/* ========================================
   NBS Event Solutions - Global Styles
   Inspiriert von ASUS ProArt Design
   ======================================== */

/* CSS Custom Properties */
:root {
    /* Primärfarben - Dunkles Theme */
    --color-bg-primary: #0a0d14;
    --color-bg-secondary: #10141c;
    --color-bg-tertiary: #161b26;
    --color-bg-card: #1a1f2e;

    /* Akzentfarben - NBS Branding */
    --color-accent-primary: #2379a6;
    --color-accent-secondary: #0aadbf;
    --color-accent-light: #8ed0df;
    --color-accent-blue: #0aadbf;
    --color-accent-gradient: linear-gradient(135deg, #2379a6 0%, #0aadbf 50%, #8ed0df 100%);

    /* Text */
    --color-text-primary: #ffffff;
    --color-text-secondary: #a1a7b4;
    --color-text-muted: #6b7280;

    /* Borders & Shadows */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(10, 173, 191, 0.2);

    /* Typografie */
    --font-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-padding: clamp(4rem, 8vw, 8rem);
    --container-max: 1400px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-blue);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

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

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

/* Utility Classes */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 3rem);
}

.gradient-text {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent-secondary);
    color: white;
    box-shadow: var(--shadow-sm);
}

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

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

.btn-outline:hover {
    background: var(--color-bg-card);
    border-color: var(--color-accent-blue);
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    margin-bottom: 1rem;
}

.section-title p {
    max-width: 600px;
    margin: 0 auto;
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Image hover effects */
.img-hover-zoom {
    overflow: hidden;
    border-radius: 16px;
}

.img-hover-zoom img {
    transition: transform var(--transition-smooth);
}

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

/* Card Base Style */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition-smooth);
}

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

/* Divider */
.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-hover), transparent);
    margin: var(--section-padding) 0;
}

/* Selection */
::selection {
    background: var(--color-accent-blue);
    color: white;
}

/* ========================================
   Performance Optimierungen
   ======================================== */

/* GPU-Beschleunigung für animierte Elemente */
.tile,
.service-card,
.gallery-item,
.info-image img,
.navbar {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Bilder optimieren */
img {
    content-visibility: auto;
}

/* Reduzierte Animationen bei Bedarf */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   Mobile & Touch Optimierungen
   ======================================== */

/* Verhindert horizontalen Scroll */
html, body {
    overflow-x: hidden;
    width: 100%;
}

/* Safe Area für iPhone Notch/Home Bar */
@supports (padding: max(0px)) {
    body {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .site-footer {
        padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
    }
}

/* Responsive Anpassungen */
@media (max-width: 768px) {
    html {
        font-size: 15px;
        scroll-padding-top: 70px;
    }

    h1 { font-size: clamp(1.75rem, 7vw, 2.5rem); }
    h2 { font-size: clamp(1.5rem, 5vw, 2rem); }
    h3 { font-size: clamp(1.25rem, 4vw, 1.5rem); }

    p {
        font-size: 1rem;
        line-height: 1.7;
    }

    .section-title {
        margin-bottom: 2.5rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
        /* Mindestgröße für Touch-Targets */
        min-height: 48px;
    }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
        scroll-padding-top: 65px;
    }

    .btn {
        padding: 0.75rem 1.25rem;
        width: 100%;
        justify-content: center;
    }

    .btn-outline {
        padding: 0.625rem 1rem;
    }
}

/* Touch-spezifische Optimierungen */
@media (hover: none) and (pointer: coarse) {
    /* Entferne Hover-Effekte auf Touch-Geräten */
    .btn-primary:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }

    .btn-primary:active {
        transform: scale(0.97);
        transition: transform 0.1s ease;
    }

    .btn-outline:hover {
        background: transparent;
        border-color: var(--color-border-hover);
    }

    .btn-outline:active {
        background: var(--color-bg-card);
    }

    .card:hover {
        transform: none;
        box-shadow: var(--shadow-md);
    }

    .card:active {
        transform: scale(0.98);
    }

    /* Besseres Touch-Feedback */
    a, button {
        -webkit-tap-highlight-color: rgba(10, 173, 191, 0.15);
    }

    /* Verhindere Text-Selection beim Tippen */
    .btn, .navbar-toggle, .tile, .service-card, .gallery-item {
        -webkit-user-select: none;
        user-select: none;
    }
}

/* Landscape Mobile Anpassungen */
@media (max-height: 500px) and (orientation: landscape) {
    .fullscreen-video {
        height: 100svh;
    }

    .page-header {
        min-height: 80vh;
        padding-top: calc(70px + 1rem);
    }
}

/* Print Styles */
@media print {
    .navbar,
    .fullscreen-video,
    .btn,
    .footer-menu,
    .site-footer {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}