/* Unikraft Design System - Inspired by C3.ai, Tesla, x.ai */

:root {
    --bg-color: #000000;
    --bg-secondary: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-primary: #00f0ff;
    /* Cyan/Electric Blue */
    --accent-secondary: #0057ff;
    /* Deep Blue */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    --transition-speed: 0.3s;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

ul {
    list-style: none;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 4rem;
    line-height: 1.1;
    background: linear-gradient(to right, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
    color: var(--text-primary);
}

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

nav ul {
    display: flex;
    gap: 2rem;
}

nav a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

nav a:hover {
    color: var(--accent-primary);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 5%;
    background: radial-gradient(circle at center, #1a1a1a 0%, #000000 70%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: transparent;
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 4px;
    transition: all var(--transition-speed);
}

.cta-button:hover {
    background: var(--accent-primary);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

/* Section Common */
section {
    padding: 8rem 5%;
}

.section-header {
    margin-bottom: 4rem;
    text-align: left;
}

.section-header h2 {
    border-left: 4px solid var(--accent-primary);
    padding-left: 1rem;
}

/* Consulting Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 8px;
    transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.service-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Products Section */
.product-showcase {
    display: flex;
    flex-direction: column;
    gap: 8rem;
}

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

.product-item.reverse {
    direction: rtl;
}

.product-item.reverse .product-content {
    direction: ltr;
}

.product-visual {
    background: var(--bg-secondary);
    height: 400px;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.product-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.03));
}

.product-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

.product-content .tagline {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.feature-list {
    margin-top: 2rem;
}

.feature-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
}

.feature-list li::before {
    content: '>';
    color: var(--accent-primary);
    margin-right: 1rem;
    font-family: var(--font-mono);
}

/* Water Dispenser Flow */
.process-steps {
    margin-top: 2rem;
    display: grid;
    gap: 1.5rem;
}

.step {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-left: 2px solid var(--glass-border);
}

.step-number {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    display: block;
}

/* Footer */
footer {
    padding: 4rem 5%;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 2rem;
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .product-item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-item.reverse {
        direction: ltr;
    }

    header {
        padding: 1rem 5%;
    }

    nav ul {
        display: none;
        /* Mobile menu to be implemented if needed */
    }
}