refactor(web): centralize OKLCH palette

1 files changed, 63 insertions, 24 deletions

diff --git a/web/static/style.css b/web/static/style.css
index 7bb63aa..b24fd21 100644
--- a/web/static/style.css
+++ b/web/static/style.css
@@ -1,47 +1,86 @@
-:root { color-scheme: light; font-family: system-ui, sans-serif; background: #f5f3ee; color: #1d2a22; }
+:root {
+  color-scheme: light;
+  font-family: system-ui, sans-serif;
+
+  --palette-forest: oklch(27% 0.065 155);
+  --palette-leaf: oklch(51% 0.14 154);
+  --palette-coral: oklch(65% 0.17 48);
+  --palette-paper: oklch(96% 0.015 90);
+  --palette-ink: oklch(25% 0.04 155);
+  --palette-white: oklch(100% 0 0);
+
+  --color-background: var(--palette-paper);
+  --color-foreground: var(--palette-ink);
+  --color-forest: var(--palette-forest);
+  --color-leaf: var(--palette-leaf);
+  --color-accent: var(--palette-coral);
+  --color-surface: var(--palette-white);
+  --color-on-dark: var(--palette-white);
+  --color-muted: oklch(from var(--palette-ink) calc(l + 0.2) calc(c * 0.35) h);
+  --color-subtle: oklch(from var(--palette-ink) calc(l + 0.25) calc(c * 0.2) h);
+  --color-border: oklch(from var(--palette-forest) calc(l + 0.6) calc(c * 0.12) h);
+  --color-border-subtle: oklch(from var(--palette-forest) calc(l + 0.65) calc(c * 0.12) h);
+  --color-input-border: oklch(from var(--palette-forest) calc(l + 0.55) calc(c * 0.16) h);
+  --color-secondary-surface: oklch(from var(--palette-leaf) calc(l + 0.43) calc(c * 0.16) h);
+  --color-notice-surface: oklch(from var(--palette-leaf) calc(l + 0.39) calc(c * 0.2) h);
+  --color-notice-text: oklch(from var(--palette-forest) calc(l + 0.18) calc(c * 0.8) h);
+  --color-error-surface: oklch(from var(--palette-coral) calc(l + 0.31) calc(c * 0.25) h);
+  --color-error-text: oklch(from var(--palette-coral) calc(l - 0.28) calc(c * 0.8) h);
+  --color-panel-shadow: oklch(from var(--palette-forest) l c h / 5%);
+  --color-focus: oklch(from var(--palette-leaf) l c h / 40%);
+  --color-plot-surface: oklch(from var(--palette-paper) calc(l + 0.03) calc(c * 0.35) h);
+  --color-plot-surface-overlay: oklch(from var(--color-plot-surface) l c h / 90%);
+  --color-plot-grid: var(--color-border-subtle);
+  --color-accent-fill: oklch(from var(--palette-coral) l c h / 12%);
+  --color-climb-label: oklch(from var(--palette-coral) calc(l - 0.21) calc(c * 0.72) h);
+  --color-crossing: oklch(from var(--palette-leaf) l c h / 60%);
+  --color-crossing-label: var(--color-notice-text);
+  --color-hover-line: oklch(from var(--palette-forest) l c h / 60%);
+}
+
 * { box-sizing: border-box; }
-body { margin: 0; }
-a { color: #18794e; }
-.site-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem max(1rem, calc((100vw - 70rem) / 2)); background: #173b2a; color: #fff; }
-.site-header a { color: #fff; text-decoration: none; }
+body { margin: 0; background: var(--color-background); color: var(--color-foreground); }
+a { color: var(--color-leaf); }
+.site-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem max(1rem, calc((100vw - 70rem) / 2)); background: var(--color-forest); color: var(--color-on-dark); }
+.site-header a { color: var(--color-on-dark); text-decoration: none; }
 .brand { font-weight: 750; letter-spacing: .02em; }
 .nav { display: flex; gap: 1rem; font-size: .95rem; }
 .container { width: min(70rem, calc(100% - 2rem)); margin: 0 auto; padding: 2.5rem 0 4rem; }
-.eyebrow { margin: 0 0 .4rem; color: #18794e; font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
+.eyebrow { margin: 0 0 .4rem; color: var(--color-leaf); font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
 h1 { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1; }
-.lead { max-width: 42rem; color: #5b675f; }
-.panel { margin-top: 2rem; padding: 1.25rem; border: 1px solid #d9ded8; border-radius: 1rem; background: #fff; box-shadow: 0 1rem 2.5rem #173b2a0d; }
+.lead { max-width: 42rem; color: var(--color-muted); }
+.panel { margin-top: 2rem; padding: 1.25rem; border: 1px solid var(--color-border); border-radius: 1rem; background: var(--color-surface); box-shadow: 0 1rem 2.5rem var(--color-panel-shadow); }
 .toolbar { display: flex; align-items: end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
-.button { display: inline-block; border: 0; border-radius: .65rem; padding: .7rem 1rem; background: #d96932; color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
-.button.secondary { background: #e8eee9; color: #173b2a; }
-label { display: grid; gap: .35rem; color: #5b675f; font-size: .85rem; font-weight: 650; }
-input { border: 1px solid #c8d0c9; border-radius: .55rem; padding: .65rem .7rem; font: inherit; color: inherit; background: #fff; }
+.button { display: inline-block; border: 0; border-radius: .65rem; padding: .7rem 1rem; background: var(--color-accent); color: var(--color-on-dark); font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
+.button.secondary { background: var(--color-secondary-surface); color: var(--color-forest); }
+label { display: grid; gap: .35rem; color: var(--color-muted); font-size: .85rem; font-weight: 650; }
+input { border: 1px solid var(--color-input-border); border-radius: .55rem; padding: .65rem .7rem; font: inherit; color: inherit; background: var(--color-surface); }
 .form-row { display: flex; align-items: end; gap: .75rem; flex-wrap: wrap; }
 .sync-progress { display: grid; gap: .7rem; margin-top: 1.25rem; }
 .progress-heading { display: flex; justify-content: space-between; gap: 1rem; }
-progress { width: 100%; height: .8rem; accent-color: #d96932; }
-.notice { margin: 1rem 0 0; border-radius: .6rem; padding: .75rem 1rem; background: #e5f3e9; color: #17633f; }
-.error { margin: 1rem 0 0; border-radius: .6rem; padding: .75rem 1rem; background: #fbe8df; color: #8c3517; }
+progress { width: 100%; height: .8rem; accent-color: var(--color-accent); }
+.notice { margin: 1rem 0 0; border-radius: .6rem; padding: .75rem 1rem; background: var(--color-notice-surface); color: var(--color-notice-text); }
+.error { margin: 1rem 0 0; border-radius: .6rem; padding: .75rem 1rem; background: var(--color-error-surface); color: var(--color-error-text); }
 table { width: 100%; border-collapse: collapse; }
-th, td { padding: .85rem .5rem; border-bottom: 1px solid #e5e9e5; text-align: left; }
-th { color: #68746c; font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
+th, td { padding: .85rem .5rem; border-bottom: 1px solid var(--color-border-subtle); text-align: left; }
+th { color: var(--color-subtle); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
 .sort-link { color: inherit; text-decoration: none; }
-.sort-link:hover, .sort-link:focus-visible, th.active .sort-link { color: #d96932; }
+.sort-link:hover, .sort-link:focus-visible, th.active .sort-link { color: var(--color-accent); }
 .sort-indicator { display: inline-block; margin-left: .2rem; }
 .numeric { text-align: right; white-space: nowrap; }
-.empty { padding: 2.5rem 1rem; text-align: center; color: #68746c; }
+.empty { padding: 2.5rem 1rem; text-align: center; color: var(--color-subtle); }
 .map-panel { padding: 0; overflow: hidden; }
 .ride-map { min-height: 24rem; height: min(65vh, 40rem); }
 .profile-panel { padding-bottom: 1rem; }
 .profile-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
 .profile-heading h2 { margin: 0; font-size: 1.2rem; }
-.profile-heading p { margin: 0; color: #68746c; font-size: .9rem; }
+.profile-heading p { margin: 0; color: var(--color-subtle); font-size: .9rem; }
 .profile-chart { margin-top: 1rem; }
-.profile-chart canvas { display: block; width: 100%; height: 22rem; border-radius: .65rem; background: #fbfcfa; outline: none; }
-.profile-chart canvas:focus-visible { box-shadow: 0 0 0 .2rem #18794e66; }
-.profile-hover { display: block; min-height: 1.4rem; margin: .7rem 0 0; color: #5b675f; font-size: .9rem; }
+.profile-chart canvas { display: block; width: 100%; height: 22rem; border-radius: .65rem; background: var(--color-plot-surface); outline: none; }
+.profile-chart canvas:focus-visible { box-shadow: 0 0 0 .2rem var(--color-focus); }
+.profile-hover { display: block; min-height: 1.4rem; margin: .7rem 0 0; color: var(--color-muted); font-size: .9rem; }
 dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 0; }
-dt { color: #68746c; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
+dt { color: var(--color-subtle); font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
 dd { margin: .25rem 0 0; font-size: 1.2rem; font-weight: 700; }
 @media (max-width: 700px) { .container { width: min(100% - 1rem, 70rem); padding-top: 1.5rem; } .site-header { padding-inline: 1rem; } th:nth-child(n+4), td:nth-child(n+4) { display: none; } .panel { padding: .8rem; } }
 @media (max-width: 500px) { dl { grid-template-columns: repeat(2, 1fr); } }