/* Accessibility: visually hidden but available to screen readers and search engines */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

:root {
    --bg-color: #050505;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-color: #a78bfa;
    --nav-height: 80px;
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --gradient-primary: linear-gradient(135deg, #60a5fa, #a78bfa);
}

body {
    margin: 0;
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
}

.app-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Nav Bar */
.nav-bar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 2000;
    display: flex;
    align-items: center;
}

.nav-content {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 4rem;
}

.nav-logo {
    /* Reset button element defaults */
    appearance: none;
    border: none;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    padding: 0;
    /* Visual styles */
    font-family: inherit;
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 0.75rem;
}

.lang-switcher button {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 800;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.lang-switcher button:hover {
    color: var(--text-primary);
}

.lang-switcher button.active {
    color: var(--accent-color);
    background: rgba(167, 139, 250, 0.1);
}

/* Hamburger Icon */
.hamburger {
    /* Reset button element defaults */
    appearance: none;
    border: none;
    background: none;
    padding: 0;
    /* Visual styles */
    width: 30px;
    height: 20px;
    position: relative;
    cursor: pointer;
    z-index: 2100;
    flex-shrink: 0;
}

.hamburger span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--text-primary);
    border-radius: 9px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.hamburger span:nth-child(1) {
    top: 0px;
}

.hamburger span:nth-child(2) {
    top: 9px;
}

.hamburger span:nth-child(3) {
    top: 18px;
}

.hamburger.open span:nth-child(1) {
    top: 9px;
    transform: rotate(135deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
    left: -60px;
}

.hamburger.open span:nth-child(3) {
    top: 9px;
    transform: rotate(-135deg);
}

/* Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1500;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.menu-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

.menu-links {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center;
}

.menu-links li {
    margin-bottom: 2rem;
}

.menu-links li button {
    /* Reset button defaults */
    appearance: none;
    border: none;
    background: none;
    padding: 0;
    /* Visual styles matching old li text */
    font-family: inherit;
    font-size: 4rem;
    font-weight: 800;
    cursor: pointer;
    text-transform: uppercase;
    transition: color 0.3s ease, transform 0.3s ease;
    color: var(--text-secondary);
    display: block;
}

.menu-links li button:hover,
.menu-links li button:focus-visible {
    color: var(--text-primary);
    transform: scale(1.1);
    outline: none;
}

.menu-footer {
    position: absolute;
    bottom: 4rem;
    text-align: center;
}

.menu-footer a {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
}

/* Page Containers */
.page-container {
    padding-top: var(--nav-height);
    flex-grow: 1;
    width: 100%;
}

/* Fixed Background Title */
.fixed-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: -1;
    pointer-events: none;
}

.huge-text {
    font-size: 8vw;
    font-weight: 800;
    text-transform: uppercase;
    text-align: center;
    line-height: 1;
    color: rgba(255, 255, 255, 0.05);
    width: 90%;
}

.dynamic-text {
    color: var(--accent-color);
}

.scroll-content {
    position: relative;
    z-index: 2;
}

.content-block {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 10vh 10%;
}

.content-card p {
    font-size: 2.5rem;
    font-weight: 300;
    max-width: 600px;
    line-height: 1.4;
    background: rgba(0, 0, 0, 0.4);
    padding: 3rem;
    border-radius: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    margin: 0;
}

.content-block.left {
    justify-content: flex-start;
}

.content-block.right {
    justify-content: flex-end;
}

.content-block.center {
    justify-content: center;
}

/* Tech Page */
.page-header {
    text-align: center;
    padding: 100px 0 60px;
}

.page-header h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 100px;
    padding: 0 2rem;
}

.tech-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 1.5rem;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.tech-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
}

.tech-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.tech-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Portfolio Page */
.portfolio-page .featured-card {
    max-width: 1000px;
    margin: 0 auto 100px;
    background: rgba(255, 255, 255, 0.02);
    padding: 5rem;
    border-radius: 2.5rem;
    border: 1px solid var(--glass-border);
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent-color);
    color: #000;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.featured-card h2 {
    font-size: 5rem;
    font-weight: 800;
    margin: 0 0 1rem;
}

.featured-card p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.capabilities-note {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-color);
    font-size: 1rem;
}

/* Centered Footer Bar */
.site-footer {
    padding: 30px 4rem;
    background: rgba(5, 5, 5, 1);
    border-top: 1px solid var(--glass-border);
    margin-top: auto;
    width: 100%;
    box-sizing: border-box;
    z-index: 100;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    gap: 2rem;
}

.contact-group {
    grid-column: 2;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-cta {
    font-size: 0.9rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.9;
}

.contact-link {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.copyright {
    grid-column: 1;
    font-size: 0.7rem;
    opacity: 0.3;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

/* Empty spacer for grid balance */
.footer-spacer {
    grid-column: 3;
}

.spacer {
    height: 10vh;
}

.spacer.initial {
    height: 100vh;
}

@media (max-width: 768px) {
    .nav-content {
        padding: 0 2rem;
    }

    .nav-right {
        gap: 1rem;
    }

    .huge-text {
        font-size: 12vw;
    }

    .menu-links li button {
        font-size: 2.5rem;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }

    .featured-card h2 {
        font-size: 3rem;
    }

    .featured-card {
        padding: 2rem;
    }

    .contact-link {
        font-size: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }

    .contact-group {
        grid-column: 1;
        flex-direction: column;
        gap: 0.5rem;
    }

    .copyright {
        grid-column: 1;
        order: 3;
    }
}