/* =========================================================================
   Acervo Tec — galeria editorial minimalista
   Identidade: Space Grotesk (título) + DM Sans (texto)
   Cores: #0099FF (acento) · #000F19 (escuro) · #FFFFFF (claro)
   Layout: barra fixa discreta · filtros por álbum · grid masonry · lightbox
   ========================================================================= */

/* ---- Tokens (tema claro = base) ---- */
:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f0f5fa;
  --fg: #000f19;
  --muted: #566875;
  --border: #dde7ef;
  --accent: #0099ff;
  --accent-fg: #ffffff;
  --scrim: rgba(0, 15, 25, 0.84);
  --shadow: 0 1px 2px rgba(0, 15, 25, 0.06), 0 10px 26px rgba(0, 15, 25, 0.07);
  --ring: color-mix(in srgb, var(--accent) 60%, transparent);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000f19;
    --surface: #061826;
    --surface-2: #0c2436;
    --fg: #ffffff;
    --muted: #8ba2b3;
    --border: #163040;
    --accent: #0099ff;
    --accent-fg: #ffffff;
    --scrim: rgba(0, 6, 11, 0.9);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 12px 32px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #000f19;
  --surface: #061826;
  --surface-2: #0c2436;
  --fg: #ffffff;
  --muted: #8ba2b3;
  --border: #163040;
  --accent: #0099ff;
  --accent-fg: #ffffff;
  --scrim: rgba(0, 6, 11, 0.9);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 12px 32px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

/* ---- Base ---- */
* { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; }
[hidden] { display: none !important; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 6px; }

.container {
  width: 100%;
  max-width: 1320px;
  margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

/* ---- Cabeçalho ---- */
.app-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--border);
}
.app-header .container { display: flex; align-items: center; gap: 18px; padding-block: 14px; flex-wrap: wrap; }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg); flex: 0 0 auto; }
.brand .logo { width: 26px; height: 26px; color: var(--accent); }
.brand .name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.26rem;
  letter-spacing: -0.02em;
}
.brand .name b { color: var(--accent); font-weight: 700; }

.search { position: relative; flex: 1 1 260px; min-width: 0; max-width: 520px; }
.search svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--muted); pointer-events: none; }
.search input {
  width: 100%;
  padding: 11px 14px 11px 42px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--fg);
  font: inherit;
}
.search input::placeholder { color: var(--muted); }
.search input:focus-visible { outline-offset: 0; border-color: var(--accent); }

.header-actions { margin-left: auto; display: inline-flex; gap: 8px; }
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s;
}
.icon-btn:hover { background: var(--surface-2); }
.icon-btn svg { width: 19px; height: 19px; }

/* ---- Barra de filtros ---- */
.toolbar .container { display: flex; align-items: center; gap: 16px; padding-block: 20px 8px; flex-wrap: wrap; }
.albums { display: flex; gap: 8px; flex-wrap: wrap; flex: 1 1 auto; min-width: 0; }
.chip {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 7px 15px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.18s, background 0.18s, border-color 0.18s;
}
.chip:hover { color: var(--fg); border-color: color-mix(in srgb, var(--fg) 24%, var(--border)); }
.chip.active { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.count { flex: 0 0 auto; color: var(--muted); font-size: 0.86rem; font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }

/* segunda linha: sub-álbuns (ex: anos da Marcha) */
.subbar { display: flex; align-items: center; gap: 10px; padding-block: 4px 2px; flex-wrap: wrap; }
.sub-prefix {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.subalbums { display: flex; gap: 8px; flex-wrap: wrap; }
.sub-chip { padding: 5px 13px; font-size: 0.82rem; }
.sub-chip.active {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Grid uniforme (cards) ---- */
main .container { padding-block: 18px 56px; }
/* 4 colunas fixas, cards em retrato (estilo Netflix) */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px 18px; }

.card { display: flex; flex-direction: column; gap: 10px; min-width: 0; }

.card-img {
  padding: 0;
  border: 0;
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface-2);
  box-shadow: var(--shadow);
  cursor: zoom-in;
  display: block;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.card-img img.loaded { opacity: 1; }
.card-img:hover img { transform: scale(1.05); }

.card-body { display: flex; flex-direction: column; gap: 8px; }
.card-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.25;
  color: var(--fg);
  text-wrap: balance;
}
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.card-tags .tag {
  font-size: 0.7rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

/* ---- Estado vazio ---- */
.empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; padding: 80px 20px; color: var(--muted); }
.empty svg { width: 54px; height: 54px; color: var(--border); }
.empty h2 { margin: 6px 0 0; font-family: var(--font-display); font-weight: 600; color: var(--fg); font-size: 1.2rem; }
.empty p { margin: 0; max-width: 42ch; }
.empty code { background: var(--surface-2); padding: 1px 6px; border-radius: 6px; }

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(20px, env(safe-area-inset-top, 0px)) max(20px, env(safe-area-inset-right, 0px))
           max(20px, env(safe-area-inset-bottom, 0px)) max(20px, env(safe-area-inset-left, 0px));
  background: var(--scrim);
  backdrop-filter: blur(8px);
  animation: fade 0.2s ease;
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.lb-stage { margin: 0; max-width: min(1120px, 100%); max-height: 100%; display: flex; flex-direction: column; gap: 14px; }
.lb-img { display: block; margin: auto; max-width: 100%; max-height: 76vh; object-fit: contain; border-radius: 10px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5); }
.lb-bar { display: flex; align-items: center; justify-content: space-between; gap: 18px; color: #fff; flex-wrap: wrap; }
.lb-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.lb-title { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; }
.lb-album { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.75; }

/* botão de download em alta */
.lb-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: 999px;
  white-space: nowrap;
  transition: filter 0.18s;
}
.lb-download:hover { filter: brightness(1.08); }
.lb-download svg { width: 17px; height: 17px; }

.lb-close, .lb-nav {
  position: fixed;
  z-index: 61;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(10, 20, 28, 0.5);
  color: #fff;
  cursor: pointer;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.lb-close { top: max(18px, env(safe-area-inset-top, 0px)); right: max(18px, env(safe-area-inset-right, 0px)); width: 44px; height: 44px; font-size: 1.1rem; }
.lb-nav { top: 50%; transform: translateY(-50%); width: 50px; height: 50px; font-size: 1.8rem; line-height: 1; }
.lb-prev { left: max(14px, env(safe-area-inset-left, 0px)); }
.lb-next { right: max(14px, env(safe-area-inset-right, 0px)); }
.lb-close:hover, .lb-nav:hover { background: rgba(20, 34, 44, 0.75); }

/* ---- Rodapé ---- */
.app-footer { border-top: 1px solid var(--border); }
.app-footer .container { padding-block: 22px; color: var(--muted); font-size: 0.82rem; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.app-footer a { color: var(--accent); text-decoration: none; }

/* ---- Responsivo ---- */
@media (max-width: 980px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 560px) {
  .app-header .container { gap: 12px; }
  .brand .name { font-size: 1.14rem; }
  .search { order: 3; flex-basis: 100%; max-width: none; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  .card-img { border-radius: 12px; }
  .lb-nav { width: 42px; height: 42px; font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}