/* --- Globalne Ustawienia --- */
:root {
    --color-primary-bg: #1a0a33; /* Głęboki granat, prawie fiolet */
    --color-hero-gradient-start: #00F5D4; /* Jasny cyjan */
    --color-hero-gradient-end: #FF00FF;   /* Fuksja */
    --color-accent-green: #00FF99;        /* Neonowy zielony */
    --color-accent-blue: #00BFFF;         /* Elektryczny błękit */
    --color-accent-orange: #FFA500;       /* Ciepły pomarańcz */

    --color-text-light: #ecf0f1;
    --color-text-dark: #2c3e50;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Space Mono', monospace; /* Monospace dla technicznego feelingu */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.7;
    background-color: var(--color-primary-bg);
    color: var(--color-text-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 25px;
    font-weight: 900; /* Bardzo gruby font dla nagłówków */
    color: var(--color-text-light);
}

h1 {
    font-size: 3.8rem;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    background: linear-gradient(90deg, var(--color-hero-gradient-start), var(--color-hero-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block; /* Aby gradient działał */
    padding-bottom: 10px;
    border-bottom: 3px solid var(--color-accent-green);
}

p {
    font-size: 1.1rem;
    color: rgba(236, 240, 241, 0.9);
    margin-bottom: 20px;
}

.section-description {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
    font-size: 1.2rem;
    color: rgba(236, 240, 241, 0.7);
}

section {
    padding: 120px 0;
    position: relative; /* Dla ewentualnych tleń */
}

/* --- Nagłówek i Nawigacja --- */
header {
    background: rgba(26, 10, 51, 0.95); /* Prawie czarny, lekko przezroczysty */
    backdrop-filter: blur(8px);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.8rem;
    background: linear-gradient(90deg, var(--color-hero-gradient-start), var(--color-hero-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 5px rgba(0,255,212,0.5);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 40px;
}

nav a {
    text-decoration: none;
    color: var(--color-text-light);
    font-weight: 700;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background: var(--color-hero-gradient-start);
    left: 0;
    bottom: 0;
    transition: width 0.3s ease;
}

nav a:hover {
    color: var(--color-hero-gradient-start);
}

nav a:hover::after {
    width: 100%;
    background: linear-gradient(90deg, var(--color-hero-gradient-start), var(--color-hero-gradient-end));
}

/* --- Sekcja Hero --- */
#hero {
    text-align: center;
    min-height: 100vh; /* Pełna wysokość viewportu */
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-hero-gradient-start) 0%, var(--color-hero-gradient-end) 100%);
    position: relative;
    overflow: hidden; /* Ukryj nadmiarowe animacje */
}

/* Subtelne animowane tło dla sekcji hero */
#hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotateBackground 20s linear infinite;
    opacity: 0.3;
}

@keyframes rotateBackground {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

#hero .container {
    position: relative;
    z-index: 2;
}

#hero p {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 20px auto 40px;
    color: rgba(255, 255, 255, 0.9);
}

.btn {
    display: inline-flex;
    align-items: center;
    background: var(--color-accent-green);
    color: var(--color-dark-text);
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    box-shadow: 0 8px 30px rgba(0, 255, 153, 0.4);
}

.btn i {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.contact {
    background: var(--color-hero-gradient-end);
}

.btn:hover {
    transform: translateY(-7px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 255, 153, 0.6);
    background: var(--color-accent-blue);
    color: var(--color-text-light);
}

.btn:hover i {
    transform: translateX(5px);
}

/* --- Sekcja Projekty --- */
#projects {
    background-color: var(--color-primary-bg);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.project-item {
    background: rgba(255,255,255,0.05); /* Półprzezroczyste tło */
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border: 1px solid rgba(255,255,255,0.1);
}

.project-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 50px rgba(0,255,153,0.3);
}

.project-item img {
    width: 100%;
    /* height: 250px; Stała wysokość obrazków */
    object-fit: cover; /* Dopasowanie obrazka */
    display: block;
    transition: transform 0.5s ease;
}

.project-item:hover img {
    transform: scale(1.1);
}

.project-item h3 {
    font-size: 1.8rem;
    margin-top: 25px;
    margin-bottom: 10px;
    padding: 0 25px;
    color: var(--color-hero-gradient-start);
}

.project-item p {
    font-size: 1rem;
    color: rgba(236, 240, 241, 0.7);
    padding: 0 25px;
    margin-bottom: 25px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-accent-green);
    text-decoration: none;
    font-weight: 700;
    padding: 0 25px 25px;
    transition: color 0.3s ease;
}

.project-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.project-link:hover {
    color: var(--color-accent-blue);
}

.project-link:hover i {
    transform: translateX(5px);
}

/* --- Sekcja Kontakt --- */
#contact {
    background: linear-gradient(135deg, var(--color-hero-gradient-end) 0%, var(--color-accent-orange) 100%);
    text-align: center;
    overflow: hidden;
    position: relative;
}

#contact::before {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    top: 20%;
    left: 10%;
    animation: float1 10s ease-in-out infinite alternate;
}
#contact::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    bottom: 20%;
    right: 10%;
    animation: float2 12s ease-in-out infinite alternate-reverse;
}

@keyframes float1 {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 50px); }
}
@keyframes float2 {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-30px, -50px); }
}


#contact h2 {
    border-bottom: 3px solid var(--color-accent-orange);
    color: var(--color-text-light);
    background: none;
    -webkit-text-fill-color: var(--color-text-light);
}

#contact .section-description {
    color: rgba(255,255,255,0.85);
    margin-bottom: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    margin-top: 50px;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 1.6rem;
    font-weight: 700;
    transition: color 0.3s ease, transform 0.3s ease;
}

.contact-link i {
    margin-right: 15px;
    font-size: 2rem;
    color: var(--color-accent-green);
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--color-accent-green);
    transform: translateX(5px);
}

.contact-link:hover i {
    color: var(--color-text-light);
}

.social-links {
    margin-top: 40px;
    display: flex;
    gap: 30px;
}

.social-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: var(--color-text-light);
    font-size: 1.8rem;
    transition: background 0.3s ease, transform 0.3s ease, color 0.3s ease;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.social-icon:hover {
    background: var(--color-accent-green);
    color: var(--color-dark-text);
    transform: translateY(-8px) scale(1.1);
    box-shadow: 0 8px 25px rgba(0,255,153,0.5);
}

/* --- Stopka --- */
footer {
    text-align: center;
    padding: 40px 0;
    background: #0d041a; /* Jeszcze ciemniejszy odcień */
    color: rgba(236, 240, 241, 0.6);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* --- Media Queries (Responsywność) --- */
@media (max-width: 992px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
    .project-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; margin-bottom: 40px;}
    .section-description { margin-bottom: 60px; font-size: 1.1rem;}
    nav { display: none; } /* Ukrywamy menu na bardzo małych ekranach */
    header .container { justify-content: center; }
    .logo { margin-bottom: 0; }
    #hero { min-height: 85vh; padding-top: 80px;}
    .btn { padding: 12px 30px; font-size: 1rem;}
    /* .project-item img { height: 200px; } */
    .project-item h3 { font-size: 1.6rem; }
    .contact-link { font-size: 1.4rem; }
    .contact-link i { font-size: 1.8rem; margin-right: 10px; }
    .social-links { gap: 20px; }
    .social-icon { width: 50px; height: 50px; font-size: 1.5rem; }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    p { font-size: 1rem; }
    .container { padding: 0 15px; }
    .project-grid { gap: 25px; }
    .contact-link { font-size: 1.2rem; }
    .contact-link i { font-size: 1.5rem; }
}