:root {
    --bg-primary: #0a0c10;
    --bg-secondary: #12151c;
    --bg-tertiary: #1b2029;
    
    --text-primary: #f0f2f5;
    --text-secondary: #a0a6b1;
    --text-muted: #626a76;
    
    --accent-blue: #4a9eff;
    --accent-green: #42b883;
    --accent-purple: #9d7cff;
    
    --border: #2a313d;
    --border-light: #3d4655;
    
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, sans-serif;
    
    --radius: 4px;
    --space-md: 1.5rem;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
}

h1, h2, h3, .logo {
    font-family: var(--font-mono);
    font-weight: 700;
}

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

a:hover {
    text-decoration: underline;
}

/* Header */
header {
    border-bottom: 1px solid var(--border);
    background: rgba(10, 12, 16, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.logo-tld {
    color: var(--text-muted);
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background: #36a372;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Hero */
.hero {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-inner {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.terminal-header {
    background: var(--bg-tertiary);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-header .title {
    margin-left: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.hero-content {
    padding: 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero .description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
}

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

/* Sections */
.section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-alt {
    max-width: 100%;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-title {
    font-size: 2rem;
    margin-bottom: 4rem;
    text-align: center;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: var(--radius);
    transition: border-color 0.2s;
}

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

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--accent-blue);
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Calculator */
.calc-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.input-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.input-group input, .input-group select {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: var(--radius);
    font-family: var(--font-mono);
}

.calc-result {
    padding: 3rem;
    border: 2px dashed var(--accent-green);
    border-radius: 8px;
    text-align: center;
}

.savings-label {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.savings-value {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.savings-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1.5rem;
}

/* Sectors */
.sectors-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.sector-tag {
    display: inline-block;
    background: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-purple);
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.sector-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Manifesto */
.manifesto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.manifesto-item h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.manifesto-item p {
    color: var(--text-secondary);
}

/* Footer */
footer {
    padding: 4rem 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-logo {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
}

.copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Responsive */
@media (max-width: 800px) {
    .hero h1 { font-size: 2.5rem; }
    .hero-content { padding: 2rem; }
    .calc-container { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}