/* NovaPact Corporate Website - Global Styles */
/* Version: 1.0 | Date: 30. Dezember 2024 */

/* Import Inter Font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ===========================
   1. CSS Variables (Design System)
   =========================== */

:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-accent-primary: #3b4a6b;
    --color-accent-secondary: #5a6c8f;
    --color-border: rgba(255, 255, 255, 0.05);
    --color-border-hover: rgba(255, 255, 255, 0.1);
    --color-card-bg: rgba(255, 255, 255, 0.02);
    --color-badge-bg: rgba(59, 74, 107, 0.1);
    --color-badge-border: rgba(59, 74, 107, 0.3);
    --color-badge-text: #5a6c8f;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-h1-desktop: 48px;
    --font-size-h1-mobile: 36px;
    --font-size-h2-desktop: 32px;
    --font-size-h2-mobile: 28px;
    --font-size-h3-desktop: 24px;
    --font-size-h3-mobile: 20px;
    --font-size-body-desktop: 18px;
    --font-size-body-mobile: 16px;
    --font-size-small: 14px;
    
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-heading: 1.2;
    --line-height-body: 1.8;
    --line-height-relaxed: 2.0;
    
    /* Layout */
    --max-width-standard: 1200px;
    --max-width-text: 800px;
    --max-width-form: 600px;
    --padding-section-desktop: 6rem 2rem;
    --padding-section-mobile: 3rem 1rem;
    --gap-grid: 2rem;
    
    /* Transitions */
    --transition-default: 0.3s ease;
    
    /* Shadows */
    --shadow-glow: 0 0 20px rgba(59, 74, 107, 0.3);
}

/* ===========================
   2. Reset & Base Styles
   =========================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-body-mobile);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===========================
   3. Typography
   =========================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    margin-bottom: 1rem;
}

h1 {
    font-size: var(--font-size-h1-mobile);
}

h2 {
    font-size: var(--font-size-h2-mobile);
    font-weight: var(--font-weight-semibold);
}

h3 {
    font-size: var(--font-size-h3-mobile);
    font-weight: var(--font-weight-semibold);
}

p {
    margin-bottom: 1.5rem;
    color: var(--color-text-secondary);
}

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

a:hover {
    color: #6a7c9f;
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-accent-secondary);
    outline-offset: 2px;
}

/* ===========================
   4. Layout Containers
   =========================== */

.container {
    max-width: var(--max-width-standard);
    margin: 0 auto;
    padding: 0 2rem;
}

.container-text {
    max-width: var(--max-width-text);
    margin: 0 auto;
}

.container-form {
    max-width: var(--max-width-form);
    margin: 0 auto;
}

section {
    padding: var(--padding-section-mobile);
}

/* ===========================
   5. Navigation
   =========================== */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    height: 80px;
}

.nav-container {
    max-width: var(--max-width-standard);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    text-decoration: none;
}

.nav-logo:hover {
    text-decoration: none;
}

.nav-menu {
    display: none;
    list-style: none;
    gap: 3rem;
}

.nav-menu a {
    font-size: 16px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.nav-menu a:hover {
    color: var(--color-text-primary);
    text-decoration: none;
}

.nav-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 24px;
    cursor: pointer;
}

/* Mobile Menu Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.95);
    z-index: 999;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.nav-overlay.active {
    display: flex;
}

.nav-overlay a {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

/* ===========================
   6. Buttons
   =========================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 16px;
    font-weight: var(--font-weight-semibold);
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-default);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: #4a5a7c;
    text-decoration: none;
}

.btn-secondary {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
}

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

.btn-float:hover {
    background-color: #4a5a7c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    text-decoration: none;
}

/* ===========================
   7. Cards
   =========================== */

.card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    transition: border-color var(--transition-default);
}

.card:hover {
    border-color: var(--color-border-hover);
}

.card h3 {
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.card p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.card ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.card ul li {
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.card ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent-secondary);
}

/* ===========================
   8. Badges
   =========================== */

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-semibold);
    color: var(--color-badge-text);
    background: var(--color-badge-bg);
    border: 1px solid var(--color-badge-border);
    border-radius: 50px;
}

/* ===========================
   9. Forms
   =========================== */

form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

label {
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    display: block;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 0.75rem;
    font-family: var(--font-family);
    font-size: 16px;
    color: var(--color-text-primary);
    background: var(--color-card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: border-color var(--transition-default);
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
    outline: none;
    border-color: rgba(59, 74, 107, 0.5);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

.checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
}

/* ===========================
   10. Grid System
   =========================== */

.grid {
    display: grid;
    gap: var(--gap-grid);
}

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

.grid-4 {
    grid-template-columns: 1fr;
}

/* ===========================
   11. Hero Section
   =========================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 8rem;
    padding-bottom: 4rem;
}

.hero h1 {
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: var(--font-size-body-desktop);
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

/* ===========================
   12. Trust Badges
   =========================== */

.trust-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 4rem 0;
    text-align: center;
}

.trust-badge {
    padding: 1rem;
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

/* ===========================
   13. Footer
   =========================== */

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

.footer-content {
    max-width: var(--max-width-standard);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-small);
}

.footer-bottom {
    max-width: var(--max-width-standard);
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-small);
}

/* ===========================
   14. Utility Classes
   =========================== */

.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mb-3 {
    margin-bottom: 3rem;
}

.mt-1 {
    margin-top: 1rem;
}

.mt-2 {
    margin-top: 2rem;
}

.mt-3 {
    margin-top: 3rem;
}

/* ===========================
   15. Accessibility
   =========================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Skip to content link */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-accent-primary);
    color: var(--color-text-primary);
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

/* ===========================
   16. Responsive Design (Desktop)
   =========================== */

@media (min-width: 768px) {
    /* Typography */
    body {
        font-size: var(--font-size-body-desktop);
    }
    
    h1 {
        font-size: var(--font-size-h1-desktop);
    }
    
    h2 {
        font-size: var(--font-size-h2-desktop);
    }
    
    h3 {
        font-size: var(--font-size-h3-desktop);
    }
    
    /* Layout */
    section {
        padding: var(--padding-section-desktop);
    }
    
    /* Navigation */
    .nav-menu {
        display: flex;
    }
    
    .nav-toggle {
        display: none;
    }
    
    /* Grid */
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Hero */
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
    
    /* Trust Badges */
    .trust-badges {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===========================
   17. Print Styles
   =========================== */

@media print {
    nav,
    footer,
    .btn {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    a {
        text-decoration: underline;
    }
}