/* ==========================================================================
   04. Components
   --------------------------------------------------------------------------
   Reusable UI pieces: buttons, badges, cards, chips, links, form basics.
   Every component consumes tokens only — no hardcoded values.
   ========================================================================== */

/* -- Utilities ------------------------------------------------------------------- */

/* Visually hidden, still available to screen readers. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.noscript-note,
.fatal-note {
  margin: var(--space-6);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* -- Buttons ------------------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 500;
  line-height: 1.2;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 700;
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  box-shadow: var(--shadow-sm);
}

.btn--ghost {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover {
  background-color: var(--color-surface-2);
  border-color: var(--color-text-faint);
}

.btn--lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-lg);
}

/* -- Icon buttons (header: theme, menu) ---------------------------------------------- */

.icon-btn {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  border: 1px solid transparent;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.icon-btn:hover {
  color: var(--color-text);
  background-color: var(--color-surface-2);
}

.icon-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

.lang-btn {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.lang-btn:hover {
  color: var(--color-text);
  border-color: var(--color-text-faint);
}

.nav-toggle {
  display: grid;
}

@media (min-width: 60rem) {
  .nav-toggle {
    display: none;
  }
}

/* -- Status dot and badges ------------------------------------------------------------- */

.status-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  background-color: var(--color-success);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2em 0.7em;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.badge--live {
  color: var(--color-success);
  border-color: color-mix(in srgb, var(--color-success) 35%, transparent);
  background-color: var(--color-success-soft);
}

.badge--inProgress {
  color: var(--color-warning);
  border-color: color-mix(in srgb, var(--color-warning) 35%, transparent);
  background-color: var(--color-warning-soft);
}

/* -- Section heads ------------------------------------------------------------------------ */

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-6);
}

.section-head__kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.section-head h2 {
  font-size: var(--text-3xl);
}

.section-head__link {
  font-size: var(--text-sm);
  font-weight: 600;
  padding-bottom: var(--space-1);
}

/* -- Direction-aware arrow links ------------------------------------------------------------ */

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-weight: 600;
}

.link-arrow__icon {
  transition: transform var(--dur-base) var(--ease-out);
}

.link-arrow:hover .link-arrow__icon {
  transform: translateX(0.2em);
}

[dir="rtl"] .link-arrow:hover .link-arrow__icon {
  transform: translateX(-0.2em);
}

/* -- Cards ------------------------------------------------------------------------------------ */

.card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

@media (min-width: 48rem) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Portfolio cards: one balanced card system shared by the home page
   (project-card) and the projects index (project-row). Every cover keeps
   the same 3/2 ratio no matter the project type — Android, Web, Games or
   WordPress. */
.project-card,
.project-row {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

.project-card:hover,
.project-row:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

/* Media area: fixed ratio so every card's image region has the same size. */
.project-card__media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface-2);
}

.project-card__cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.project-card__cover--placeholder {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-faint);
  background-image: linear-gradient(135deg, var(--color-surface-2), var(--color-surface));
}

.project-card__body,
.project-row__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  flex: 1;
  min-width: 0;
}

.project-card__head,
.project-row__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.project-row__title {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  min-width: 0;
}

.project-row__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.project-card h3 {
  font-size: var(--text-xl);
}

.project-row h2 {
  font-size: var(--text-xl);
}

.project-card h3 a,
.project-row h2 a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}

.project-card h3 a:hover,
.project-row h2 a:hover {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
}

.project-card__summary,
.project-row__summary {
  color: var(--color-text-muted);
  min-width: 0;
}

.project-card__meta,
.project-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.project-card__meta .project-card__type,
.project-row__meta .project-card__type {
  color: var(--color-accent);
  font-weight: 600;
}

.project-card__body .link-arrow,
.project-row__body .link-arrow {
  margin-top: auto;
  padding-top: var(--space-1);
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
}

.tech-list li {
  padding: 0.25em 0.7em;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.article-list {
  display: grid;
  gap: var(--space-4);
}

.article-card {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

.article-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.article-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.article-card h3 a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}

.article-card h3 a:hover {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.article-card__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}

.article-card__summary {
  color: var(--color-text-muted);
}

/* -- Stats -------------------------------------------------------------------------------------- */

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.stat {
  display: grid;
  gap: var(--space-1);
}

.stat__value {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
}

.stat__label {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* -- Contact strip ------------------------------------------------------------------------------- */

.contact-strip {
  display: grid;
  gap: var(--space-5);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

.contact-strip:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.contact-strip__lead {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
}

.contact-strip__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

@media (min-width: 48rem) {
  .contact-strip__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}

.contact-item:hover {
  border-color: var(--color-border-strong);
  background-color: var(--color-surface-2);
  text-decoration: none;
}

.contact-item__label {
  color: var(--color-text-faint);
  font-size: var(--text-sm);
}

.contact-item__value {
  font-weight: 600;
  text-align: end;
  overflow-wrap: anywhere;
}

.contact-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* ==========================================================================
   06. Touch UX
   --------------------------------------------------------------------------
   Native-app feel on touch devices: comfortable tap targets (≈44px),
   whole-card tap areas, and immediate press feedback. Scoped to coarse
   pointers so desktop keeps precise text select targets and hover cues.
   Reduced-motion (base.css) already collapses all transitions for us.
   ========================================================================== */

@media (hover: none) and (pointer: coarse) {
  /* Touch targets at the native ~44px floor. */
  .icon-btn {
    width: 2.75rem;
    height: 2.75rem;
  }

  .lang-btn,
  .filter-btn {
    min-height: 2.75rem;
  }

  .btn--lg {
    min-height: 3rem;
  }

  /* Whole-card tap targets: the title link fills the card body. */
  .project-card,
  .article-card,
  .project-row,
  .blog-post {
    position: relative;
  }

  .project-card h3 a::after,
  .article-card h3 a::after,
  .project-row h2 a::after,
  .blog-post__title a::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
  }

  /* Immediate press feedback on active controls and full-card taps. */
  .btn:active,
  .icon-btn:active,
  .lang-btn:active,
  .filter-btn:active,
  .project-card:active,
  .article-card:active,
  .project-row:active,
  .blog-post:active {
    transform: translateY(1px);
  }

  .btn:active,
  .icon-btn:active,
  .lang-btn:active,
  .filter-btn:active {
    filter: brightness(0.97);
  }
}