/* ============================================
   Lernkraft Akademie - Global Styles
   ============================================ */

/* Google Fonts - Poppins */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --primary-green: #166534;
    --accent-green: #22c55e;
    --white: #ffffff;
    --text-gray: #4b5563;
    --light-gray: #f3f4f6;
    --border-gray: #e5e7eb;
    --dark-gray: #1f2937;
    
    --font-light: 300;
    --font-regular: 400;
    --font-semibold: 600;
    
    --transition: 0.3s ease;
    --border-radius: 12px;
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    font-weight: var(--font-light);
    color: var(--text-gray);
    line-height: 1.6;
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-semibold);
    color: var(--dark-gray);
    line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.section-title p {
    color: var(--text-gray);
    font-size: 1.1rem;
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: var(--font-semibold);
    color: var(--primary-green);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-gray);
    font-weight: var(--font-regular);
    position: relative;
}

nav a:hover {
    color: var(--accent-green);
}

nav a.active {
    color: var(--primary-green);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 0.3rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-green);
    transition: var(--transition);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    background-color: var(--accent-green);
    color: var(--white);
    font-weight: var(--font-regular);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn:hover {
    background-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--accent-green);
    color: var(--accent-green);
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(22, 101, 52, 0.85) 0%, rgba(34, 197, 94, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Cards & Grid
   ============================================ */
.grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

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

.card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition);
    border: 1px solid var(--border-gray);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--primary-green);
}

.card p {
    margin-bottom: 0;
}

/* Card with Image */
.card-image {
    overflow: hidden;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.card-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

/* ============================================
   Statistics Section
   ============================================ */
.stats {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
    color: var(--white);
    padding: 4rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
    background-color: var(--light-gray);
    text-align: center;
    padding: 4rem 2rem;
    border-radius: var(--border-radius);
    margin: 4rem 0;
}

.cta h2 {
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: var(--font-regular);
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-gray);
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   Footer
   ============================================ */
footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--accent-green);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
    display: block;
}

.footer-section a:hover {
    color: var(--accent-green);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   Cookie Banner
   ============================================ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 1.5rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
}

.cookie-text p {
    margin-bottom: 0.5rem;
}

.cookie-text a {
    color: var(--accent-green);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

.cookie-buttons .btn {
    padding: 0.75rem 1.5rem;
}

/* ============================================
   Blog Articles
   ============================================ */
.article-header {
    text-align: center;
    padding: 3rem 0;
}

.article-meta {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.article-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-green);
}

.article-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.article-content img {
    border-radius: var(--border-radius);
    margin: 2rem 0;
    width: 100%;
}

.article-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

/* ============================================
   FAQ Accordion
   ============================================ */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: var(--light-gray);
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: var(--font-regular);
    color: var(--dark-gray);
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--accent-green);
    color: var(--white);
}

.faq-question.active {
    background-color: var(--primary-green);
    color: var(--white);
}

.faq-icon {
    font-size: 1.5rem;
    transition: var(--transition);
}

.faq-question.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.active {
    padding: 1.5rem;
    max-height: 500px;
}

/* ============================================
   Contact Page
   ============================================ */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-info-item {
    margin-bottom: 1.5rem;
}

.contact-info-item h3 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.map-container {
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-top: 2rem;
}

/* ============================================
   Filter Buttons
   ============================================ */
.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--light-gray);
    color: var(--text-gray);
    border: 1px solid var(--border-gray);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--accent-green);
    color: var(--white);
    border-color: var(--accent-green);
}

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

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (up to 768px) */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }
    
    .section {
        padding: 3rem 0;
    }
    
    /* Navigation */
    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        transition: var(--transition);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    nav.active {
        left: 0;
    }
    
    nav ul {
        flex-direction: column;
        padding: 2rem;
        gap: 0;
    }
    
    nav li {
        border-bottom: 1px solid var(--border-gray);
    }
    
    nav a {
        display: block;
        padding: 1rem 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    /* Hero */
    .hero {
        min-height: 500px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    /* Grid layouts */
    .grid,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }
    
    .cookie-buttons .btn {
        width: 100%;
    }
}

/* Small Mobile (up to 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .section-title h2 {
        font-size: 1.75rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.hidden {
    display: none;
}