/* =============================================
   Alexander Henne IT-Consulting - Dark Tech Design
   ============================================= */

/* CSS Variables - Dark Tech Theme */
:root {
    /* Colors - Dark Mode with Green Accent */
    --color-primary: #1E293B;
    --color-secondary: #334155;
    --color-accent: #22C55E;
    --color-accent-hover: #16A34A;
    --color-background: #0F172A;
    --color-surface: #1E293B;
    --color-surface-elevated: #334155;
    --color-text: #F8FAFC;
    --color-text-muted: #94A3B8;
    --color-border: #334155;

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 2px 4px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 12px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 12px 24px -4px rgb(0 0 0 / 0.5);
    --shadow-glow: 0 0 20px rgb(34 197 94 / 0.3);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.625rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

h1 {
    font-size: 2.75rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

@media (min-width: 768px) {
    h1 {
        font-size: 4rem;
    }

    h2 {
        font-size: 2.75rem;
    }

    h3 {
        font-size: 1.75rem;
    }
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4.5rem;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.navbar-brand::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--color-accent);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-glow);
}

.navbar-brand:hover {
    color: var(--color-accent);
}

.navbar-menu {
    display: none;
    list-style: none;
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .navbar-menu {
        display: flex;
    }
}

.navbar-menu a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar-menu a:hover {
    color: var(--color-accent);
    background-color: rgba(34, 197, 94, 0.1);
}

/* Mobile Menu Toggle */
.navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .navbar-toggle {
        display: none;
    }
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: var(--spacing-md);
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
}

.mobile-menu a:hover {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--color-accent);
}

/* Sections */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header .subtitle {
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.section-header .divider {
    width: 4rem;
    height: 0.25rem;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    margin: 0 auto;
    border-radius: var(--radius-full);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(34, 197, 94, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(30, 41, 59, 0.5) 0%, transparent 50%),
        var(--color-background);
}

.hero-content {
    max-width: 48rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.hero-badge::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--color-accent);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.hero h1 {
    margin-bottom: var(--spacing-lg);
}

.hero .accent-text {
    color: var(--color-accent);
}

.hero blockquote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-text-muted);
    border-left: 3px solid var(--color-accent);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.hero blockquote cite {
    display: block;
    font-size: 0.875rem;
    font-style: normal;
    margin-top: var(--spacing-sm);
    color: var(--color-accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-background);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card h3,
.card h4 {
    margin-bottom: var(--spacing-md);
}

.card-accent {
    position: relative;
    overflow: hidden;
}

.card-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: 1fr;
}

.grid-3 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Skills List */
.skills-list {
    list-style: none;
}

.skills-list li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.skills-list li:hover {
    color: var(--color-text);
}

.skills-list li:last-child {
    border-bottom: none;
}

/* About Section */
.about-grid {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

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

.about-image {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), transparent);
    pointer-events: none;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Contact Section */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--color-accent);
    border-radius: var(--radius-md);
    border: 1px solid rgba(34, 197, 94, 0.2);
    flex-shrink: 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background-color: var(--color-surface);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-background);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Partner Section */
.partner-card {
    max-width: 28rem;
    margin: 0 auto;
    text-align: center;
}

.partner-card img {
    max-width: 100%;
    max-height: 10rem;
    height: auto;
    object-fit: contain;
    margin-bottom: var(--spacing-lg);
    filter: brightness(1.1);
}

/* Footer */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

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

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

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-accent);
    color: var(--color-background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glow);
    transition: all var(--transition-normal);
    z-index: 40;
}

.back-to-top:hover {
    transform: translateY(-4px);
    color: var(--color-background);
}

/* Legal Pages */
.legal-content {
    max-width: 48rem;
    margin: 0 auto;
    padding-top: 6rem;
}

.legal-content h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.legal-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.legal-content p {
    color: var(--color-text-muted);
}

/* Background Patterns */
.bg-pattern {
    position: relative;
}

.bg-pattern::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, var(--color-border) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.3;
    pointer-events: none;
}

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

.text-muted {
    color: var(--color-text-muted);
}

.text-accent {
    color: var(--color-accent);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.bg-alt {
    background-color: var(--color-surface);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus States */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}