/* ==========================================================================
   CreativeBrio — Core Premium Design System (styles.css)
   Aesthetic Principles: Less is More, Typography First, Structured Restraint
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Global Reset & CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Color System */
    --color-bg: #050505;
    --color-surface: #09090b;
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-glow: rgba(255, 255, 255, 0.15);
    
    --color-text-primary: #f4f4f5;
    --color-text-secondary: #86868b;
    --color-text-muted: #71717a;
    
    --color-accent: #3a7dff;
    --color-accent-dim: rgba(58, 125, 255, 0.15);

    /* Fonts */
    --font-sans: 'Geist Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Geist Mono', SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;

    /* Spacing Base */
    --space-xxs: 0.25rem; /* 4px */
    --space-xs: 0.5rem;   /* 8px */
    --space-sm: 1rem;     /* 16px */
    --space-md: 2rem;     /* 32px */
    --space-lg: 4rem;     /* 64px */
    --space-xl: 8rem;     /* 128px */
    
    /* Animation Easing */
    --ease-premium: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-slow: 0.8s;
    --duration-medium: 0.4s;
    --duration-fast: 0.2s;
}

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

/* Accessible outline styling */
*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

html {
    scroll-behavior: initial; /* Lenis handles smooth scrolling */
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    overflow-x: hidden;
    min-height: 100vh;
}

/* --------------------------------------------------------------------------
   1. Typography & Global Elements
   -------------------------------------------------------------------------- */
.mono {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-premium);
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Background Animation Canvas with entrance fade */
#constellation-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1.5s var(--ease-premium);
}
#constellation-canvas.rendered {
    opacity: 0.65;
}

/* Shared UI Components */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--color-accent);
    border: 1px solid var(--color-accent-dim);
    background-color: rgba(58, 125, 255, 0.05);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    margin-bottom: var(--space-md);
}

/* --------------------------------------------------------------------------
   2. Layout Utilities
   -------------------------------------------------------------------------- */
main {
    position: relative;
    z-index: 1;
    max-width: 1600px;
    margin: 0 auto;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
}

/* Grid Divider Helpers */
.grid-border-left { border-left: 1px solid var(--color-border); }
.grid-border-right { border-right: 1px solid var(--color-border); }
.grid-border-top { border-top: 1px solid var(--color-border); }
.grid-border-bottom { border-bottom: 1px solid var(--color-border); }

/* --------------------------------------------------------------------------
   3. Header & Global Navigation
   -------------------------------------------------------------------------- */
#global-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--duration-medium) var(--ease-premium), 
                backdrop-filter var(--duration-medium) var(--ease-premium);
}

#global-nav.scrolled {
    background-color: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    height: 72px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-md);
}

.nav-logo-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-logo {
    height: 32px;
    width: auto;
}

.nav-brand-text {
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

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

.nav-link {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--color-text-primary);
    transition: width var(--duration-medium) var(--ease-premium), 
                left var(--duration-medium) var(--ease-premium);
}

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

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

.nav-cta-btn {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-bg);
    background-color: var(--color-text-primary);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    transition: opacity var(--duration-fast) var(--ease-premium);
}

.nav-cta-btn:hover {
    opacity: 0.9;
}

/* Mobile Menu Button */
#mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 20px;
    height: 14px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 110;
}

.hamburger-line {
    width: 100%;
    height: 1px;
    background-color: var(--color-text-primary);
    transition: transform var(--duration-medium) var(--ease-premium), 
                opacity var(--duration-medium) var(--ease-premium);
}

#mobile-menu-toggle[aria-expanded="true"] .hamburger-line:first-child {
    transform: translateY(6px) rotate(45deg);
}

#mobile-menu-toggle[aria-expanded="true"] .hamburger-line:last-child {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
#mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-bg);
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-medium) var(--ease-premium), 
                visibility var(--duration-medium) var(--ease-premium);
}

#mobile-nav.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.mobile-nav-link {
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--color-text-secondary);
}

.mobile-nav-link:hover {
    color: var(--color-text-primary);
}

.mobile-nav-cta {
    font-size: 1.1rem;
    color: var(--color-bg);
    background-color: var(--color-text-primary);
    padding: 0.75rem 2rem;
    border-radius: 8px;
    margin-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   4. Hero Section
   -------------------------------------------------------------------------- */
.hero-viewport {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 var(--space-md);
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.hero-content {
    max-width: 900px;
    margin-top: 40px;
}

.hero-headline {
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.hero-headline span {
    display: block;
    opacity: 0;
    transform: translateY(30px);
}

.hero-subtext {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.hero-subtext span {
    opacity: 0;
    display: inline-block;
}

.hero-cta {
    font-size: 1.05rem;
    color: var(--color-text-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    position: relative;
    padding-bottom: 4px;
}

.hero-cta .arrow {
    transition: transform var(--duration-medium) var(--ease-premium);
}

.hero-cta::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: rgba(255,255,255,0.3);
    transition: background-color var(--duration-medium) var(--ease-premium);
}

.hero-cta:hover::after {
    background-color: var(--color-text-primary);
}

.hero-cta:hover .arrow {
    transform: translateX(6px);
}

/* --------------------------------------------------------------------------
   5. Philosophy Section
   -------------------------------------------------------------------------- */
.philosophy-section {
    padding: var(--space-xl) var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.philosophy-container {
    max-width: 900px;
}

.philosophy-quote {
    font-size: clamp(1.75rem, 4.5vw, 3.25rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    font-weight: 400;
}

/* --------------------------------------------------------------------------
   6. Capabilities Section (What We Build)
   -------------------------------------------------------------------------- */
.capabilities-section {
    border-bottom: 1px solid var(--color-border);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.capability-card {
    border-right: 1px solid var(--color-border);
    padding: var(--space-lg) var(--space-md);
    position: relative;
    overflow: hidden;
    background-color: transparent;
    transition: background-color var(--duration-medium) var(--ease-premium);
}

.capability-card:last-child {
    border-right: none;
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-border);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-medium) var(--ease-premium);
}

.capability-card:hover {
    background-color: rgba(255, 255, 255, 0.01);
}

.capability-card:hover::before {
    transform: scaleX(1);
    background-color: var(--color-accent);
}

.card-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-num {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   7. Featured Products Section
   -------------------------------------------------------------------------- */
.products-section {
    padding: var(--space-xl) var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

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

.section-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.02em;
}

.products-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-border);
}

.product-row {
    display: grid;
    grid-template-columns: 1fr 2fr auto;
    align-items: center;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    position: relative;
    transition: padding var(--duration-medium) var(--ease-premium), 
                background-color var(--duration-medium) var(--ease-premium);
}

/* High-End Hover Card Border Illumination */
.product-row::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-medium) var(--ease-premium);
}

.product-row:hover {
    padding-left: var(--space-xs);
    background-color: rgba(255, 255, 255, 0.01);
}

.product-row:hover::after {
    transform: scaleX(1);
}

.product-info-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-xxs);
}

.product-status {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.product-name {
    font-size: 1.75rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.product-tagline {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.product-link-arrow {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    transition: transform var(--duration-medium) var(--ease-premium), 
                color var(--duration-medium) var(--ease-premium);
}

.product-row:hover .product-link-arrow {
    transform: translateX(4px);
    color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   8. Principles Section
   -------------------------------------------------------------------------- */
.principles-section {
    padding: var(--space-xl) var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.principles-container {
    max-width: 900px;
}

.principles-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.principle-item {
    overflow: hidden;
}

.principle-title {
    font-size: clamp(2rem, 5.5vw, 4.5rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    color: var(--color-text-muted);
    transition: color var(--duration-medium) var(--ease-premium);
}

.principle-title.active {
    color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   9. Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
    padding: var(--space-xl) var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

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

.contact-heading {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.contact-sub {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    max-width: 420px;
}

.direct-channels {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.channel-item {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.channel-label {
    color: var(--color-text-muted);
    margin-right: var(--space-xs);
}

.channel-link:hover {
    color: var(--color-text-primary);
    text-decoration: underline;
}

/* Form Styling - Terminal/Console Theme */
.console-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-row {
    width: 100%;
}

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

.form-group label {
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: border-color var(--duration-fast) var(--ease-premium), 
                box-shadow var(--duration-fast) var(--ease-premium);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-dim);
}

.form-submit-btn {
    align-self: flex-start;
    font-family: var(--font-sans);
    background-color: var(--color-text-primary);
    color: var(--color-bg);
    border: none;
    border-radius: 6px;
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    transition: opacity var(--duration-fast) var(--ease-premium);
}

.form-submit-btn:hover {
    opacity: 0.9;
}

.btn-arrow {
    transition: transform var(--duration-medium) var(--ease-premium);
}

.form-submit-btn:hover .btn-arrow {
    transform: translateX(4px);
}

.form-status {
    min-height: 20px;
}

/* --------------------------------------------------------------------------
   10. Footer Section
   -------------------------------------------------------------------------- */
#global-footer {
    padding: var(--space-lg) var(--space-md);
    border-top: none;
}

.footer-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-logo-text {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    display: block;
    margin-bottom: var(--space-xxs);
}

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

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

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-group-title {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xxs);
}

.footer-links-group a {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

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

.footer-link-static {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   11. Responsiveness (Media Queries)
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .capability-card {
        border-bottom: 1px solid var(--color-border);
    }
    
    .capability-card:nth-child(2) {
        border-right: none;
    }
    
    .capability-card:nth-child(3) {
        border-bottom: none;
    }
    
    .capability-card:nth-child(4) {
        border-right: none;
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    /* Main wrapper borders */
    main {
        border-left: none;
        border-right: none;
    }
    
    /* Nav mobile adaptation */
    .nav-links,
    .nav-cta-wrapper {
        display: none;
    }
    
    #mobile-menu-toggle {
        display: flex;
    }
    
    /* Capabilities Stack */
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .capability-card {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .capability-card:last-child {
        border-bottom: none;
    }
    
    /* Product row stack */
    .product-row {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
        padding: var(--space-md) 0;
    }
    
    .product-info-right {
        display: none; /* Hide arrow on mobile to prevent clutter */
    }
    
    /* Contact grid stack */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    /* Footer stack */
    .footer-container {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .footer-right {
        width: 100%;
        justify-content: space-between;
    }
}

/* Reduced Motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-delay: 0s !important;
        animation-duration: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0s !important;
        scroll-behavior: auto !important;
    }
}