/* ===================================
   Fundacja Nieś Dobro - Stylesheet
   Warm, elegant design for charity
   =================================== */

/* CSS Variables */
:root {
    --color-primary: #00aeef;
    --color-primary-dark: #0095d0;
    --color-primary-light: #e6f7fd;
    --color-accent: #007bb5;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-bg: #ffffff;
    --color-bg-warm: #f8f9fa;
    --color-bg-cream: #f0f4f6;
    --color-white: #ffffff;
    --color-dark: #1a1a2e;
    
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 8px 40px rgba(0, 0, 0, 0.1);
    --shadow-strong: 0 16px 60px rgba(0, 0, 0, 0.14);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

address {
    font-style: normal;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Section */
.section {
    padding: 100px 0;
}

.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.section-label-center {
    display: block;
    text-align: center;
}

.section-title {
    text-align: center;
    margin-bottom: 24px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto 60px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-donate {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    padding: 18px 40px;
    font-size: 1.0625rem;
    font-weight: 600;
}

.btn-donate:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-strong);
}

/* Pulse Animation */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 174, 239, 0.5);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(0, 174, 239, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 174, 239, 0);
    }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
    background-color: rgba(253, 251, 247, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: filter var(--transition-base);
}

/* White logo in header (before scroll) */
.header:not(.scrolled) .logo-img {
    filter: brightness(0) invert(1);
}

/* Original blue logo after scroll */
.header.scrolled .logo-img {
    filter: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: color var(--transition-fast);
}

.header.scrolled .nav-links a {
    color: var(--color-text);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: background-color var(--transition-base);
}

.header.scrolled .mobile-menu-btn span {
    background-color: var(--color-dark);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 46, 0.8) 0%,
        rgba(0, 95, 130, 0.7) 50%,
        rgba(0, 174, 239, 0.6) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    color: var(--color-white);
}

.hero-tagline {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-primary-light);
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-quote {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-style: italic;
    color: var(--color-primary-light);
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
}

.scroll-arrow {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--color-primary-light);
    border-radius: 2px;
    animation: scrollBounce 1.5s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(12px); opacity: 0.3; }
}

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

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* About Section */
.about {
    background-color: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
}

.about-image-accent {
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 3px solid var(--color-primary-light);
    border-radius: var(--radius-lg);
    z-index: -1;
    background: linear-gradient(135deg, rgba(0, 174, 239, 0.1) 0%, transparent 100%);
}

.about-content h2 {
    margin-bottom: 24px;
}

.about-content p {
    color: var(--color-text-light);
    font-size: 1.0625rem;
}

/* Pillars Section */
.pillars {
    background-color: var(--color-bg-warm);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.pillar-card {
    background-color: var(--color-white);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.pillar-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.pillar-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pillar-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.pillar-card h3 {
    margin-bottom: 16px;
    color: var(--color-dark);
}

.pillar-card p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

/* Help Section */
.help {
    background-color: var(--color-bg);
}

.help-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.help-card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.help-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.help-card-image {
    height: 240px;
    overflow: hidden;
}

.help-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.help-card-content {
    padding: 40px;
}

.help-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary-light);
    line-height: 1;
    margin-bottom: 16px;
    display: block;
}

.help-card h3 {
    margin-bottom: 20px;
}

.help-card p {
    color: var(--color-text-light);
}

.help-highlight {
    font-weight: 500;
    color: var(--color-text);
    margin-top: 20px;
    margin-bottom: 28px;
}

.help-account {
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: 28px;
    padding: 12px 16px;
    background: var(--color-bg-warm);
    border-radius: 8px;
    letter-spacing: 0.5px;
}

/* News Section */
.news {
    background: linear-gradient(135deg, var(--color-bg-warm) 0%, var(--color-bg-cream) 100%);
}

.news-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.news-content h2 {
    margin-bottom: 24px;
}

.news-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 40px;
}

.news-text strong {
    color: var(--color-primary);
}

.news-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.news-image img {
    width: 100%;
    height: auto;
}

/* Contact Section */
.contact {
    background-color: var(--color-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-info h2 {
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    color: var(--color-accent);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.contact-item a,
.contact-item address {
    color: var(--color-text);
    font-size: 1.0625rem;
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--color-primary);
}

.contact-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.contact-image img {
    width: 100%;
    height: auto;
}

/* Footer */
.footer {
    background-color: var(--color-dark);
    padding: 60px 0;
    text-align: center;
}

.footer-content {
    color: rgba(255, 255, 255, 0.7);
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 40px;
    width: auto;
}

.footer-tagline {
    font-family: var(--font-display);
    font-style: italic;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
}

.footer-legal {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.footer-copy {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.4);
}

/* Responsive */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .help-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 70px 0;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background-color: var(--color-white);
        box-shadow: var(--shadow-medium);
        padding: 20px 0;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        display: block;
        padding: 16px 24px;
        color: var(--color-text);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 24px 60px;
        min-height: auto;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .pillars-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 60px auto 0;
    }
    
    .about-image-accent {
        display: none;
    }
    
    .help-card-content {
        padding: 32px 24px;
    }
    
    .contact-image {
        display: none;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .pillar-card {
        padding: 32px 24px;
    }
    
    .help-number {
        font-size: 2.5rem;
    }
}