/* ===================================
   LPB GmbH Website - Main Stylesheet
   Version: 2.0.0 — Visual Refresh
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #FF8C00;
    --color-primary-light: rgba(255, 140, 0, 0.08);
    --color-primary-glow: rgba(255, 140, 0, 0.15);
    --color-secondary: #1565C0;
    --color-accent: #0D2137;
    --color-success: #2E7D32;
    --color-text: #1A1A2E;
    --color-text-light: #5A5A7A;
    --color-bg: #FFFFFF;
    --color-bg-light: #F7F8FC;
    --color-bg-warm: #FFFBF5;
    --color-border: #E8EAF0;

    /* Typography */
    --font-heading: 'Montserrat', 'Segoe UI', system-ui, sans-serif;
    --font-body: 'Open Sans', 'Segoe UI', system-ui, sans-serif;

    /* Font Sizes — fluid */
    --fs-h1: clamp(2rem, 5vw, 3.5rem);
    --fs-h2: clamp(1.5rem, 3.5vw, 2.25rem);
    --fs-h3: clamp(1.125rem, 2.5vw, 1.5rem);
    --fs-body: 1rem;
    --fs-small: 0.875rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --spacing-2xl: 7rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 4px 20px rgba(255, 140, 0, 0.2);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

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

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

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

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: 2px;
}

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

/* Container */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Section Spacing */
section {
    padding: var(--spacing-2xl) 0;
}

/* Section divider */
.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #E67E00);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
    transform: translateY(0);
}

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

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

/* Cards */
.card {
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

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

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

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Utility Classes */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.bg-light { background-color: var(--color-bg-light); }
.bg-warm { background-color: var(--color-bg-warm); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Responsive Typography */
@media (max-width: 768px) {
    section {
        padding: var(--spacing-xl) 0;
    }
}

/* ===================================
   No External Fonts (DSGVO)
   =================================== */
.no-external-fonts {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif !important;
}
.no-external-fonts h1,
.no-external-fonts h2,
.no-external-fonts h3,
.no-external-fonts h4,
.no-external-fonts h5,
.no-external-fonts h6 {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif !important;
}

/* ===================================
   Impressum & Datenschutz Pages
   =================================== */
.impressum-content,
.datenschutz-content {
    padding: var(--spacing-xl) 0;
}

.impressum-card,
.datenschutz-card {
    margin-bottom: 2rem;
}

.impressum-card h2,
.datenschutz-card h2 {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
}

.impressum-card h3,
.datenschutz-card h3 {
    color: var(--color-text);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.impressum-card p,
.datenschutz-card p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.datenschutz-card ul {
    margin-bottom: 1rem;
    padding-left: 2rem;
    line-height: 1.8;
}

.datenschutz-card ul li {
    margin-bottom: 0.5rem;
}

.impressum-card a,
.datenschutz-card a {
    color: var(--color-primary);
    text-decoration: none;
}

.impressum-card a:hover,
.datenschutz-card a:hover {
    text-decoration: underline;
}