/* ============================================
   KINVEX LABS - Main Stylesheet
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0a0a0b;
    --color-bg-secondary: #111113;
    --color-bg-tertiary: #18181b;
    --color-bg-elevated: #1f1f23;

    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #71717a;
    --color-text-muted: #52525b;

    --color-accent: #6366f1;
    --color-accent-light: #818cf8;
    --color-accent-dark: #4f46e5;
    --color-accent-subtle: rgba(99, 102, 241, 0.1);
    --color-accent-glow: rgba(99, 102, 241, 0.15);

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.12);
    --color-border-accent: rgba(99, 102, 241, 0.3);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    /* 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;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
}

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

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section-header {
    margin-bottom: var(--space-3xl);
}

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

.section-header.center .section-subtitle {
    margin: 0 auto;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), 0 0 30px var(--color-accent-glow);
}

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

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

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1rem;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.nav.scrolled {
    border-bottom-color: var(--color-border);
}

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

@media (min-width: 768px) {
    .nav-container {
        padding: var(--space-md) var(--space-xl);
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
}

.nav-links {
    display: none;
    align-items: center;
    gap: var(--space-xl);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

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

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

.nav-links .nav-cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent-subtle);
    color: var(--color-accent-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-accent);
}

.nav-links .nav-cta:hover {
    background: var(--color-accent);
    color: white;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    cursor: pointer;
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.nav-toggle.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 99;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none;
    }
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mobile-menu-links a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-5xl) 0 var(--space-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

#hero-canvas {
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

.hero-image {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.15;
    filter: saturate(0.3);
}

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

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

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.hero-headline {
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
}

.hero-subheadline {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-meaning {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    max-width: fit-content;
}

.meaning-icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--color-text-tertiary);
    margin-top: 2px;
}

.meaning-icon svg {
    width: 100%;
    height: 100%;
}

.meaning-text {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    line-height: 1.5;
}

.meaning-text strong {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    animation: float 2s ease-in-out infinite;
}

.hero-scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.hero-scroll a:hover {
    color: var(--color-text-primary);
}

.hero-scroll svg {
    width: 24px;
    height: 24px;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   Vendor Section
   ============================================ */

.vendor {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.vendor-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.vendor-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-border-accent);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-accent-light);
    margin-bottom: var(--space-xl);
}

.vendor-badge svg {
    width: 16px;
    height: 16px;
}

.vendor-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

@media (min-width: 640px) {
    .vendor-info {
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: var(--space-2xl);
    }
}

.vendor-detail {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.vendor-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
}

.vendor-value {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.vendor-value a {
    color: var(--color-accent-light);
    transition: color var(--transition-fast);
}

.vendor-value a:hover {
    color: var(--color-accent);
}

.vendor-divider {
    display: none;
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

@media (min-width: 640px) {
    .vendor-divider {
        display: block;
    }
}

.vendor-note {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* ============================================
   Capabilities Section
   ============================================ */

.capabilities {
    padding: var(--space-5xl) 0;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .capabilities-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

.capability-card:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.capability-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.capability-icon svg {
    width: 24px;
    height: 24px;
}

.capability-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.capability-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

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

.process {
    padding: var(--space-5xl) 0;
    background: var(--color-bg-secondary);
}

.process-steps {
    max-width: 700px;
    margin: 0 auto;
}

.process-step {
    position: relative;
    display: flex;
    gap: var(--space-xl);
    padding-bottom: var(--space-3xl);
}

.process-step:last-child {
    padding-bottom: 0;
}

.process-number {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    border-radius: 50%;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
}

.process-content {
    flex: 1;
    padding-top: var(--space-sm);
}

.process-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.process-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.process-line {
    position: absolute;
    left: 23px;
    top: 56px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
}

.process-step:last-child .process-line {
    display: none;
}

/* ============================================
   Ventures Section
   ============================================ */

.ventures {
    padding: var(--space-5xl) 0;
}

.ventures-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .ventures-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .ventures-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.venture-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.venture-card:hover {
    border-color: var(--color-border-light);
}

.venture-placeholder {
    border-style: dashed;
}

.venture-status {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
}

.venture-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-lg);
}

.venture-icon svg {
    width: 24px;
    height: 24px;
}

.venture-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.venture-desc {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    line-height: 1.6;
}

/* ============================================
   About Section
   ============================================ */

.about {
    padding: var(--space-5xl) 0;
    background: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 1fr 280px;
    }
}

.about-bio p {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-bio p:last-child {
    margin-bottom: 0;
}

.about-bio strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.about-tagline {
    font-style: italic;
    color: var(--color-text-tertiary) !important;
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-lg);
}

.about-visual {
    display: none;
    justify-content: center;
}

@media (min-width: 768px) {
    .about-visual {
        display: flex;
    }
}

.about-image {
    width: 280px;
    height: 320px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    position: relative;
}

.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.8);
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    padding: var(--space-5xl) 0;
}

.contact-content {
    max-width: 560px;
    margin: 0 auto;
}

.contact-content .section-header {
    text-align: center;
}

.contact-coming-soon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
    padding: var(--space-3xl) var(--space-xl);
    background: var(--color-bg-secondary);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
}

.coming-soon-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-tertiary);
}

.coming-soon-icon svg {
    width: 18px;
    height: 18px;
}

.coming-soon-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.coming-soon-note {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

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

.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 640px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.footer-logo .logo-icon {
    width: 24px;
    height: 24px;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    font-style: italic;
}

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

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

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

.footer-bottom {
    padding-top: var(--space-xl);
    text-align: center;
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ============================================
   Animations
   ============================================ */

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

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

/* Stagger animation delays for cards */
.capabilities-grid .capability-card:nth-child(1) { transition-delay: 0ms; }
.capabilities-grid .capability-card:nth-child(2) { transition-delay: 50ms; }
.capabilities-grid .capability-card:nth-child(3) { transition-delay: 100ms; }
.capabilities-grid .capability-card:nth-child(4) { transition-delay: 150ms; }
.capabilities-grid .capability-card:nth-child(5) { transition-delay: 200ms; }
.capabilities-grid .capability-card:nth-child(6) { transition-delay: 250ms; }
.capabilities-grid .capability-card:nth-child(7) { transition-delay: 300ms; }

.ventures-grid .venture-card:nth-child(1) { transition-delay: 0ms; }
.ventures-grid .venture-card:nth-child(2) { transition-delay: 50ms; }
.ventures-grid .venture-card:nth-child(3) { transition-delay: 100ms; }

/* ============================================
   Utility Classes
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}