/* -------------------------------------------------------------
 * ANTIGRAVITY CORE DESIGN SYSTEM & STYLING
 * ------------------------------------------------------------- */

/* Custom properties & Design Tokens */
:root {
    --bg-base: #030307;
    --bg-surface: rgba(13, 13, 25, 0.6);
    --bg-surface-hover: rgba(22, 22, 40, 0.75);
    --border-color: rgba(138, 43, 226, 0.18);
    --border-color-hover: rgba(10, 245, 255, 0.35);
    
    --text-primary: #f0f2f5;
    --text-secondary: #9aa0c2;
    --text-faded: #62688f;
    
    /* Neon gradients & Highlights */
    --neon-cyan: #0af5ff;
    --neon-purple: #9d4edd;
    --neon-indigo: #6366f1;
    
    --gradient-cosmic: linear-gradient(135deg, var(--neon-purple), var(--neon-indigo), var(--neon-cyan));
    --gradient-text: linear-gradient(135deg, #ffffff 30%, var(--neon-cyan) 100%);
    --gradient-glow: linear-gradient(135deg, rgba(157, 78, 221, 0.2), rgba(10, 245, 255, 0.2));
    
    /* Fonts */
    --font-headers: 'Pixelify Sans', 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-pixel-retro: 'Press Start 2P', monospace;
    --font-pixel-mono: 'VT323', monospace;
    
    /* System shadow & blur effects */
    --glass-blur: blur(16px);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glow-shadow-cyan: 0 0 20px rgba(10, 245, 255, 0.3);
    --glow-shadow-purple: 0 0 20px rgba(157, 78, 221, 0.3);
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
    width: 100%;
    min-height: 100vh;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
    transition: var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon-purple);
}

/* Ambient Floating Particles Canvas background */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 0;
    pointer-events: all; /* Enable mouse hover particle deflection */
}

/* Cosmic Ambient Glowing Orbs */
.cosmic-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.15;
    z-index: 1;
    pointer-events: none;
    animation: pulseOrb 20s infinite alternate ease-in-out;
}

.orb-1 {
    width: 45vw;
    height: 45vw;
    top: -10%;
    left: -10%;
    background: radial-gradient(circle, var(--neon-purple) 0%, transparent 80%);
}

.orb-2 {
    width: 40vw;
    height: 40vw;
    bottom: -10%;
    right: -10%;
    background: radial-gradient(circle, var(--neon-cyan) 0%, transparent 80%);
    animation-delay: -5s;
}

.orb-3 {
    width: 30vw;
    height: 30vw;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--neon-indigo) 0%, transparent 80%);
    animation-delay: -10s;
}

@keyframes pulseOrb {
    0% { transform: scale(1) translate(0, 0); opacity: 0.12; }
    50% { transform: scale(1.15) translate(3%, 5%); opacity: 0.20; }
    100% { transform: scale(0.9) translate(-3%, -2%); opacity: 0.10; }
}

/* Main Layout Wrapper */
.app-container {
    position: relative;
    z-index: 2; /* Sits above canvas and background orbs */
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* -------------------------------------------------------------
 * HEADER & NAVIGATION STYLES
 * ------------------------------------------------------------- */
.app-header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.25rem;
    padding: 2rem 0;
    margin-top: 1rem;
    border-bottom: 1px solid rgba(138, 43, 226, 0.08); /* super subtle separation */
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 0 8px rgba(10, 245, 255, 0.4));
    transition: var(--transition-smooth);
}

.logo-area:hover .logo-icon {
    transform: rotate(360deg) scale(1.1);
}

.logo-text {
    font-family: var(--font-pixel-retro);
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    background: var(--gradient-cosmic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 10px rgba(10, 245, 255, 0.2);
}

.nav-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: transparent;
    padding: 0;
    border-radius: 0;
    border: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-radius: 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-headers);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
}

.nav-icon {
    width: 16px;
    height: 16px;
    transition: var(--transition-fast);
}

.nav-tab::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cosmic);
    transition: var(--transition-smooth);
}

.nav-tab:hover {
    color: var(--neon-cyan);
    background: transparent;
    text-shadow: 0 0 10px rgba(10, 245, 255, 0.5);
}

.nav-tab:hover .nav-icon {
    color: var(--neon-cyan);
    filter: drop-shadow(0 0 5px var(--neon-cyan));
}

.nav-tab.active {
    color: #ffffff;
    background: transparent;
    text-shadow: 0 0 12px rgba(157, 78, 221, 0.6);
    box-shadow: none;
}

.nav-tab.active::after {
    width: 100%;
}

.nav-tab.active .nav-icon {
    color: var(--neon-cyan);
    filter: drop-shadow(0 0 6px var(--neon-cyan));
}

/* -------------------------------------------------------------
 * MAIN CONTENT CONTAINER & TAB TOGGLING
 * ------------------------------------------------------------- */
.app-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem 0;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* -------------------------------------------------------------
 * SECTION: HOME (HERO & FEATURES)
 * ------------------------------------------------------------- */
.hero-section {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 5rem auto;
}

/* Float Animation */
.float {
    animation: floatAnim 6s ease-in-out infinite;
}

@keyframes floatAnim {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
    100% { transform: translateY(0px); }
}

.badge-container {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(138, 43, 226, 0.12);
    border: 1px solid var(--border-color);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 2rem;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: var(--neon-cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--neon-cyan);
    animation: pulseDot 2s infinite;
}

.pulse-dot.green {
    background: #00ff88;
    box-shadow: 0 0 10px #00ff88;
}

@keyframes pulseDot {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.4; }
    100% { transform: scale(1); opacity: 1; }
}

.badge-text {
    font-size: 1.15rem;
    font-family: var(--font-pixel-mono);
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--neon-cyan);
}

.hero-title {
    font-family: var(--font-headers);
    font-weight: 700;
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.glow-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(10, 245, 255, 0.15);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto 2.5rem auto;
    font-weight: 300;
    min-height: 150px;
}

/* Button UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-family: var(--font-headers);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    outline: none;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-cosmic);
    color: #ffffff;
    border: none;
    box-shadow: var(--glow-shadow-purple);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-shadow-cyan), 0 8px 25px rgba(10, 245, 255, 0.2);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Glassmorphism Cards and Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.glass-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.features-grid .glass-card {
    min-height: 310px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: -1;
}

.glass-card.interactive-hover:hover {
    transform: translateY(-5px);
    border-color: var(--border-color-hover);
    box-shadow: 0 12px 40px 0 rgba(10, 245, 255, 0.15);
}

.glass-card.interactive-hover:hover::before {
    opacity: 1;
}

.card-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    color: var(--neon-cyan);
    transition: var(--transition-smooth);
}

.glass-card:hover .card-icon-wrapper {
    color: #ffffff;
    border-color: var(--border-color-hover);
}

.purple-glow {
    color: var(--neon-purple);
    box-shadow: 0 0 10px rgba(157, 78, 221, 0.2);
}
.cyan-glow {
    color: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(10, 245, 255, 0.2);
}
.indigo-glow {
    color: var(--neon-indigo);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

.glass-card h3 {
    font-family: var(--font-headers);
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.glass-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 300;
}

/* Skill Tags (Home & Cards) */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

.skill-tag {
    font-size: 1.15rem;
    font-family: var(--font-pixel-mono);
    font-weight: 500;
    padding: 0.15rem 0.65rem;
    border-radius: 4px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: #a5b4fc;
    transition: var(--transition-fast);
}

.glass-card:hover .skill-tag {
    border-color: var(--neon-cyan);
    background: rgba(10, 245, 255, 0.08);
    color: var(--neon-cyan);
}

/* -------------------------------------------------------------
 * SECTION: PROJECTS (PORTFOLIO GALLERY)
 * ------------------------------------------------------------- */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

.section-title {
    font-family: var(--font-headers);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 300;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.5rem;
    min-height: 380px;
}

.project-header {
    margin-bottom: 1rem;
}

.project-category {
    font-family: var(--font-headers);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--neon-purple);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-title {
    font-family: var(--font-headers);
    font-size: 1.4rem;
    font-weight: 600;
    margin-top: 0.25rem;
    color: #ffffff;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.project-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-family: var(--font-headers);
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.link-icon {
    width: 16px;
    height: 16px;
}

.project-link:hover {
    color: var(--neon-cyan);
}

.project-link.active-link {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px rgba(10, 245, 255, 0.4);
}

.project-link.active-link:hover {
    color: #ffffff;
    text-shadow: none;
}

/* -------------------------------------------------------------
 * SECTION: CONTACT
 * ------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info-panel h2 {
    font-family: var(--font-headers);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.panel-intro {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.channel-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: var(--transition-smooth);
}

.channel-card:hover {
    border-color: var(--border-color);
    background: rgba(255, 255, 255, 0.04);
}

.channel-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
}

.channel-icon svg {
    width: 20px;
    height: 20px;
}

.text-cyan { color: var(--neon-cyan); }
.text-purple { color: var(--neon-purple); }
.text-indigo { color: var(--neon-indigo); }

.channel-details h4 {
    font-size: 0.85rem;
    color: var(--text-faded);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.channel-details span, .channel-details a {
    font-size: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    word-break: break-all;
}

.channel-details a:hover {
    color: var(--neon-cyan);
    text-shadow: 0 0 8px rgba(10, 245, 255, 0.3);
}

/* Contact Form Styling */
.contact-form-panel h3 {
    font-family: var(--font-headers);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.input-group label {
    font-size: 0.8rem;
    font-family: var(--font-headers);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-group input, 
.input-group textarea {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem 1rem;
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.input-group input::placeholder, 
.input-group textarea::placeholder {
    color: var(--text-faded);
}

.input-group input:focus, 
.input-group textarea:focus {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 12px rgba(10, 245, 255, 0.2);
}

.btn-block {
    width: 100%;
}

/* -------------------------------------------------------------
 * FOOTER STYLES
 * ------------------------------------------------------------- */
.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--text-faded);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-family: var(--font-pixel-mono);
    font-size: 1.15rem;
    letter-spacing: 0.05em;
}

/* -------------------------------------------------------------
 * RESPONSIVENESS (MOBILE ADAPTATION)
 * ------------------------------------------------------------- */
@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    html, body {
        font-size: 15px;
    }
    
    .app-container {
        padding: 0 1rem;
    }
    
    .app-header {
        flex-direction: column;
        gap: 1.25rem;
        padding: 1.25rem 0;
        margin-top: 0.5rem;
        border-bottom: 1px solid rgba(138, 43, 226, 0.12);
    }
    
    .nav-bar {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.25rem;
        width: 100%;
    }
    
    .nav-tab {
        font-size: 0.92rem;
        padding: 0.4rem 0.2rem;
        gap: 0.35rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 2rem;
        min-height: 185px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 340px;
        margin: 0 auto;
        gap: 0.75rem;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .app-main {
        padding: 2rem 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .glass-card {
        padding: 1.75rem;
    }
    
    .features-grid .glass-card {
        min-height: 290px;
    }
    
    .project-card {
        padding: 1.75rem;
        min-height: 320px;
    }
    
    .app-footer {
        flex-direction: column;
        gap: 1.25rem;
        text-align: center;
        padding: 1.5rem 0;
    }
    
    .status-indicator {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        min-height: 250px;
    }
    
    .nav-bar {
        gap: 0.8rem;
    }
    
    .nav-tab span {
        font-size: 0.85rem;
    }
    
    .nav-icon {
        width: 14px;
        height: 14px;
    }
    
    .lang-switch-capsule {
        margin-top: 0.5rem;
        margin-left: 0;
        width: 82px !important;
        flex-grow: 0;
        flex-shrink: 0;
    }
    
    .education-section .section-title,
    .projects-section .section-title,
    .contact-info-panel h2 {
        font-size: 1.6rem !important;
    }
    
    .badge-text {
        font-size: 0.65rem;
    }
    
    .badge-container {
        padding: 0.4rem 0.8rem;
    }
}

/* -------------------------------------------------------------
 * PREMIUM CLIENT-SIDE BILINGUAL SYSTEM
 * ------------------------------------------------------------- */
body.lang-pl .lang-en {
    display: none !important;
}

body.lang-en .lang-pl {
    display: none !important;
}

/* Premium sliding capsule toggle */
.lang-switch-capsule {
    display: flex;
    align-items: center;
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 2px;
    width: 82px;
    height: 32px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    margin-left: 1.5rem;
    overflow: hidden;
}

.lang-switch-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-headers);
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    z-index: 2;
    transition: var(--transition-fast);
    outline: none;
    text-align: center;
    line-height: 26px;
    user-select: none;
}

.lang-switch-btn:hover {
    color: var(--neon-cyan);
}

.lang-switch-btn.active {
    color: #ffffff !important;
    text-shadow: 0 0 8px rgba(10, 245, 255, 0.5);
}

.lang-switch-glider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 38px;
    height: 26px;
    background: var(--gradient-cosmic);
    border-radius: 20px;
    z-index: 1;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 10px rgba(10, 245, 255, 0.3);
}

/* Glider animation switch based on body class */
body.lang-en .lang-switch-glider {
    transform: translateX(38px);
}


/* -------------------------------------------------------------
 * PREMIUM ROTATING LOADING SPINNER FOR CONTACT FORM
 * ------------------------------------------------------------- */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.btn-icon.spinner {
    animation: spin 1s linear infinite;
    flex-shrink: 0;
}

/* -------------------------------------------------------------
 * PREMIUM PRINT STYLES FOR RECRUITERS
 * ------------------------------------------------------------- */
@media print {
    body, html {
        background: #ffffff !important;
        color: #000000 !important;
        font-size: 11pt !important;
    }
    
    #particle-canvas, 
    .cosmic-orb, 
    .app-header, 
    .lang-switch-capsule, 
    .hero-actions, 
    .project-links, 
    .app-footer, 
    form,
    .channel-icon,
    svg {
        display: none !important;
    }
    
    .app-container {
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    .app-main {
        padding: 0 !important;
    }
    
    .glass-card {
        background: #ffffff !important;
        border: 1px solid #dddddd !important;
        color: #000000 !important;
        box-shadow: none !important;
        page-break-inside: avoid;
        margin-bottom: 1.5rem !important;
        padding: 1.5rem !important;
        border-radius: 8px !important;
    }
    
    .glass-card::before {
        display: none !important;
    }
    
    .glass-card p, 
    .glass-card h3,
    .glass-card h4,
    .glass-card li,
    .glass-card strong {
        color: #000000 !important;
    }
    
    .skill-tag {
        border: 1px solid #888888 !important;
        color: #000000 !important;
        background: transparent !important;
        font-size: 0.8rem !important;
        padding: 0.1rem 0.4rem !important;
    }
    
    .features-grid,
    .projects-grid {
        display: block !important;
    }
}