:root{color-scheme:light dark;--ink:#13213b;--muted:#536077;--paper:#f3f6fb;--surface:#fff;--line:#d7e0ec;--accent:#0b67d1;--accent-soft:#e4f0ff;--photo:#0b67d1;--video:#7c3aed;--margin:#f59e0b;--unused:#dbe4ef;--shadow:0 16px 40px rgba(21,42,77,.09)}
.segmented-control input{width:1px;min-height:1px;height:1px;margin:0;padding:0}
.segmented-control input:focus-visible+span{outline:3px solid rgba(11,103,209,.35);outline-offset:2px}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;line-height:1.65}.page-shell{width:min(1120px,calc(100% - 32px));margin:auto}.skip-link{position:fixed;z-index:10;left:12px;top:-60px;background:#fff;color:#000;padding:9px 14px;border-radius:6px}.skip-link:focus{top:12px}.site-header{padding:62px 0 44px;background:radial-gradient(circle at 82% 0,#2b7ddd 0,transparent 33%),linear-gradient(135deg,#071323,#172d50);color:#fff}.eyebrow,.section-kicker{font-size:.75rem;letter-spacing:.12em;font-weight:800;text-transform:uppercase;margin:0 0 6px;color:var(--accent)}.site-header .eyebrow{color:#9bc7ff}.site-header h1{font-size:clamp(2rem,7vw,4rem);line-height:1.16;letter-spacing:-.04em;margin:0}.lede{max-width:600px;margin:17px 0 0;color:#d5e3f7;font-size:1.05rem}.calculator-card,.results,.info-section,.privacy-note{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px}.calculator-card{margin-top:-20px;padding:clamp(20px,5vw,38px)}.section-heading h2,.result-header h2{font-size:1.55rem;letter-spacing:-.03em;margin:0}.mode-selector,.input-group{padding:0;border:0;margin:26px 0}.mode-selector legend,.input-group legend{font-weight:800;margin-bottom:9px}.segmented-control{display:grid;grid-template-columns:repeat(3,1fr);padding:4px;background:#e8edf5;border-radius:11px;gap:3px}.segmented-control label{position:relative;cursor:pointer;text-align:center}.segmented-control input{position:absolute;opacity:0}.segmented-control span{display:block;padding:9px 4px;border-radius:8px;font-weight:700;color:var(--muted)}.segmented-control input:checked+span{background:var(--surface);color:var(--accent);box-shadow:0 1px 4px rgba(0,0,0,.12)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field{min-width:0}.field-wide{grid-column:1/-1}.field 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9px;border-radius:7px;cursor:pointer;font-weight:700;font-size:.82rem}.preset-row button:hover,.share-button:hover{border-color:var(--accent);color:var(--accent)}.compact-group{display:flex;align-items:center;gap:20px;border-top:1px solid var(--line);padding-top:22px;margin-bottom:0}.compact-group legend{float:left;width:50%;margin:8px 0}.margin-row{display:flex;gap:9px;margin-left:auto;min-width:160px}.margin-row select{width:auto}.margin-row .unit-input{width:100px}.validation-message{color:#b42318;margin:0;font-weight:700}.results{margin:24px 0;padding:clamp(20px,5vw,38px)}.result-header{display:flex;gap:16px;justify-content:space-between;align-items:center}.share-button{padding:9px 13px;white-space:nowrap}.share-message{color:#087443;font-size:.9rem;margin:10px 0}.recommendation-card{margin:22px 0;background:linear-gradient(135deg,#e8f3ff,#f6faff);padding:24px;border-left:5px solid var(--accent);border-radius:13px}.recommendation-card p{margin:0}.recommendation-value{display:block;font-size:clamp(2.4rem,10vw,4.25rem);line-height:1.05;font-weight:850;letter-spacing:-.06em;color:#0754ae;margin:4px 0 10px}.recommendation-detail{font-weight:700}.recommendation-note{color:var(--muted);font-size:.9rem;margin-top:6px!important}.summary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.summary-card{padding:15px;border:1px solid var(--line);border-radius:11px}.summary-card span{display:block;font-size:.78rem;color:var(--muted);font-weight:700}.summary-card strong{display:block;font-size:1.3rem;letter-spacing:-.03em;margin-top:2px}.storage-visual{margin:27px 0;border-top:1px solid var(--line);padding-top:22px}.storage-visual-top{display:flex;justify-content:space-between;gap:12px;align-items:baseline}.storage-visual h3,.card-split-card h3{font-size:1.05rem;margin:0}.storage-visual-top span{color:var(--muted);font-size:.85rem}.storage-bar{height:36px;border-radius:9px;overflow:hidden;background:var(--unused);display:flex;margin:10px 0}.storage-part{min-width:0;height:100%;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;color:#fff;overflow:hidden;white-space:nowrap}.storage-part.photo{background:var(--photo)}.storage-part.video{background:var(--video)}.storage-part.margin{background:var(--margin);color:#3b2700}.storage-part.unused{background:var(--unused);color:#44536a}.storage-legend{display:flex;flex-wrap:wrap;gap:6px 15px;font-size:.78rem;color:var(--muted)}.storage-legend span:before{content:"";display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px;background:var(--legend-color)}.card-split-card{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center;border:1px solid var(--line);border-radius:13px;padding:18px}.card-split-card .section-kicker{margin:0 0 2px}.card-split-card select{width:110px}.split-result{grid-column:1/-1;padding-top:13px;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.split-item span{display:block;color:var(--muted);font-size:.78rem}.split-item strong{font-size:1.1rem}.comparison-section{margin-top:34px}.table-scroll{overflow-x:auto;margin-top:12px;border:1px solid var(--line);border-radius:11px}table{border-collapse:collapse;width:100%;min-width:630px;font-size:.9rem}th,td{padding:12px 14px;text-align:right;border-bottom:1px solid var(--line)}th:first-child,td:first-child{text-align:left}th{background:#f3f7fc;color:var(--muted);font-size:.78rem;letter-spacing:.03em}tbody tr:last-child td{border-bottom:0}tbody tr.recommended-row{background:var(--accent-soft);font-weight:800}.info-section{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:clamp(20px,5vw,35px);margin:24px 0}.info-section h2{font-size:1.25rem;line-height:1.35;margin:0 0 12px}.info-section p,.info-section ol{font-size:.92rem;margin:0;color:var(--muted)}.info-section ol{padding-left:1.3em}.info-section li+li{margin-top:7px}.privacy-note{padding:13px 17px;font-size:.86rem;color:var(--muted);margin-bottom:28px}.site-footer{background:#101b2d;color:#c5d1e2;padding:26px 0;font-size:.78rem}.site-footer p{margin:0}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
@media (max-width:640px){.site-header{padding-top:40px}.form-grid,.info-section{grid-template-columns:1fr}.compact-group{display:block}.compact-group legend{float:none;width:auto}.margin-row{margin:0;min-width:0}.summary-grid{grid-template-columns:1fr 1fr}.card-split-card{grid-template-columns:1fr}.card-split-card select{width:100%}.split-result{grid-template-columns:1fr 1fr}.result-header{align-items:flex-start}.storage-visual-top{display:block}.storage-visual-top span{display:block;margin-top:3px}.storage-part{font-size:.62rem}.mode-selector{margin-bottom:21px}}
@media (prefers-color-scheme:dark){:root{--ink:#e7eef9;--muted:#aab8ca;--paper:#09111e;--surface:#101c2e;--line:#263955;--accent:#78b6ff;--accent-soft:#122f52;--unused:#32445d;--shadow:0 16px 40px rgba(0,0,0,.26)}.site-header{background:radial-gradient(circle at 82% 0,#1c568e 0,transparent 33%),linear-gradient(135deg,#040911,#0d1d34)}.segmented-control{background:#172840}.segmented-control input:checked+span{background:#213652}.recommendation-card{background:linear-gradient(135deg,#102e51,#11233b)}.recommendation-value{color:#8ec5ff}.preset-row button,.share-button{background:#14243a}.storage-part.unused{color:#d7e2f0}th{background:#14243a}.recommended-row{background:#123357!important}.site-footer{background:#060b13}}