/* ============================================
   LBZ – Lehrerberatungszentrum Landing Page
   Design basierend auf dem offiziellen LBZ-Styleguide
   ============================================ */

/* --- CSS Variables (from lbz.de styleGuid) --- */
:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --color-black: #000;
    --color-white: #fff;
    --color-text: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-text-tertiary: #6e6e73;
    --color-accent: #ffce00;
    --color-accent-hover: #e6b800;
    --color-primary: #1d1d1f;
    --color-bg: #ffffff;
    --color-bg-secondary: #f5f5f7;
    --color-bg-card: #fafafa;
    --color-border: rgba(0, 0, 0, 0.08);
    --color-selection: #e5e5e5;
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: var(--color-selection);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.25;
    letter-spacing: -0.025em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; font-weight: 600; }

p {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.625;
}

a {
    color: inherit;
    text-decoration: none;
}

/* --- Navigation --- */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.85rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text);
}

.logo-svg {
    height: 76px;
    width: auto;
    display: block;
}

.logo-svg-footer {
    height: 84px;
    margin-bottom: 0.25rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 400;
}

.nav-links > a:not(.btn) {
    padding: 0.45rem 0.85rem;
    color: var(--color-text);
    opacity: 0.75;
    transition: opacity var(--transition-fast);
    border-radius: var(--radius-sm);
}

.nav-links > a:not(.btn):hover {
    opacity: 1;
}

/* --- Buttons (from LBZ style: 0.9em, font-weight 400) --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.4rem;
    border-radius: var(--radius-full);
    font-weight: 400;
    font-size: 0.9rem;
    transition: all var(--transition-smooth);
    cursor: pointer;
    border: 1.5px solid transparent;
}

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

.btn-primary:hover {
    background: #333;
    border-color: #333;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border-color: rgba(0, 0, 0, 0.2);
}

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-white);
    border-color: var(--color-text);
    transform: translateY(-1px);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-accent);
    font-weight: 500;
}

.btn-accent:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 206, 0, 0.35);
}

.btn-lg {
    padding: 0.85rem 2.2rem;
    font-size: 1rem;
}

/* --- Hero --- */
.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
    min-height: calc(100vh - 75px);
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    width: 100%;
}

.hero-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
    background: var(--color-bg-secondary);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    line-height: 1.15;
}

.highlight {
    background: linear-gradient(120deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
    padding: 0.05em 0.15em;
    border-radius: 0.2em;
}

.hero-content > p {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    max-width: 520px;
    color: var(--color-text-tertiary);
}

.hero-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-trust {
    display: flex;
    gap: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.trust-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.trust-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.trust-label {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    width: 100%;
    max-width: 550px;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-smooth);
}

.hero-image:hover {
    transform: scale(1.02);
}

/* --- Section Common --- */
section {
    scroll-margin-top: 80px;
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
    margin-bottom: 0.75rem;
}

.section-header h2 {
    margin-bottom: 0.75rem;
}

.section-sub {
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

/* --- Three Pillars --- */
.pillars {
    padding: 6rem 2rem;
    background: var(--color-bg-secondary);
}

.pillars-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.pillar-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    border: 1px solid var(--color-border);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.pillar-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.pillar-card-featured {
    border: 2px solid var(--color-accent);
    box-shadow: var(--shadow-md);
}

.pillar-card-featured::before {
    content: 'Beliebt';
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: var(--color-accent);
    color: var(--color-text);
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-full);
}

.pillar-icon {
    font-size: 2.2rem;
    margin-bottom: 1.25rem;
}

.pillar-card h3 {
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.pillar-card p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.pillar-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.pillar-link span {
    transition: transform var(--transition-fast);
}

.pillar-link:hover {
    opacity: 1;
}

.pillar-link:hover span {
    transform: translateX(3px);
}

/* --- Journey Timeline --- */
.journey {
    padding: 6rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.timeline {
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1.1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-step {
    position: relative;
    padding-bottom: 2.5rem;
}

.timeline-step:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -3rem;
    top: 0;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    background: var(--color-text);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 1;
    box-shadow: 0 0 0 6px var(--color-bg);
}

.timeline-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    border: 1px solid var(--color-border);
    transition: all var(--transition-smooth);
}

.timeline-card:hover {
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.timeline-card h3 {
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 1.15rem;
}

.timeline-card p {
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-tags span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-tertiary);
    background: var(--color-white);
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
}

/* --- Community --- */
.community {
    padding: 6rem 2rem;
    background: var(--color-bg-secondary);
}

.community-card {
    max-width: 1100px;
    margin: 0 auto;
    background: var(--color-text);
    border-radius: var(--radius-xl);
    padding: 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    color: var(--color-white);
    overflow: hidden;
    position: relative;
}

.community-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 206, 0, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.community-content {
    position: relative;
    z-index: 1;
}

.community-content .section-tag {
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.community-content h2 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.community-benefits {
    list-style: none;
    margin-bottom: 2rem;
}

.community-benefits li {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 0.7rem;
    font-size: 0.95rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.community-benefits li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    width: 18px;
    height: 18px;
    background: var(--color-accent);
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat 50% 50%;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat 50% 50%;
    -webkit-mask-size: cover;
    mask-size: cover;
}

.community-content .btn-primary {
    background: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-accent);
    font-weight: 600;
}

.community-content .btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    box-shadow: 0 8px 30px rgba(255, 206, 0, 0.4);
}

.community-visual {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.community-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.cstat {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-smooth);
}

.cstat:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.cstat:first-child {
    grid-column: 1 / -1;
}

.cstat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.cstat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
}

/* --- Blog --- */
.blog {
    padding: 6rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.blog-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    transition: all var(--transition-smooth);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.blog-card-image {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-icon {
    font-size: 3rem;
    opacity: 0.9;
}

.blog-card-body {
    padding: 1.5rem;
}

.blog-card-date {
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.blog-card-body h3 {
    margin: 0.5rem 0;
    font-weight: 600;
    font-size: 1.1rem;
    line-height: 1.35;
    color: var(--color-text);
}

.blog-card-body p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* --- CTA --- */
.cta-section {
    padding: 4rem 2rem 6rem;
}

.cta-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: 4rem 3rem;
    border: 1px solid var(--color-border);
}

.cta-card h2 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.cta-card p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-card strong {
    font-weight: 600;
    color: var(--color-text);
}

.cta-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.cta-divider {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.cta-contact-info {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.cta-contact-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.cta-contact-link:hover {
    opacity: 1;
}

/* --- Footer --- */
footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 4rem 2rem 2rem;
}

.footer-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    padding-bottom: 2.5rem;
}

.footer-brand .logo {
    margin-bottom: 0.75rem;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    line-height: 1.6;
}

.footer-col h4 {
    margin-bottom: 1rem;
    color: var(--color-text);
}

.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 300;
    padding: 0.25rem 0;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    max-width: 1100px;
    margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-visual {
        order: -1;
    }

    .hero-image {
        max-width: 400px;
    }

    .community-card {
        grid-template-columns: 1fr;
        padding: 2.5rem;
    }

    .community-stats {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .cstat:first-child {
        grid-column: auto;
    }

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

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.6rem; }

    nav {
        flex-direction: column;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.4rem;
        font-size: 0.8rem;
    }

    .nav-links > a:not(.btn) {
        padding: 0.35rem 0.6rem;
    }

    .hero {
        padding: 3rem 1.25rem;
        min-height: auto;
    }

    .hero-trust {
        gap: 1.5rem;
    }

    .trust-number {
        font-size: 1.2rem;
    }

    .pillars {
        padding: 4rem 1rem;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
    }

    .community-card {
        padding: 2rem 1.5rem;
        border-radius: var(--radius-lg);
    }

    .community-stats {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 0.75rem;
    }

    .cstat {
        padding: 1.25rem 0.75rem;
    }

    .cstat-number {
        font-size: 1.5rem;
    }

    .cstat-label {
        font-size: 0.7rem;
    }

    .timeline {
        padding-left: 2.5rem;
    }

    .timeline::before {
        left: 0.85rem;
    }

    .timeline-marker {
        left: -2.5rem;
        width: 2rem;
        height: 2rem;
        font-size: 0.75rem;
    }

    .cta-card {
        padding: 2.5rem 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-trust {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .community-stats {
        grid-template-columns: 1fr 1fr;
    }
}