:root {
    /* Paleta kolorów - Dark Mode z neonowymi akcentami */
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.65);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #38bdf8; /* Jasnoniebieski / Cyan */
    --accent-glow: rgba(56, 189, 248, 0.4);
    --accent-secondary: #818cf8; /* Fioletowo-niebieski */
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
    position: relative;
    overflow-x: hidden;
}

/* Efekty w tle (Glow) */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background-color: var(--bg-color);
}

/* Animowana cyber-siatka w tle */
.background-effects::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 25s linear infinite;
    transform: rotate(-10deg);
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.6;
    animation: float 15s infinite ease-in-out alternate;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-glow);
    top: 10%;
    left: 10%;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: rgba(129, 140, 248, 0.25);
    bottom: 5%;
    right: 5%;
    animation-delay: -7s;
    animation-direction: alternate-reverse;
}

@keyframes gridMove {
    0% { transform: rotate(-10deg) translateY(0); }
    100% { transform: rotate(-10deg) translateY(50px); }
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -40px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.9); }
    100% { transform: translate(50px, 50px) scale(1.05); }
}

/* Karta główna (Glassmorphism) */
.card-container {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
    max-width: 650px;
    width: 100%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    
    /* Animacja wejścia */
    transform: translateY(30px);
    opacity: 0;
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Nagłówek */
.header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.profile-image-placeholder {
    width: 110px;
    height: 110px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3rem;
    color: #fff;
    box-shadow: 0 0 25px var(--accent-glow);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.profile-image-placeholder:hover {
    transform: scale(1.08) rotate(10deg);
    box-shadow: 0 0 40px var(--accent-glow);
}

.profile-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.name {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    /* Efekt gradientu na tekście */
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.slogan {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.role-badge {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 9999px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    box-shadow: 0 0 10px transparent;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.role-badge:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Sekcje treści */
section {
    margin-bottom: 2.5rem;
}

section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-main);
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.6rem;
}

.section-title i {
    color: var(--accent);
}

.about p {
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Umiejętności */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    padding-top: 0.5rem;
}

/* Galeria projektów */
.projects {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.project-card {
    display: flex;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.2rem;
    transition: all 0.3s ease;
}

.project-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(56, 189, 248, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.5);
}

.project-image {
    flex: 0 0 140px;
    height: 140px;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.image-placeholder i {
    font-size: 3rem;
    color: var(--text-muted);
    opacity: 0.3;
}

.project-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.project-info p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.project-tags span {
    font-size: 0.75rem;
    font-family: 'Fira Code', monospace;
    padding: 0.3rem 0.6rem;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent);
    border-radius: 6px;
}

/* Przyciski społecznościowe i kontakt */
.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.6);
    border-color: var(--accent);
}

/* Kolory ikon przy najechniu */
.social-btn.github:hover i { color: #ffffff; }
.social-btn.linkedin:hover i { color: #0a66c2; }
.social-btn.email:hover i { color: #ea4335; }

.social-btn i {
    font-size: 1.3rem;
    transition: color 0.3s ease;
}

/* Responsywność dla telefonów */
@media (max-width: 500px) {
    .card-container {
        padding: 2rem 1.5rem;
    }
    
    .name {
        font-size: 2rem;
    }
    
    .social-grid {
        grid-template-columns: 1fr;
    }

    .project-card {
        flex-direction: column;
        gap: 1rem;
    }
    
    .project-image {
        flex: 0 0 160px;
        width: 100%;
    }
}

/* Powiadomienie typu Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(16, 185, 129, 0.95); /* Zielony kolor z lekką przezroczystością */
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 9999;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}