:root {
    color-scheme: light;
    --green-950: #103c30;
    --green-800: #176b4d;
    --green-700: #1d7b59;
    --green-100: #dff3e9;
    --green-50: #f2faf6;
    --ink: #1c2924;
    --muted: #63716b;
    --line: #d9e2dd;
    --surface: #ffffff;
    --canvas: #f6f8f5;
    --warm: #fff8e7;
    --warm-line: #ead39a;
    --danger: #a52a2a;
    --danger-bg: #fff1f0;
    --danger-line: #efc0bd;
    --info: #175a78;
    --info-bg: #e9f5fb;
    --shadow: 0 10px 30px rgba(22, 63, 47, 0.08);
    --radius-lg: 1rem;
    --radius-md: 0.75rem;
    --radius-sm: 0.5rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--canvas);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.55;
    text-rendering: optimizeLegibility;
}

button,
input,
select,
textarea {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: var(--green-800);
}

h1,
h2,
h3,
p,
dl,
dd {
    margin-top: 0;
}

h1,
h2,
h3 {
    color: var(--green-950);
    line-height: 1.2;
}

h1 {
    margin-bottom: 0.65rem;
    font-size: clamp(1.85rem, 6vw, 2.75rem);
    letter-spacing: -0.035em;
}

h2 {
    margin-bottom: 0.5rem;
    font-size: clamp(1.25rem, 4vw, 1.55rem);
}

h3 {
    margin-bottom: 0.35rem;
    font-size: 1.08rem;
}

.shell,
.page-shell {
    width: min(100% - 2rem, 72rem);
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-sm);
    background: var(--green-950);
    color: #fff;
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.96);
}

.site-header__inner {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    padding-block: 0.85rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    color: var(--ink);
    text-decoration: none;
}

.brand__logo {
    display: block;
    flex: 0 0 3rem;
    width: 3rem;
    height: 3rem;
    margin-right: 0.7rem;
    border-radius: 50%;
    background: #fff;
    object-fit: cover;
}

.brand__copy {
    display: grid;
    min-width: 0;
    line-height: 1.2;
}

.brand__copy strong {
    font-size: 1rem;
}

.brand__copy small {
    margin-top: 0.18rem;
    color: var(--muted);
    font-size: 0.74rem;
}

.site-nav {
    display: flex;
    width: 100%;
    gap: 0.25rem;
    overflow-x: auto;
    padding-bottom: 0.1rem;
}

.site-nav form {
    display: contents;
}

.site-nav__link {
    min-height: 2.65rem;
    padding: 0.65rem 0.78rem;
    border: 0;
    border-radius: var(--radius-sm);
    color: #415049;
    background: transparent;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
}

.site-nav__link:hover,
.site-nav__link.is-active {
    background: var(--green-100);
    color: var(--green-950);
}

.site-nav__button {
    margin-left: auto;
}

.page-shell {
    min-height: calc(100vh - 11rem);
    padding-block: 2rem 3.5rem;
}

.page-shell--narrow {
    max-width: 31rem;
}

.page-shell--medium {
    max-width: 43rem;
}

.page-shell--participant {
    max-width: 47rem;
}

.page-heading {
    margin-bottom: 1.5rem;
}

.page-heading > p:last-child,
.participant-hero > p:last-child {
    max-width: 42rem;
    margin-bottom: 0;
    color: var(--muted);
}

.page-heading--centered {
    text-align: center;
}

.page-heading--with-action {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
}

.eyebrow,
.section-heading__step {
    margin-bottom: 0.4rem;
    color: var(--green-700);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.back-link {
    display: inline-block;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

.auth-panel {
    padding-top: 0.5rem;
}

.alert {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-bottom: 1rem;
    padding: 0.9rem 1rem;
    border: 1px solid;
    border-radius: var(--radius-md);
    font-size: 0.94rem;
}

.alert ul {
    margin: 0.35rem 0 0;
    padding-left: 1.2rem;
}

.alert--success {
    border-color: #a8d9c0;
    background: var(--green-50);
    color: #155b42;
}

.alert--danger {
    border-color: var(--danger-line);
    background: var(--danger-bg);
    color: #812222;
}

.alert--warning {
    border-color: var(--warm-line);
    background: var(--warm);
    color: #6c5011;
}

.form-card,
.filter-card,
.one-time-card,
.participant-card,
.meal-card,
.empty-state {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.form-card,
.filter-card,
.one-time-card {
    padding: 1.15rem;
}

.field + .field,
.form-grid + .field,
.field + .privacy-note,
.privacy-note + .form-actions {
    margin-top: 1rem;
}

.field label {
    display: inline-block;
    margin-bottom: 0.42rem;
    color: var(--ink);
    font-size: 0.91rem;
    font-weight: 750;
}

.label-note,
.required-note {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 500;
}

input,
select,
textarea {
    width: 100%;
    min-height: 3rem;
    padding: 0.72rem 0.78rem;
    border: 1px solid #bdcac3;
    border-radius: var(--radius-sm);
    outline: 0;
    background: #fff;
    color: var(--ink);
}

textarea {
    min-height: 7rem;
    resize: vertical;
}

input[type="file"] {
    height: auto;
    padding: 0.5rem;
    background: var(--green-50);
}

input[type="file"]::file-selector-button {
    margin-right: 0.65rem;
    padding: 0.58rem 0.72rem;
    border: 0;
    border-radius: 0.42rem;
    background: var(--green-800);
    color: #fff;
    font-weight: 750;
    cursor: pointer;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--green-700);
    box-shadow: 0 0 0 3px rgba(29, 123, 89, 0.16);
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
    border-color: var(--danger);
}

input[readonly] {
    background: #f1f4f2;
    color: #34453d;
}

.field-help,
.field-error {
    margin: 0.38rem 0 0;
    font-size: 0.82rem;
}

.field-help {
    color: var(--muted);
}

.field-error {
    color: var(--danger);
    font-weight: 650;
}

.check-field {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-block: 1rem 1.2rem;
    font-size: 0.9rem;
    cursor: pointer;
}

.check-field input {
    width: 1.2rem;
    min-height: 1.2rem;
    accent-color: var(--green-800);
}

.form-grid,
.filter-grid {
    display: grid;
    gap: 1rem;
}

.form-grid .field + .field,
.filter-grid .field + .field {
    margin-top: 0;
}

.form-actions,
.action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.form-actions {
    margin-top: 1.25rem;
    padding-top: 1.15rem;
    border-top: 1px solid var(--line);
}

.button {
    display: inline-flex;
    min-height: 2.85rem;
    align-items: center;
    justify-content: center;
    padding: 0.68rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.91rem;
    font-weight: 750;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.button:hover {
    transform: translateY(-1px);
}

.button:focus-visible,
.site-nav__link:focus-visible,
.image-link:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(29, 123, 89, 0.3);
    outline-offset: 2px;
}

.button--primary {
    background: var(--green-800);
    color: #fff;
}

.button--primary:hover {
    background: var(--green-950);
}

.button--secondary {
    border-color: #bdcac3;
    background: #fff;
    color: var(--green-950);
}

.button--ghost {
    border-color: transparent;
    background: var(--green-50);
    color: var(--green-950);
}

.button--danger-ghost {
    border-color: var(--danger-line);
    background: var(--danger-bg);
    color: var(--danger);
}

.button--small {
    min-height: 2.55rem;
    padding: 0.55rem 0.72rem;
    font-size: 0.84rem;
}

.button--block {
    width: 100%;
}

.button.is-disabled {
    opacity: 0.45;
    pointer-events: none;
}

.privacy-note {
    padding: 0.9rem;
    border-left: 4px solid var(--green-700);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--green-50);
}

.privacy-note p {
    margin: 0.25rem 0 0;
    color: #3f5b50;
    font-size: 0.88rem;
}

.privacy-note--footer {
    margin-top: 1.5rem;
}

.participant-list,
.meal-list {
    display: grid;
    gap: 1rem;
}

.participant-card,
.meal-card {
    padding: 1rem;
}

.participant-card__summary {
    margin-bottom: 1rem;
}

.heading-with-badge,
.meal-card__header,
.section-heading,
.filter-card__heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.8rem;
}

.heading-with-badge {
    flex-wrap: wrap;
}

.heading-with-badge h2,
.meal-card__header h3,
.section-heading h2,
.filter-card__heading h2 {
    margin-bottom: 0;
}

.badge {
    display: inline-flex;
    width: fit-content;
    min-height: 1.8rem;
    align-items: center;
    padding: 0.27rem 0.58rem;
    border-radius: 999px;
    font-size: 0.73rem;
    font-weight: 800;
    line-height: 1.15;
    text-align: center;
}

.badge--success {
    background: var(--green-100);
    color: #12543d;
}

.badge--muted {
    background: #e8ecea;
    color: #53605a;
}

.badge--warning {
    background: #fff0c4;
    color: #76540c;
}

.badge--danger {
    background: var(--danger-bg);
    color: var(--danger);
}

.badge--info {
    background: var(--info-bg);
    color: var(--info);
}

.meta-list {
    display: grid;
    gap: 0.65rem;
    margin: 0.8rem 0 0;
}

.meta-list div {
    display: grid;
    gap: 0.05rem;
}

.meta-list dt {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 700;
}

.meta-list dd {
    margin: 0;
    color: var(--ink);
    font-size: 0.9rem;
}

.action-group {
    padding-top: 1rem;
    border-top: 1px solid var(--line);
}

.action-group form,
.action-group .button {
    width: 100%;
}

.filter-card {
    margin-bottom: 1.75rem;
}

.filter-card__heading {
    margin-bottom: 1rem;
}

.filter-card__heading a {
    font-size: 0.84rem;
    font-weight: 700;
}

.filter-card > .button {
    width: 100%;
    margin-top: 1rem;
}

.section-heading {
    margin: 1.75rem 0 0.85rem;
}

.required-note {
    white-space: nowrap;
}

.participant-hero {
    position: relative;
    margin: -2rem -1rem 1.2rem;
    padding: 2rem 1rem 1.5rem;
    overflow: hidden;
    background: linear-gradient(145deg, var(--green-950), var(--green-700));
    color: #fff;
}

.participant-hero::after {
    position: absolute;
    right: -3rem;
    bottom: -4.5rem;
    width: 10rem;
    height: 10rem;
    border: 1.5rem solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    content: "";
}

.participant-hero h1,
.participant-hero .eyebrow,
.participant-hero > p:last-child {
    position: relative;
    z-index: 1;
    color: #fff;
}

.participant-hero .eyebrow {
    color: #b9ead4;
}

.form-card--participant {
    box-shadow: none;
}

.meal-card__participant,
.meal-card__date {
    margin-bottom: 0.25rem;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.meal-card .meta-list {
    padding-block: 0.9rem;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.meal-record {
    scroll-margin-top: 1rem;
}

.meal-record__success {
    margin-bottom: 0.65rem;
    padding: 0.65rem 0.8rem;
    font-size: 0.86rem;
}

.meal-card--new {
    border-color: var(--green-700);
    background: var(--green-50);
    box-shadow: 0 0 0 3px rgba(23, 107, 77, 0.16), var(--shadow);
}

.notes-block {
    margin-top: 0.85rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    background: #f3f6f4;
}

.notes-block strong {
    font-size: 0.78rem;
}

.notes-block p {
    margin: 0.2rem 0 0;
    color: #405047;
    font-size: 0.9rem;
    white-space: pre-line;
}

.section-heading__support {
    max-width: 38rem;
    margin: 0.45rem 0 0;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.55;
}

.meal-analysis-region {
    min-width: 0;
    margin-top: 1rem;
    padding: 0.35rem;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
}

.meal-analysis-region[data-analysis-updated="true"] {
    border-color: #a9cdbb;
    background: rgba(223, 243, 233, 0.45);
    box-shadow: inset 0.22rem 0 0 var(--green-700);
}

.analysis-state-heading {
    display: flex;
    min-height: 1.8rem;
    align-items: center;
    justify-content: flex-end;
}

.analysis-status-copy,
.analysis-panel {
    margin-top: 1rem;
    padding: 0.9rem;
    border: 1px solid #c9ddd3;
    border-radius: var(--radius-sm);
    background: var(--green-50);
}

.meal-analysis-region > .analysis-status-copy,
.meal-analysis-region > .analysis-panel {
    margin-top: 0.65rem;
}

.analysis-status-copy p,
.analysis-panel > p:last-child {
    margin: 0;
}

.analysis-status-copy .button {
    margin-top: 0.65rem;
}

.analysis-panel--warning {
    border-color: var(--warm-line);
    background: var(--warm);
    color: #6c5011;
}

.analysis-panel--danger {
    border-color: var(--danger-line);
    background: var(--danger-bg);
    color: #812222;
}

.analysis-panel h4,
.analysis-panel h5 {
    margin-bottom: 0.55rem;
}

.analysis-summary,
.analysis-metrics {
    display: grid;
    gap: 0.7rem;
    margin: 0.8rem 0 0;
}

.analysis-summary div,
.analysis-metrics div {
    padding: 0.65rem;
    border-radius: 0.45rem;
    background: #fff;
}

.analysis-summary dt,
.analysis-metrics dt {
    color: var(--muted);
    font-size: 0.73rem;
    font-weight: 750;
}

.analysis-summary dd,
.analysis-metrics dd {
    margin: 0.15rem 0 0;
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 700;
    overflow-wrap: anywhere;
}

.analysis-list,
.analysis-uncertainty {
    margin-top: 0.9rem;
}

.analysis-list ul {
    margin: 0;
    padding-left: 1.2rem;
}

.analysis-list li + li {
    margin-top: 0.3rem;
}

.analysis-uncertainty {
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    background: #fff;
}

.analysis-uncertainty p {
    margin: 0.25rem 0 0;
}

.analysis-disclaimer {
    margin-top: 1rem !important;
    padding: 0.75rem;
    border-left: 4px solid var(--green-700);
    background: #fff;
    color: #405047;
    font-size: 0.8rem;
    line-height: 1.5;
}

.moderator-meal-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
    margin-top: 0.75rem;
}

.moderator-meal-actions .image-link {
    margin-top: 0;
}

.moderator-analysis-panel,
.moderator-attempts,
.moderator-reprocess-panel {
    margin-top: 1.5rem;
}

.moderator-safe-error {
    margin: 0.85rem 0 0;
}

.moderator-analysis-lists {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.moderator-analysis-lists section {
    padding: 0.9rem;
    border-radius: var(--radius-sm);
    background: var(--green-50);
}

.moderator-analysis-lists h3 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.moderator-analysis-lists ul,
.moderator-analysis-lists p {
    margin: 0;
}

.moderator-attempt-list {
    grid-template-columns: 1fr !important;
}

.moderator-confirmation label {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.6rem;
    align-items: start;
}

.moderator-confirmation input {
    width: 1.2rem;
    min-height: 1.2rem;
    margin-top: 0.1rem;
    accent-color: var(--green-800);
}

.image-link {
    display: inline-flex;
    min-height: 2.7rem;
    align-items: center;
    margin-top: 0.75rem;
    font-size: 0.9rem;
    font-weight: 800;
    text-decoration: none;
}

.image-link:hover {
    text-decoration: underline;
}

.empty-state {
    padding: 2.5rem 1rem;
    text-align: center;
}

.empty-state__icon {
    display: grid;
    width: 3rem;
    height: 3rem;
    margin: 0 auto 0.8rem;
    place-items: center;
    border-radius: 50%;
    background: var(--green-100);
    color: var(--green-800);
    font-size: 1.1rem;
    font-weight: 850;
}

.empty-state p {
    max-width: 28rem;
    margin: 0 auto 1.1rem;
    color: var(--muted);
}

.empty-state--compact {
    padding-block: 1.5rem;
    box-shadow: none;
}

.copy-field {
    display: grid;
    gap: 0.65rem;
}

.copy-field input {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.8rem;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    margin-top: 1.5rem;
    color: var(--muted);
    font-size: 0.82rem;
}

.site-footer {
    padding-block: 1.25rem;
    border-top: 1px solid var(--line);
    background: #eef3f0;
    color: var(--muted);
    font-size: 0.8rem;
    text-align: center;
}

.site-footer p {
    margin: 0;
}

@media (min-width: 42rem) {
    .site-header__inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .site-nav {
        width: auto;
        overflow: visible;
    }

    .page-shell {
        padding-block: 2.75rem 4rem;
    }

    .page-heading--with-action {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .form-card,
    .filter-card,
    .one-time-card {
        padding: 1.5rem;
    }

    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .filter-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .participant-card,
    .meal-card {
        padding: 1.25rem;
    }

    .participant-card {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 1.25rem;
        align-items: center;
    }

    .participant-card__summary {
        margin-bottom: 0;
    }

    .action-group {
        max-width: 14rem;
        padding: 0 0 0 1.25rem;
        border-top: 0;
        border-left: 1px solid var(--line);
    }

    .meta-list--inline,
    .participant-card .meta-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .analysis-summary,
    .analysis-metrics,
    .moderator-analysis-lists {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .copy-field {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .copy-field .button {
        min-width: 8.5rem;
    }

    .participant-hero {
        margin: -2.75rem 0 1.5rem;
        padding: 2.5rem;
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }
}

@media (min-width: 62rem) {
    .filter-grid {
        grid-template-columns: 1.3fr repeat(3, 1fr);
    }

    .filter-card > .button {
        width: auto;
    }

    .meal-list:not(.meal-list--participant) {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .analysis-metrics {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 26rem) {
    .analysis-status-copy .button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}