:root {
    /* Color Palette - Premium Tech */
    --bg-main: #060913;
    --bg-secondary: #0c1222;
    --accent-blue: #60a5fa;
    --accent-glow: #93c5fd;
    --accent-purple: #a78bfa;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    /* Glassmorphism */
    --glass-bg: rgba(15, 23, 42, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Typography */
    --font-main: 'Outfit', sans-serif;
    
    /* Transition */
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
}

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

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

/* Typography Utility */
.text-gradient {
    background: linear-gradient(135deg, var(--accent-glow) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Glass Card Utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(6, 9, 19, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -1px;
}
.logo span {
    color: var(--accent-glow);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-glow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 99px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-main);
    font-size: 1rem;
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-glow {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

.btn-glow:hover {
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
    transform: translateY(-2px);
}

.btn-text {
    background: transparent;
    color: var(--text-secondary);
}

.btn-text:hover {
    color: var(--text-primary);
}
.btn-text span {
    margin-left: 0.5rem;
    transition: transform 0.3s;
    display: inline-block;
}
.btn-text:hover span {
    transform: translateX(5px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text .badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-glow);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.hero-text h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -2px;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Mockup Card (Hero Visual) */
.mockup-card {
    padding: 1.5rem;
    transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
    transition: transform 0.5s ease;
    animation: float 6s ease-in-out infinite;
}

.mockup-card:hover {
    transform: perspective(1000px) rotateY(-5deg) rotateX(0deg);
}

@keyframes float {
    0% { transform: perspective(1000px) rotateY(-15deg) rotateX(5deg) translateY(0); }
    50% { transform: perspective(1000px) rotateY(-15deg) rotateX(5deg) translateY(-20px); }
    100% { transform: perspective(1000px) rotateY(-15deg) rotateX(5deg) translateY(0); }
}

.mockup-header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.mockup-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}
.stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}
.stat {
    display: flex;
    flex-direction: column;
}
.stat .label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.stat .val {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-glow);
}
.progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}
.progress-bar .fill {
    width: 65%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
}


/* Features */
.features {
    padding: 8rem 0;
}
.text-center {
    text-align: center;
}
.section-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -1px;
}
.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 4rem;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.feature-card {
    padding: 2.5rem 2rem;
    text-align: left;
    transition: transform 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-10px);
}
.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}
.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.feature-card p {
    color: var(--text-secondary);
}

/* Configurator */
.configurator-section {
    padding: 5rem 0 10rem;
}
.layout-3d {
    display: grid;
    grid-template-columns: 1fr 1fr; /* 3D view | Form panel */
    min-height: 700px;
    overflow: hidden;
}

.config-3d-view {
    position: relative;
    background: #e2e8f0; /* light gray background */
    width: 100%;
    height: 100%;
    cursor: grab;
}
.config-3d-view:active {
    cursor: grabbing;
}
.loading-3d {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--accent-glow);
    font-size: 1.25rem;
    font-weight: 600;
    pointer-events: none;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}
.controls-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    z-index: 10;
    pointer-events: none;
}
.controls-overlay .hint {
    background: rgba(0,0,0,0.5);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
    color: #fff;
    pointer-events: auto;
    display: inline-block;
    margin-bottom: 10px;
}
.color-picker {
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    padding: 10px;
    border-radius: 12px;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}
.color-picker p {
    margin: 0;
    font-size: 0.9rem;
}
.color-btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s;
}
.color-btn:hover {
    transform: scale(1.1);
    border-color: #fff;
}

.config-panel {
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
}

.config-sidebar {
    padding: 2rem;
    border-bottom: 1px solid var(--glass-border);
}
.config-sidebar h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.config-sidebar .blink {
    animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.config-sidebar p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.summary-box {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 1.25rem;
    border: 1px solid var(--glass-border);
}
.summary-box h4 {
    margin-bottom: 0.75rem;
    font-size: 1rem;
}
#summary-list {
    list-style: none;
    margin-bottom: 1rem;
    min-height: 80px;
}
#summary-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
}
#summary-list li span.val {
    color: var(--text-primary);
}
.empty-state {
    font-style: italic;
    opacity: 0.5;
}
.total-price {
    font-size: 1rem;
    font-weight: 700;
    border-top: 1px solid var(--glass-border);
    padding-top: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.total-price span {
    color: var(--accent-glow);
    font-size: 1.25rem;
}

/* Config Main */
.config-main {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
}
.config-step {
    display: none;
    animation: fadeIn 0.4s ease;
}
.config-step.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.config-step h3 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.option-card {
    cursor: pointer;
}
.option-card input {
    display: none;
}
.card-inner {
    background: rgba(255,255,255,0.03);
    border: 2px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}
.card-inner:hover {
    background: rgba(255,255,255,0.08);
}
.option-card input:checked + .card-inner {
    border-color: var(--accent-glow);
    background: rgba(59, 130, 246, 0.1);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}
.card-inner .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}
.card-inner .title {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.card-inner .desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Checkbox Cards */
.options-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.checkbox-card {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}
.checkbox-card input {
    display: none;
}
.checkbox-card:hover {
    background: rgba(255,255,255,0.05);
}
.checkbox-card input:checked ~ .details .title {
    color: var(--accent-glow);
}
.checkbox-card input:checked ~ .check-indicator {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}
.checkbox-card input:checked ~ .check-indicator::after {
    content: '✓';
    color: white;
    font-weight: bold;
    display: block;
    text-align: center;
    line-height: 20px;
    font-size: 14px;
}
.check-indicator {
    width: 24px;
    height: 24px;
    border: 2px solid var(--text-secondary);
    border-radius: 6px;
    margin-right: 1.5rem;
    transition: var(--transition);
}
.checkbox-card .details {
    flex: 1;
}
.checkbox-card .title {
    display: block;
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    transition: var(--transition);
}
.checkbox-card .desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.input-field {
    width: 100%;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
}
.input-field:focus {
    outline: none;
    border-color: var(--accent-glow);
    background: rgba(255,255,255,0.08);
}
textarea.input-field {
    resize: vertical;
}

/* Step Navigation */
.step-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0;
    margin-top: auto;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-text h1 {
        font-size: 3.5rem;
    }
    .hero-text p {
        margin: 0 auto 2.5rem;
    }
    .hero-actions {
        justify-content: center;
    }
    .mockup-card {
        margin: 0 auto;
        max-width: 500px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .layout-3d {
        grid-template-columns: 1fr;
        grid-template-rows: 400px auto;
        min-height: auto;
        overflow: visible;
    }
    .config-3d-view {
        position: sticky;
        top: 70px; /* Wysokość nawigacji */
        z-index: 100;
        box-shadow: 0 10px 30px rgba(0,0,0,0.5); /* Cień oddzielający płynące 3D od formularza */
    }
    .controls-overlay .hint {
        display: none; /* Ukrycie opisów/podpowiedzi na telefonie */
    }
    .color-picker p {
        display: none; /* Ukrycie tekstu nad wybierakiem kolorów dla oszczędności miejsca */
    }
    .config-main {
        overflow-y: visible;
    }
    .config-panel {
        border-left: none;
        border-top: 1px solid var(--glass-border);
    }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .options-grid {
        grid-template-columns: 1fr;
    }
    .hero-text h1 {
        font-size: 2.5rem;
    }
    .layout-3d {
        grid-template-rows: 350px auto;
    }
    .config-sidebar, .config-main {
        padding: 1.5rem 1rem;
    }
    .checkbox-card {
        padding: 1rem;
    }
    .check-indicator {
        margin-right: 1rem;
    }
    footer .footer-content {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        gap: 1.5rem;
    }
    footer .footer-content > div:nth-child(2) {
        flex-direction: column;
        gap: 1rem;
    }
}
@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2.2rem;
    }
    .layout-3d {
        grid-template-rows: 300px auto;
    }
    .step-navigation {
        flex-direction: column-reverse;
        gap: 1rem;
    }
    .step-navigation .btn {
        width: 100%;
        text-align: center;
    }
}