/* =========================================
   KARTO APS - PRECISION BLUEPRINT THEME
   ========================================= */

:root {
    /* Color Palette */
    --color-bg: #F9FAFB;
    /* Cloud White */
    --color-heading: #4682B4;
    /* Steel Blue */
    --color-interactive: #00C896;
    /* Fresh Mint */
    --color-text-main: #374151;
    /* Dark Gray for body readability */
    --color-text-muted: #6B7280;
    /* Lighter Gray for secondary info */
    --color-border: #E5E7EB;
    /* Light borders */

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Layout & Spacing */
    --grid-size: 40px;
    --container-max-width: 1040px;
    --section-spacing: 120px;
    --border-radius: 4px;
    /* Minimal, architectural radius */

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================
   RESET & FOUNDATION
   ========================================= */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    overflow-x: hidden;
}

/* Precision Blueprint Grid Background */
.blueprint-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    background-image:
        linear-gradient(to right, #4682b40a 1px, transparent 1px),
        linear-gradient(to bottom, rgba(70, 130, 180, 0.04) 1px, transparent 1px);
    background-size: var(--grid-size) var(--grid-size);
}

/* Add a bolder grid line every 4 units for that architectural feel */
.blueprint-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(to right, rgba(70, 130, 180, 0.08) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(70, 130, 180, 0.08) 1px, transparent 1px);
    background-size: calc(var(--grid-size) * 4) calc(var(--grid-size) * 4);
    z-index: -1;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 5%;
}

/* Typography Hierarchy */
h1,
h2,
h3,
h4 {
    color: var(--color-heading);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 2rem;
    position: relative;
}

/* Badges / Monospace Labels */
.badge,
.section-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--color-heading);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border: 1px solid rgba(70, 130, 180, 0.2);
    background: rgba(249, 250, 251, 0.8);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero-section {
    padding: 15vh 0 10vh;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.hero-logo {
    width: 4rem;
    height: auto;
    margin: -.5rem;
}

.hero-headline {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    margin-top: 1rem;
}

.hero-headline span {
    color: var(--color-text-main);
    font-weight: 300;
}

.hero-body {
    font-size: 1.25rem;
    max-width: 800px;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--color-heading);
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
    border: 1px solid var(--color-heading);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background-color: var(--color-interactive);
    border-color: var(--color-interactive);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 200, 150, 0.2);
}

/* =========================================
   DUAL-CORE ECOSYSTEM
   ========================================= */
.dual-core-section {
    padding: var(--section-spacing) 0;
    border-bottom: 1px solid var(--color-border);
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.module-card {
    background: #FFFFFF;
    border: 1px solid var(--color-border);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.module-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    border-color: rgba(70, 130, 180, 0.3);
    transform: translateY(-4px);
}

/* Top accent line */
.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-heading);
    transition: var(--transition-smooth);
}

.module-card:hover::before {
    background: var(--color-interactive);
}

.module-header {
    margin-bottom: 1.5rem;
}

.module-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.module-type {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-interactive);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.module-content {
    flex-grow: 1;
}

.module-content h4 {
    font-size: 1.1rem;
    color: var(--color-text-main);
    margin-bottom: 1rem;
    font-weight: 500;
}

.module-content p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.tech-stack span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 0.25rem 0.5rem;
    border-radius: 2px;
    color: var(--color-text-muted);
}

/* =========================================
   ARCHITECT PROFILE
   ========================================= */
.architect-section {
    padding: var(--section-spacing) 0;
    border-bottom: 1px solid var(--color-border);
}

.architect-content {
    max-width: 800px;
}

.architect-text p {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.architect-text p:first-of-type {
    font-weight: 500;
    color: var(--color-text-main);
    font-size: 1.5rem;
}

.architect-quote {
    font-size: 1.35rem;
    font-style: italic;
    color: var(--color-heading);
    border-left: 3px solid var(--color-interactive);
    padding-left: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

/* =========================================
   FOOTER
   ========================================= */
.footer-section {
    padding: 3rem 3rem 3rem;
    background-color: #FFFFFF;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    margin-bottom: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo-img {
    width: 6rem;
    height: auto;
    margin-bottom: 1rem;
    display: block;
}

.company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-heading);
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.company-reg {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.company-address {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.footer-heading {
    font-size: 1rem;
    color: var(--color-text-main);
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.contact-list {
    list-style: none;
}

.contact-list li {
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.interactive-link {
    color: var(--color-text-muted);
    text-decoration: none;
    position: relative;
    transition: var(--transition-fast);
}

.interactive-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--color-interactive);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

.interactive-link:hover {
    color: var(--color-interactive);
}

.interactive-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 2rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* =========================================
   ANIMATIONS & UTILITIES
   ========================================= */
/* Initial states */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease-out;
}

.slide-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* Visible states triggered by JS */
.fade-in.visible,
.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    :root {
        --section-spacing: 80px;
    }

    .hero-headline {
        font-size: 2.5rem;
    }

    .hero-section {
        padding: 10vh 0 8vh;
    }

    .module-card {
        padding: 1.5rem;
    }

    .footer-section {
        padding: 4rem 1.5rem 2rem;
    }
}