/*
 * brutalist.css — Foundation for the bold-brutalist archetype
 *
 * Archetype ID: bold-brutalist
 * Craft profile (reference-corpus.md):
 *   radius system: zero or max (0px or 9999px — never in between)
 *   button style:  high-contrast; heavy border (2px+); flat fill; no shadow
 *   divider style: bold solid line (2–3px) or full color-block section break
 *   icon treatment: bold, oversized (32px+); high contrast; no tinted backgrounds
 *
 * Override --color-accent (and related tokens) via a :root block in the
 * generated page to brand this foundation without touching the file.
 *
 * Issue: #1048 — custom CSS component library per archetype
 */

/* --- 1. Design Tokens --- */

:root {
  /* Accent — override per brand */
  --color-accent:          #ff2d00;          /* bold red-orange default */
  --color-accent-subtle:   rgba(255, 45, 0, 0.08);
  --color-accent-hover:    rgba(255, 45, 0, 0.14);

  /* Surface palette — stark, high contrast */
  --color-bg:              #ffffff;
  --color-bg-raised:       #f5f5f5;
  --color-bg-sunken:       #ebebeb;
  --color-fg:              #000000;
  --color-fg-muted:        #333333;
  --color-fg-faint:        #777777;
  --color-border:          #000000;          /* full-black border — brutalist */
  --color-border-strong:   #000000;

  /* Code surface */
  --code-bg:               #000000;

  /* Radius system — zero OR pill, nothing in between (N13 compliance by contrast) */
  --radius-sm:             0px;             /* all boxes: hard edge */
  --radius-btn:            0px;             /* button — hard edge */
  --radius-input:          0px;             /* input — hard edge */
  --radius-card:           0px;             /* card — hard edge */
  --radius-pill:           9999px;          /* pill badge only — maximum curve */

  /* Shadow tokens — no shadow (craft profile: flat fill, no shadow) */
  --shadow-card:           none;
  --shadow-card-hover:     4px 4px 0 var(--color-fg);
  --shadow-btn:            none;
  --shadow-elevated:       8px 8px 0 var(--color-fg);

  /* Transition — snap, immediate */
  --transition-fast:       80ms step-end;
  --transition-base:       100ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:       200ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Spacing scale */
  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px;
  --space-6:24px; --space-8:32px; --space-12:48px; --space-16:64px; --space-24:96px;

  /* Icon sizing — oversized (32px+), no containers (craft profile) */
  --icon-feature: 36px;
  --icon-nav:     24px;
  --icon-inline:  20px;
}

/* --- 2. Element Overrides (N18 compliance) --- */

/* Custom selection — bold accent fill */
::selection {
  background: var(--color-accent);
  color:      #ffffff;
}

/* Custom focus ring — heavy black border (N18, N15 compliance) */
:focus-visible {
  outline:        3px solid var(--color-fg);
  outline-offset: 2px;
}

/* Custom scrollbar — thick, stark */
::-webkit-scrollbar       { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg-raised); }
::-webkit-scrollbar-thumb {
  background:    var(--color-fg);
  border-radius: 0;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

/* Code blocks — inverse, high-contrast */
code, kbd {
  background:    var(--code-bg);
  border-radius: 0;
  padding:       3px 8px;
  font-size:     0.875em;
  font-family:   ui-monospace, SFMono-Regular, Menlo, monospace;
  color:         #ffffff;
  border:        2px solid var(--color-fg);
}

/* Links — bold underline (N17 compliance) */
a:not([class]) {
  color:                    var(--color-fg);
  text-decoration:          underline;
  text-decoration-color:    var(--color-fg);
  text-underline-offset:    4px;
  text-decoration-thickness: 2px;          /* heavy underline — brutalist */
  transition:               color var(--transition-fast),
                            text-decoration-color var(--transition-fast);
}
a:not([class]):hover {
  color:                 var(--color-accent);
  text-decoration-color: var(--color-accent);
}

/* --- 3. Component Classes --- */

/* --- Button --- */

.btn {
  display:          inline-flex;
  align-items:      center;
  gap:              var(--space-2);
  padding:          12px 24px;
  border-radius:    var(--radius-btn);     /* 0px — hard edge */
  font-size:        0.9375rem;
  font-weight:      700;
  line-height:      1;
  letter-spacing:   0.05em;
  text-transform:   uppercase;
  cursor:           pointer;
  white-space:      nowrap;
  transition:       background-color var(--transition-fast),
                    box-shadow       var(--transition-fast),
                    transform        var(--transition-fast);
  /* High-contrast flat fill with heavy border — craft profile */
  background-color: var(--color-fg);
  color:            var(--color-bg);
  border:           2px solid var(--color-fg);
  box-shadow:       none;
}

.btn:hover {
  background-color: var(--color-accent);
  border-color:     var(--color-accent);
  box-shadow:       4px 4px 0 var(--color-fg);
  transform:        translate(-2px, -2px);
}

.btn:active {
  transform:  translate(0px, 0px);
  box-shadow: none;
}

.btn:focus-visible {
  outline:        3px solid var(--color-fg);
  outline-offset: 3px;                     /* heavy focus ring — N18 compliance */
}

/* Ghost — high-contrast outline (craft profile) */
.btn-ghost {
  background-color: transparent;
  color:            var(--color-fg);
  border:           2px solid var(--color-fg);
  box-shadow:       none;
}

.btn-ghost:hover {
  background-color: var(--color-fg);
  color:            var(--color-bg);
  box-shadow:       4px 4px 0 var(--color-accent);
  transform:        translate(-2px, -2px);
}

.btn-ghost:active {
  transform:        translate(0px, 0px);
  box-shadow:       none;
}

/* --- Card --- */

.card {
  background:    var(--color-bg-raised);
  border-radius: var(--radius-card);       /* 0px — hard edge */
  border:        2px solid var(--color-fg);
  box-shadow:    var(--shadow-card);
  padding:       var(--space-6);
  transition:    box-shadow var(--transition-base),
                 transform  var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform:  translate(-2px, -2px);
}

/* --- Badge --- */

.badge {
  display:          inline-flex;
  align-items:      center;
  gap:              var(--space-1);
  padding:          3px 10px;
  border-radius:    var(--radius-pill);    /* pill — only rounded element */
  font-size:        0.6875rem;
  font-weight:      700;
  letter-spacing:   0.08em;
  text-transform:   uppercase;
  background-color: var(--color-fg);
  color:            var(--color-bg);
  border:           none;
}

/* --- Input --- */

.input {
  display:          block;
  width:            100%;
  padding:          10px 14px;
  border-radius:    var(--radius-input);   /* 0px — hard edge */
  font-size:        0.9375rem;
  font-weight:      500;
  background-color: var(--color-bg);
  color:            var(--color-fg);
  border:           2px solid var(--color-fg);
  transition:       border-color var(--transition-fast),
                    box-shadow   var(--transition-fast);
  -webkit-appearance: none;
  appearance:       none;
}

.input::placeholder { color: var(--color-fg-faint); }

.input:focus {
  outline:      none;
  border-color: var(--color-accent);
  box-shadow:   4px 4px 0 var(--color-fg);
}

/* --- 4. Utility Classes --- */

/* Scroll-triggered reveal (honors prefers-reduced-motion) */
.reveal {
  opacity:    0;
  transform:  translateY(12px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
  opacity:   1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.visible {
    opacity:    1;
    transform:  none;
    transition: none;
  }
}

/* Gradient text — stark, high-contrast */
.gradient-text {
  background-image:    linear-gradient(90deg, var(--color-fg) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip:     text;
  -webkit-text-fill-color: transparent;
  color:               transparent;
}

/* Glass — not used in brutalist; falls back to solid with border */
.glass {
  background: var(--color-bg-raised);
  border:     2px solid var(--color-fg);
}

/* Divider — bold solid 2px (craft profile) */
.divider {
  height:     0;
  border:     none;
  border-top: 2px solid var(--color-fg);
  margin:     var(--space-8) 0;
}

/* Icon container — no background, high contrast (craft profile) */
.icon-container {
  display:          inline-flex;
  align-items:      center;
  justify-content:  center;
  width:            var(--icon-feature);   /* oversized: 36px */
  height:           var(--icon-feature);
  color:            var(--color-fg);       /* high contrast — no tinted background */
  flex-shrink:      0;
}