/* ==========================================================================
   Freelancer Tools — Design System
   Brand tokens live here. To rebrand: change --brand-name (used via JS,
   see assets/js/config.js) and the color custom properties below.
   ========================================================================== */

:root {
  /* ---- Brand palette (swap these to rebrand) ---- */
  --color-ink: #1c1a17;          /* primary text */
  --color-ink-soft: #3d3833;     /* secondary text */
  --color-ink-muted: #6b6459;    /* hints, labels, meta */
  --color-paper: #faf7f2;        /* page background */
  --color-paper-alt: #efe9e0;    /* card / panel background */
  --color-border: #ddd4c6;       /* hairlines, input borders */

  --color-accent: #8a4b2f;       /* single primary action color (warm rust) */
  --color-accent-dark: #6e3b24;  /* hover/active state */
  --color-accent-contrast: #faf7f2; /* text on accent */

  --color-success: #1a6b3c;
  --color-success-bg: #e6f2ea;
  --color-error: #b3241c;
  --color-error-bg: #fbeae8;

  /* ---- Type ---- */
  --font-heading: Georgia, "Iowan Old Style", "Palatino Linotype", ui-serif, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* ---- Spacing scale ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  /* ---- Radius / shadow ---- */
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 3px rgba(28, 26, 23, 0.08), 0 1px 2px rgba(28, 26, 23, 0.06);

  /* ---- Touch target minimum ---- */
  --touch-min: 44px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
}
p { margin: 0 0 var(--space-4); }
a { color: var(--color-accent); }
a:hover { color: var(--color-accent-dark); }

/* ---- Layout ---- */
.site-header {
  padding: var(--space-5) var(--space-4) var(--space-4);
  max-width: 900px;
  margin: 0 auto;
}
.site-header__brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.site-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-4) var(--space-8);
}
.page-title {
  font-size: 1.9rem;
  margin-bottom: var(--space-2);
}
.page-lede {
  font-size: 1.05rem;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-6);
  max-width: 60ch;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}
.btn--primary:hover { background: var(--color-accent-dark); }
.btn--primary:focus-visible { outline: 3px solid var(--color-accent-dark); outline-offset: 2px; }
.btn--secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn--secondary:hover { background: var(--color-paper-alt); }
.btn--danger-text {
  background: transparent;
  color: var(--color-error);
  border: none;
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: var(--space-2) var(--space-3);
  font-size: 0.9rem;
  cursor: pointer;
}
.btn--danger-text:hover { text-decoration: underline; }
.btn--icon {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-error);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn--icon:hover { background: var(--color-error-bg); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Form elements ---- */
.field { margin-bottom: var(--space-4); }
.field__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-2);
}
.field__hint {
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  margin-top: var(--space-1);
}
.field__input,
.field__select,
.field__textarea {
  width: 100%;
  min-height: var(--touch-min);
  padding: var(--space-3);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-ink);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.field__textarea { min-height: 88px; resize: vertical; }
.field__input:focus,
.field__select:focus,
.field__textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(138, 75, 47, 0.18);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
@media (min-width: 640px) {
  .field-row--2 { grid-template-columns: 1fr 1fr; }
  .field-row--3 { grid-template-columns: 2fr 1fr 1fr; }
}

/* ---- Change-order form ---- */
.change-order-form {
  background: var(--color-paper-alt);
  border-radius: var(--radius);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
}
.change-order-form__section {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.change-order-form__section:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.change-order-form__section-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: var(--space-1);
}
.change-order-form__section-number {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  margin-right: var(--space-2);
}
.change-order-form__section-hint {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.change-order-form__line-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  position: relative;
}
.change-order-form__line-item-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
@media (min-width: 640px) {
  .change-order-form__line-item-grid {
    grid-template-columns: 3fr 1.2fr 1fr;
  }
}
.change-order-form__line-item-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-3);
  gap: var(--space-3);
}
.change-order-form__hours-preview {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
}
.change-order-form__line-item-amount {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.change-order-form__add-row {
  margin-top: var(--space-2);
}
.change-order-form__logo-preview {
  margin-top: var(--space-3);
  max-width: 160px;
  max-height: 80px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  background: #fff;
}
.change-order-form__clear {
  text-align: right;
  margin-top: var(--space-3);
}

/* ---- Preview panel ---- */
.co-preview {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  margin-bottom: var(--space-5);
  font-family: var(--font-body);
}
.co-preview__masthead {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-ink);
  flex-wrap: wrap;
}
.co-preview__logo { max-width: 120px; max-height: 60px; object-fit: contain; }
.co-preview__title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  letter-spacing: 0.03em;
  margin: 0;
}
.co-preview__meta {
  text-align: right;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.co-preview__meta strong { color: var(--color-ink); }
.co-preview__parties {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
@media (min-width: 640px) {
  .co-preview__parties { grid-template-columns: 1fr 1fr; }
}
.co-preview__party-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}
.co-preview__party-name { font-weight: 700; }
.co-preview__reference {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-5);
  padding: var(--space-3);
  background: var(--color-paper-alt);
  border-radius: var(--radius-sm);
}
.co-preview__table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-4);
  font-size: 0.92rem;
}
.co-preview__table th,
.co-preview__table td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.co-preview__table th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}
.co-preview__table td--num,
.co-preview__table th--num { text-align: right; }
.co-preview__totals {
  margin-left: auto;
  max-width: 280px;
  font-size: 0.95rem;
}
.co-preview__totals-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-1) 0;
}
.co-preview__totals-row--total {
  font-weight: 700;
  font-size: 1.1rem;
  border-top: 2px solid var(--color-ink);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
}
.co-preview__signatures {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-6);
}
@media (min-width: 640px) {
  .co-preview__signatures { grid-template-columns: 1fr 1fr; }
}
.co-preview__sig-line {
  border-top: 1px solid var(--color-ink);
  padding-top: var(--space-2);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}
.co-preview__footer {
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  font-size: 0.75rem;
  color: var(--color-ink-muted);
  text-align: center;
}

/* ---- Download bar ---- */
.download-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-7);
}
.download-bar__status {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
}
.download-bar__status--success { color: var(--color-success); }
.download-bar__status--error { color: var(--color-error); }

/* ---- SEO content ---- */
.seo-content {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
  margin-top: var(--space-6);
  color: var(--color-ink-soft);
}
.seo-content h2 { font-size: 1.4rem; margin-top: var(--space-6); }
.seo-content h2:first-child { margin-top: 0; }
.faq__item { margin-bottom: var(--space-5); }
.faq__question { font-size: 1.05rem; margin-bottom: var(--space-1); color: var(--color-ink); }
.faq__answer { margin: 0; }

/* ---- Footer ---- */
.site-footer {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: var(--space-6) var(--space-4);
  margin-top: var(--space-8);
}
.site-footer__inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.site-footer__privacy {
  font-weight: 700;
  color: var(--color-paper);
}
.site-footer__meta {
  font-size: 0.85rem;
  color: #c9c2b6;
}
.site-footer a { color: var(--color-paper); }

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