/* ============================================
   HITT.WEBSITE - Human Invest Think Tank
   Futuristic Dark Theme
   ============================================ */

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2332;
    --bg-elevated: #243447;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #f8fafc;
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.3);
    --accent-orange: #f97316;
    --accent-orange-glow: rgba(249, 115, 22, 0.3);
    --accent-green: #10b981;
    --border-subtle: rgba(148, 163, 184, 0.1);
    --border-medium: rgba(148, 163, 184, 0.2);
    --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #111827 50%, #1a2332 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-cyan) 0%, #0891b2 100%);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow-cyan: 0 0 20px var(--accent-cyan-glow);
    --shadow-glow-orange: 0 0 20px var(--accent-orange-glow);
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700; line-height: 1.2; color: var(--text-accent);
    letter-spacing: -0.02em;
}
h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800; letter-spacing: -0.03em;
}
h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    margin-top: 3rem; margin-bottom: 1.5rem;
    position: relative; padding-bottom: 0.75rem;
}
h2::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 60px; height: 3px;
    background: var(--gradient-accent); border-radius: 2px;
}
.text-center h2::after { left: 50%; transform: translateX(-50%); }
h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.8rem);
    margin-top: 2.5rem; margin-bottom: 1rem; color: var(--accent-cyan);
}
h4 { font-size: 1.15rem; margin-top: 2rem; margin-bottom: 0.75rem; color: var(--text-secondary); }
p { margin-bottom: 1.25rem; color: var(--text-secondary); max-width: 70ch; }
a {
    color: var(--accent-cyan); text-decoration: none;
    transition: color var(--transition-fast); border-bottom: 1px solid transparent;
}
a:hover { color: var(--text-accent); border-bottom-color: var(--accent-cyan); }
strong { color: var(--text-accent); font-weight: 600; }
em { color: var(--accent-orange); font-style: italic; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.container-narrow { max-width: 800px; margin: 0 auto; padding: 0 2rem; }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; } .mt-4 { margin-top: 4rem; } .mt-5 { margin-top: 5rem; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 1rem; } .mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--transition-medium);
}
.site-header.scrolled { background: rgba(10, 14, 23, 0.95); box-shadow: var(--shadow-md); }
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 70px; max-width: 1200px; margin: 0 auto; padding: 0 2rem;
}
.logo {
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 1.5rem; font-weight: 800; color: var(--text-accent);
    letter-spacing: -0.02em; border-bottom: none;
}
.logo:hover { border-bottom: none; color: var(--accent-cyan); }
.logo-image { display: flex; align-items: center; justify-content: center; }
.logo-img-header, .logo-img-footer {
    width: 40px; height: 40px; border-radius: 10px; object-fit: cover;
}
.logo-text-small {
    font-size: 0.65rem; font-weight: 500; color: var(--text-muted);
    letter-spacing: 0.15em; text-transform: uppercase; margin-top: 0.15rem;
}
.main-nav { display: flex; align-items: center; gap: 2.5rem; }
.main-nav a {
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
    letter-spacing: 0.02em; border-bottom: 2px solid transparent;
    padding-bottom: 0.25rem; transition: all var(--transition-fast);
}
.main-nav a:hover, .main-nav a.active { color: var(--accent-cyan); border-bottom-color: var(--accent-cyan); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.menu-toggle span { display: block; width: 25px; height: 2px; background: var(--text-primary); transition: all var(--transition-fast); }

.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; background: var(--gradient-hero); overflow: hidden; padding-top: 70px;
}
.hero::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 50%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
    pointer-events: none;
}
.hero-grid {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background-image: linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 50px 50px; opacity: 0.5; pointer-events: none;
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 900px; padding: 0 2rem; }
.hero-logo { margin-bottom: 2rem; display: flex; justify-content: center; }
.logo-img-hero { width: 200px; height: 200px; border-radius: 24px; object-fit: cover; box-shadow: 0 0 40px rgba(6, 182, 212, 0.2); }
.hero-badge {
    display: inline-block; font-family: var(--font-mono); font-size: 0.75rem;
    font-weight: 500; color: var(--accent-cyan); letter-spacing: 0.2em;
    text-transform: uppercase; padding: 0.5rem 1.25rem;
    border: 1px solid var(--accent-cyan); border-radius: 100px;
    margin-bottom: 2rem; background: rgba(6, 182, 212, 0.05);
}
.hero h1 { margin-bottom: 1.5rem; line-height: 1.1; }
.hero h1 .accent { color: var(--accent-cyan); text-shadow: 0 0 30px var(--accent-cyan-glow); }
.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem); color: var(--text-secondary);
    max-width: 600px; margin: 0 auto 2.5rem; line-height: 1.6;
}
.hero-description {
    font-size: 1rem; color: var(--text-muted); max-width: 550px;
    margin: 0 auto 3rem;
}
.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.875rem 2rem; font-family: var(--font-primary);
    font-size: 0.9rem; font-weight: 600; letter-spacing: 0.02em;
    border-radius: 8px; cursor: pointer; transition: all var(--transition-medium);
    border: none; text-decoration: none;
}
.btn-primary {
    background: var(--gradient-accent); color: var(--bg-primary);
    box-shadow: var(--shadow-glow-cyan);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 30px var(--accent-cyan-glow); border-bottom: none; color: var(--bg-primary); }
.btn-secondary {
    background: transparent; color: var(--text-primary);
    border: 1px solid var(--border-medium);
}
.btn-secondary:hover { background: var(--bg-card); border-color: var(--accent-cyan); color: var(--accent-cyan); border-bottom: 1px solid var(--accent-cyan); transform: translateY(-2px); }
.scroll-indicator {
    position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
    animation: bounce 2s infinite; cursor: pointer; border-bottom: none;
}
.scroll-indicator:hover { border-bottom: none; }
.scroll-indicator span {
    font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted);
    letter-spacing: 0.1em; text-transform: uppercase;
}
.scroll-indicator svg { width: 24px; height: 24px; color: var(--accent-cyan); }
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

.section { padding: 6rem 0; position: relative; }
.section-alt { background: var(--bg-secondary); }
.section-header { margin-bottom: 4rem; }
.section-header h2 { margin-top: 0; }
.section-header p { font-size: 1.1rem; max-width: 600px; margin-top: 1rem; }

/* ============================================
   AREA CARDS (Main Sections)
   ============================================ */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
@media (max-width: 992px) {
    .areas-grid { grid-template-columns: 1fr; }
}
.area-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    border-bottom: none;
}
.area-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-medium);
}
.area-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
    color: inherit;
    border-bottom: none;
}
.area-card:hover::before { transform: scaleX(1); }

/* Area-specific accent colors */
.area-technik::before { background: linear-gradient(90deg, #06b6d4, #0891b2); }
.area-technik:hover { border-color: rgba(6, 182, 212, 0.3); box-shadow: 0 10px 40px rgba(6, 182, 212, 0.15); }
.area-technik .area-icon { color: #06b6d4; background: rgba(6, 182, 212, 0.1); }

.area-mensch::before { background: linear-gradient(90deg, #f97316, #ea580c); }
.area-mensch:hover { border-color: rgba(249, 115, 22, 0.3); box-shadow: 0 10px 40px rgba(249, 115, 22, 0.15); }
.area-mensch .area-icon { color: #f97316; background: rgba(249, 115, 22, 0.1); }

.area-system::before { background: linear-gradient(90deg, #10b981, #059669); }
.area-system:hover { border-color: rgba(16, 185, 129, 0.3); box-shadow: 0 10px 40px rgba(16, 185, 129, 0.15); }
.area-system .area-icon { color: #10b981; background: rgba(16, 185, 129, 0.1); }

.area-icon {
    width: 60px; height: 60px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.5rem;
}
.area-number {
    font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600;
    color: var(--text-muted); letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
}
.area-card h3 {
    margin-top: 0; margin-bottom: 1rem;
    font-size: 1.4rem; color: var(--text-accent);
}
.area-card > p {
    font-size: 0.95rem; color: var(--text-secondary);
    margin-bottom: 1.5rem; flex: 1; line-height: 1.7;
}
.area-tags {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.area-tags span {
    font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500;
    color: var(--text-muted); background: var(--bg-elevated);
    padding: 0.35rem 0.75rem; border-radius: 100px;
    letter-spacing: 0.02em;
}
.area-link {
    font-weight: 600; font-size: 0.95rem;
    color: var(--accent-cyan);
    display: flex; align-items: center; gap: 0.5rem;
    transition: all var(--transition-fast);
}
.area-technik .area-link { color: #06b6d4; }
.area-mensch .area-link { color: #f97316; }
.area-system .area-link { color: #10b981; }
.area-card:hover .area-link { gap: 0.75rem; }

/* ============================================
   STATS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem; text-align: center;
}
.stat-item { padding: 2rem; }
.stat-number {
    font-family: var(--font-mono); font-size: 3rem; font-weight: 700;
    color: var(--accent-cyan); line-height: 1;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 20px var(--accent-cyan-glow);
}
.stat-label {
    font-size: 0.9rem; color: var(--text-secondary);
    letter-spacing: 0.05em;
}

/* ============================================
   ANALYSIS CARDS
   ============================================ */
.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}
.analysis-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 2rem;
    transition: all var(--transition-medium);
    position: relative;
}
.analysis-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}
.analysis-tag {
    display: inline-block; font-family: var(--font-mono);
    font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em;
    text-transform: uppercase; padding: 0.35rem 0.85rem;
    border-radius: 100px; margin-bottom: 1rem;
}
.tag-geopolitik { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.tag-wirtschaft { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.tag-technologie { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.tag-gesellschaft { background: rgba(249, 115, 22, 0.15); color: var(--accent-orange); }
.analysis-card h3 {
    margin-top: 0; font-size: 1.2rem; margin-bottom: 0.75rem;
}
.analysis-card h3 a { color: var(--text-accent); border-bottom: none; }
.analysis-card h3 a:hover { color: var(--accent-cyan); }
.analysis-card p { font-size: 0.95rem; margin-bottom: 1.25rem; }
.analysis-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--font-mono); font-size: 0.75rem;
    color: var(--text-muted); padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}