:root{--bg:#0f1115;--card:#1a1d24;--accent:#4f7cff;--text:#e8e9ec;--muted:#8a8f9a;--danger:#ff5a5a}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,sans-serif}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center}
.card{background:var(--card);padding:32px;border-radius:16px;width:320px;box-shadow:0 8px 30px rgba(0,0,0,.4)}
h1{font-size:20px;margin:0 0 20px}
input[type=password],input[type=text]{width:100%;padding:12px;border-radius:8px;border:1px solid #333;background:#111;color:var(--text);font-size:18px;margin-bottom:12px;letter-spacing:4px;text-align:center}
input#captchaInput{letter-spacing:2px}
button{width:100%;padding:12px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:16px;cursor:pointer}
button:hover{opacity:.9}
.error{color:var(--danger);font-size:13px;margin-bottom:10px;min-height:16px}
#captchaImg{width:100%;border-radius:8px;margin-bottom:10px;background:#fff}
header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--card)}
header .nav{display:flex;gap:10px;align-items:center}
header button{width:auto;padding:8px 14px}
#monthLabel{font-size:18px;min-width:160px;text-align:center}
.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;padding:16px;max-width:900px;margin:0 auto}
.dow{text-align:center;color:var(--muted);font-size:12px;padding:4px}
.day{background:var(--card);border-radius:10px;padding:10px;min-height:70px;cursor:pointer;position:relative;transition:.15s}
.day:hover{outline:2px solid var(--accent)}
.day.today{outline:2px solid #ffb84f}
.day.empty{background:transparent;cursor:default}
.day .num{font-size:14px}
.day .dot{position:absolute;bottom:8px;right:8px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
#panel{position:fixed;top:0;right:0;height:100%;width:380px;max-width:92vw;background:var(--card);box-shadow:-8px 0 30px rgba(0,0,0,.5);transform:translateX(100%);transition:.25s;padding:20px;overflow-y:auto}
#panel.open{transform:translateX(0)}
#panel h2{margin-top:0}
.thumbs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:16px 0}
.thumbs img{width:100%;border-radius:8px;cursor:pointer}
.thumb-wrap{position:relative}
.thumb-wrap .del{position:absolute;top:4px;right:4px;background:var(--danger);border:none;color:#fff;border-radius:6px;width:22px;height:22px;cursor:pointer;font-size:12px}
#lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;z-index:50}
#lightbox img{max-width:92vw;max-height:92vh;border-radius:8px}
#lightbox.open{display:flex}
.closeBtn{position:fixed;top:16px;right:16px;background:transparent;color:#fff;font-size:24px;border:none;cursor:pointer;width:auto}
label.upload{display:block;text-align:center;border:2px dashed #444;border-radius:10px;padding:16px;cursor:pointer;color:var(--muted)}