/* Design System - WChewoqer.com (Technical Engineering) */

:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --accent-rgb: 6, 182, 212;
    --text-white: #ffffff;
    --text-gray: #94a3b8;
    --text-dark: #1e293b;
    --bg-light: #f8fafc;
    --border-color: #334155;
    --border-light: #cbd5e1;
    --font-mono: 'IBM Plex Mono', monospace;
    --font-sans: 'Inter', sans-serif;
    --transition: all 0.2s ease-in-out;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background-color: var(--bg-dark);
    color: var(--text-white);
    border-bottom: 2px solid var(--border-color);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 1px;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 14px;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--accent-dark);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--text-white);
}

/* Hero Section */
.hero {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: 80px 0 100px;
    border-bottom: 4px solid var(--accent);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.tech-tag {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 14px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.hero-content h1 {
    font-family: 'Space Grotesk', var(--font-sans);
    font-size: 40px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-content p {
    color: var(--text-gray);
    font-size: 16px;
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-diagram {
    display: flex;
    justify-content: center;
}

.technical-svg {
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 440px;
}

/* Sections */
.section {
    padding: 80px 0;
}

.bg-light {
    background-color: #f1f5f9;
}

.bg-tech {
    background-color: #1e293b;
    color: var(--text-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    margin-bottom: 48px;
    max-width: 600px;
}

.section-header h2 {
    font-family: 'Space Grotesk', var(--font-sans);
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--bg-dark);
}

.section-header p {
    color: #475569;
    font-size: 15px;
}

/* Specs Grid */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.spec-card {
    background-color: var(--white);
    border: 1px solid var(--border-light);
    padding: 24px;
    border-radius: 4px;
    transition: var(--transition);
}

.spec-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.spec-code {
    font-family: var(--font-mono);
    color: var(--accent-dark);
    font-size: 12px;
    display: block;
    margin-bottom: 12px;
}

.spec-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--bg-dark);
}

.spec-card p {
    font-size: 14px;
    color: #475569;
}

/* Regulations (Water Code) */
.reg-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.reg-content h2 {
    font-family: 'Space Grotesk', var(--font-sans);
    font-size: 28px;
    margin-bottom: 20px;
}

.reg-content p {
    color: var(--text-gray);
    margin-bottom: 24px;
}

.tech-parameters {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.param {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.param-num {
    font-family: var(--font-mono);
    color: var(--accent);
    font-weight: bold;
}

.param-text {
    font-size: 14px;
    color: var(--text-gray);
}

.reg-sidebar {
    background-color: var(--bg-dark);
    padding: 24px;
    border-left: 2px solid var(--accent);
}

.sidebar-block h4 {
    font-family: var(--font-mono);
    color: var(--accent);
    margin-bottom: 12px;
    font-size: 16px;
}

.sidebar-block p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* Projects grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-item {
    background-color: var(--white);
    border-left: 3px solid var(--bg-dark);
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.project-item h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--bg-dark);
}

.project-item p {
    font-size: 13px;
    color: #475569;
}

/* Contact Grid */
.contact-section {
    background-color: var(--white);
    border-top: 1px solid var(--border-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
}

.contact-form-container h3,
.contact-info h3 {
    font-family: 'Space Grotesk', var(--font-sans);
    font-size: 22px;
    margin-bottom: 16px;
}

.contact-form-container p {
    color: #475569;
    margin-bottom: 24px;
    font-size: 14px;
}

.tech-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--bg-dark);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.contact-info p {
    color: #475569;
    font-size: 14px;
    margin-bottom: 24px;
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-size: 14px;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-gray);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    font-family: var(--font-mono);
    color: var(--text-white);
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

.footer-left p {
    font-size: 12px;
}

.footer-right a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 13px;
    margin-left: 20px;
    font-family: var(--font-mono);
}

.footer-right a:hover {
    color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container,
    .specs-grid,
    .reg-container,
    .projects-grid,
    .contact-grid,
    .form-row {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .footer-right a {
        margin-left: 0;
        margin-right: 20px;
    }
}