Reduzierte Bewegung für Nutzer, die das bevorzugen */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Hoher Kontrast Modus */
@media (prefers-contrast: high) {
    :root {
        --color-text: #000000;
        --color-text-light: #333333;
    }
    
    .hero-overlay {
        background-color: rgba(0, 0, 0, 0.7);
    }
}

/* Druck-Styles */
@media print {
    .hero {
        background-image: none;
        background-color: var(--color-primary);
        min-height: auto;
        padding: var(--spacing-md);
    }
    
    .hero-overlay {
        display: none;
    }
    
    .btn-contact {
        display: none;
    }

    .scroll-to-top {
        display: none;
    }
    
    .footer {
        background-color: var(--color-white);
        color: var(--color-text);
        border-top: 2px solid var(--color-primary);
    }
    
    .footer-heading,
    .footer p {
        color: var(--color-text);
    }
}