:root {
    color-scheme: light;
    --ink: #19372c;
    --muted: #5b6e63;
    --green: #28734e;
    --green-dark: #194d36;
    --gold: #f58a00;
    --paper: #edf4ef;
    --card: #fff;
    --line: #dfe9e1;
    --danger: #ad3027;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.5 "Segoe UI", Arial, sans-serif; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; }
.topbar { background: #fff; color: var(--ink); border-bottom: 1px solid var(--line); }
.topbar-inner { display: flex; align-items: center; gap: clamp(16px, 2vw, 28px); width: min(100%, 1440px); min-height: 132px; margin: 0 auto; padding: 14px 24px; }
.brand { display: inline-flex; align-items: center; gap: 16px; min-width: 0; flex: 0 1 auto; color: inherit; }
.brand:hover { text-decoration: none; }
.brand strong, .brand small { display: block; }
.brand strong { max-width: min(22vw, 240px); overflow: hidden; font-size: 17px; letter-spacing: -.02em; text-overflow: ellipsis; white-space: nowrap; }
.brand small { color: var(--green); font-size: 11px; letter-spacing: .08em; }
.brand-logo { display: block; width: clamp(200px, 19vw, 280px); max-width: 100%; height: auto; object-fit: contain; object-position: left center; }
.brand-copy { padding-left: 16px; border-left: 1px solid var(--line); }
.brand-copy strong { color: #16843f; }
.brand-mark { display: grid; place-items: center; width: 70px; height: 70px; border: 2px solid #d5bd8c; border-radius: 18px; color: #f5e9c9; font-size: 27px; font-weight: 800; letter-spacing: .05em; }
.brand-mark.small { width: 42px; height: 42px; border-radius: 12px; font-size: 18px; }
.user-menu { display: flex; align-items: center; gap: 14px; margin-left: 0; }
.user-menu > span { color: #16843f; font-size: 13px; }
.user-menu form { margin: 0; }
.user-menu .header-action { min-height: 48px; padding: 10px 22px; border-radius: 10px; }
.app-shell { max-width: 1440px; margin: 0 auto; padding: 24px; }
.tabs { display: flex; gap: 4px; }
.tabs a { white-space: nowrap; padding: 12px 13px; color: var(--ink); font-size: 16px; font-weight: 500; border-bottom: 3px solid transparent; }
.tabs a:hover { color: var(--green); text-decoration: none; }
.tabs a.active { color: var(--green); border-bottom-color: transparent; }
.top-nav { min-width: 0; flex-shrink: 0; flex-wrap: wrap; align-self: stretch; align-items: center; margin: 0 0 0 auto; }
.page-heading, .section-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.page-heading { margin: 8px 0 24px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 5px; font-size: clamp(26px, 3vw, 36px); line-height: 1.2; }
h2 { margin-bottom: 16px; font-size: 20px; }
.section-heading h2 { margin-bottom: 3px; }
.muted, .eyebrow, .fine-print { color: var(--muted); }
.muted { margin-bottom: 0; }
.eyebrow { margin-bottom: 7px; font-size: 11px; font-weight: 750; letter-spacing: .13em; }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 20px; }
.metric, .panel, .auth-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 4px 14px #194d360a; }
.metric { padding: 18px 20px; }
.metric span { display: block; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.metric strong { display: block; margin-top: 6px; color: var(--green); font-size: 27px; }
.panel { padding: 22px; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; align-items: start; }
.table-panel { min-width: 0; }
.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 11px 12px; border-bottom: 1px solid #eeeee3; text-align: left; vertical-align: middle; white-space: nowrap; }
th { background: #edf5ef; color: var(--green-dark); font-size: 10px; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
td:first-child { white-space: normal; min-width: 135px; }
tbody tr:nth-child(even) { background: #f7faf7; }
.row-note { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; }
.saved-item-name { display: flex; align-items: center; gap: 6px; }
.item-copy-form { flex: 0 0 auto; margin: 0; }
.item-copy-icon { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; padding: 0; border: 0; border-radius: 4px; background: transparent; color: #16b83e; font-size: 28px; font-weight: 800; line-height: 1; cursor: pointer; }
.item-copy-icon:hover { background: #e1f8e7; color: #0b942e; }
.item-copy-icon:focus-visible { outline: 2px solid var(--green-dark); outline-offset: 2px; }
.empty-state { padding: 20px 4px; color: var(--muted); }
.stack { display: flex; flex-direction: column; gap: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.materials-form-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); align-items: start; }
.recipe-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.recipe-heading h2 { margin: 0; }
.items-form-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 10px 12px; align-items: start; }
.items-form-grid > .field { grid-column: span 2; }
.items-form-grid .item-name-field, .items-form-grid .source-filename-field { grid-column: span 5; }
.items-form-grid .filament-spool-field { grid-column: span 6; }
.recipe-details-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; align-items: stretch; }
.recipe-details-grid textarea { flex: 1; min-height: 78px; }
.recipe-details-grid .live-previews article { padding: 9px 12px; gap: 2px; }
.recipe-details-grid .live-previews article strong { font-size: 18px; }
.saved-items-search { max-width: 400px; margin-bottom: 16px; }
.saved-items-search .fine-print { margin: 6px 0 0; }
.saved-items-pagination:not([hidden]) { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 12px; margin-top: 16px; font-size: 13px; }
.saved-items-pagination button:disabled { opacity: .45; cursor: default; }
.materials-form-grid input[type="number"], .items-form-grid input[type="number"] { max-width: 170px; }
.materials-form-grid input[name="spool_count"], .materials-form-grid input[name="quantity"],
.items-form-grid input[name="profit_percent"] { max-width: 125px; }
.form-grid.one-col { grid-template-columns: minmax(0, 1fr); }
.field { display: flex; min-width: 0; flex-direction: column; gap: 5px; color: var(--green-dark); font-size: 12px; font-weight: 650; }
.field:has(:required) > span:first-child::after { content: " *"; color: #b42318; }
.required-marker { color: #b42318; }
.required-fields-note { margin: 0; color: var(--muted); font-size: 12px; }
.field input, .field select, .field textarea { width: 100%; min-width: 0; min-height: 41px; padding: 9px 10px; border: 1px solid #bdcec1; border-radius: 7px; background: #fff; color: var(--ink); outline: none; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px #28734e24; }
.field textarea { resize: vertical; }
.field input[readonly] { background: #f5f8f8; color: var(--muted); }
.button, .button:visited { display: inline-flex; align-items: center; justify-content: center; min-height: 39px; padding: 8px 14px; border: 1px solid #cbd9ce; border-radius: 7px; background: var(--card); color: var(--ink); font-weight: 650; cursor: pointer; }
.button:hover { background: #edf5ef; text-decoration: none; }
.button.primary { border-color: var(--green); background: var(--green); color: white; }
.button.primary:hover { background: var(--green-dark); }
.button.quiet { min-height: 34px; padding: 5px 10px; color: var(--green-dark); border-color: var(--line); background: white; }
.button.quiet:hover { color: white; border-color: var(--green); background: var(--green); }
.button.danger { color: var(--danger); }
.button.wide { width: 100%; min-height: 44px; }
.button-row { display: flex; flex-wrap: wrap; gap: 9px; }
.action-box { display: grid; gap: 12px; margin-top: 22px; padding-top: 17px; border-top: 1px solid var(--line); }
.inline-form { display: flex; align-items: end; gap: 10px; flex-wrap: wrap; }
.inline-form .field { width: 130px; }
.delete-form { margin-top: 10px; }
.subheading { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); }
.import-form, .estimate-form { display: grid; gap: 10px; margin-bottom: 18px; padding: 14px; border: 1px solid var(--line); border-radius: 9px; background: #f2f7f3; }
.import-form { grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
.import-form .field { grid-column: 1; }
.import-form .button { grid-column: 2; grid-row: 1; }
.import-disclosure { margin: 12px 0 10px; }
.import-disclosure summary { width: fit-content; color: var(--green); cursor: pointer; font-weight: 650; }
.import-disclosure[open] summary { margin-bottom: 10px; }
.file-picker-control { position: relative; display: flex; min-height: 41px; align-items: center; gap: 10px; }
.file-picker-control input[type="file"] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.file-picker-control:focus-within .button { outline: 3px solid #28734e33; outline-offset: 2px; }
.file-picker-name { overflow: hidden; color: var(--muted); font-size: 12px; font-weight: 400; text-overflow: ellipsis; white-space: nowrap; }
.estimate-form { margin-top: -6px; }
.estimate-form p { margin: 0; }
.live-previews { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.live-previews article { display: flex; flex-direction: column; gap: 4px; padding: 13px; border: 1px solid var(--line); border-radius: 9px; background: #f2f7f3; }
.live-previews article span { color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .06em; }
.live-previews article strong { color: var(--green); font-size: 21px; }
.live-previews article small { color: var(--muted); font-size: 11px; }
.check-field { display: flex; gap: 8px; align-items: flex-start; font-size: 12px; color: var(--muted); }
.check-field input { margin-top: 4px; }
.password-toggle { align-items: center; cursor: pointer; }
.password-toggle input { margin: 0; }
.settings-panel { max-width: 900px; }
.profile-panel { max-width: 900px; margin-bottom: 16px; }
.assumptions { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.assumptions h2 { color: var(--ink); }
.footer { padding: 26px 0 8px; color: var(--muted); font-size: 12px; text-align: center; }
.notice { margin: 0 0 16px; padding: 11px 14px; border: 1px solid #c9d8c3; border-radius: 8px; background: #eef4e9; color: #31523a; }
.notice.error { border-color: #e3c2b9; background: #fbefec; color: #7d3e31; }
.auth-shell { display: grid; min-height: 100vh; place-items: center; padding: 24px; background: radial-gradient(ellipse at top, #e6f1e8, var(--paper) 60%); }
.auth-card { width: min(100%, 430px); padding: 34px; }
.auth-logo { display: block; width: min(100%, 300px); height: auto; margin: 0 0 21px; }
.auth-card .brand-mark { margin-bottom: 21px; background: var(--green-dark); }
.auth-card h1 { font-size: 29px; }
.auth-card .muted { margin-bottom: 22px; }
.fine-print { margin: 17px 0 0; font-size: 12px; }
.register-panel { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.register-panel summary { color: var(--green); cursor: pointer; font-weight: 650; }
.register-form { margin-top: 16px; }
.public-topbar .topbar-inner { min-height: 100px; }
.public-topbar .brand-logo { width: clamp(220px, 24vw, 350px); }
.public-topbar .header-action { flex: 0 0 auto; min-height: 44px; padding: 9px 20px; }
.public-nav { gap: 0; }
.public-nav a { padding-inline: 12px; font-size: 14px; }
.public-shell { max-width: 1180px; padding-top: 34px; }
.public-heading { margin: 8px 0 24px; }
.public-heading h1 { margin-bottom: 8px; font-size: clamp(32px, 4vw, 44px); }
.public-heading .muted { font-size: 16px; }
.public-cta { flex: 0 0 auto; min-height: 46px; }
.public-sample-label { margin: 0 0 10px; color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .1em; }
.public-panel { margin-bottom: 18px; }
.sample-badge { padding: 5px 9px; border-radius: 20px; background: #edf5ef; color: var(--green); font-size: 10px; font-weight: 750; letter-spacing: .07em; }
.public-preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.public-preview-grid .public-panel { margin-bottom: 0; }
.sample-list { display: grid; gap: 0; margin: 8px 0 0; padding: 0; list-style: none; }
.sample-list li { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 0; border-top: 1px solid var(--line); }
.sample-list li > span { display: grid; gap: 3px; }
.sample-list strong { font-size: 13px; }
.sample-list small { color: var(--muted); font-size: 11px; }
.sample-list li > b { flex: 0 0 auto; color: var(--green); font-size: 12px; }
.account-preview-list li { min-height: 62px; }
.public-bottom-cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 18px; padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: #edf5ef; }
.public-bottom-cta h2 { margin-bottom: 4px; }
.public-bottom-cta .button { flex: 0 0 auto; }
[id^="preview-"] { scroll-margin-top: 24px; }

@media (max-width: 980px) {
    .items-form-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .items-form-grid .item-name-field { grid-column: span 4; }
    .items-form-grid .source-filename-field, .items-form-grid .filament-spool-field { grid-column: span 3; }
    .recipe-details-grid { grid-template-columns: minmax(0, 1fr); }
    .public-topbar .top-nav { width: auto; margin-left: auto; }
}
@media (max-width: 1400px) {
    .topbar-inner { flex-wrap: wrap; gap: 8px 20px; padding: 12px 24px 0; }
    .brand-logo { width: clamp(200px, 24vw, 280px); }
    .top-nav { order: 3; width: 100%; justify-content: flex-end; }
    .top-nav a { padding: 10px 12px; }
}
@media (max-width: 680px) {
    .topbar-inner { gap: 8px 12px; padding: 12px 16px 0; }
    .brand strong { font-size: 16px; }
    .brand small { font-size: 11px; }
    .brand { width: 100%; }
    .brand-logo { width: clamp(180px, 56vw, 240px); }
    .brand-copy { padding-left: 10px; }
    .user-menu { gap: 8px; font-size: 13px; }
    .user-menu .header-action { min-height: 40px; padding: 7px 12px; }
    .top-nav { justify-content: flex-start; }
    .top-nav a { padding: 9px 10px; font-size: 14px; }
    .app-shell { padding: 16px; }
    .page-heading { align-items: flex-start; }
    .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
    .metric { padding: 14px; }
    .metric strong { font-size: 22px; }
    .form-grid { grid-template-columns: 1fr; }
    .items-form-grid > .field, .items-form-grid .item-name-field, .items-form-grid .source-filename-field, .items-form-grid .filament-spool-field { grid-column: 1; }
    .live-previews { grid-template-columns: 1fr; }
    .import-form { grid-template-columns: 1fr; }
    .import-form .field, .import-form .button { grid-column: 1; grid-row: auto; }
    .panel { padding: 17px; }
    .public-topbar .topbar-inner { padding-bottom: 10px; }
    .public-topbar .brand { width: auto; flex: 1 1 auto; }
    .public-topbar .brand-logo { width: clamp(180px, 56vw, 240px); }
    .public-topbar .top-nav { order: 3; width: 100%; justify-content: flex-start; margin: 0; }
    .public-topbar .top-nav a { padding: 9px 10px; font-size: 13px; }
    .public-shell { padding-top: 22px; }
    .public-heading { flex-direction: column; align-items: flex-start; gap: 16px; }
    .public-preview-grid { grid-template-columns: 1fr; gap: 12px; }
    .public-bottom-cta { align-items: flex-start; }
}