:root,[data-theme=dark]{--bg: #0a0f14;--surface: #111920;--surface-high: #1a2430;--border: #243040;--text: #f0f4f8;--text-secondary: #8899aa;--text-tertiary: #506070;--primary: #0d9488;--primary-hover: #0f766e;--primary-muted: rgba(13, 148, 136, .1);--error: #f87171;--error-muted: #7f1d1d}[data-theme=light]{--bg: #f8fafb;--surface: #ffffff;--surface-high: #f0f4f6;--border: #e2e8f0;--text: #0f172a;--text-secondary: #64748b;--text-tertiary: #94a3b8;--primary: #0d9488;--primary-hover: #0f766e;--primary-muted: rgba(13, 148, 136, .08);--error: #ef4444;--error-muted: #fee2e2}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.container{max-width:960px;margin:0 auto;padding:24px 16px}h1{font-size:24px;margin-bottom:4px}.subtitle{color:var(--text-secondary);font-size:14px;margin-bottom:24px}.month-label{color:var(--text-secondary);font-size:14px;font-weight:500;margin:24px 0 8px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}.grid img{width:100%;aspect-ratio:1;object-fit:cover;cursor:pointer;background:var(--surface)}.grid .placeholder{width:100%;aspect-ratio:1;background:var(--surface)}.password-card{background:var(--surface);border-radius:16px;padding:40px;max-width:400px;margin:80px auto;border:1px solid var(--border);text-align:center}.password-card h2{margin-bottom:16px}.password-card p{color:var(--text-secondary);margin-bottom:24px;font-size:14px}.password-card input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:12px;font-size:14px;background:var(--surface-high);color:var(--text);margin-bottom:12px}.password-card input:focus{outline:none;border-color:var(--primary)}.btn{padding:12px 24px;border:none;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;background:var(--primary);color:#fff;width:100%}.btn:hover{background:var(--primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:8px 16px;width:auto;font-size:13px}.error{color:var(--error);font-size:13px;margin-bottom:12px}.loading{text-align:center;padding:80px 0;color:var(--text-secondary)}.spinner{display:inline-block;width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}.spinner-lg{width:36px;height:36px;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}.lightbox{position:fixed;inset:0;background:#000000f2;display:flex;align-items:center;justify-content:center;z-index:100;cursor:pointer}.lightbox img{max-width:95vw;max-height:95vh;object-fit:contain}.icon-lock{font-size:48px;margin-bottom:16px}.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.dl-progress{width:100%;height:4px;background:var(--border);border-radius:2px;margin-top:8px;overflow:hidden}.dl-progress-bar{height:100%;background:var(--primary);transition:width .2s}.error-card{background:var(--surface);border-radius:16px;padding:48px 40px;max-width:440px;margin:80px auto;border:1px solid var(--border);text-align:center}.error-card .icon{font-size:48px;margin-bottom:16px}.error-card h2{margin-bottom:8px}.error-card p{color:var(--text-secondary);font-size:14px;line-height:1.5}@media(min-width:640px){.grid{grid-template-columns:repeat(4,1fr)}}