/* ========================================
   CSS Variables & Design System
   ======================================== */
:root {
    /* Colors - Cloud/Infrastructure aesthetic */
    --color-primary: #0a192f;
    --color-secondary: #1e3a5f;
    --color-accent: #64ffda;
    --color-accent-dark: #4fd1b8;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-border: #e2e8f0;

    /* Typography */
    --font-primary: 'Futura', 'Raleway', sans-serif;
    --font-secondary: 'Raleway', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-secondary);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
}

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

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

main {
    min-height: calc(100vh - var(--header-height) - 200px);
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

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

.logo {
    height: 40px;
    width: auto;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    font-family: var(--font-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all 0.3s ease;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-bg);
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    align-items: center;
    gap: var(--spacing-xl);
}

.hero-copy {
    max-width: 620px;
}

.hero h1 {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-sm);
    color: var(--color-bg);
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    max-width: 600px;
    margin: 0 0 var(--spacing-md);
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--color-accent);
    color: var(--color-primary);
    font-weight: 700;
    border-radius: 4px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(100, 255, 218, 0.3);
    color: var(--color-primary);
}

/* ========================================
   Sections
   ======================================== */
.section {
    padding: var(--spacing-lg) 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-family: var(--font-primary);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

/* ========================================
   Services Grid
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-family: var(--font-primary);
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

/* ========================================
   Tech Stack
   ======================================== */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.tech-item {
    flex: 0 1 calc((100% - (5 * var(--spacing-md))) / 6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
}

.tech-item img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.tech-item span {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* ========================================
   Experience Section
   ======================================== */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.experience-card {
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-accent);
    background-color: var(--color-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.experience-card h3 {
    font-family: var(--font-primary);
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

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

.footer-brand p {
    opacity: 0.8;
}

.footer-logo {
    height: 40px;
    margin-bottom: var(--spacing-xs);
}

.footer-links {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-bg);
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.share-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.85rem;
}

.share-links span {
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.share-links a,
.native-share {
    color: var(--color-bg);
    opacity: 0.8;
}

.share-links a:hover,
.native-share:hover {
    color: var(--color-accent);
    opacity: 1;
}

.native-share {
    border: 0;
    padding: 0;
    background: transparent;
    font: inherit;
    cursor: pointer;
}

.copyright {
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.6;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-sm);
}

/* ========================================
   Mobile Responsive
   ======================================== */
@media (max-width: 900px) {
    .hero-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }

    .hero-copy {
        max-width: none;
    }

    .hero p {
        margin-right: auto;
        margin-left: auto;
    }

    .logo-orbit-container {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .services-grid,
    .experience-grid {
        grid-template-columns: 1fr;
    }

    .tech-stack {
        gap: var(--spacing-sm);
    }

    .tech-item {
        flex-basis: calc((100% - (2 * var(--spacing-sm))) / 3);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .services-grid,
    .experience-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tech-stack {
        gap: var(--spacing-sm);
    }

    .tech-item {
        flex-basis: calc((100% - (3 * var(--spacing-sm))) / 4);
    }
}

/* Orbital Tech Stack Animation - Ferris Wheel Effect */
.logo-orbit-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 400px;
    height: 400px;
    margin: 0;
}

.hero-logo {
    position: relative;
    z-index: 2;
    width: 50%;
    height: auto;
}

.orbit-ring {
    --orbit-radius: -150px;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 360px;
    height: 360px;
    margin-top: -180px;
    margin-left: -180px;
    animation: orbit-spin 25s linear infinite;
}

.orbit-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 46px;
    height: 46px;
    margin-top: -23px;
    margin-left: -23px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #e2e8f0;
    transform: rotate(calc(var(--i) * 1turn / var(--orbit-count))) translateY(var(--orbit-radius));
}

.orbit-icon img {
    width: 34px !important;
    height: 34px !important;
    display: block;
}

@keyframes orbit-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .logo-orbit-container {
        width: 300px;
        height: 300px;
        margin: 0 auto;
    }

    .hero-logo {
        width: 46%;
    }

    .orbit-ring {
        --orbit-radius: -116px;
        width: 280px;
        height: 280px;
        margin-top: -140px;
        margin-left: -140px;
    }

    .orbit-icon {
        width: 36px;
        height: 36px;
        margin-top: -18px;
        margin-left: -18px;
        border-radius: 9px;
    }

    .orbit-icon img {
        width: 26px !important;
        height: 26px !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .orbit-ring {
        animation: none;
    }
}