:root {
    --color-bg: #0a0c14;
    --color-surface: #12151e;
    --color-ink: #e2e8f0;
    --color-accent: #00d4ff;
    --color-secondary-accent: #ff4081;
    --color-border: rgba(226, 232, 240, 0.1);
    --color-shadow: rgba(0, 0, 0, 0.5);

    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", "Courier New", monospace;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --transition-fast: 150ms ease;
    --transition-medium: 300ms ease;
    --transition-slow: 600ms ease;
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-ink);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
    max-width: 70ch;
}

ul, ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

button {
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

input {
    font-family: var(--font-sans);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-ink);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    width: 100%;
    max-width: 400px;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(10, 12, 20, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    transition: box-shadow var(--transition-medium);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-ink);
}

.brand-logo svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.main-nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-ink);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link:focus {
    color: var(--color-accent);
}

#menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-xs);
}

#menu-toggle .bar {
    width: 24px;
    height: 2px;
    background-color: var(--color-ink);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

#menu-toggle[aria-expanded="true"] .bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

#menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
    opacity: 0;
}

#menu-toggle[aria-expanded="true"] .bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.breadcrumbs {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-surface);
}

.breadcrumbs a {
    color: var(--color-ink);
    text-decoration: none;
}

.breadcrumbs .separator {
    margin: 0 var(--spacing-xs);
    color: var(--color-ink);
}

.breadcrumbs .current {
    color: var(--color-accent);
}

.hero {
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-md);
    align-items: center;
}

.hero-window {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    position: relative;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
}

.hero-window::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--color-accent);
    border-left: 2px solid var(--color-accent);
}

.hero-window::after {
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    width: 10px;
    height: 10px;
    border-bottom: 2px solid var(--color-secondary-accent);
    border-right: 2px solid var(--color-secondary-accent);
}

.hero-content h1 {
    margin-bottom: var(--spacing-sm);
}

.hero-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-ink);
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
}

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

.btn-primary:hover, .btn-primary:focus {
    background-color: #00b8e6;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--color-secondary-accent);
    color: var(--color-secondary-accent);
}

.btn-secondary:hover, .btn-secondary:focus {
    background-color: rgba(255, 64, 129, 0.1);
    box-shadow: 0 0 15px rgba(255, 64, 129, 0.3);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--color-accent);
    z-index: 1000;
}

.section {
    padding: var(--spacing-lg) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
}

.stat-number {
    display: block;
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--color-ink);
    opacity: 0.8;
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-content h2 {
    margin-bottom: var(--spacing-md);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.architectural-drawing {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.2));
}

.features-grid, .benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card, .benefit-card {
    background-color: var(--color-surface);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover, .benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.feature-icon, .benefit-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background-color: var(--color-surface);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
}

.testimonial-stars {
    color: var(--color-secondary-accent);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.testimonial-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-accent);
    color: var(--color-bg);
    border-radius: 50%;
    font-weight: 700;
    margin-right: var(--spacing-xs);
}

.testimonial-card footer {
    display: flex;
    align-items: center;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--color-border);
    clip-path: polygon(0 0, 100% 0, 100% 90%, 90% 100%, 0 100%);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    background-color: var(--color-surface);
    transition: background-color var(--transition-fast);
}

.faq-question:hover, .faq-question:focus {
    background-color: rgba(226, 232, 240, 0.05);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
    background-color: var(--color-surface);
}

.faq-answer p {
    padding: var(--spacing-md);
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info h2 {
    margin-bottom: var(--spacing-md);
}

.contact-info address {
    font-style: normal;
    margin-top: var(--spacing-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-field label {
    font-weight: 500;
}

.field-error {
    color: var(--color-secondary-accent);
    font-size: 0.875rem;
}

.cta-banner {
    background-color: var(--color-surface);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.cta-banner h2 {
    margin-bottom: var(--spacing-sm);
}

.cta-banner p {
    margin: 0 auto var(--spacing-md);
}

.site-footer {
    background-color: var(--color-surface);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.footer-column h3 {
    margin-bottom: var(--spacing-sm);
}

.footer-column address {
    font-style: normal;
    line-height: 1.8;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    z-index: 1000;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-banner .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.cookie-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.legal-page {
    max-width: 800px;
    margin: 0 auto;
}

.legal-page h1 {
    margin-bottom: var(--spacing-md);
}

.legal-intro {
    margin-bottom: var(--spacing-lg);
}

.legal-page h2 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.legal-page p {
    margin-bottom: var(--spacing-md);
}

.cookie-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-md);
}

.cookie-table th, .cookie-table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}

.cookie-table th {
    background-color: var(--color-surface);
    color: var(--color-accent);
}

.thank-you-section {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.thank-you-card {
    background-color: var(--color-surface);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
    text-align: center;
    max-width: 600px;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent);
}

.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

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

.coordinate-grid {
    width: 100%;
    height: auto;
}

.coordinate-grid line {
    stroke-dasharray: 10, 5;
    animation: drawGrid 2s linear infinite;
}

.coordinate-grid rect {
    stroke-dasharray: 20, 10;
    animation: drawRect 3s linear infinite;
}

@keyframes drawGrid {
    from { stroke-dashoffset: 100; }
    to { stroke-dashoffset: 0; }
}

@keyframes drawRect {
    from { stroke-dashoffset: 200; }
    to { stroke-dashoffset: 0; }
}

@media (max-width: 768px) {
    #menu-toggle {
        display: flex;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-surface);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
    }

    .main-nav.open {
        display: flex;
    }

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

    .hero-window {
        clip-path: none;
    }

    .about-layout, .contact-layout {
        grid-template-columns: 1fr;
    }

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

    .cookie-banner .container {
        flex-direction: column;
        text-align: center;
    }

    .cookie-actions {
        justify-content: center;
    }
}