/* ==========================================
   CZCIONKI I PODSTAWOWE ZMIENNE
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Merriweather:wght@300;400;700;900&family=Lora:ital,wght@0,400;0,600;1,400&family=Source+Sans+3:wght@300;400;600;700&display=swap');

:root {
    /* Kolory trybu ciemnego - Elegancka paleta z zielonymi akcentami */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f29;
    --bg-tertiary: #242b38;
    --text-primary: #e8f0f7;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    --accent-primary: #4ade80;
    --accent-secondary: #34d399;
    --accent-hover: #6ee7a7;
    --accent-dark: #22c55e;
    --border-color: #2d3748;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --overlay-bg: rgba(15, 20, 25, 0.85);
    
    /* Typografia */
    --font-display: 'Merriweather', serif;
    --font-body: 'Lora', Georgia, serif;
    --font-ui: 'Source Sans 3', -apple-system, sans-serif;
    
    /* Rozmiary */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    
    /* Przejścia */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Tryb jasny - Świeże kolory z miętowym akcentem */
body.light {
    --bg-primary: #fafbfc;
    --bg-secondary: #f0f4f8;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --accent-primary: #10b981;
    --accent-secondary: #059669;
    --accent-hover: #059669;
    --accent-dark: #047857;
    --border-color: #cbd5e0;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --overlay-bg: rgba(250, 251, 252, 0.9);
}

/* ==========================================
   RESET I PODSTAWOWE STYLE
   ========================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 17px;
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.dark {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(74, 222, 128, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(52, 211, 153, 0.03) 0%, transparent 50%);
}

/* ==========================================
   HEADER I NAWIGACJA
   ========================================== */

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: center;
    align-items: center;
}

.site-title,
#siteTitle {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin: 0;
}

/* Hamburger - tylko na mobile */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
    transition: transform var(--transition-base);
    position: fixed;
    left: var(--spacing-md);
    top: var(--spacing-sm);
}

.hamburger span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger:hover {
    transform: scale(1.1);
}

/* Nawigacja - desktop */
nav {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin: var(--spacing-sm) auto 0;
    padding: 0 var(--spacing-md);
    flex-wrap: wrap;
}

nav button,
nav a button {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 600;
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

nav button:hover,
nav a button:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

#toggleTheme {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

#toggleTheme:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    color: white;
}

/* Overlay dla menu mobilnego */
#overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 98;
    opacity: 0;
    transition: opacity var(--transition-base);
}

/* ==========================================
   RESPONSYWNOŚĆ - MENU MOBILNE
   ========================================== */

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 5rem var(--spacing-md) var(--spacing-md);
        margin: 0;
        gap: var(--spacing-md);
        z-index: 99;
        transition: right var(--transition-base);
        border-left: 1px solid var(--border-color);
        box-shadow: -4px 0 20px var(--shadow-color);
    }
    
    nav.open {
        right: 0;
    }
    
    nav.open ~ #overlay {
        display: block;
        opacity: 1;
    }
    
    nav button,
    nav a button {
        width: 100%;
        text-align: left;
        font-size: 1.1rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .hamburger.open span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .hamburger.open span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.open span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}

/* ==========================================
   MAIN CONTENT
   ========================================== */

main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    width: 100%;
    text-align: center;
}

main h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    line-height: 1.2;
    text-align: center;
}

main h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    text-align: center;
}

main p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 1.05rem;
    text-align: center;
}

main ul {
    margin: var(--spacing-md) auto;
    padding-left: 0;
    list-style-position: inside;
    text-align: center;
}

main li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: center;
}

main li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================
   ARTYKUŁY - WYGODNE CZYTANIE
   ========================================== */

article {
    max-width: 750px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px var(--shadow-color);
    text-align: center;
}

article h2 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.25;
    letter-spacing: -0.03em;
    border-bottom: 3px solid var(--accent-primary);
    padding-bottom: var(--spacing-sm);
    text-align: center;
}

article h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    text-align: center;
}

article p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

article p:first-of-type {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 400;
}

/* Responsywność dla artykułów */
@media (max-width: 768px) {
    article {
        padding: var(--spacing-lg) var(--spacing-md);
        border-radius: var(--border-radius);
    }
    
    article h2 {
        font-size: 1.8rem;
    }
    
    article h3 {
        font-size: 1.3rem;
    }
    
    article p {
        font-size: 1.05rem;
        text-align: center;
    }
}

/* ==========================================
   PRZYCISKI
   ========================================== */

.btn,
button.btn {
    display: inline-block;
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(74, 222, 128, 0.25);
    margin: var(--spacing-md) auto;
}

/* Wyśrodkowanie linków z przyciskami */
a:has(.btn) {
    display: block;
    text-align: center;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-base), height var(--transition-base);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(74, 222, 128, 0.35);
}

.btn:active {
    transform: translateY(-1px);
}

/* Animacja pulsowania */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(74, 222, 128, 0.25);
    }
    50% {
        box-shadow: 0 4px 25px rgba(74, 222, 128, 0.5);
    }
}

.pulse-on-load {
    animation: pulse 2s ease-in-out 3;
}

/* ==========================================
   FOOTER
   ========================================== */

footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    margin-top: auto;
}

footer p {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

/* ==========================================
   COOKIE BANNER
   ========================================== */

#cookieBanner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-md);
    text-align: center;
    z-index: 1000;
    border-top: 2px solid var(--accent-primary);
    box-shadow: 0 -4px 20px var(--shadow-color);
    font-family: var(--font-ui);
}

#acceptCookies {
    margin-left: var(--spacing-sm);
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    background-color: var(--accent-primary);
    color: white;
    font-weight: 600;
    font-family: var(--font-ui);
    transition: all var(--transition-base);
}

#acceptCookies:hover {
    background-color: var(--accent-hover);
    transform: scale(1.05);
}

/* ==========================================
   EFEKTY DODATKOWE
   ========================================== */

/* Link styling */
a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* Zaznaczenie tekstu */
::selection {
    background-color: var(--accent-primary);
    color: white;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background-color: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 6px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--accent-primary);
}

/* ==========================================
   RESPONSYWNOŚĆ - OGÓLNA
   ========================================== */

@media (max-width: 1024px) {
    main h1 {
        font-size: 2rem;
    }
    
    main h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    .site-title,
    #siteTitle {
        font-size: 1.2rem;
    }
    
    main {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    main h1 {
        font-size: 1.75rem;
    }
    
    main h2 {
        font-size: 1.3rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
        padding: 0.9rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 var(--spacing-sm);
    }
    
    main {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    article {
        padding: var(--spacing-md);
    }
}

/* ==========================================
   ANIMACJE ŁADOWANIA
   ========================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

main,
article {
    animation: fadeIn 0.6s ease-out;
}

/* ==========================================
   DARK MODE - DODATKOWE AKCENTY
   ========================================== */

body.dark article {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(28, 33, 40, 0.8) 100%);
    border: 1px solid var(--border-color);
}

body.light article {
    background: white;
    border: 1px solid var(--border-color);
}

/* ==========================================
   FOCUS STATES - ACCESSIBILITY
   ========================================== */

button:focus,
a:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* ==========================================
   PRINT STYLES
   ========================================== */

@media print {
    header,
    footer,
    nav,
    .btn,
    #cookieBanner {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    article {
        box-shadow: none;
        border: none;
    }
}