/* =========================================================
   COMPONENTS — buttons, chips, cards, accordion, loop, form
   ========================================================= */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.btn .icon { transition: transform var(--dur-fast) var(--ease); }

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 8px 30px -10px rgba(var(--accent-rgb), 0.55);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--on-accent);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px -10px rgba(var(--accent-rgb), 0.7);
}
.btn-primary:hover .icon { transform: translateX(3px); }

.btn-ghost {
  background: transparent;
  color: var(--heading);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  color: var(--heading);
  border-color: var(--accent-bright);
  background: rgba(var(--accent-rgb), 0.06);
  transform: translateY(-2px);
}

.btn-link {
  color: var(--text-muted);
  padding-inline: 12px;
}
.btn-link:hover { color: var(--heading); }

.btn-muted {
  background: var(--surface-2);
  color: var(--text-muted);
  cursor: default;
  font-weight: 500;
}

.btn-sm { min-height: 38px; padding: 0 16px; font-size: 0.88rem; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.icon-btn:hover { border-color: var(--accent-bright); color: var(--heading); }

/* Theme toggle shows the icon for the theme you'd switch TO */
.icon-sun { display: block; }
.icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

/* ---------- Hero bits ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  background: rgba(var(--accent-rgb), 0.04);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.6);
}
.text-gradient {
  background: linear-gradient(100deg, var(--accent-bright), var(--accent) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Filter chips ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.chip {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.chip:hover { color: var(--heading); border-color: var(--accent-bright); }
.chip.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

/* ---------- Project cards (accordion) ---------- */
.project-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition:
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.project-card:hover {
  border-color: rgba(var(--accent-rgb), 0.45);
  transform: translateY(-4px);
  box-shadow: var(--shadow), 0 0 0 1px rgba(var(--accent-rgb), 0.08);
}
.project-card[hidden] { display: none; }

.project-summary {
  all: unset;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  height: 100%;
}
.project-summary:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: -2px;
  border-radius: var(--radius);
}

.project-thumb {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease), filter var(--dur) var(--ease);
}
.project-card:hover .project-thumb img { transform: scale(1.04); }

.project-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 56px 24px 22px;
}
.project-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-bright);
}
.project-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.project-short { color: var(--text-muted); font-size: 0.97rem; line-height: 1.6; }

.project-chevron {
  position: absolute;
  right: 20px;
  bottom: 26px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.project-chevron::before,
.project-chevron::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 1.5px;
  background: var(--text);
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease);
}
.project-chevron::after { transform: translate(-50%, -50%) rotate(90deg); }
.project-card:hover .project-chevron { border-color: var(--accent-bright); }

/* Panel: collapsed by default, animates open via grid rows */
.project-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-slow) var(--ease);
}
.project-panel-inner {
  overflow: hidden;
  min-height: 0;
  padding: 0 22px;
  opacity: 0;
  transition: opacity var(--dur) var(--ease), padding var(--dur-slow) var(--ease);
}
.project-panel-inner > p { color: var(--text); }

/* Open state: card spans the full row, summary left, details right */
.project-card.is-open {
  grid-column: 1 / -1;
  border-color: rgba(var(--accent-rgb), 0.5);
}
.project-card.is-open:hover { transform: none; }
.project-card.is-open .project-panel { grid-template-rows: 1fr; }
.project-card.is-open .project-panel-inner {
  opacity: 1;
  padding: 4px 22px 26px;
  transition-delay: 80ms;
}
.project-card.is-open .project-chevron {
  background: var(--accent);
  border-color: var(--accent);
  transform: rotate(180deg);
}
.project-card.is-open .project-chevron::before,
.project-card.is-open .project-chevron::after { background: var(--on-accent); }
.project-card.is-open .project-chevron::after { transform: translate(-50%, -50%) rotate(0deg); }

@media (min-width: 860px) {
  .project-card.is-open { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .project-card.is-open .project-summary { border-right: 1px solid var(--border); }
  .project-card.is-open .project-panel-inner { padding: 30px 34px; }
}

.project-points {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 0 0 22px;
}
.project-points li {
  position: relative;
  padding-left: 22px;
  font-size: 0.97rem;
}
.project-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 8px;
  height: 2px;
  background: var(--accent-bright);
}

.tech-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}
.tech-list li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.22);
  color: var(--heading);
}
.project-links { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- Skill cards ---------- */
.skill-card {
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.skill-card:hover { border-color: rgba(var(--accent-rgb), 0.45); transform: translateY(-4px); }
.skill-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  margin-bottom: 20px;
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent-bright);
  font-size: 1.1rem;
}
.skill-card ul { list-style: none; display: grid; gap: 6px; }
.skill-card li { color: var(--text-muted); font-size: 0.95rem; }

/* ---------- Logo loop (marquee) ---------- */
.logo-loop {
  --loop-gap: 56px;
  position: relative;
  display: flex;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.logo-loop-track {
  list-style: none;
  display: flex;
  flex: none;
  gap: var(--loop-gap);
  padding-right: var(--loop-gap);
  min-width: max-content;
}
.logo-loop-track li {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-muted);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: var(--loop-gap);
  transition: color var(--dur-fast) var(--ease);
}
.logo-loop-track li::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.5);
  margin-right: calc(var(--loop-gap) * -1);
  transform: translateX(calc(var(--loop-gap) / -2));
}
.logo-loop-track li:hover { color: var(--heading); }

/* ---------- Posts ---------- */
.post-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.post-card:hover { border-color: rgba(var(--accent-rgb), 0.45); transform: translateY(-4px); }
.post-card h3 { font-size: 1.15rem; line-height: 1.35; }
.post-card h3 a { color: var(--heading); }
/* Whole card is clickable via the heading link */
.post-card h3 a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.post-card > p:last-child { color: var(--text-muted); margin: 0; font-size: 0.97rem; }
.post-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.post-badge {
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent-bright);
}

/* ---------- Contact ---------- */
.contact-links {
  list-style: none;
  display: grid;
  gap: 4px;
  margin-top: 36px;
}
.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  color: var(--heading);
  font-weight: 500;
}
.contact-links a .icon { color: var(--accent-bright); }
.contact-links a:hover { color: var(--accent-bright); }

.contact-form {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 4vw, 36px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.field { display: grid; gap: 8px; }
.field label { font-size: 0.9rem; font-weight: 600; color: var(--heading); }
.field input,
.field textarea {
  width: 100%;
  padding: 13px 14px;
  font: inherit;
  font-size: 1rem;
  color: var(--heading);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-bright);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.2);
}
.field [aria-invalid="true"] { border-color: #f87171; }
.contact-form .btn { justify-self: start; }
.form-status { margin: 0; min-height: 1.5em; font-size: 0.92rem; color: var(--text-muted); }
.form-status.is-error { color: #f87171; }
.form-status.is-success { color: var(--accent-bright); }

/* ---------- Footer social ---------- */
.social-links { list-style: none; display: flex; gap: 8px; }
.social-links a {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--dur-fast) var(--ease);
}
.social-links a:hover { color: var(--heading); border-color: var(--accent-bright); transform: translateY(-2px); }