:root {
    --primary: #ff7b00;
    --bg-dark: #0a0a0a;
    --bg-card: #141414;
    --text: #ffffff;
    --text-muted: #888888;
    --gray: #2a2a2a;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    position: relative;
    padding-top: 70px;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 123, 0, 0.1);
}

.logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; flex-shrink: 0; }
.logo img.logo-img { height: 30px; width: auto; }
.logo-text-image {
    height: 26px;
    width: auto;
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.logo:hover .logo-text-image {
    transform: rotate(360deg) scale(1.05);
}

nav ul { display: flex; list-style: none; gap: 1.2rem; margin: 0; padding: 0; }
nav a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
    padding: 0.5rem 0;
}
nav a:hover { color: var(--primary); }
nav a.active { color: var(--primary); font-weight: 600; }
nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

.lang-switcher { display: flex; gap: 0.5rem; flex-shrink: 0; }
.lang-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    font-size: 0.9rem;
}
.lang-btn:hover, .lang-btn.active { background: var(--primary); color: #000; }

@media (max-width: 1150px) {
    header { height: auto; padding: 1rem 3%; flex-wrap: wrap; gap: 1rem; }
    body { padding-top: 140px; }
    nav { width: 100%; order: 3; }
    nav ul { flex-wrap: wrap; justify-content: center; gap: 0.8rem 1.2rem; }
    .logo-img { height: 26px; }
    .logo-text-image { height: 22px; }
}

.about-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 40px 5% 100px;
}

.about-content {
    background: var(--bg-card);
    padding: 2.2rem;
    border-radius: 16px;
    border: 1px solid var(--gray);
    margin-bottom: 2rem;
}
.about-content h2 { font-size: 2rem; color: var(--primary); margin-bottom: 0.5rem; }
.about-content p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 0.8rem; line-height: 1.8; }

.philosophy-section {
    background: linear-gradient(135deg, rgba(255, 123, 0, 0.1) 0%, rgba(255, 123, 0, 0.05) 100%);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 123, 0, 0.3);
    margin-top: 2rem;
}
.philosophy-section h2 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.philosophy-section p { font-size: 1.1rem; color: var(--text-muted); line-height: 1.8; }

footer {
    background: var(--bg-card);
    border-top: 1px solid var(--gray);
    padding: 2rem 5%;
    color: var(--text-muted);
    position: relative;
    z-index: 2;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 2rem;
}
.footer-col {
    min-width: 200px;
}
.footer-col--support {
    flex: 2;
}
.footer-col--buyers,
.footer-col--social {
    flex: 1;
}
.footer-col h3 {
    color: var(--text);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}
.footer-col a {
    color: var(--text-muted);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}
.footer-col a:hover { color: var(--primary); }
.footer-col--buyers a { display: block; }
.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.3rem 1rem;
}
.footer-contact {
    display: flex;
    align-items: center;
    margin-bottom: 0.3rem;
}
.footer-contact img.footer-icon {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    object-fit: contain;
}
.footer-contact a,
.footer-contact span {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}
.footer-contact a:hover { color: var(--primary); }
.social-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}
.social-link {
    display: inline-block;
    transition: transform 0.3s, filter 0.3s;
}
.social-link img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    display: block;
}
.social-link:hover {
    transform: translateY(-3px);
    filter: brightness(1.3);
}
.copyright {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .about-content, .philosophy-section { padding: 1.5rem 1rem; }
    .footer-container { flex-direction: column; }
    .footer-col--support,
    .footer-col--buyers,
    .footer-col--social { flex: 1; }
    .support-grid { grid-template-columns: 1fr; }
}

.privacy-modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85); backdrop-filter: blur(8px);
    z-index: 9999; display: none; align-items: center; justify-content: center;
    padding: 1rem;
}
.privacy-modal.active { display: flex; }
.privacy-content {
    background: var(--bg-card); border: 1px solid var(--gray);
    border-radius: 20px; padding: 2.5rem; max-width: 500px; text-align: center;
    box-shadow: 0 20px 60px rgba(255, 123, 0, 0.15);
}
.privacy-content h3 { color: var(--primary); margin-bottom: 1rem; font-size: 1.5rem; }
.privacy-content p { color: var(--text-muted); line-height: 1.6; margin-bottom: 1.5rem; font-size: 0.95rem; }
.privacy-content a { color: var(--primary); text-decoration: underline; }
.privacy-buttons .btn { 
    width: 100%; text-align: center; cursor: pointer; border: none; font-size: 1rem;
    padding: 1rem 2.5rem; background: var(--primary); color: #000; border-radius: 50px; font-weight: 600;
}