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.book-hairline{--bg:#fff;--bg-warm:#f4f4f5;--bg-warm-deep:#ebebee;--bg-sand:#e0e0e4;--surface:#fff;--text-primary:#09090b;--text-mid:#3f3f46;--text-soft:#52525b;--text-fade:#71717b;--text-faint:#83838d;--border:#e6e6e9;--border-card:#e6e6e9;--border-strong:#d6d6da;--hover:#09090b0b;--accent:#f5b544;--accent-hover:#eeab33;--accent-text:#8a5d05;--accent-soft:#f5b54424;--accent-med:#cb8f1e70;--accent-deep:color-mix(in srgb, var(--accent) 66%, #000 34%);--accent-grad:linear-gradient(180deg, color-mix(in srgb, var(--accent-deep) 92%, #fff 8%) 0%, var(--accent-deep) 50%, color-mix(in srgb, var(--accent-deep) 86%, #000 14%) 100%);--on-accent:#fff;--well:#f1f1f3;--well-in:inset 0 1px 2px #09090b0e;--ring:#c4891a8c;--ring-lit:#cb8f1e70;--ring-wide:#f5b54424;--warn:#b45309;--warn-soft:#f59e0b21;--danger:#b91c1c;--danger-soft:#ef44441a;--danger-deep:color-mix(in srgb, var(--danger) 82%, #000 18%);--danger-grad:linear-gradient(180deg, color-mix(in srgb, var(--danger-deep) 92%, #fff 8%) 0%, var(--danger-deep) 50%, color-mix(in srgb, var(--danger-deep) 86%, #000 14%) 100%);--shadow-card:0 10px 28px #09090b12, 0 2px 5px #09090b0d;--shadow-card-hover:0 14px 34px #09090b17, 0 3px 7px #09090b0f;--shadow-card-soft:0 2px 5px #09090b0d, 0 1px 2px #09090b09;--shadow-button:inset 0 1px 0 #fff3, inset 0 -1px 0 #00000029, 0 2px 5px #09090b33, 0 1px 1px #09090b24;--radius:10px;--spring:cubic-bezier(.34, 1.45, .64, 1);font-family:var(--font-geist), "Geist", -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;color:var(--text-primary);background:var(--bg);font-weight:450}:is(html:has(.book-hairline),body:has(.book-hairline)){background:#fff}body:has(.book-hairline):before{display:none}.book-hairline h1,.book-hairline h2,.book-hairline h3{font-family:inherit;font-weight:600}:is(.book-hairline,.book-embed) ::selection{background:var(--accent-soft);color:var(--text-primary)}:is(.book-hairline,.book-embed) :is(a,button,select,[tabindex]):focus-visible{outline:2px solid var(--ring);outline-offset:2px}:is(.book-hairline,.book-embed) .mono{font-family:var(--font-geist-mono), "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;font-variant-numeric:tabular-nums}.book-hairline .bk-logo svg{stroke:var(--text-primary)}.book-hairline .bk-logo span span{letter-spacing:-.02em;font-weight:600}:is(.book-hairline,.book-embed) .hl-kicker{letter-spacing:-.002em;color:var(--text-fade);font-size:12px;font-weight:600}:is(.book-hairline,.book-embed) .hl-btn-primary{background:var(--accent-grad);color:var(--on-accent);border:1px solid color-mix(in srgb, var(--accent-deep) 70%, #000 30%);box-shadow:var(--shadow-button);letter-spacing:-.008em;transition:transform .42s var(--spring), filter .16s ease, box-shadow .16s ease;border-radius:999px;justify-content:center;align-items:center;gap:8px;font-weight:600;display:inline-flex}:is(.book-hairline,.book-embed) .hl-btn-primary:hover:not(:disabled){filter:brightness(1.04);transform:translateY(-1px)}:is(.book-hairline,.book-embed) .hl-btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:inset 0 2px 3px #00000038,0 1px 1px #00000026}:is(.book-hairline,.book-embed) .hl-btn-primary:disabled{opacity:.4;cursor:default}:is(.book-hairline,.book-embed) .hl-btn-danger{background:var(--danger-grad);color:#fff;border:1px solid color-mix(in srgb, var(--danger-deep) 70%, #000 30%);box-shadow:var(--shadow-button);letter-spacing:-.008em;transition:transform .42s var(--spring), filter .16s ease, box-shadow .16s ease;border-radius:999px;justify-content:center;align-items:center;gap:8px;font-weight:600;display:inline-flex}:is(.book-hairline,.book-embed) .hl-btn-danger:hover:not(:disabled){filter:brightness(1.06);transform:translateY(-1px)}:is(.book-hairline,.book-embed) .hl-btn-danger:active:not(:disabled){transform:translateY(0);box-shadow:inset 0 2px 3px #00000038,0 1px 1px #00000026}:is(.book-hairline,.book-embed) .hl-btn-danger:disabled{opacity:.4;cursor:default}:is(.book-hairline,.book-embed) .hl-btn{border:1px solid var(--border);color:var(--text-soft);letter-spacing:-.008em;background:0 0;border-radius:999px;justify-content:center;align-items:center;gap:7px;font-weight:550;transition:color .14s,border-color .14s,background .14s;display:inline-flex}:is(.book-hairline,.book-embed) .hl-btn:hover:not(:disabled){color:var(--text-primary);border-color:var(--border-strong);background:var(--hover)}:is(.book-hairline,.book-embed) .hl-input{background:var(--well);border:1px solid var(--border);width:100%;box-shadow:var(--well-in);color:var(--text-primary);font:inherit;border-radius:999px;font-size:14px;font-weight:450;transition:border-color .18s,box-shadow .18s}:is(.book-hairline,.book-embed) .hl-input:focus{border-color:var(--ring-lit);box-shadow:var(--well-in), 0 0 0 3px var(--ring-wide);outline:none}:is(.book-hairline,.book-embed) .hl-input::placeholder{color:var(--text-faint)}:is(.book-hairline,.book-embed) .hl-area{border-radius:12px}:is(.book-hairline,.book-embed) .hl-input-err{border-color:color-mix(in srgb, var(--danger) 50%, transparent)}:is(.book-hairline,.book-embed) .hl-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}:is(.book-hairline,.book-embed) .hl-card-hover{transition:border-color .16s,background .16s}:is(.book-hairline,.book-embed) .hl-card-hover:hover{border-color:var(--border-strong)}:is(.book-hairline,.book-embed) .hl-disc{background:var(--accent-grad);color:var(--on-accent);border:1px solid color-mix(in srgb, var(--accent-deep) 70%, #000 30%);box-shadow:var(--shadow-button)}:is(.book-hairline,.book-embed) .hl-day-on{background:var(--accent-grad);color:var(--on-accent);box-shadow:var(--shadow-button)}.book-embed{--accent-text:var(--accent-hover);--accent-soft:color-mix(in srgb, var(--accent) 11%, transparent);--accent-med:color-mix(in srgb, var(--accent) 22%, transparent);--accent-deep:var(--accent);--accent-grad:var(--accent);--on-accent:#fff;--surface:#fff;--well:#fff;--well-in:inset 0 1px 2px #141e320d;--border:#141e321a;--border-strong:#141e3233;--hover:#141e320a;--ring:color-mix(in srgb, var(--accent) 55%, transparent);--ring-lit:color-mix(in srgb, var(--accent) 45%, transparent);--ring-wide:color-mix(in srgb, var(--accent) 14%, transparent);--warn:#b45309;--warn-soft:#f59e0b21;--danger:#b91c1c;--danger-soft:#ef44441a;--radius:14px;--spring:cubic-bezier(.34, 1.45, .64, 1)}.book-embed .mono{font-family:inherit}.book-embed .hl-btn,.book-embed .hl-btn:hover:not(:disabled){background:var(--surface)}
