:root {
    --bg-dark: #050508;
    --bg-surface: #0a0a0f;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-blue: #0ea5e9;
    --accent-purple: #8b5cf6;
    --accent-teal: #14b8a6;
    
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-hover: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-hover: rgba(255, 255, 255, 0.15);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    font-size: 16px;
}

/* Background Ambient */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    animation-delay: 0s;
}

.orb-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
    animation-delay: -5s;
}

.orb-3 {
    top: 40%;
    left: 50%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--accent-teal) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation-delay: -10s;
    opacity: 0.2;
}

.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)" opacity="0.05"/%3E%3C/svg%3E');
    z-index: -1;
    pointer-events: none;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(3%, 5%) scale(1.05); }
    66% { transform: translate(-2%, 2%) scale(0.95); }
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    background: linear-gradient(to right, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
    position: relative;
}

.alternate-bg {
    background: linear-gradient(to bottom, transparent, rgba(10, 10, 15, 0.8), transparent);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header p {
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.2rem 0;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(5, 5, 8, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

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

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

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

.btn-outline:hover {
    background: var(--text-primary);
    color: var(--bg-dark);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge {
    background: rgba(139, 92, 246, 0.1);
    color: #c4b5fd;
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 2rem;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 600px;
}

.hero-text-secondary {
    font-size: 1.05rem;
    color: #888891;
    max-width: 650px;
    margin-bottom: 2.5rem;
}

.hero-text-secondary p {
    margin-bottom: 0.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.6;
    animation: bounce 2s infinite;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-secondary);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

@keyframes scroll {
    0% { top: 6px; opacity: 1; }
    100% { top: 16px; opacity: 0; }
}

/* Tags Grid */
.tags-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.tag-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
    flex: 1 1 calc(33.333% - 1.5rem);
    min-width: 250px;
    max-width: 350px;
}

.tag-card:hover {
    background: var(--card-hover);
    border-color: var(--card-border-hover);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.tag-icon {
    font-size: 2rem;
    background: rgba(255, 255, 255, 0.05);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.tag-card h3 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

/* Steps (Jak pracujeme) */
.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    position: relative;
}

.step-card {
    flex: 1;
    position: relative;
    padding: 2rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    text-align: left;
    height: 100%;
}

.step-card:hover {
    border-color: var(--accent-blue);
    background: linear-gradient(to bottom right, rgba(14, 165, 233, 0.05), transparent);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.1);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    line-height: 1;
}

.step-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.step-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.step-line {
    flex-shrink: 0;
    width: 2rem;
    height: 1px;
    background: var(--card-border);
    margin-top: 4rem;
}

/* Project Showcase */
.project-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.project-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-teal));
}

.project-info {
    position: relative;
    z-index: 2;
}

.project-badge {
    display: inline-block;
    color: var(--accent-teal);
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.project-info h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.project-desc {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.project-features {
    list-style: none;
    margin-bottom: 2.5rem;
}

.project-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.project-features li span {
    color: var(--accent-blue);
    font-weight: bold;
}

.project-image-wrapper {
    position: relative;
    border-radius: var(--radius-md);
}

.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, transparent 70%);
    filter: blur(40px);
    z-index: 1;
}

.project-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--card-border);
    transition: transform 0.5s ease;
}

.project-showcase:hover .project-image {
    transform: scale(1.02) translateY(-5px);
}

/* Vision Section */
.vision-section {
    padding-bottom: 10rem;
}

.vision-box {
    text-align: center;
    padding: 5rem 2rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(0, 0, 0, 0.2));
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.vision-box::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 200px;
    background: var(--accent-blue);
    filter: blur(100px);
    opacity: 0.2;
    border-radius: 50%;
}

.vision-text {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: var(--text-primary);
}

.vision-highlight {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: transparent;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    margin: 0;
}

/* Footer */
.footer {
    border-top: 1px solid var(--card-border);
    padding: 4rem 0 2rem;
    background: #030305;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    color: var(--text-secondary);
}

.footer-brand .copyright {
    margin-top: 2rem;
    font-size: 0.9rem;
    color: #666;
}

.footer-contact h4 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-contact address {
    font-style: normal;
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-contact strong {
    color: var(--text-primary);
}

/* Utilities */
.glass-panel {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Animations */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.reveal-up.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .project-showcase {
        grid-template-columns: 1fr;
        padding: 2rem;
    }
    
    .project-image-wrapper {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .steps-container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .hidden-mobile {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .tag-card {
        flex: 1 1 100%;
        max-width: 100%;
    }
    
    .vision-text {
        font-size: 1.1rem;
    }
}