* { box-sizing: border-box; }
html { color: var(--color-text); background: var(--color-background); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body { margin: 0; min-width: 280px; font-size: var(--ui-font-body); line-height: 1.35; }
a { color: var(--color-primary); }
button, input, select, textarea { font-family: inherit; }
button { font-size: var(--ui-font-button); }
input, textarea { font-size: var(--ui-font-input); }
select { font-size: var(--ui-font-select); }
small { font-size: var(--ui-font-help); }
h1 { margin: 0 0 var(--ui-block-gap); font-size: var(--ui-font-title); line-height: 1.2; }
h2, h3 { font-size: var(--ui-font-subtitle); }
input:not([type="file"]):not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="range"]), select, textarea { min-width: 0; min-height: var(--ui-control-height); padding: var(--space-3) var(--space-8); border: 1px solid var(--color-border); border-radius: var(--radius-6); color: var(--color-text); background: var(--color-surface); }
.app-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-sm); min-height: 58px; padding: var(--space-8) max(var(--space-16), env(safe-area-inset-left)); background: var(--color-surface); border-bottom: 1px solid var(--color-border); backdrop-filter: blur(14px); }
.brand { font-size: var(--ui-font-subtitle); font-weight: 850; text-decoration: none; letter-spacing: -.04em; }
.app-nav { display: flex; align-items: center; gap: var(--space-14); overflow-x: auto; font-size: var(--ui-font-body); white-space: nowrap; }
.app-nav a, .link-button { color: var(--color-text); text-decoration: none; background: none; border: 0; padding: var(--space-10) 0; cursor: pointer; }
.app-nav form { margin: 0; }
.page-shell { width: min(100%, 1280px); margin: 0 auto; padding: var(--ui-block-gap) var(--ui-page-padding) calc(var(--space-28) + env(safe-area-inset-bottom)); }
.page-heading { margin-bottom: var(--spacing-md); }
.page-heading.compact { margin-bottom: var(--spacing-md); }
.page-heading h1 { margin: var(--space-2) 0; font-size: var(--ui-font-title); line-height: 1; letter-spacing: -.045em; }
.eyebrow, .object-name { margin: 0 0 var(--space-5); color: var(--color-text-muted); font-size: var(--ui-font-help); font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.muted { color: var(--color-text-muted); }
.task-list { display: grid; gap: var(--space-12); }
.task-card { padding: var(--ui-panel-padding); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: 0 6px 18px rgba(23, 33, 30, .06); }
.task-card-overdue { border-color: #e9bc8d; }
.task-card h2 { margin: var(--space-2) 0 var(--space-8); font-size: var(--ui-font-subtitle); }
.task-card-top, .task-card-bottom, .section-heading { display: flex; align-items: center; justify-content: space-between; gap: var(--space-12); }
.task-card-top time { color: var(--color-text-muted); font-size: var(--ui-font-body); }
.task-card-bottom { margin-top: var(--space-14); }
.instruction { margin: 0; color: var(--color-text-muted); }
.badge { display: inline-flex; align-items: center; min-height: 28px; padding: var(--space-4) var(--space-9); border-radius: 999px; background: var(--color-background); color: var(--color-text-muted); font-size: var(--ui-font-help); font-weight: 750; }
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.button { display: inline-flex; min-height: var(--ui-control-height); align-items: center; justify-content: center; gap: var(--ui-field-gap); padding: var(--space-3) var(--space-8); border: 1px solid transparent; border-radius: var(--radius-6); font-size: var(--ui-font-button); line-height: 1.5; font-weight: 600; text-decoration: none; cursor: pointer; }
.button:disabled { cursor: wait; opacity: .5; }
.button-primary { color: var(--color-on-primary); background: var(--color-primary); }
.button-secondary { color: var(--color-primary); background: var(--color-primary-soft); }
.button-wide { width: 100%; }
.auth-card { width: min(100%, 420px); margin: 5vh auto; padding: var(--ui-panel-padding); background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.stack-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); gap: var(--ui-row-gap) var(--ui-column-gap); }
.stack-form label { display: flex; flex-wrap: wrap; align-items: center; gap: var(--ui-field-gap); min-width: 0; font-weight: 600; }
.stack-form label > input { flex: 1 1 138px; min-width: min(100%, 138px); width: 0; }
.stack-form > button, .stack-form > p, .stack-form > .error-box { grid-column: 1 / -1; }
.stack-form input, .date-nav input { width: 100%; min-height: var(--tap-size); padding: var(--space-3) var(--space-8); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); }
.error-box { margin: var(--space-10) 0; padding: var(--space-12); border-radius: var(--radius-sm); background: var(--color-danger-soft); color: var(--color-danger); }
.hidden { display: none !important; }
.store-list { display: grid; gap: var(--space-10); }
.store-choice { display: flex; align-items: center; justify-content: space-between; min-height: 64px; padding: var(--space-16); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); font-weight: 750; cursor: pointer; }
.empty-state { padding: var(--space-28) var(--space-20); text-align: center; color: var(--color-text-muted); background: var(--color-surface); border: 1px dashed var(--color-border); border-radius: var(--radius-lg); }
.empty-state strong { color: var(--color-text); font-size: var(--ui-font-help); }
.back-link { display: inline-block; min-height: var(--ui-control-height); margin-bottom: var(--space-10); text-decoration: none; }
.upload-panel { display: grid; gap: var(--spacing-md); }
.file-picker input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.selected-files { display: grid; gap: var(--space-10); }
.selected-file { display: grid; grid-template-columns: 68px 1fr auto; align-items: center; gap: var(--space-10); padding: var(--space-3) var(--space-8); background: var(--color-surface); border-radius: var(--radius-md); }
.selected-file img { width: 68px; height: 68px; object-fit: contain; border-radius: var(--radius-sm); }
.selected-file-actions { display: flex; gap: var(--space-4); }
.mini-button { min-width: 40px; min-height: 40px; border: 0; border-radius: var(--radius-10); background: var(--color-primary-soft); cursor: pointer; }
.upload-progress { height: 8px; overflow: hidden; background: var(--color-border); border-radius: 999px; }
.upload-progress span { display: block; width: 0; height: 100%; background: var(--color-success); transition: width .2s; }
.coverage { margin: var(--space-8) 0 0; color: var(--color-text-muted); }
.day-heading { display: flex; align-items: end; justify-content: space-between; gap: var(--space-12); margin-bottom: var(--space-12); }
.day-heading h1 { margin: 0; font-size: var(--ui-font-title); line-height: 1; }
.day-heading .coverage { flex: none; margin: 0; font-size: var(--ui-font-body); }
.date-nav { display: grid; grid-template-columns: var(--tap-size) 1fr var(--tap-size); gap: var(--space-8); margin-bottom: var(--space-12); }
.icon-button { display: grid; place-items: center; min-height: var(--tap-size); background: var(--color-surface); border-radius: var(--radius-sm); text-decoration: none; }
.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-bottom: var(--space-18); padding: var(--space-4); background: #e4e6e3; border-radius: var(--radius-md); }
.segmented a { padding: var(--space-10); text-align: center; text-decoration: none; border-radius: var(--radius-12); }
.segmented a.active { background: var(--color-surface); box-shadow: 0 2px 8px rgba(0,0,0,.06); font-weight: 750; }
.photo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-8); }
.photo-card { position: relative; min-width: 0; aspect-ratio: auto; overflow: hidden; padding: 0; border: 0; border-radius: var(--radius-md); background: #dfe3e0; cursor: pointer; text-align: left; }
.photo-card img { display: block; width: 100%; height: auto; object-fit: contain; }
.photo-meta { position: absolute; inset: auto 0 0; display: grid; padding: var(--space-28) var(--space-10) var(--space-9); color: white; background: linear-gradient(transparent, rgba(0,0,0,.75)); }
.photo-meta small { opacity: .88; }
.photo-group, .compare-block { margin: var(--space-24) 0; }
.section-heading { margin-bottom: var(--space-10); }
.section-heading h2, .section-heading p { margin: 0; }
.section-heading h2 a { text-decoration: none; }
.task-card.is-clickable { cursor: pointer; }
.task-card a { position: relative; z-index: 1; }
.task-card h2 a, .object-name a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.photo-count-link, .compare-link { color: var(--color-primary); border: 0; background: none; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.history-day { margin: var(--space-22) 0; }
.history-day > h2 { margin: 0 0 var(--space-10); font-size: var(--ui-font-subtitle); }
.submission-card { display: grid; gap: var(--space-12); margin-bottom: var(--space-12); padding: var(--ui-panel-padding); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.submission-heading, .compare-heading { display: flex; align-items: start; justify-content: space-between; gap: var(--space-10); }
.submission-heading div, .compare-heading div { display: grid; gap: var(--space-3); }
.submission-heading small, .compare-heading small { color: var(--color-text-muted); }
.submission-thumbnails { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(118px, 38vw); gap: var(--space-8); overflow-x: auto; }
.submission-thumbnails .photo-card { scroll-snap-align: start; }
.compare-link { width: fit-content; min-height: 40px; display: inline-flex; align-items: center; }
.comparison-picker { display: grid; gap: var(--space-10); padding: var(--space-12); background: var(--color-surface); border-radius: var(--radius-md); }
.comparison-picker label { display: grid; gap: var(--space-5); color: var(--color-text-muted); font-size: var(--ui-font-body); font-weight: 700; }
.comparison-picker select { width: 100%; min-height: var(--tap-size); padding: var(--space-3) var(--space-8); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); }
.compare-page { max-width: 720px; margin: 0 auto; }
.compact-comparison-picker { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.compact-comparison-picker label { grid-template-columns: auto minmax(0, 1fr); align-items: center; min-width: 0; }
.compact-comparison-picker select { min-width: 0; font-size: var(--ui-font-select); }
.compact-comparison-picker .button { grid-column: 1 / -1; }
.comparison-choice-number { color: var(--color-text); font-size: var(--ui-font-body); }
.compare-caption { display: flex; justify-content: space-between; gap: var(--space-8); margin-bottom: var(--space-5); color: var(--color-text-muted); font-size: var(--ui-font-help); white-space: nowrap; }
.compare-stage { min-width: 0; }
.compare-slides { min-width: 0; }
.compare-photo { display: block; width: 100%; padding: 0; overflow: hidden; border: 0; border-radius: var(--radius-md); background: #dfe3e0; cursor: pointer; }
.compare-photo img { display: block; width: 100%; height: min(36vh, 440px); object-fit: contain; }
.compare-strip { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(175px, 72vw); gap: var(--space-10); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: var(--space-8); }
.compare-strip .photo-card { scroll-snap-align: start; }
@media (min-width: 768px) { :root { --ui-font-title: var(--ui-font-title-desktop); --ui-page-padding: 12px; } }
@media (max-width: 420px) { .day-heading { align-items: start; } .day-heading .eyebrow { max-width: 52vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } }
@media (min-width: 680px) { .photo-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-12); } .task-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } .comparison-picker { grid-template-columns: 1fr 1fr auto; align-items: end; } }