/* invoices.net — landing page / invoice editor */

:root {
    --accent: #0f766e;
    --accent-hover: #115e59;
    --accent-soft: #ccfbf1;
    --accent-tint: #f0fdfa;

    --ink: #111827;
    --ink-2: #374151;
    --muted: #6b7280;
    --line: #e5e7eb;
    --line-strong: #d1d5db;
    --bg: #f3f4f6;
    --paper: #ffffff;

    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 2px rgb(0 0 0 / .04), 0 8px 24px rgb(0 0 0 / .08);
    --ring: 0 0 0 3px rgb(15 118 110 / .25);

    --s1: 4px;
    --s2: 8px;
    --s3: 12px;
    --s4: 16px;
    --s5: 24px;
    --s6: 32px;
    --s7: 48px;
    --s8: 64px;

    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    color: var(--ink);
    background: var(--bg);
}

img { max-width: 100%; display: block; }

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap; border: 0;
}

.skip-link {
    position: absolute; left: var(--s4); top: -100px;
    padding: var(--s2) var(--s3);
    background: var(--ink); color: #fff;
    border-radius: var(--radius-sm);
    z-index: 100;
}
.skip-link:focus { top: var(--s2); }

.container {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: var(--s5);
}
.container-narrow { max-width: 860px; }

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
    padding: 10px 18px;
    font: inherit; font-weight: 600;
    border: 1px solid transparent; border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-ghost:hover { background: var(--accent-tint); }
.btn-sm { padding: 6px 14px; font-size: 14px; }
.btn-block { width: 100%; padding-block: 14px; font-size: 16px; }

.link-btn {
    padding: 0;
    font: inherit; font-weight: 600; font-size: 14px;
    color: var(--accent);
    background: none; border: 0;
    cursor: pointer;
}
.link-btn:hover { color: var(--accent-hover); text-decoration: underline; }

/* ---------- Header ---------- */

.site-header {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    position: sticky; top: 0; z-index: 10;
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between; gap: var(--s4);
    min-height: 60px;
}
.brand {
    display: inline-flex; align-items: center; gap: var(--s2);
    font-size: 20px; font-weight: 800; letter-spacing: -.02em;
    color: var(--ink); text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand-tld { color: var(--accent); }
.brand-mark {
    width: 26px; height: 26px; border-radius: 7px;
    background:
        linear-gradient(#fff, #fff) 8px 9px / 10px 2px no-repeat,
        linear-gradient(#fff, #fff) 8px 13px / 10px 2px no-repeat,
        linear-gradient(#fff, #fff) 8px 17px / 6px 2px no-repeat,
        var(--accent);
}
.site-nav { display: flex; align-items: center; gap: var(--s5); }
.site-nav a { color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: 14px; }
.site-nav a:hover { color: var(--accent); }

/* ---------- Hero ---------- */

.hero {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding-block: var(--s7);
}
.hero h1 { font-size: 40px; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 var(--s3); }
.hero .lead { max-width: 760px; margin: 0; color: var(--ink-2); }

/* ---------- Editor layout ---------- */

.editor {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: var(--s5);
    align-items: start;
    padding-block: var(--s6) var(--s7);
}

.paper {
    background: var(--paper);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--s7);
    display: flex; flex-direction: column; gap: var(--s6);
}

/* Editable fields: look like text until hovered/focused */
.field {
    width: 100%;
    padding: 6px 10px;
    font: inherit; color: var(--ink);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    transition: border-color .15s, box-shadow .15s, background-color .15s;
}
textarea.field { resize: vertical; min-height: 38px; line-height: 1.45; }
.field::placeholder { color: #9ca3af; }
.field:hover { border-color: var(--line-strong); }
.field:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); background: var(--paper); }
.field-label { color: var(--muted); font-weight: 500; }
.paper textarea.field,
.paper .party .field:not(.field-label),
.paper .meta-row .field:not(.field-label) { border-color: var(--line); }

input[type="number"] { -moz-appearance: textfield; appearance: textfield; }
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }

.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Top: logo + title */
.paper-top {
    display: flex; justify-content: space-between; align-items: flex-start; gap: var(--s5);
}
.logo-drop {
    display: grid; place-items: center;
    width: 220px; height: 120px;
    border: 2px dashed var(--line-strong);
    border-radius: var(--radius);
    background: #fafafa;
    color: var(--muted); font-weight: 600;
    cursor: pointer;
    transition: border-color .15s, background-color .15s, color .15s;
}
.logo-drop:hover, .logo-drop:focus-within {
    border-color: var(--accent); background: var(--accent-tint); color: var(--accent);
}
.doc-heading { text-align: right; max-width: 320px; }
.field-title {
    font-size: 40px; font-weight: 300; letter-spacing: .02em;
    text-align: right; padding-block: 0;
}
.doc-number {
    display: flex; align-items: center; justify-content: flex-end;
    margin-top: var(--s2);
    border: 1px solid var(--line); border-radius: var(--radius-sm);
    padding-left: var(--s3);
    color: var(--muted);
}
.doc-number:focus-within { border-color: var(--accent); box-shadow: var(--ring); }
.doc-number .field { border: 0; width: 140px; box-shadow: none; }

/* Parties + meta */
.paper-parties {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 320px); gap: var(--s6);
}
.parties {
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4);
}
.party-from { grid-column: 1 / -1; max-width: 380px; }
.party .field-label { padding-inline: 0; margin-bottom: var(--s1); font-size: 14px; }

.meta { display: flex; flex-direction: column; gap: var(--s2); }
.meta-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--s2); align-items: center;
}
.meta-row .field-label { text-align: right; }

/* Line items */
.items { display: flex; flex-direction: column; gap: var(--s2); }
.items-head, .item-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 96px 130px 120px 28px;
    gap: var(--s2);
    align-items: center;
}
.items-head {
    background: var(--ink);
    border-radius: var(--radius-sm);
    padding: var(--s1);
}
.items-head .field {
    color: #fff; font-weight: 600; font-size: 14px;
}
.items-head .field:hover { border-color: rgb(255 255 255 / .3); }
.items-head .field:focus { background: var(--ink-2); }
.items-body { display: flex; flex-direction: column; gap: var(--s2); padding-inline: var(--s1); }
.item-row .field { border-color: var(--line); }
.amount { padding-right: 10px; color: var(--ink-2); }

.money-input {
    display: flex; align-items: center;
    border: 1px solid var(--line); border-radius: var(--radius-sm);
    padding-inline: 10px 0;
    color: var(--muted);
    background: var(--paper);
}
.money-input:focus-within { border-color: var(--accent); box-shadow: var(--ring); }
.money-input .field { border: 0; box-shadow: none; padding-left: var(--s1); }
.money-input .suffix { padding-right: 10px; }

.remove-row {
    width: 28px; height: 28px;
    display: grid; place-items: center;
    font-size: 20px; line-height: 1;
    color: var(--muted);
    background: none; border: 0; border-radius: 50%;
    cursor: pointer;
}
.remove-row:hover { color: #b91c1c; background: #fee2e2; }
.items-body .item-row:only-child .remove-row { visibility: hidden; }

.add-row { align-self: flex-start; margin-top: var(--s2); padding: 8px 14px; font-size: 14px; }

/* Bottom: notes + totals */
.paper-bottom {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 340px); gap: var(--s6);
}
.notes { display: flex; flex-direction: column; gap: var(--s4); }
.note .field-label { padding-inline: 0; margin-bottom: var(--s1); font-size: 14px; }

.totals { display: flex; flex-direction: column; gap: var(--s2); }
.total-row {
    display: grid; grid-template-columns: 1fr 150px; gap: var(--s2); align-items: center;
}
.total-row .field-label { text-align: right; }
.total-row > output { padding-right: 10px; }
.total-row-strong output { font-weight: 700; }
.total-row-balance {
    border-top: 1px solid var(--line);
    padding-top: var(--s3); margin-top: var(--s1);
}
.total-row-balance .field-label { color: var(--ink); font-weight: 700; }
.total-row-balance output { font-size: 18px; font-weight: 700; }
.adjust-links { display: flex; justify-content: flex-end; gap: var(--s4); padding-right: 10px; }

/* Sidebar */
.sidebar {
    position: sticky; top: 84px;
    display: flex; flex-direction: column; gap: var(--s5);
    padding: var(--s5);
    background: var(--paper);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.sidebar-group { margin: 0; padding: 0; border: 0; min-width: 0; }
.sidebar-label {
    display: block; margin-bottom: var(--s2); padding: 0;
    font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
    color: var(--muted);
}
.select {
    width: 100%;
    padding: 9px 12px;
    font: inherit; color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
}
.select:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }

.swatches { display: flex; gap: var(--s3); }
.swatch {
    position: relative;
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--swatch);
    cursor: pointer;
}
.swatch input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.swatch:has(input:checked) { box-shadow: 0 0 0 2px var(--paper), 0 0 0 4px var(--swatch); }
.swatch:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 4px; }

.sidebar-links {
    display: flex; flex-direction: column; align-items: flex-start; gap: var(--s3);
    padding-top: var(--s4); border-top: 1px solid var(--line);
}
.sidebar-note { margin: 0; font-size: 13px; color: var(--muted); }

/* ---------- Info / SEO section ---------- */

.info {
    background: var(--paper);
    border-top: 1px solid var(--line);
    padding-block: var(--s8);
}
.info h2 { font-size: 24px; letter-spacing: -.01em; margin: var(--s7) 0 var(--s4); }
.info h2.info-first { margin-top: 0; }
.info h3 { font-size: 16px; margin: 0 0 var(--s1); }
.info p { margin: 0; color: var(--ink-2); }
.lead { font-size: 18px; }

.steps {
    list-style: none; padding: 0; margin: 0;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s5);
    counter-reset: step;
}
.steps li { counter-increment: step; }
.steps li::before {
    content: counter(step);
    display: grid; place-items: center;
    width: 36px; height: 36px; margin-bottom: var(--s3);
    border-radius: 50%;
    background: var(--accent-soft); color: var(--accent-hover);
    font-weight: 700;
}

.features {
    list-style: none; padding: 0; margin: 0;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4);
}
.features li {
    padding: var(--s5);
    border: 1px solid var(--line); border-radius: var(--radius);
    background: #fafafa;
}

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
    display: flex; justify-content: space-between; align-items: center; gap: var(--s4);
    padding: var(--s4) 0;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: "+";
    font-size: 22px; font-weight: 400; line-height: 1;
    color: var(--accent);
    transition: transform .2s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: var(--s4); }

/* ---------- Footer ---------- */

.site-footer { background: var(--bg); border-top: 1px solid var(--line); }
.footer-inner {
    display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--s3);
    padding-block: var(--s5);
    font-size: 14px; color: var(--muted);
}
.footer-inner p { margin: 0; }
.footer-inner nav { display: flex; gap: var(--s5); }
.footer-inner a { color: var(--muted); text-decoration: none; }
.footer-inner a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
    .editor { grid-template-columns: 1fr; }
    .sidebar { position: static; order: -1; flex-direction: row; flex-wrap: wrap; align-items: flex-end; }
    .sidebar > .btn-block { width: auto; flex: 1 1 200px; }
    .sidebar-group { flex: 1 1 160px; }
    .sidebar-links { flex-direction: row; border-top: 0; padding-top: 0; }
    .sidebar-note { flex-basis: 100%; }
    .paper { padding: var(--s6); }
    .paper-parties, .paper-bottom { grid-template-columns: 1fr; }
    .meta, .totals { max-width: 420px; margin-left: auto; width: 100%; }
}

@media (max-width: 640px) {
    .container { padding-inline: var(--s4); }
    .site-nav a { display: none; }
    .editor { padding-top: var(--s4); }
    .paper { padding: var(--s5) var(--s4); gap: var(--s5); }
    .paper-top { flex-direction: column-reverse; align-items: stretch; }
    .doc-heading { max-width: none; }
    .logo-drop { width: 100%; height: 96px; }
    .parties { grid-template-columns: 1fr; }
    .party-from { max-width: none; }

    .items-head { display: none; }
    .items-body { padding: 0; gap: var(--s3); }
    .item-row {
        grid-template-columns: 1fr 1fr 28px;
        grid-template-areas:
            "desc desc remove"
            "qty  rate remove"
            "amt  amt  remove";
        padding: var(--s3);
        border: 1px solid var(--line); border-radius: var(--radius);
        background: #fafafa;
    }
    .item-row > :nth-child(1) { grid-area: desc; }
    .item-row > :nth-child(2) { grid-area: qty; }
    .item-row > :nth-child(3) { grid-area: rate; }
    .item-row > :nth-child(4) { grid-area: amt; font-weight: 600; }
    .item-row > :nth-child(5) { grid-area: remove; align-self: start; }
    .item-row .field, .item-row .money-input { background: var(--paper); }

    .total-row { grid-template-columns: 1fr 140px; }
    .info { padding-block: var(--s7); }
    .hero { padding-block: var(--s5); }
    .hero h1 { font-size: 28px; }
    .hero .lead { font-size: 16px; }
    .steps, .features { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ---------- Print: just the invoice ---------- */

@media print {
    @page { margin: 12mm; }
    body { background: #fff; font-size: 12pt; }
    .site-header, .hero, .sidebar, .info, .site-footer, .skip-link,
    .add-row, .remove-row, .adjust-links { display: none !important; }
    .container { max-width: none; padding: 0; }
    .editor { display: block; padding: 0; }
    .paper { box-shadow: none; padding: 0; border-radius: 0; }
    .field, .money-input, .doc-number, .item-row .field,
    .paper textarea.field { border-color: transparent !important; box-shadow: none !important; resize: none; }
    .field::placeholder { color: transparent; }
    .logo-drop:not(.has-logo) { visibility: hidden; }
    .items-head { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    .item-row { break-inside: avoid; }
}