/* ==========================================================================
   Ganzkörper-Seniorentraining – Styles
   A calm, accessible design for seniors
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette - Warm, earthy, calming */
    --color-cream: #FAF7F2;
    --color-cream-dark: #F5F0E8;
    --color-sand: #E8DFD3;
    --color-terracotta: #C4A77D;
    --color-terracotta-dark: #A68B5B;
    --color-sage: #8B9A7E;
    --color-sage-light: #B5C4A9;
    --color-forest: #5A6B52;
    --color-charcoal: #3D3D3D;
    --color-charcoal-light: #5A5A5A;
    --color-white: #FFFFFF;
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes - Large for seniors */
    --text-base: 1.125rem;      /* 18px */
    --text-lg: 1.25rem;         /* 20px */
    --text-xl: 1.5rem;          /* 24px */
    --text-2xl: 1.875rem;       /* 30px */
    --text-3xl: 2.25rem;        /* 36px */
    --text-4xl: 2.75rem;        /* 44px */
    --text-5xl: 3.5rem;         /* 56px */
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;
    
    /* Layout */
    --max-width: 1200px;
    --max-text-width: 70ch;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Shadows */
    --shadow-soft: 0 2px 20px rgba(61, 61, 61, 0.06);
    --shadow-medium: 0 4px 30px rgba(61, 61, 61, 0.1);
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-charcoal);
    background-color: var(--color-cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 3px solid var(--color-sage);
    outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.3;
    color: var(--color-charcoal);
}

h1 {
    font-size: var(--text-4xl);
    font-weight: 400;
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-lg);
}

h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-md);
}

h4 {
    font-size: var(--text-xl);
    font-family: var(--font-body);
    font-weight: 600;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

p {
    max-width: var(--max-text-width);
    margin-bottom: var(--space-md);
}

p:last-child {
    margin-bottom: 0;
}

a {
    color: var(--color-forest);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}

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

strong {
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-3xl) 0;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(250, 247, 242, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-sand);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--color-charcoal);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--color-forest);
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-charcoal);
    transition: var(--transition-base);
}

.nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-cream);
    border-bottom: 1px solid var(--color-sand);
    list-style: none;
    padding: var(--space-md);
}

.nav-links.active {
    display: block;
}

.nav-links li {
    margin-bottom: var(--space-sm);
}

.nav-links li:last-child {
    margin-bottom: 0;
}

.nav-links a {
    font-size: var(--text-lg);
    color: var(--color-charcoal);
    text-decoration: none;
    padding: var(--space-xs) 0;
    display: block;
}

.nav-links a:hover {
    color: var(--color-forest);
}

/* Desktop navigation */
@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
    
    .nav-links {
        display: flex;
        position: static;
        background: none;
        border: none;
        padding: 0;
        gap: var(--space-lg);
    }
    
    .nav-links li {
        margin-bottom: 0;
    }
    
    .nav-links a {
        font-size: var(--text-base);
        padding: var(--space-xs) 0;
    }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 500;
    text-decoration: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 48px;
    line-height: 1.4;
}

.btn-primary {
    background-color: var(--color-forest);
    color: var(--color-white);
    border-color: var(--color-forest);
}

.btn-primary:hover {
    background-color: var(--color-sage);
    border-color: var(--color-sage);
    color: var(--color-white);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-forest);
    border-color: var(--color-forest);
}

.btn-secondary:hover {
    background-color: var(--color-forest);
    color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(80px + var(--space-2xl)) var(--space-md) var(--space-2xl);
    background: linear-gradient(
        135deg,
        var(--color-cream) 0%,
        var(--color-cream-dark) 50%,
        var(--color-sand) 100%
    );
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(
        ellipse at center,
        rgba(181, 196, 169, 0.2) 0%,
        transparent 70%
    );
    pointer-events: none;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: var(--text-4xl);
    max-width: 16ch;
    margin-bottom: var(--space-lg);
    color: var(--color-charcoal);
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-charcoal-light);
    max-width: 40ch;
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.hero-image {
    display: none;
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: var(--shadow-medium);
    display: block;
}

@media (min-width: 768px) {
    .hero {
        flex-direction: row;
        align-items: center;
        padding: var(--space-4xl) var(--space-3xl);
        min-height: auto;
    }
    
    .hero h1 {
        font-size: var(--text-5xl);
    }
    
    .hero-subtitle {
        font-size: var(--text-2xl);
    }
    
    .hero-buttons {
        flex-direction: row;
        gap: var(--space-md);
    }
    
    .hero-content {
        flex: 1;
        padding-right: var(--space-md);
    }
    
    .hero-image {
        display: block;
        flex: 0 0 50%;
    }
}

@media (min-width: 1024px) {
    .hero {
        padding: var(--space-4xl) var(--space-4xl);
    }
}

/* Image Placeholders */
.image-placeholder {
    background: linear-gradient(
        145deg,
        var(--color-sand) 0%,
        var(--color-sage-light) 100%
    );
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder::after {
    content: 'Bild';
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    color: var(--color-charcoal-light);
    opacity: 0.5;
}

.image-placeholder.portrait {
    aspect-ratio: 3/4;
    max-width: 350px;
}

.portrait-img {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    display: block;
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.section-about {
    background-color: var(--color-white);
}

.about-grid {
    display: grid;
    gap: var(--space-2xl);
}

.about-image {
    display: flex;
    justify-content: center;
}

.about-content h2 {
    color: var(--color-forest);
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr 1.5fr;
        align-items: start;
        gap: var(--space-3xl);
    }
}

/* --------------------------------------------------------------------------
   Offer Section
   -------------------------------------------------------------------------- */
.section-offer {
    background-color: var(--color-cream);
}

.section-intro {
    font-size: var(--text-lg);
    color: var(--color-charcoal-light);
    margin-bottom: var(--space-2xl);
}

.offer-block {
    background-color: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-soft);
}

.offer-block:last-child {
    margin-bottom: 0;
}

.offer-block h3 {
    color: var(--color-forest);
}

/* Feature Lists */
.feature-list {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
}

.feature-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 8px;
    background-color: var(--color-sage);
    border-radius: 50%;
}

.feature-list li:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Training Cards (Group & Individual)
   -------------------------------------------------------------------------- */
.section-group {
    background-color: var(--color-cream-dark);
}

.section-individual {
    background-color: var(--color-white);
}

.training-card {
    background-color: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    max-width: 800px;
    margin: 0 auto;
}

.section-individual .training-card {
    background-color: var(--color-cream);
    border: 2px solid var(--color-sand);
}

.training-card h3 {
    color: var(--color-forest);
    font-size: var(--text-2xl);
}

.training-card.highlight {
    border-left: 4px solid var(--color-sage);
}

.highlight-text {
    background-color: var(--color-sage-light);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
}

.location-list {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
}

.location-list li {
    padding: var(--space-xs) 0;
    padding-left: var(--space-lg);
    position: relative;
}

.location-list li::before {
    content: '📍';
    position: absolute;
    left: 0;
    font-size: 0.9em;
}

.hint-text {
    font-size: var(--text-base);
    color: var(--color-charcoal-light);
    font-style: italic;
    margin-top: var(--space-md);
}

.hint-text.centered {
    text-align: center;
    max-width: none;
}

/* --------------------------------------------------------------------------
   Pricing Section
   -------------------------------------------------------------------------- */
.section-pricing {
    background-color: var(--color-cream);
}

.pricing-content {
    max-width: 700px;
    background-color: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.cta-text {
    font-weight: 500;
    color: var(--color-forest);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-lg);
}

/* --------------------------------------------------------------------------
   Process Section
   -------------------------------------------------------------------------- */
.section-process {
    background-color: var(--color-white);
}

.process-steps {
    list-style: none;
    padding: 0;
    margin: var(--space-xl) 0;
    max-width: 700px;
}

.process-steps li {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-sand);
}

.process-steps li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background-color: var(--color-sage-light);
    color: var(--color-forest);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 600;
}

.step-content h4 {
    margin-top: 0;
    margin-bottom: var(--space-xs);
    color: var(--color-charcoal);
}

.step-content p {
    margin-bottom: 0;
    color: var(--color-charcoal-light);
}

/* --------------------------------------------------------------------------
   FAQ Section
   -------------------------------------------------------------------------- */
.section-faq {
    background-color: var(--color-cream-dark);
}

.faq-list {
    max-width: 800px;
}

.faq-item {
    background-color: var(--color-white);
    margin-bottom: var(--space-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.faq-item summary {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--text-lg);
    font-weight: 500;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-fast);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: var(--text-xl);
    color: var(--color-sage);
    font-weight: 300;
    transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary:hover {
    background-color: var(--color-cream);
}

.faq-item p {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--color-charcoal-light);
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.section-cta {
    padding: var(--space-2xl) 0;
    background-color: var(--color-cream);
}

.cta-box {
    background: linear-gradient(
        135deg,
        var(--color-sage-light) 0%,
        var(--color-sand) 100%
    );
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-box h3 {
    color: var(--color-charcoal);
    margin-bottom: var(--space-sm);
}

.cta-box p {
    max-width: none;
    margin-bottom: var(--space-lg);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.section-contact {
    background-color: var(--color-white);
}

.contact-grid {
    display: grid;
    gap: var(--space-2xl);
}

.contact-info {
    background-color: var(--color-cream);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
}

.contact-name {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.contact-role {
    color: var(--color-charcoal-light);
    margin-bottom: var(--space-lg);
}

.contact-details p {
    margin-bottom: var(--space-sm);
}

.contact-label {
    font-weight: 500;
    display: block;
    font-size: 0.9em;
    color: var(--color-charcoal-light);
    margin-bottom: 2px;
}

.contact-details a {
    font-size: var(--text-lg);
}

/* Contact Form */
.contact-form {
    background-color: var(--color-cream);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--color-charcoal);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    font-family: var(--font-body);
    font-size: var(--text-base);
    border: 2px solid var(--color-sand);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-sage);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Form Messages (Success & Error) */
.form-message {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: var(--text-base);
    line-height: 1.5;
    animation: slideIn 0.3s ease-out;
}

.form-message-success {
    background-color: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.form-message-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 2px solid #f5c6cb;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button disabled state */
.btn:disabled,
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--color-charcoal);
    color: var(--color-cream);
    padding: var(--space-2xl) var(--space-md);
    text-align: center;
}

.footer-quote {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-style: italic;
    max-width: 40ch;
    margin: 0 auto var(--space-lg);
    opacity: 0.9;
}

.footer-nav {
    margin-bottom: var(--space-lg);
}

.footer-nav a {
    color: var(--color-cream);
    text-decoration: none;
    margin: 0 var(--space-md);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-nav a:hover {
    opacity: 1;
    color: var(--color-cream);
}

.footer-copy {
    font-size: 0.9em;
    opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.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;
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    .main-nav,
    .hero-buttons,
    .section-cta,
    .contact-form {
        display: none;
    }
    
    .section {
        padding: var(--space-lg) 0;
    }
    
    body {
        font-size: 12pt;
        color: black;
        background: white;
    }
}