/* SheetPilot home page. A spreadsheet identity: grid lines, cell references, selection rectangles,
   yellow cell comments, sheet tabs. Uses the shared tokens (brand.css), so it follows light/dark. */

.sp-grid-bg {
	background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
	background-size: 40px 40px;
}
.sp-ref {
	display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px; padding: 4px 12px 4px 4px;
	border: 1px solid var(--accent-line); border-radius: 6px; background: var(--surface);
	font: 600 13px var(--mono); color: var(--ink-2);
}
.sp-ref b { padding: 3px 8px; border-radius: 4px; background: var(--accent); color: var(--accent-ink); font-weight: 700; }
.sp-h2 { margin: 0 0 14px; font-size: clamp(30px, 4.2vw, 48px); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; }
.sp-big { color: var(--ink-2); font-size: 18px; line-height: 1.6; max-width: 62ch; }
.sp-link { color: var(--accent); font-weight: 700; text-decoration: none; }
.sp-link:hover { text-decoration: underline; }
.sp-meta { margin-top: 18px; color: var(--muted); font-size: 14px; }
.sp-section { padding: 96px 0; }
.sp-section--alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.sp-head { margin-bottom: 40px; }

/* ------------------------------------------------------------------ Hero */
.sp-hero { position: relative; overflow: hidden; padding: 64px 0 88px; }
.sp-hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 44px 44px; -webkit-mask-image: radial-gradient(90% 90% at 70% 40%, #000 20%, transparent 78%); mask-image: radial-gradient(90% 90% at 70% 40%, #000 20%, transparent 78%); }
.sp-hero__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr); gap: 56px; align-items: center; }
@media (max-width: 960px) { .sp-hero__grid { grid-template-columns: 1fr; gap: 40px; } .sp-hero { padding-top: 40px; } }
.sp-title { margin: 0; font-size: clamp(40px, 5.6vw, 72px); font-weight: 800; line-height: 1.03; letter-spacing: -0.04em; }
/* "readable": drawn like a selected cell, with the little fill handle. */
.sp-select { position: relative; display: inline-block; padding: 0 0.12em; color: var(--accent); }
.sp-select::before { content: ""; position: absolute; inset: 0.04em -0.02em; border: 3px solid var(--accent); border-radius: 4px; background: var(--accent-soft); clip-path: inset(0 100% 0 0); animation: sp-sel 1.1s 0.6s cubic-bezier(0.6, 0, 0.2, 1) forwards; }
.sp-select::after { content: ""; position: absolute; right: -0.1em; bottom: 0.02em; width: 0.2em; height: 0.2em; background: var(--accent); border: 2px solid var(--surface); opacity: 0; animation: sp-pop 0.3s 1.6s forwards; }
@keyframes sp-sel { to { clip-path: inset(0 0 0 0); } }
@keyframes sp-pop { to { opacity: 1; } }
.sp-lede { max-width: 540px; margin: 24px 0 0; color: var(--ink-2); font-size: 19px; line-height: 1.6; }
.sp-hero .cta-row { justify-content: flex-start; margin-top: 28px; }

/* ------------------------------------------------------------------ The animation: sheet -> dashboard */
.sp-win { border: 1px solid var(--line-2); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow-lg); overflow: hidden; }
.sp-top { display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: #107c41; color: #fff; font: 600 12px var(--font); }
.sp-top i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, 0.55); display: inline-block; }
.sp-top span { margin-left: 6px; opacity: 0.95; }
.sp-fx { display: flex; align-items: center; gap: 10px; padding: 6px 10px; border-bottom: 1px solid var(--line); background: var(--bg-2); font: 12px var(--mono); color: var(--ink-2); min-height: 32px; }
.sp-fx em { font-style: italic; font-weight: 700; color: var(--accent); padding-right: 10px; border-right: 1px solid var(--line-2); }
.sp-fx code { background: none; padding: 0; color: inherit; font: inherit; white-space: nowrap; overflow: hidden; }
.sp-fx code::after { content: ""; display: inline-block; width: 1px; height: 1em; margin-left: 1px; background: var(--ink); vertical-align: -2px; animation: sp-blink 1s steps(1) infinite; opacity: 0; }
[data-phase="select"] .sp-fx code::after, [data-phase="read"] .sp-fx code::after { opacity: 1; }
@keyframes sp-blink { 50% { opacity: 0 !important; } }
.sp-stage { position: relative; height: 318px; overflow: hidden; }
.sp-sheet { position: absolute; inset: 0; transition: opacity 0.7s, transform 0.7s, filter 0.7s; }
.sp-sheet table { width: 100%; border-collapse: collapse; table-layout: fixed; font: 11.5px var(--mono); }
.sp-sheet th, .sp-sheet td { padding: 5px 7px; border: 1px solid var(--line); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: left; transition: background 0.5s; }
.sp-sheet thead th { background: var(--bg-2); color: var(--muted); text-align: center; font-weight: 600; }
.sp-sheet tbody th { width: 28px; background: var(--bg-2); color: var(--muted); text-align: center; font-weight: 600; }
.sp-sheet td.n { text-align: right; }
.sp-sheet tr.h td { font-weight: 700; background: var(--surface); }
/* reading the sheet: columns take the colour of their type */
[data-phase="read"] td[data-t="date"] { background: rgba(43, 125, 233, 0.14); }
[data-phase="read"] td[data-t="cat"] { background: rgba(240, 173, 43, 0.2); }
[data-phase="read"] td[data-t="num"] { background: rgba(16, 124, 65, 0.1); }
[data-phase="read"] td[data-t="calc"] { background: rgba(16, 124, 65, 0.22); }
.sp-sel { position: absolute; left: 28px; top: 28px; width: 0; height: 0; border: 2px solid var(--accent); background: var(--accent-soft); border-radius: 2px; pointer-events: none; opacity: 0; transition: width 1.1s cubic-bezier(0.5, 0, 0.2, 1), height 1.1s cubic-bezier(0.5, 0, 0.2, 1), opacity 0.3s; }
[data-phase="select"] .sp-sel, [data-phase="read"] .sp-sel { opacity: 1; width: calc(100% - 28px); height: calc(100% - 28px); }
[data-phase="build"] .sp-sel, [data-phase="dash"] .sp-sel { opacity: 0; width: calc(100% - 28px); height: calc(100% - 28px); }
.sp-tags span { position: absolute; top: 6px; padding: 2px 8px; border-radius: 999px; background: var(--ink); color: var(--surface); font: 700 10.5px var(--font); opacity: 0; transform: translateY(6px); transition: opacity 0.4s, transform 0.4s; white-space: nowrap; }
[data-phase="read"] .sp-tags span { opacity: 1; transform: none; }
.sp-tags span:nth-child(1) { left: 5%; transition-delay: 0.1s; } .sp-tags span:nth-child(2) { left: 25%; transition-delay: 0.3s; }
.sp-tags span:nth-child(3) { left: 55%; transition-delay: 0.5s; } .sp-tags span:nth-child(4) { right: 3%; transition-delay: 0.8s; background: var(--accent); color: var(--accent-ink); }
[data-phase="build"] .sp-sheet, [data-phase="dash"] .sp-sheet { opacity: 0; transform: scale(0.94); filter: blur(5px); pointer-events: none; }

.sp-dash { position: absolute; inset: 0; padding: 14px; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto 1fr; gap: 10px; opacity: 0; transform: scale(1.04); transition: opacity 0.7s 0.15s, transform 0.7s 0.15s; background: var(--bg); }
[data-phase="dash"] .sp-dash { opacity: 1; transform: none; }
.sp-kpis { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.sp-kpi, .sp-panel { border: 1px solid var(--line-2); border-radius: 6px; background: var(--surface); padding: 8px 12px; }
.sp-kpi small { display: block; color: var(--muted); font: 600 10.5px var(--font); }
.sp-kpi b { font: 800 20px/1.2 var(--font); color: var(--ink); letter-spacing: -0.02em; }
.sp-panel h4 { margin: 0 0 12px; font: 700 12px var(--font); color: var(--ink-2); }
.sp-brow { display: grid; grid-template-columns: 50px 1fr 38px; gap: 6px; align-items: center; margin-bottom: 13px; font: 12px var(--font); color: var(--ink-2); }
.sp-brow i { display: block; height: 14px; border-radius: 2px; background: color-mix(in srgb, var(--accent) 40%, var(--surface)); width: 0; transition: width 1s cubic-bezier(0.2, 0.8, 0.2, 1); }
.sp-brow:first-of-type i { background: var(--accent); }
[data-phase="dash"] .sp-brow i { width: var(--w); }
.sp-brow:nth-of-type(2) i { transition-delay: 0.1s; } .sp-brow:nth-of-type(3) i { transition-delay: 0.2s; } .sp-brow:nth-of-type(4) i { transition-delay: 0.3s; }
.sp-brow b { text-align: right; font-weight: 700; }
.sp-line { width: 100%; height: 118px; display: block; }
.sp-line path.l { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 260; stroke-dashoffset: 260; transition: stroke-dashoffset 1.4s 0.5s ease; }
.sp-line path.a { fill: var(--accent-soft); opacity: 0; transition: opacity 0.8s 1.4s; }
[data-phase="dash"] .sp-line path.l { stroke-dashoffset: 0; } [data-phase="dash"] .sp-line path.a { opacity: 1; }
.sp-note { position: absolute; right: 22px; bottom: 20px; max-width: 250px; padding: 8px 12px; border-radius: 6px; background: var(--cell-yellow); color: var(--ink); box-shadow: 0 6px 18px -8px rgba(0, 0, 0, 0.35); font: 600 11.5px/1.35 var(--font); opacity: 0; transform: translateY(10px) rotate(-1.5deg); transition: opacity 0.5s 2.2s, transform 0.5s 2.2s; }
.sp-note::before { content: ""; position: absolute; top: 0; right: 0; border: 6px solid transparent; border-top-color: #e2a400; border-right-color: #e2a400; }
[data-phase="dash"] .sp-note { opacity: 1; transform: rotate(-1.5deg); }
.sp-steps { display: flex; gap: 6px; margin-top: 14px; }
.sp-steps span { flex: 1; height: 4px; border-radius: 2px; background: var(--line-2); overflow: hidden; position: relative; }
.sp-steps span::after { content: ""; position: absolute; inset: 0; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.4s; }
[data-phase="select"] .sp-steps span:nth-child(-n+1)::after, [data-phase="read"] .sp-steps span:nth-child(-n+2)::after, [data-phase="build"] .sp-steps span:nth-child(-n+3)::after, [data-phase="dash"] .sp-steps span::after { transform: none; }
.sp-captions { display: flex; justify-content: space-between; gap: 8px; margin-top: 8px; color: var(--muted); font-size: 12.5px; font-weight: 600; }
.sp-captions span { flex: 1; text-align: center; transition: color 0.3s; }
[data-phase="sheet"] .sp-captions span:nth-child(1), [data-phase="select"] .sp-captions span:nth-child(1), [data-phase="read"] .sp-captions span:nth-child(2), [data-phase="build"] .sp-captions span:nth-child(3), [data-phase="dash"] .sp-captions span:nth-child(4) { color: var(--accent); }
@media (max-width: 560px) { .sp-stage { height: 280px; } .sp-sheet th:nth-child(n+6), .sp-sheet td:nth-child(n+6) { display: none; } .sp-dash { grid-template-columns: 1fr; } .sp-panel.sp-trend { display: none; } .sp-note { max-width: 190px; } }

/* ------------------------------------------------------------------ Hidden in the sheet: cell comments */
.sp-hidden { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 56px; align-items: center; }
@media (max-width: 900px) { .sp-hidden { grid-template-columns: 1fr; gap: 36px; } }
.sp-cells { position: relative; border: 1px solid var(--line-2); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow); padding: 18px; }
.sp-cells table { width: 100%; border-collapse: collapse; font: 12.5px var(--mono); }
.sp-cells th, .sp-cells td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; }
.sp-cells th { background: var(--bg-2); color: var(--muted); }
.sp-cells td.flag { position: relative; background: var(--accent-soft); outline: 2px solid var(--accent); outline-offset: -2px; }
.sp-cells td.flag::after { content: ""; position: absolute; top: 0; right: 0; border: 5px solid transparent; border-top-color: #e2a400; border-right-color: #e2a400; }
.sp-cmt { position: relative; margin-top: 14px; padding: 12px 14px; border: 1px solid #e2c24a; border-radius: 6px; background: var(--cell-yellow); color: var(--ink); font: 600 13.5px/1.45 var(--font); box-shadow: 0 8px 20px -12px rgba(0, 0, 0, 0.4); }
.sp-cmt small { display: block; margin-bottom: 2px; color: #7a5c00; font: 700 11px var(--mono); }
[data-theme="dark"] .sp-cmt small { color: #f5d66a; }
.sp-cmts { display: grid; gap: 12px; margin-top: 18px; }
.sp-cmts .sp-cmt { margin: 0; transform: rotate(-0.6deg); }
.sp-cmts .sp-cmt:nth-child(2) { transform: rotate(0.5deg); margin-left: 24px; }

/* ------------------------------------------------------------------ How it works: sheet tabs */
.sp-how { border: 1px solid var(--line-2); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.sp-panels { position: relative; }
.sp-pane { display: none; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: 36px; padding: 36px; align-items: center; }
.sp-pane.is-on { display: grid; animation: sp-in 0.5s ease; }
@keyframes sp-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.sp-pane h3 { margin: 0 0 10px; font-size: 26px; letter-spacing: -0.02em; }
.sp-pane p { color: var(--ink-2); font-size: 16.5px; line-height: 1.6; }
.sp-pane figure { margin: 0; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; box-shadow: var(--shadow); background: var(--bg); }
.sp-pane img { display: block; width: 100%; height: auto; }
.sp-tabs { display: flex; gap: 2px; padding: 0 12px; background: var(--bg-2); border-top: 1px solid var(--line-2); overflow-x: auto; }
.sp-tab { flex: none; margin: -1px 0 0; padding: 10px 20px; border: 1px solid transparent; border-top: 0; border-radius: 0 0 8px 8px; background: none; color: var(--ink-2); font: 600 14px var(--font); cursor: pointer; }
.sp-tab:hover { background: var(--surface); }
.sp-tab[aria-selected="true"] { background: var(--surface); border-color: var(--line-2); box-shadow: inset 0 -3px 0 var(--accent); color: var(--accent); }
@media (max-width: 820px) { .sp-pane { grid-template-columns: 1fr; padding: 22px; gap: 22px; } }

/* ------------------------------------------------------------------ Features as a table */
.sp-table { border: 1px solid var(--line-2); border-radius: 10px; overflow: hidden; background: var(--surface); box-shadow: var(--shadow); }
.sp-tr { display: grid; grid-template-columns: 44px 210px minmax(0, 1fr) minmax(0, 0.8fr); border-bottom: 1px solid var(--line); }
.sp-tr:last-child { border-bottom: 0; }
.sp-tr > div { padding: 16px 18px; border-right: 1px solid var(--line); }
.sp-tr > div:last-child { border-right: 0; }
.sp-tr--head { background: var(--bg-2); color: var(--muted); font: 700 12px var(--mono); }
.sp-tr--head > div { padding: 8px 18px; }
.sp-tr .no { background: var(--bg-2); color: var(--muted); font: 600 12px var(--mono); text-align: center; padding-inline: 0; }
.sp-tr h3 { margin: 0; font-size: 16px; }
.sp-tr p { margin: 0; color: var(--ink-2); font-size: 15px; line-height: 1.55; }
.sp-tr code { display: block; padding: 6px 10px; border-radius: 4px; background: var(--code); color: var(--accent); font: 600 12.5px/1.5 var(--mono); white-space: normal; }
.sp-tr:hover:not(.sp-tr--head) { background: var(--accent-soft); }
@media (max-width: 860px) { .sp-tr { grid-template-columns: 34px 1fr; } .sp-tr > div:nth-child(3), .sp-tr > div:nth-child(4) { grid-column: 2; border-right: 0; padding-top: 0; } .sp-tr--head { display: none; } }

/* ------------------------------------------------------------------ Templates strip */
.sp-strip { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.sp-strip__track { display: flex; gap: 22px; width: max-content; animation: sp-scroll 70s linear infinite; }
.sp-strip:hover .sp-strip__track { animation-play-state: paused; }
.sp-strip figure { margin: 0; flex: none; width: 460px; }
.sp-strip img { display: block; width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line-2); box-shadow: var(--shadow); }
.sp-strip figcaption { margin-top: 8px; color: var(--ink-2); font-size: 14px; font-weight: 700; }
.sp-strip figcaption small { color: var(--muted); font-weight: 500; }
@keyframes sp-scroll { to { transform: translateX(-50%); } }
.sp-two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 48px; align-items: center; margin-top: 56px; }
@media (max-width: 900px) { .sp-two { grid-template-columns: 1fr; } }
.sp-two figure { margin: 0; border: 1px solid var(--line-2); border-radius: 10px; overflow: hidden; box-shadow: var(--shadow-lg); }
.sp-two img { display: block; width: 100%; height: auto; }
.sp-ticks { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.sp-ticks li { position: relative; padding-left: 30px; color: var(--ink-2); line-height: 1.5; }
.sp-ticks li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 4px; background: var(--accent); color: var(--accent-ink); font: 700 13px/20px var(--font); text-align: center; }

/* ------------------------------------------------------------------ Excel recommendation */
.sp-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 800px) { .sp-compare { grid-template-columns: 1fr; } }
.sp-opt { position: relative; padding: 26px; border: 1px solid var(--line-2); border-radius: 10px; background: var(--surface); }
.sp-opt--best { border: 2px solid var(--accent); box-shadow: var(--shadow-lg); }
.sp-opt h3 { margin: 0 0 4px; font-size: 22px; }
.sp-opt .tag { position: absolute; top: -13px; right: 22px; padding: 3px 12px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font: 700 12px var(--font); }
.sp-opt p { color: var(--muted); margin: 0 0 14px; }
.sp-opt ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.sp-opt li { position: relative; padding-left: 26px; color: var(--ink-2); }
.sp-opt li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.sp-opt--csv li::before { content: "–"; color: var(--muted); }
.sp-opt code { padding: 2px 6px; border-radius: 4px; background: var(--code); color: var(--accent); font: 600 12.5px var(--mono); }

/* ------------------------------------------------------------------ Privacy cells */
.sp-priv { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-2); border-radius: 10px; overflow: hidden; background: var(--surface); }
@media (max-width: 860px) { .sp-priv { grid-template-columns: 1fr 1fr; } } @media (max-width: 540px) { .sp-priv { grid-template-columns: 1fr; } }
.sp-priv > div { padding: 24px; border: 0 solid var(--line); border-width: 0 1px 1px 0; margin: 0 -1px -1px 0; }
.sp-priv .r { display: block; margin-bottom: 10px; color: var(--accent); font: 700 12px var(--mono); }
.sp-priv h3 { margin: 0 0 6px; font-size: 18px; }
.sp-priv p { margin: 0; color: var(--ink-2); font-size: 15px; line-height: 1.55; }

/* ------------------------------------------------------------------ Story + CTA */
.sp-story { padding: 88px 0; }
.sp-story__inner { max-width: 760px; }
.sp-cta { position: relative; overflow: hidden; padding: 104px 0; background: var(--hero); color: #fff; text-align: center; }
.sp-cta::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, 0.09) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.09) 1px, transparent 1px); background-size: 44px 44px; -webkit-mask-image: radial-gradient(70% 90% at 50% 50%, #000, transparent); mask-image: radial-gradient(70% 90% at 50% 50%, #000, transparent); }
.sp-cta .wrap { position: relative; }
.sp-cta .sp-h2 { color: #fff; }
.sp-cta .sp-big { margin-inline: auto; color: rgba(255, 255, 255, 0.88); }
.sp-cta .cta-row { justify-content: center; margin-top: 28px; }
.sp-cta .sp-meta { color: rgba(255, 255, 255, 0.75); }

@media (prefers-reduced-motion: reduce) { .sp-strip__track { animation: none; } .sp-select::before { animation: none; clip-path: none; } .sp-select::after { animation: none; opacity: 1; } }