/* 05-brutalist-portfolio — 赵铁柱 · 建筑师 */

:root {
  --bg: #FAFAFA;
  --text: #09090B;
  --accent: #2563EB;
  --border: #09090B;
  --border-width: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  background-color: var(--bg);
  color: var(--text);
}

.font-mono-accent {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
}

/* Brutalist borders — NO smooth transitions */
.brutal-border {
  border: var(--border-width) solid var(--border);
}

.brutal-border-thick {
  border: 5px solid var(--border);
}

.brutal-shadow {
  box-shadow: 6px 6px 0 var(--border);
}

.brutal-shadow-accent {
  box-shadow: 6px 6px 0 var(--accent);
}

/* Nav */
.nav-link {
  padding: 0.5rem 1rem;
  border: var(--border-width) solid transparent;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}
.nav-link:hover {
  border-color: var(--border);
  background: var(--text);
  color: var(--bg);
}
.nav-link.active {
  background: var(--accent);
  color: white;
  border-color: var(--border);
}
.nav-link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

/* Buttons — instant, no transition */
.btn-brutal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border: var(--border-width) solid var(--border);
  background: var(--text);
  color: var(--bg);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
}
.btn-brutal:hover {
  background: var(--accent);
  color: white;
}
.btn-brutal:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.btn-brutal-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border: var(--border-width) solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
}
.btn-brutal-outline:hover {
  background: var(--text);
  color: var(--bg);
}
.btn-brutal-outline:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

/* Project cards */
.project-card {
  border: var(--border-width) solid var(--border);
  background: white;
}
.project-card:hover {
  box-shadow: 8px 8px 0 var(--border);
}
@media (prefers-reduced-motion: reduce) {
  .project-card:hover { box-shadow: none; }
}

/* Image placeholder */
.arch-placeholder {
  aspect-ratio: 16/10;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  background: var(--text);
  color: var(--bg);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* Asymmetric grid offset */
.offset-block {
  margin-top: -3rem;
}
@media (max-width: 768px) {
  .offset-block { margin-top: 0; }
}

/* Form */
.form-brutal {
  border: var(--border-width) solid var(--border);
  padding: 0.875rem 1rem;
  width: 100%;
  background: white;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
}
.form-brutal:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 4px 4px 0 var(--accent);
}

/* Timeline */
.timeline-item {
  border-left: var(--border-width) solid var(--border);
  padding-left: 2rem;
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--border-width));
  top: 0.5rem;
  width: 1rem;
  height: var(--border-width);
  background: var(--accent);
}

/* Tag */
.tag-brutal {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border: 2px solid var(--border);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

/* Strikethrough decorative */
.strike-deco {
  position: relative;
}
.strike-deco::after {
  content: '';
  position: absolute;
  bottom: 0.15em;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent);
}

/* Large display type */
.display-brutal {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.9;
}

/* Grid lines background */
.grid-bg {
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.04;
}