/* =============================================================================
   Bison Group - shared site stylesheet
   -----------------------------------------------------------------------------
   Defines the global design tokens and base layout used by:
     * the bisongroup.com homepage / tools hub
     * every page rendered by the cash-proof FastAPI app (loaded via base.html)
     * the future tools-inbox app
   Cash-proof's own cashproof.css extends these tokens.
   ========================================================================== */

/* --- Design tokens ---------------------------------------------------------- */
:root {
  /* Brand palette - Bison forest green on cream */
  --color-accent:        #4A7A3F;
  --color-accent-dark:   #325728;
  --color-accent-soft:   #E8EFE3;

  /* Surface + ink */
  --color-bg:            #F4F2EA;        /* page background, warm cream */
  --color-bg-deep:       #ECE9DD;
  --color-surface:       #FFFFFF;
  --color-surface-soft:  #FAFAF6;
  --color-ink:           #1F2520;        /* primary text */
  --color-ink-soft:      #4A4F49;        /* secondary text */
  --color-muted:         #7A7C75;        /* tertiary, captions, helpers */
  --color-on-dark:       #FAFAF6;
  --color-border:        #DCD8C8;
  --color-border-soft:   #E9E6D8;
  --color-danger:        #B0413E;
  --color-warning:       #B6852A;
  --color-success:       #4A7A3F;

  /* Typography */
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
                Roboto, Helvetica, Arial, sans-serif;
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-mono:  ui-monospace, 'SF Mono', Menlo, Monaco, Consolas,
                'Liberation Mono', monospace;

  /* Geometry + depth */
  --radius:      10px;
  --radius-sm:   6px;
  --radius-lg:   14px;
  --radius-pill: 999px;
  --shadow-card:        0 1px 2px rgba(15, 23, 42, 0.04),
                        0 1px 0   rgba(15, 23, 42, 0.03);
  --shadow-card-hover:  0 4px 12px rgba(15, 23, 42, 0.08),
                        0 2px 4px  rgba(15, 23, 42, 0.04);
  --shadow-pop:         0 8px 28px rgba(15, 23, 42, 0.14);

  /* Motion */
  --t-fast:   120ms;
  --t-med:    200ms;
  --easing:   cubic-bezier(.2, .8, .2, 1);
}

/* --- Reset + base ----------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--t-fast) var(--easing);
}
a:hover  { color: var(--color-accent-dark); }
a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

button { font-family: inherit; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin: 0 0 0.5rem;
}
h1 { font-size: 1.75rem; line-height: 1.2; }
h2 { font-size: 1.35rem; line-height: 1.3; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 0.75rem; color: var(--color-ink-soft); }

code, kbd, pre, samp { font-family: var(--font-mono); font-size: 0.9em; }
code {
  background: var(--color-bg-deep);
  padding: 0.05em 0.35em;
  border-radius: var(--radius-sm);
  color: var(--color-ink);
}

hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 1.5rem 0;
}

::selection { background: var(--color-accent-soft); color: var(--color-ink); }

/* --- Layout: hub container -------------------------------------------------- */
.hub__container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.25rem 1.75rem 0;
  flex: 1 0 auto;
}

@media (max-width: 720px) {
  .hub__container { padding: 0.75rem 1rem 0; }
}

/* --- Topbar ----------------------------------------------------------------- */
.hub__topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border-soft);
  margin-bottom: 1.25rem;
}

.hub__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--color-accent-dark);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.005em;
}
.hub__brand:hover { color: var(--color-accent); }

.hub__brand-logo {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}
.hub__brand-text { white-space: nowrap; }

/* Center slot - leaves auto-width but eats remaining space so the
   user menu always pins to the right edge. */
.hub__topbar-context {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
}

/* --- User menu (avatar + dropdown) ----------------------------------------- */
.hub__user-menu {
  position: relative;
  flex: 0 0 auto;
}
.hub__user-menu > summary {
  list-style: none;
  cursor: pointer;
}
.hub__user-menu > summary::-webkit-details-marker { display: none; }
.hub__user-menu > summary::marker { content: ''; }

.hub__avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-dark);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  user-select: none;
  border: 2px solid transparent;
  transition: border-color var(--t-fast) var(--easing),
              transform   var(--t-fast) var(--easing);
}
.hub__user-menu[open] > .hub__avatar,
.hub__avatar:hover {
  border-color: var(--color-accent-soft);
}
.hub__avatar:active { transform: scale(0.96); }

.hub__user-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 240px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-pop);
  padding: 0.5rem;
  z-index: 50;
}
.hub__user-dropdown-header {
  padding: 0.5rem 0.6rem 0.65rem;
  border-bottom: 1px solid var(--color-border-soft);
  margin-bottom: 0.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.hub__user-label {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.hub__user-value {
  color: var(--color-ink);
  font-size: 0.85rem;
  font-weight: 500;
  word-break: break-all;
}
.hub__signout {
  display: block;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-size: 0.85rem;
  transition: background var(--t-fast) var(--easing),
              color      var(--t-fast) var(--easing);
}
.hub__signout:hover {
  background: var(--color-bg-deep);
  color: var(--color-accent-dark);
}

/* --- Back link / breadcrumb ------------------------------------------------- */
.hub__back {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin: 0 0 1rem;
  font-size: 0.8rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.hub__back:hover { color: var(--color-accent-dark); }

/* --- Section headings ------------------------------------------------------- */
.hub__section-heading {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.55rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin: 0.25rem 0 0.4rem;
}
.hub__section-sub {
  margin: 0 0 1.25rem;
  color: var(--color-ink-soft);
  font-size: 0.95rem;
  max-width: 64ch;
}

/* --- Footer ----------------------------------------------------------------- */
.hub__footer {
  margin-top: 2.5rem;
  padding: 1rem 1.75rem 1.25rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  border-top: 1px solid var(--color-border-soft);
  background: transparent;
}

/* --- Buttons (cp-btn) ------------------------------------------------------- */
.cp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  font-family: var(--font-sans);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-ink);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--t-fast) var(--easing),
              border-color var(--t-fast) var(--easing),
              color var(--t-fast) var(--easing),
              transform var(--t-fast) var(--easing),
              box-shadow var(--t-med) var(--easing);
}
.cp-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  box-shadow: var(--shadow-card);
}
.cp-btn:active { transform: translateY(1px); }
.cp-btn:disabled,
.cp-btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.cp-btn--primary {
  background: var(--color-accent);
  color: var(--color-on-dark);
  border-color: var(--color-accent);
}
.cp-btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-on-dark);
}

.cp-btn--ghost {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-border);
}
.cp-btn--ghost:hover {
  background: var(--color-surface-soft);
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.cp-btn--small {
  padding: 0.35rem 0.7rem;
  font-size: 0.75rem;
}

/* --- Forms (cp-form, cp-field, cp-input, cp-select) ------------------------ */
.cp-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  max-width: 720px;
}

.cp-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}
.cp-col-12 { grid-column: span 12; }
.cp-col-6  { grid-column: span 6; }
.cp-col-4  { grid-column: span 4; }
.cp-col-3  { grid-column: span 3; }
@media (max-width: 720px) {
  .cp-col-6, .cp-col-4, .cp-col-3 { grid-column: span 12; }
}

.cp-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.cp-field__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.cp-input,
.cp-select,
input[type="text"],
input[type="number"],
input[type="email"],
input[type="month"],
input[type="date"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 1px 0 rgba(15, 23, 42, 0.02);
  transition: border-color var(--t-fast) var(--easing),
              box-shadow var(--t-fast) var(--easing);
}
.cp-input:hover,
.cp-select:hover,
input:hover,
select:hover { border-color: #C5C0AC; }

.cp-input:focus,
.cp-select:focus,
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(74, 122, 63, 0.12);
}

.cp-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%237A7C75' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='4,6 8,10 12,6'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  background-size: 14px 14px;
  padding-right: 2rem;
}

.cp-form__actions {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border-soft);
}

.cp-help {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* --- Toolbar (top-of-page action row) -------------------------------------- */
.cp-toolbar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin: 0.75rem 0 1.25rem;
  flex-wrap: wrap;
}
.cp-toolbar__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
  white-space: nowrap;
}
.cp-toolbar > .cp-select { flex: 1 1 280px; min-width: 220px; max-width: 480px; }
.cp-toolbar > .cp-btn { margin-left: auto; }

/* --- Empty state ----------------------------------------------------------- */
.cp-empty {
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.cp-empty__art {
  width: 64px;
  height: 64px;
  color: var(--color-accent);
  opacity: 0.5;
  margin-bottom: 0.25rem;
}
.cp-empty__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  margin: 0;
  color: var(--color-ink);
}
.cp-empty__sub {
  margin: 0;
  max-width: 56ch;
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}
.cp-empty__cta { margin-top: 1rem; }

/* --- Flash banners --------------------------------------------------------- */
.cp-flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  margin: 0.75rem 0 1rem;
  font-size: 0.9rem;
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}
.cp-flash--error {
  background: #FBEDEC;
  border-color: #E5BFBC;
  color: #6E2A28;
}

/* --- Misc utility helpers --------------------------------------------------- */
.cp-muted     { color: var(--color-muted); }
.cp-section   { margin: 1.75rem 0; }

/* Print: keep it readable, drop the chrome */
@media print {
  .hub__topbar, .hub__footer, .hub__back, .cp-toolbar { display: none; }
  .hub__container { max-width: none; padding: 0; }
  body { background: white; }
}