/* ============================================
   NOVAI SYSTEMS - Enterprise Design System
   ============================================ */

:root {
    /* Core Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --bg-elevated: #22222e;
    
    /* Accent Colors */
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --accent-muted: #1e3a5f;
    --accent-glow: rgba(59, 130, 246, 0.15);
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Status Colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #06b6d4;
    
    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(59, 130, 246, 0.3);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* ============================================
   Reset & Base
   ============================================ */

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

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* ============================================
   Layout
   ============================================ */

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

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.logo-nova {
    color: var(--accent-primary);
    font-size: 1.25rem;
}

.logo-systems {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl) var(--space-lg);
    background: 
        radial-gradient(ellipse at 30% 20%, var(--accent-glow) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        var(--bg-primary);
}

.hero-content {
    max-width: 720px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--accent-secondary);
    margin-bottom: var(--space-lg);
    font-weight: 500;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xl);
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 24px var(--accent-glow);
}

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

.btn-secondary:hover {
    border-color: var(--accent-primary);
    background: var(--accent-glow);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.0625rem;
}

/* ============================================
   Value Props Section
   ============================================ */

.value-props {
    padding: var(--space-3xl) var(--space-lg);
    background: var(--bg-secondary);
}

.value-props h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--space-2xl);
}

.props-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.prop-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.prop-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.prop-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: var(--space-md);
}

.prop-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.prop-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ============================================
   Founder Section
   ============================================ */

.founder-section {
    padding: var(--space-3xl) var(--space-lg);
}

.founder-card {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
}

.founder-photo {
    flex-shrink: 0;
}

.photo-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-muted), var(--accent-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.founder-info h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.founder-title {
    color: var(--accent-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.founder-bio {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ============================================
   Process Section
   ============================================ */

.process-section {
    padding: var(--space-3xl) var(--space-lg);
    background: var(--bg-secondary);
}

.process-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--space-2xl);
}

.process-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.step {
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0 auto var(--space-md);
}

.step h4 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.step p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--border-light);
    margin-top: 24px;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.cta-section > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.contact-info {
    margin-top: var(--space-xl);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: var(--space-2xl) var(--space-lg);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: var(--space-xs);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-legal {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.footer-legal p {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.footer-disclaimer {
    margin-top: var(--space-sm);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Forms
   ============================================ */

.form-section {
    margin-bottom: var(--space-2xl);
}

.form-section-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.form-label.required::after {
    content: " *";
    color: var(--error);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    font-size: 0.9375rem;
    font-family: inherit;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

/* Checkbox and Radio Groups */
.checkbox-group,
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.checkbox-item,
.radio-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    cursor: pointer;
}

.checkbox-item input,
.radio-item input {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.checkbox-item span,
.radio-item span {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* Form Validation */
.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--error);
}

.form-error {
    font-size: 0.75rem;
    color: var(--error);
    margin-top: var(--space-xs);
    display: none;
}

.form-error.visible {
    display: block;
}

/* ============================================
   Cards (Assessment)
   ============================================ */

.assessment-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.assessment-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
}

.assessment-card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.assessment-badge {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
}

.badge-low {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.badge-medium {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-high {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.badge-info {
    background: var(--accent-glow);
    color: var(--accent-secondary);
}

/* ============================================
   Data Display
   ============================================ */

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.data-item {
    padding: var(--space-md);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
}

.data-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
}

.data-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* List Display */
.item-list {
    list-style: none;
}

.item-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.item-list li:last-child {
    border-bottom: none;
}

.item-list li::before {
    content: "→";
    color: var(--accent-primary);
    margin-right: var(--space-sm);
}

/* Safety Fence */
.safety-fence {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.safety-fence-title {
    color: var(--error);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.safety-fence ul {
    list-style: none;
}

.safety-fence li {
    padding: var(--space-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.safety-fence li::before {
    content: "⊘";
    color: var(--error);
    margin-right: var(--space-sm);
}

/* ============================================
   Alerts / Notices
   ============================================ */

.notice {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: var(--space-lg);
}

.notice-info {
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    color: var(--accent-secondary);
}

.notice-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

.notice-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--success);
}

/* ============================================
   Page Layouts
   ============================================ */

.page-header {
    padding: calc(80px + var(--space-2xl)) var(--space-lg) var(--space-2xl);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
}

.page-content {
    padding: var(--space-2xl) var(--space-lg);
}

/* ============================================
   Loading States
   ============================================ */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .founder-card {
        flex-direction: column;
        text-align: center;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
    
    .step-connector {
        width: 2px;
        height: 40px;
        margin: 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
    
    .data-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .nav, .hero-cta, .btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .assessment-card {
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}