/*
  Componentes reutilizáveis do Gem+: botões, ícones, card de presença
  (mock do Rich Presence do Discord) e cards de jogo. Depende de tokens.css.
*/

/* ---------- Ícones (SVG inline, stroke) ---------- */
.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon--fill {
  fill: currentColor;
  stroke: none;
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--t-base) var(--ease-out),
              border-color var(--t-base) var(--ease-out),
              transform var(--t-fast) var(--ease-out),
              box-shadow var(--t-base) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.btn--primary {
  background-color: var(--brand);
  box-shadow: var(--glow);
}
.btn--primary:hover { background-color: var(--brand-hover); }
.btn--primary:active { background-color: var(--brand-active); }

.btn--ghost {
  background-color: transparent;
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  border-color: var(--text);
  background-color: rgba(255, 255, 255, .05);
}

.btn--sm {
  padding: 9px 18px;
  font-size: 0.875rem;
}

/* ---------- Card de presença (mock do Discord no hero) ---------- */
.presence {
  width: min(380px, 100%);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--surface-2), var(--surface-1));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  animation: presence-float 6s ease-in-out infinite alternate;
}
@keyframes presence-float {
  from { transform: translateY(0); }
  to   { transform: translateY(-14px); }
}

.presence__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--text-2);
  margin-bottom: var(--space-4);
}
.presence__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 1.8s var(--ease-out) infinite;
}
@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(59, 165, 93, .5); }
  100% { box-shadow: 0 0 0 8px rgba(59, 165, 93, 0); }
}

.presence__body {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.presence__art {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid var(--line);
  transition: opacity var(--t-slow) var(--ease-out);
}
.presence__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}
.presence__game {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity var(--t-slow) var(--ease-out);
}
.presence__state {
  font-size: 0.8125rem;
  color: var(--text-2);
}

.presence.is-switching .presence__art,
.presence.is-switching .presence__game {
  opacity: 0;
}

.presence__session-head {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-2);
}
.presence__session-head span:last-child { color: var(--text-2); }

.presence__bar {
  height: 4px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .07);
  overflow: hidden;
}
.presence__bar span {
  display: block;
  height: 100%;
  width: 28%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--brand), var(--brand-hover));
  transition: width 1s linear;
}

.presence__footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-3);
}

/* ---------- Card de jogo (biblioteca) ---------- */
.game { margin: 0; }

.game__cover {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--line);
  transition: border-color var(--t-base) var(--ease-out),
              transform var(--t-base) var(--ease-out);
}
.game__cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow) var(--ease-out);
}
.game:hover .game__cover {
  border-color: var(--brand-line);
  transform: translateY(-4px);
}
.game:hover .game__cover img { transform: scale(1.05); }

.game__name {
  margin-top: var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--t-base) var(--ease-out);
}
.game:hover .game__name { color: var(--text); }