/* Reset i podstawowe style */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    --bg-main: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    --text-main: #1a2232;
    --text-soft: #0b132b;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --nav-bg-soft: rgba(255, 255, 255, 0.9);
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-border: rgba(26, 34, 50, 0.1);
    --accent: #82bbea;
    --accent-strong: #1a2232;
}

body.theme-dark {
    --bg-main: linear-gradient(160deg, #0d1117 0%, #161b22 65%, #0d1117 100%);
    --text-main: #c9d1d9;
    --text-soft: #8b949e;
    --nav-bg: rgba(13, 17, 23, 0.95);
    --nav-bg-soft: rgba(22, 27, 34, 0.9);
    --card-bg: rgba(22, 27, 34, 0.85);
    --card-border: #30363d;
    --accent: #58a6ff;
    --accent-strong: #79c0ff;
}

body {
    font-family: sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

/* Animacje scroll */
.animate-on-scroll {
    opacity: 0;
    -webkit-transform: translateY(50px);
    -moz-transform: translateY(50px);
    -ms-transform: translateY(50px);
    transform: translateY(50px);
    -webkit-transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    -moz-transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-on-scroll.animate-from-left {
    -webkit-transform: translateX(-50px) translateY(20px);
    transform: translateX(-50px) translateY(20px);
}

.animate-on-scroll.animate-from-right {
    -webkit-transform: translateX(50px) translateY(20px);
    transform: translateX(50px) translateY(20px);
}

.animate-on-scroll.animate-scale {
    -webkit-transform: scale(0.9) translateY(30px);
    transform: scale(0.9) translateY(30px);
}

.animate-on-scroll.animate-fade {
    -webkit-transform: translateY(30px);
    transform: translateY(30px);
}

.animate-on-scroll.visible {
    opacity: 1;
    -webkit-transform: translateX(0) translateY(0) scale(1);
    -moz-transform: translateX(0) translateY(0) scale(1);
    -ms-transform: translateX(0) translateY(0) scale(1);
    transform: translateX(0) translateY(0) scale(1);
}

/* Opóźnienia animacji */
.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }
.animate-on-scroll.delay-5 { transition-delay: 0.5s; }
.animate-on-scroll.delay-6 { transition-delay: 0.6s; }

/* Animacja hero */
.hero-content .profile-card {
    -webkit-animation: heroFadeIn 1.2s ease-out;
    animation: heroFadeIn 1.2s ease-out;
}

@-webkit-keyframes heroFadeIn {
    0% {
        opacity: 0;
        -webkit-transform: translateY(40px) scale(0.95);
        transform: translateY(40px) scale(0.95);
    }
    100% {
        opacity: 1;
        -webkit-transform: translateY(0) scale(1);
        transform: translateY(0) scale(1);
    }
}

@keyframes heroFadeIn {
    0% {
        opacity: 0;
        -webkit-transform: translateY(40px) scale(0.95);
        transform: translateY(40px) scale(0.95);
    }
    100% {
        opacity: 1;
        -webkit-transform: translateY(0) scale(1);
        transform: translateY(0) scale(1);
    }
}

/* Pasek nawigacji */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    /* Fallback dla Windows/starszych przeglądarek */
    background: rgba(255, 255, 255, 0.95);
    /* Nowoczesne przeglądarki */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(26, 34, 50, 0.1);
    z-index: 1000;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    -webkit-transform: translateY(-100%);
    transform: translateY(-100%);
    -webkit-animation: slideDown 0.8s ease-out 0.5s forwards;
    animation: slideDown 0.8s ease-out 0.5s forwards;
}

/* Fallback dla przeglądarek bez wsparcia backdrop-filter */
@supports not (backdrop-filter: blur(20px)) {
    .navbar {
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
}

@-webkit-keyframes slideDown {
    to {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@keyframes slideDown {
    to {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo span {
    font-size: 1.8rem;
    font-weight: 700;
    /* Fallback dla Windows */
    color: #1a2232;
    background: linear-gradient(45deg, #1a2232, #82bbea);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Fallback dla przeglądarek bez wsparcia background-clip */
@supports not (background-clip: text) {
    .nav-logo span {
        color: #1a2232;
        background: none;
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: #1a2232;
    font-weight: 500;
    font-size: 1rem;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #82bbea;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, #82bbea, #1a2232);
    -webkit-transition: width 0.3s ease;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.bar {
    width: 25px;
    height: 3px;
    background: #1a2232;
    margin: 3px 0;
    -webkit-transition: 0.3s;
    transition: 0.3s;
    border-radius: 2px;
}

/* Sekcja Hero */
.hero-section {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 0 20px;
}

.hero-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-card {
    padding: 60px 40px;
    width: 100%;
}


.profile-card h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1a2232;
    background: linear-gradient(45deg, #1a2232, #0b132b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(26, 34, 50, 0.1);
}

/* Fallback dla przeglądarek bez wsparcia background-clip */
@supports not (background-clip: text) {
    .profile-card h1 {
        color: #1a2232;
        background: none;
    }
}

.subtitle {
    font-size: 1.5rem;
    opacity: 0.7;
    font-weight: 300;
    color: #0b132b;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(45deg, #82bbea, #1a2232);
    color: white;
    box-shadow: 0 8px 24px rgba(130, 187, 234, 0.3);
}

.btn-primary:hover {
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(130, 187, 234, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-main);
    border: 2px solid rgba(26, 34, 50, 0.2);
}

/* Fallback dla przeglądarek bez wsparcia backdrop-filter */
@supports (backdrop-filter: blur(10px)) {
    .btn-secondary {
        background: rgba(255, 255, 255, 0.7);
        backdrop-filter: blur(10px);
    }
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(26, 34, 50, 0.1);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    text-align: center;
    color: #1a2232;
    opacity: 0.7;
    font-size: 0.9rem;
    -webkit-transition: opacity 0.3s ease, transform 0.3s ease;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.scroll-indicator.hidden {
    opacity: 0;
    -webkit-transform: translateX(-50%) translateY(20px);
    transform: translateX(-50%) translateY(20px);
}

.scroll-arrow {
    font-size: 1.5rem;
    margin-top: 10px;
    -webkit-animation: bounce 2s infinite;
    animation: bounce 2s infinite;
}

@-webkit-keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    40% {
        -webkit-transform: translateY(-10px);
        transform: translateY(-10px);
    }
    60% {
        -webkit-transform: translateY(-5px);
        transform: translateY(-5px);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    40% {
        -webkit-transform: translateY(-10px);
        transform: translateY(-10px);
    }
    60% {
        -webkit-transform: translateY(-5px);
        transform: translateY(-5px);
    }
}

/* Kontener */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px 40px;
}

/* Efekt szkła */
.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 24px;
    box-shadow:
            0 8px 32px rgba(26, 34, 50, 0.1),
            inset 0 1px 0 var(--card-border);
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* Fallback dla przeglądarek bez wsparcia backdrop-filter */
@supports (backdrop-filter: blur(20px)) {
    .glass-effect {
        background: rgba(255, 255, 255, 0.7);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
}

@supports not (backdrop-filter: blur(20px)) {
    .glass-effect {
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 0 8px 32px rgba(26, 34, 50, 0.15);
    }
}

.glass-effect:hover {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    box-shadow:
            0 20px 40px rgba(26, 34, 50, 0.15),
            inset 0 1px 0 var(--card-border);
    background: rgba(255, 255, 255, 0.8);
}

.skills-section, .projects-section, .interests-section, .about-section {
    margin-bottom: 80px;
}

.skills-card, .projects-card, .interests-card, .about-card {
    padding: 40px;
}

.skills-card h2, .projects-card h2, .interests-card h2, .about-card h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    color: var(--text-main);
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(26, 34, 50, 0.1);
}

/* Sekcja umiejętności */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.skill-item {
    background: rgba(255, 255, 255, 0.6);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid rgba(26, 34, 50, 0.1);
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(26, 34, 50, 0.05);
}

.skill-item:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(130, 187, 234, 0.3);
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(26, 34, 50, 0.1);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.skill-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
}

.stars {
    display: flex;
    gap: 2px;
}

.star {
    font-size: 1.2rem;
    color: #cccfd2;
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
}

.star.filled {
    color: #82bbea;
    text-shadow: 0 0 10px rgba(130, 187, 234, 0.3);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: rgba(26, 34, 50, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #82bbea, #1a2232);
    border-radius: 4px;
    width: 0;
    -webkit-transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 0 10px rgba(130, 187, 234, 0.2);
}

/* Sekcja Learning */
.learning-section {
    margin-bottom: 80px;
}

.learning-card {
    padding: 40px;
}

.learning-card h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    color: var(--text-main);
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(26, 34, 50, 0.1);
}

.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.learning-item {
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(26, 34, 50, 0.12);
    border-radius: 16px;
    padding: 22px;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.learning-item:hover {
    transform: translateY(-3px);
    border-color: rgba(130, 187, 234, 0.45);
    box-shadow: 0 14px 28px rgba(26, 34, 50, 0.12);
}

.learning-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.learning-item h3 {
    font-size: 1.15rem;
    color: var(--text-main);
}

.learning-level {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 9px;
    border-radius: 999px;
    color: var(--text-main);
    background: rgba(130, 187, 234, 0.2);
    border: 1px solid rgba(130, 187, 234, 0.4);
}

.learning-item p {
    color: #0b132b;
    opacity: 0.85;
    margin-bottom: 14px;
    line-height: 1.5;
}

.learning-progress {
    height: 8px;
    border-radius: 999px;
    overflow: hidden;
    background: var(s);
}

.learning-progress span {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #82bbea, #1a2232);
}

/* Sekcja projektów */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.project-item {
    background: rgba(255, 255, 255, 0.6);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid rgba(26, 34, 50, 0.1);
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(26, 34, 50, 0.05);
}

.project-item:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(130, 187, 234, 0.3);
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(26, 34, 50, 0.1);
}

.project-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a2232;
    margin-bottom: 8px;
    text-decoration: none;
}

.project-description {
    color: #0b132b;
    opacity: 0.8;
    margin-bottom: 12px;
    line-height: 1.5;
}

.project-language {
    display: inline-block;
    background: rgba(130, 187, 234, 0.15);
    color: #1a2232;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(130, 187, 234, 0.2);
}

/* Sekcja zainteresowań */
.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.interest-item {
    background: rgba(255, 255, 255, 0.6);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(26, 34, 50, 0.1);
    -webkit-transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 8px 24px rgba(26, 34, 50, 0.08);
    cursor: pointer;
}

.interest-item:hover {
    -webkit-transform: translateY(-8px) scale(1.02);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(26, 34, 50, 0.15);
    background: rgba(255, 255, 255, 0.8);
}

.interest-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.interest-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
    filter: brightness(0.8) saturate(1.1);
}

.interest-item:hover .interest-image img {
    -webkit-transform: scale(1.1);
    transform: scale(1.1);
    filter: brightness(0.9) saturate(1.2);
}

.interest-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 34, 50, 0.3), rgba(130, 187, 234, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
}

.interest-item:hover .interest-overlay {
    background: linear-gradient(135deg, rgba(26, 34, 50, 0.2), rgba(130, 187, 234, 0.1));
}

.interest-icon {
    font-size: 3rem;
    opacity: 0.9;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.interest-item:hover .interest-icon {
    -webkit-transform: scale(1.2) rotate(5deg);
    transform: scale(1.2) rotate(5deg);
    opacity: 1;
}

.interest-content {
    padding: 24px;
    text-align: center;
}

.interest-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1a2232;
    margin-bottom: 12px;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.interest-item:hover .interest-content h3 {
    color: #82bbea;
}

.interest-content p {
    color: #0b132b;
    opacity: 0.8;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Sekcja About */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #1a2232;
    margin-bottom: 20px;
    text-align: center;
}

/* Loading i error */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    font-size: 1.1rem;
    color: #1a2232;
    opacity: 0.7;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #82bbea;
    border-top: 2px solid transparent;
    border-radius: 50%;
    -webkit-animation: spin 1s linear infinite;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

@-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    text-align: center;
    padding: 40px;
    color: #dc3545;
    font-size: 1.1rem;
}

/* ASCII Art */
.ascii-container {
    text-align: center;
    margin: 2rem 0;
}

.rotating-ring {
    display: inline-block;
    font-family: monospace;
    color: #393939;
    line-height: 1.1;
    white-space: pre;
    margin: 3rem;
}


/* Footer */
footer {
    background: rgba(255, 255, 255, 0.9);
    color: #1a2232;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    position: relative;
    margin-top: 40px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 1px solid rgba(26, 34, 50, 0.16);
    background: rgba(255, 255, 255, 0.9);
    color: #1a2232;
    border-radius: 999px;
    padding: 6px 0 6px 8px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.theme-toggle:hover {
    border-color: rgba(130, 187, 234, 0.6);
    transform: translateY(-1px);
}

.theme-toggle-track {
    width: 40px;
    height: 22px;
    border-radius: 999px;
    background: rgba(26, 34, 50, 0.15);
    padding: 2px;
    display: inline-flex;
    align-items: center;
}

.theme-toggle-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
    transition: transform 0.25s ease;
}

body.theme-dark .theme-toggle-thumb {
    transform: translateX(18px);
    background: #c9d1d9;
}

/* Dark mode  */
body.theme-dark {
    background: var(--bg-main);
    color: var(--text-main);
}


body.theme-dark .navbar {
    background: var(--nav-bg);
    border-bottom-color: var(--card-border);
}

body.theme-dark .nav-link,
body.theme-dark .skill-name,
body.theme-dark .project-name,
body.theme-dark .interest-content h3,
body.theme-dark .about-text p,
body.theme-dark .loading,
body.theme-dark .rotating-ring,
body.theme-dark footer {
    color: var(--text-main);
}

body.theme-dark .nav-link:hover,
body.theme-dark .interest-item:hover .interest-content h3 {
    color: var(--accent);
}

body.theme-dark .subtitle,
body.theme-dark .project-description,
body.theme-dark .interest-content p,
body.theme-dark .learning-item p {
    color: var(--text-soft);
}

body.theme-dark .glass-effect,
body.theme-dark .skill-item,
body.theme-dark .project-item,
body.theme-dark .interest-item,
body.theme-dark .learning-item,
body.theme-dark footer,
body.theme-dark .btn-secondary,
body.theme-dark .theme-toggle {
    background: var(--card-bg);
    border-color: var(--card-border);
}

body.theme-dark .profile-card h1,
body.theme-dark .nav-logo span {
    background: linear-gradient(45deg, #c9d1d9, #58a6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.theme-dark .btn-primary,
body.theme-dark .skill-progress,
body.theme-dark .learning-progress span {
    background: linear-gradient(45deg, #1f6feb, #58a6ff);
}

body.theme-dark .project-language,
body.theme-dark .learning-level {
    color: #c9d1d9;
    background: rgba(31, 111, 235, 0.2);
    border-color: rgba(88, 166, 255, 0.45);
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        -webkit-transition: 0.3s;
        transition: 0.3s;
        padding: 30px 0;
        gap: 20px;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }

    /* Fallback dla przeglądarek z wsparcie backdrop-filter */
    @supports (backdrop-filter: blur(20px)) {
        .nav-menu {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }
    }

    body.theme-dark .nav-menu {
        background: rgba(22, 27, 34, 0.95);
    }

    .theme-toggle {
        padding: 6px 8px;
    }

    .theme-toggle-text {
        display: none;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        -webkit-transform: translateY(9px) rotate(45deg);
        transform: translateY(9px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        -webkit-transform: translateY(-9px) rotate(-45deg);
        transform: translateY(-9px) rotate(-45deg);
    }

    .profile-card h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .profile-image img {
        width: 150px;
        height: 150px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary, .btn-secondary {
        width: 200px;
        text-align: center;
    }

    .skills-grid,
    .learning-grid,
    .projects-grid,
    .interests-grid {
        grid-template-columns: 1fr;
    }

    .skill-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .container {
        padding: 40px 15px;
    }

    .skills-card, .learning-card, .projects-card, .interests-card, .about-card {
        padding: 30px 20px;
    }

    .skills-card h2, .learning-card h2, .projects-card h2, .interests-card h2, .about-card h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .profile-card h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .skills-card, .learning-card, .projects-card, .interests-card, .about-card {
        padding: 20px 15px;
    }

    .btn-primary, .btn-secondary {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}