/* =====================================================
   ARNA Techs Website
   Leichte PHP/MySQL-Website mit Blog/Admin-Bereich
===================================================== */
:root {
    --bg: #0f0f10;
    --bg-soft: #171719;
    --card: rgba(25, 25, 28, 0.94);
    --card-border: rgba(255, 255, 255, 0.08);
    --text: #eaeaea;
    --muted: #b9b9bf;
    --dim: #8a8a93;
    --accent: #e2187d;
    --accent-2: #ff4fa3;
    --accent-dark: #8d0d4d;
    --success: #1eb980;
    --warning: #ffb020;
    --danger: #ff4d4d;
    --code-bg: #08090c;
    --radius: 22px;
    --shadow: 0 18px 60px rgba(0,0,0,.38);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { min-height: 100%; }
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(226,24,125,.16), transparent 30rem),
        radial-gradient(circle at bottom right, rgba(255,79,163,.08), transparent 26rem),
        var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    line-height: 1.55;
}
a { color: inherit; }
img { max-width: 100%; }

/* Loader */
#loader {
    position: fixed;
    inset: 0;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
#loader.hide { opacity: 0; pointer-events: none; transition: opacity .45s ease; }
.spinner {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 4px solid #303035;
    border-top-color: var(--accent-2);
    animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.fade-in { animation: fadeIn .75s ease forwards; }
/* Content must stay visible even if JavaScript, Cloudflare Rocket Loader or IntersectionObserver fails. */
.fade-on-scroll { opacity: 1; transform: none; }
.js-enabled .fade-on-scroll { opacity: 0; transform: translateY(12px); }
.js-enabled .fade-on-scroll.fade-in { opacity: 1; transform: none; }
@keyframes fadeIn { from { opacity:0; transform:translateY(12px);} to { opacity:1; transform:none;} }

/* Header */
.site-header {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #111 0%, #2b0620 70%, #160010 100%);
    border-bottom: 3px solid var(--accent);
}
.circuit-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: .35;
    mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
}
.header-inner {
    position: relative;
    max-width: 1050px;
    margin: 0 auto;
    padding: 40px 20px 34px;
    text-align: center;
}
.logo-round {
    width: 190px;
    height: 190px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 18px;
    box-shadow: 0 0 38px rgba(255,79,163,.32);
}
.logo-link { display:inline-flex; text-decoration:none; }
.site-title { font-size: clamp(2.2rem, 5vw, 3.35rem); line-height: 1; font-weight: 850; letter-spacing: .02em; }
.site-title span { color: var(--accent-2); }
.tagline { margin-top: 12px; color: #eeeeee; opacity: .9; font-size: 1.05rem; }
.top-nav { margin-top: 24px; display:flex; justify-content:center; gap: 12px; flex-wrap: wrap; }
.top-nav a {
    text-decoration:none;
    padding: 9px 16px;
    border: 1px solid rgba(255,255,255,.1);
    background: rgba(0,0,0,.22);
    border-radius: 999px;
    color:#f3f3f3;
    transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.top-nav a:hover, .top-nav a.active { background: var(--accent); border-color: var(--accent-2); transform: translateY(-1px); }

/* Layout */
.site-main { flex:1; width:100%; max-width: 1050px; margin: 0 auto; padding: 34px 18px 48px; }
.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: clamp(22px, 4vw, 34px);
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}
.card h2 { font-size: clamp(1.55rem, 3vw, 2.05rem); margin-bottom: 14px; }
.card h3 { margin-bottom: 8px; }
.lead { font-size: 1.12rem; color: #f0f0f0; }
.muted { color: var(--muted); }
.grid-2 { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.grid-3 { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }

/* Hero / about */
.hero-card { display:grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items:center; }
.hero-actions { display:flex; flex-wrap:wrap; gap: 12px; margin-top: 22px; }
.hero-image { text-align:center; }
.hero-image img {
    max-width: 275px;
    border-radius: 32px;
    border: 1px solid rgba(255,255,255,.12);
    box-shadow: 0 20px 55px rgba(0,0,0,.45);
}
.logo-feature img {
    max-width: 320px;
    border-radius: 50%;
    object-fit: cover;
}

.portrait-feature img {
    width: min(340px, 100%);
    max-width: 340px;
    aspect-ratio: 1 / 1;
    border-radius: 32px;
    object-fit: cover;
    object-position: center;
    box-shadow: 0 22px 58px rgba(0,0,0,.48), 0 0 34px rgba(255,79,163,.18);
}
.topic-pill {
    display:inline-flex;
    align-items:center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.09);
    color: #f2f2f2;
    font-size:.94rem;
}
.topic-grid { display:flex; flex-wrap: wrap; gap:10px; margin-top: 18px; }

.about-card {
    display:grid;
    grid-template-columns: 260px 1fr;
    gap: 26px;
    align-items:start;
}
.about-photo-wrap { text-align:center; }
.about-photo {
    width: 240px;
    height: 240px;
    border-radius: 28px;
    object-fit: cover;
    border: 1px solid rgba(255,255,255,.14);
    box-shadow: 0 18px 46px rgba(0,0,0,.45), 0 0 28px rgba(255,79,163,.18);
}
.about-text p { margin-bottom: 12px; }
.about-text p:last-child { margin-bottom: 0; }

/* Buttons and links */
.btn, button, .video-link, .read-more {
    border: none;
    appearance: none;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    border-radius: 999px;
    padding: 10px 16px;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
    transition: transform .18s ease, filter .18s ease, background .18s ease;
}
.btn:hover, button:hover, .video-link:hover, .read-more:hover { transform: translateY(-1px); filter: brightness(1.08); }
.btn.secondary { background:#2b2b30; border:1px solid rgba(255,255,255,.1); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 7px 11px; font-size: .9rem; }

/* YouTube */
.yt-wrapper p { color: var(--muted); }
.yt-embed { position:relative; width:100%; aspect-ratio: 16 / 9; border-radius: 18px; overflow:hidden; background:#000; border:1px solid rgba(255,255,255,.08); }
.yt-embed iframe { position:absolute; inset:0; width:100%; height:100%; }
.video-list { display:grid; gap: 18px; margin-top: 22px; }
.video-item {
    display:grid;
    grid-template-columns: 240px 1fr;
    gap: 18px;
    padding: 16px;
    border: 1px solid rgba(255,255,255,.08);
    background: rgba(255,255,255,.035);
    border-radius: 18px;
}
.video-thumb img { width:100%; aspect-ratio:16/9; object-fit:cover; border-radius: 14px; display:block; }
.video-meta p { color: var(--muted); margin: 7px 0; }
.video-date, .post-meta { color: var(--dim); font-size:.92rem; margin-bottom: 10px; }
.video-actions { display:flex; gap: 12px; align-items:center; justify-content:center; flex-wrap:wrap; margin-top: 22px; }

/* Social / contact */
.social-list { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 12px; }
.social-bar {
    text-decoration:none;
    border-radius: 16px;
    padding: 15px 16px;
    color: #fff;
    border:1px solid rgba(255,255,255,.14);
    font-weight: 800;
    text-align:center;
    letter-spacing:.01em;
    box-shadow: 0 10px 24px rgba(0,0,0,.24);
    transition: transform .18s ease, filter .18s ease, box-shadow .18s ease;
}
.social-bar:hover { transform: translateY(-2px); filter: brightness(1.08); box-shadow: 0 14px 30px rgba(0,0,0,.34); }
.social-bar.youtube { background:#ff0000; }
.social-bar.instagram { background:linear-gradient(135deg,#f58529 0%,#dd2a7b 40%,#8134af 72%,#515bd4 100%); }
.social-bar.linkedin { background:#0a66c2; }
.social-bar.tiktok { background:linear-gradient(135deg,#000 0%,#111 55%,#25f4ee 55%,#fe2c55 100%); }
.social-bar.facebook { background:#1877f2; }
.social-bar.email { background:linear-gradient(135deg,#2b2b30,#4a4a52); }
.contact-form { display:grid; gap: 12px; margin-top: 12px; }
input, textarea, select {
    width:100%;
    border:1px solid rgba(255,255,255,.13);
    background:#111114;
    color: var(--text);
    border-radius: 14px;
    padding: 13px 14px;
    font: inherit;
}
textarea { min-height: 140px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline:2px solid rgba(255,79,163,.35); border-color: var(--accent-2); }
.manual-mail { margin-top: 14px; color: var(--muted); }
.manual-mail a { color:#fff; }
.contact-direct {
    margin: 18px 0 0;
    text-align: center;
    color: var(--muted);
}
.contact-direct a {
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}
.contact-direct a:hover { color: var(--accent-2); }

/* Blog */
.blog-list { display:grid; gap: 18px; margin-top: 18px; }
.blog-card {
    display:grid;
    gap: 12px;
    padding: 20px;
    border-radius: 18px;
    background: rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
}
.blog-card h3 a { text-decoration:none; }
.blog-card h3 a:hover { color: var(--accent-2); }
.category { display:inline-flex; width:max-content; border:1px solid rgba(255,79,163,.35); color:#ffd4d4; border-radius:999px; padding:4px 10px; font-size:.85rem; }
.pagination { display:flex; justify-content:space-between; gap: 12px; margin-top: 24px; flex-wrap:wrap; }
.article-header h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height:1.1; }
.article-body { margin-top: 22px; }
.article-body h2, .article-body h3, .article-body h4 { margin: 26px 0 10px; }
.article-body p { margin: 0 0 16px; color:#ededed; }
.article-body ul, .article-body ol { padding-left: 24px; margin: 0 0 16px; }
.article-body li { margin: 5px 0; }
.article-body blockquote { border-left:4px solid var(--accent); padding: 10px 14px; background:rgba(226,24,125,.09); border-radius:12px; margin:16px 0; }
.inline-code { background: rgba(255,255,255,.08); padding: 2px 6px; border-radius: 6px; color:#fff; }
.code-toolbar {
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap: 10px;
    margin-top: 18px;
    background:#17181d;
    border:1px solid rgba(255,255,255,.08);
    border-bottom: none;
    border-radius: 14px 14px 0 0;
    padding: 8px 10px;
    color: var(--muted);
    font-size:.84rem;
}
.copy-code { padding: 6px 10px; font-size:.82rem; background:#2a2b31; }
.code-block {
    overflow:auto;
    background: var(--code-bg);
    color:#f6f6f6;
    padding: 16px;
    border-radius: 0 0 14px 14px;
    border:1px solid rgba(255,255,255,.08);
    margin-bottom: 18px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size:.94rem;
    line-height:1.48;
}

/* Admin */
.admin-shell { max-width: 1180px; }
.admin-top {
    display:flex;
    justify-content:space-between;
    gap: 12px;
    align-items:center;
    flex-wrap:wrap;
    margin-bottom: 18px;
}
.admin-nav { display:flex; flex-wrap:wrap; gap:10px; }
.table-wrap { overflow:auto; border-radius: 16px; border:1px solid rgba(255,255,255,.08); }
table { width:100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 12px; border-bottom:1px solid rgba(255,255,255,.08); text-align:left; vertical-align: top; }
th { background: rgba(255,255,255,.05); color:#fff; }
td { color: var(--muted); }
.status { display:inline-flex; border-radius:999px; padding:4px 9px; font-size:.83rem; font-weight:700; }
.status.published { background: rgba(30,185,128,.14); color:#a8ffd9; }
.status.draft { background: rgba(255,176,32,.13); color:#ffe0a6; }
.form-grid { display:grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.admin-help { font-size:.92rem; color: var(--muted); }
.alert { padding: 14px 16px; border-radius: 16px; margin: 12px 0; border:1px solid rgba(255,255,255,.1); }
.alert.ok { background: rgba(30,185,128,.12); border-color:rgba(30,185,128,.35); }
.alert.warn { background: rgba(255,176,32,.12); border-color:rgba(255,176,32,.35); }
.alert.error { background: rgba(255,77,77,.12); border-color:rgba(255,77,77,.35); }

/* Footer */
.site-footer {
    border-top:1px solid rgba(255,255,255,.08);
    background:#09090a;
    color: var(--dim);
    padding: 24px 18px;
    text-align:center;
}
.footer-links { display:flex; gap: 14px; justify-content:center; flex-wrap:wrap; margin-top:8px; }
.footer-links a { color: var(--muted); text-decoration:none; }
.footer-links a:hover { color:#fff; }

@media (max-width: 800px) {
    .hero-card, .about-card, .grid-2, .grid-3, .video-item, .social-list, .form-grid { grid-template-columns: 1fr; }
    .header-inner { padding-top: 28px; }
    .logo-round { width:150px; height:150px; }
    .about-photo { width: 210px; height: 210px; }
    .site-main { padding-inline: 12px; }
    .card { border-radius: 18px; }
    table { min-width: 680px; }
}