/* =========================================================
   jvsdo.com / video-compressor — card único, monocromático
   ========================================================= */

:root {
  --ink:         #1a1a1c;
  --ink-soft:    #232326;
  --ink-mid:     #2e2e31;
  --paper:       #fafafa;
  --paper-dim:   #cfcfd2;
  --muted:       #8a8a8f;
  --line:        rgba(250, 250, 250, 0.14);
  --line-strong: rgba(250, 250, 250, 0.28);
  --accent:      #ededef;

  --f-serif: 'Playfair Display', 'Times New Roman', serif;
  --f-sans:  'Inter', system-ui, -apple-system, sans-serif;

  --fs-micro: 0.75rem;
  --fs-small: 0.875rem;
  --fs-body:  1rem;
  --fs-lead:  1.25rem;

  --sp-1: .5rem;  --sp-2: 1rem;   --sp-3: 1.5rem; --sp-4: 2rem;
  --sp-5: 3rem;

  --t-fast: 180ms cubic-bezier(.2,.7,.2,1);
  --t-base: 320ms cubic-bezier(.2,.7,.2,1);

  --page-pad-x: clamp(1.25rem, 4vw, 2rem);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background: var(--ink);
}

body {
  font-family: var(--f-sans);
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--paper);
  background: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a   { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
em  { font-style: italic; color: var(--accent); font-weight: inherit; }

::selection { background: var(--paper); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--paper);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem var(--page-pad-x);
  background: rgba(26, 26, 28, 0.7);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: .55rem; }
.brand-name {
  font-family: var(--f-serif); font-style: italic; font-weight: 400;
  font-size: 1.2rem; letter-spacing: -0.01em;
  color: var(--paper);
}
.brand svg { display: block; }
.header-nav { display: flex; align-items: center; gap: .4rem; }
.nav-link {
  font-size: var(--fs-small); color: var(--paper-dim);
  transition: color var(--t-fast);
  display: inline-flex; align-items: center; gap: .35rem;
}
.nav-link:hover { color: var(--paper); }

/* ---------- Footer ---------- */
.footer {
  padding: var(--sp-4) 0 var(--sp-3);
  border-top: 1px solid var(--line);
  font-size: var(--fs-micro);
  color: var(--muted);
  text-align: center;
  letter-spacing: .04em;
}
.footer a {
  color: var(--paper-dim);
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.footer a:hover { color: var(--paper); border-bottom-color: var(--line-strong); }

/* ---------- Layout ---------- */
.stage-wrap {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--sp-5) var(--page-pad-x);
  display: flex;
  align-items: center;
  justify-content: center;
}
.stage-wrap > .tool-card { width: 100%; }

/* ---------- Card ---------- */
.tool-card {
  position: relative;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  overflow: hidden;
}
.tool-card__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--line);
}
.tool-card__eyebrow {
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
}
.tool-card__status {
  font-size: var(--fs-micro);
  color: var(--paper-dim);
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.tool-card__status .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--paper);
  box-shadow: 0 0 0 3px rgba(250,250,250,.12);
}

/* ---------- Field ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.field-label {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--paper);
}
.field-hint {
  font-size: var(--fs-small);
  color: var(--muted);
}

/* ---------- Drop zone ---------- */
.dropzone {
  position: relative;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  background:
    repeating-linear-gradient(135deg, rgba(250,250,250,0.012) 0 12px, transparent 12px 24px),
    var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .65rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.dropzone:hover,
.dropzone.is-dragover {
  border-color: var(--paper);
  background: rgba(250,250,250,.03);
}
.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.dropzone__icon {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: rgba(250,250,250,.04);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--paper);
}
.dropzone__title {
  font-size: var(--fs-body);
  color: var(--paper);
}
.dropzone__title strong { font-weight: 600; }
.dropzone__meta {
  font-size: var(--fs-micro);
  color: var(--muted);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.dropzone.is-filled .dropzone__icon {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}

/* ---------- Slider ---------- */
.slider-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-3);
  align-items: center;
}
.slider-scale {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: .35rem;
}
input[type="range"].crf {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--paper) var(--_p,50%), var(--ink-mid) var(--_p,50%));
  outline: none;
}
input[type="range"].crf::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--paper);
  border: 4px solid var(--ink);
  box-shadow: 0 0 0 1px var(--paper);
  cursor: grab;
}
input[type="range"].crf:active::-webkit-slider-thumb { cursor: grabbing; }
input[type="range"].crf::-moz-range-thumb {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--paper);
  border: 4px solid var(--ink);
  box-shadow: 0 0 0 1px var(--paper);
  cursor: grab;
}
.crf-output {
  min-width: 72px;
  padding: .55rem .9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--ink);
  font-family: var(--f-serif);
  font-size: 1.25rem;
  text-align: center;
  color: var(--paper);
}

/* ---------- Progress + estágios ---------- */
.progress {
  position: relative;
  height: 3px;
  border-radius: 999px;
  background: var(--ink-mid);
  overflow: hidden;
}
.progress__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: var(--paper);
  transition: width .2s linear;
}
.progress.is-indeterminate .progress__fill {
  width: 30%;
  animation: indet 1.2s infinite;
}
@keyframes indet {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(420%); }
}
.progress-row {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-micro);
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.progress-meta strong { color: var(--paper); font-weight: 500; letter-spacing: .02em; text-transform: none; }

.stage {
  display: flex;
  gap: .4rem;
  font-size: var(--fs-micro);
  letter-spacing: .16em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.stage span {
  padding: .4rem .75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}
.stage span.is-active {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}
.stage span.is-done {
  color: var(--paper);
  border-color: var(--line-strong);
}

/* ---------- Resultado ---------- */
.result {
  display: none;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-3);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(250,250,250,.02);
  animation: rise .35s var(--t-base);
}
.result.is-visible { display: flex; }
@keyframes rise {
  from { opacity: 0; transform: translateY(8px);}
  to   { opacity: 1; transform: translateY(0);}
}

.result__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
}
.result__stat {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: .6rem 0;
}
.result__stat-label {
  font-size: var(--fs-micro);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}
.result__stat-value {
  font-family: var(--f-serif);
  font-size: 1.4rem;
  color: var(--paper);
}
.result__actions {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
  align-items: center;
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .95rem 1.4rem;
  border-radius: 999px;
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .01em;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast), border-color var(--t-fast);
  border: 1px solid transparent;
  font-family: var(--f-sans);
}
.btn-primary {
  background: var(--paper);
  color: var(--ink);
}
.btn-primary:hover { transform: translateY(-1px); background: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--paper-dim);
  border: 1px solid var(--line);
  padding: .7rem 1.1rem;
  font-size: var(--fs-small);
}
.btn-ghost:hover { color: var(--paper); border-color: var(--line-strong); }
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: .55;
  cursor: not-allowed;
  transform: none !important;
}

/* ---------- Alerta ---------- */
.alert {
  display: none;
  padding: .85rem 1rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--paper);
  border-radius: var(--radius-sm);
  background: rgba(250,250,250,.04);
  color: var(--paper-dim);
  font-size: var(--fs-small);
}
.alert.is-visible { display: block; }

/* ---------- Responsivo ---------- */
@media (max-width: 520px) {
  .btn { padding: .8rem 1.15rem; }
  .result__stats { grid-template-columns: 1fr 1fr; }
  .nav-link span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}