/* ============================================================
   DocSync — CSS
   Tema: Dark premium (ref. Imagica + DeFi Asset Defense)
   Fundo: blobs azul-roxo animados sobre preto profundo
   Cards: glassmorphism com bordas sutis
   Botões: pill-shaped
   ============================================================ */

/* ── Reset e base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #08090e;
  --surface:     rgba(255,255,255,0.04);
  --surface-md:  rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.08);
  --border-md:   rgba(255,255,255,0.14);

  --blue:        #3b82f6;
  --blue-glow:   rgba(59,130,246,0.35);
  --purple:      #8b5cf6;
  --purple-glow: rgba(139,92,246,0.3);
  --teal:        #14b8a6;
  --teal-glow:   rgba(20,184,166,0.25);
  --green:       #22c55e;

  --text:        #f1f5f9;
  --text-muted:  #64748b;
  --text-dim:    #94a3b8;

  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --radius-xl:   32px;
  --radius-pill: 9999px;

  --font:        'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:   'JetBrains Mono', 'Fira Code', monospace;

  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input, select, textarea { font-family: var(--font); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ============================================================
   FUNDO: blobs animados estilo Imagica
   ============================================================ */
.scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* Blob 1 — azul elétrico grande (centro-esquerdo) */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0;
  animation: blobFadeIn 1.8s var(--ease-out) forwards;
}

.blob--1 {
  width: 700px;
  height: 500px;
  top: -100px;
  left: -150px;
  background: radial-gradient(ellipse at center,
    rgba(59, 92, 246, 0.55) 0%,
    rgba(59, 92, 246, 0.25) 40%,
    transparent 70%
  );
  animation-delay: 0s;
  animation: blobFadeIn 1.8s var(--ease-out) forwards, blobFloat1 18s ease-in-out infinite 1.8s;
}

.blob--2 {
  width: 600px;
  height: 450px;
  top: 20%;
  right: -100px;
  background: radial-gradient(ellipse at center,
    rgba(139, 60, 246, 0.45) 0%,
    rgba(100, 40, 200, 0.2) 45%,
    transparent 70%
  );
  animation-delay: 0.3s;
  animation: blobFadeIn 1.8s 0.3s var(--ease-out) forwards, blobFloat2 22s ease-in-out infinite 2s;
}

.blob--3 {
  width: 500px;
  height: 400px;
  bottom: 5%;
  left: 25%;
  background: radial-gradient(ellipse at center,
    rgba(20, 100, 200, 0.35) 0%,
    rgba(80, 30, 180, 0.15) 50%,
    transparent 70%
  );
  animation-delay: 0.6s;
  animation: blobFadeIn 1.8s 0.6s var(--ease-out) forwards, blobFloat3 26s ease-in-out infinite 2.4s;
}

@keyframes blobFadeIn {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes blobFloat1 {
  0%,100% { transform: translate(0,0) scale(1); }
  33%  { transform: translate(60px, 40px) scale(1.08); }
  66%  { transform: translate(-30px, 60px) scale(0.95); }
}

@keyframes blobFloat2 {
  0%,100% { transform: translate(0,0) scale(1) rotate(0deg); }
  40%  { transform: translate(-50px, -30px) scale(1.1) rotate(10deg); }
  70%  { transform: translate(30px, 50px) scale(0.92) rotate(-5deg); }
}

@keyframes blobFloat3 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%  { transform: translate(-40px, -50px) scale(1.12); }
}

/* Grid overlay sutil (imagem 2) */
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

/* ============================================================
   LAYOUT BASE
   ============================================================ */
main, header, footer { position: relative; z-index: 1; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  background: rgba(8,9,14,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: #fff;
}

.nav__logo-img {
  height: 34px;
  width: 34px;
  object-fit: contain;
  /* Inverte o fundo branco para transparente no tema escuro */
  filter: invert(1) brightness(1.8) contrast(1.2);
  transition: filter 0.3s, opacity 0.3s;
}

.nav__logo:hover .nav__logo-img {
  filter: invert(1) brightness(2.2) contrast(1.3);
  opacity: 0.9;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.nav__links a {
  transition: color 0.2s;
}
.nav__links a:hover { color: #fff; }

.nav__actions { display: flex; gap: 10px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
}

/* Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-md);
  background: rgba(255,255,255,0.05);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  margin-bottom: 32px;
  animation: fadeUp 0.8s var(--ease-out) 0.2s both;
}

.hero-badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px var(--blue);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%,100% { opacity: 1; box-shadow: 0 0 6px var(--blue); }
  50%      { opacity: 0.5; box-shadow: 0 0 16px var(--blue); }
}

/* Título hero */
.hero-title {
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: #fff;
  margin-bottom: 24px;
  animation: fadeUp 0.9s var(--ease-out) 0.35s both;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #818cf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  max-width: 560px;
  font-size: 1.05rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 40px;
  animation: fadeUp 0.9s var(--ease-out) 0.5s both;
}

/* CTAs */
.hero-ctas {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 60px;
  animation: fadeUp 0.9s var(--ease-out) 0.65s both;
}

/* ============================================================
   BOTÕES PILL
   ============================================================ */
.btn-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 600;
  transition: all 0.25s var(--ease-out);
  white-space: nowrap;
  letter-spacing: -0.01em;
  cursor: pointer;
}

.btn-pill--primary {
  background: linear-gradient(135deg, #3b5bf6 0%, #7c3aed 100%);
  color: #fff;
  border: none;
  box-shadow: 0 0 30px rgba(99,102,241,0.35), 0 2px 8px rgba(0,0,0,0.4);
}
.btn-pill--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 45px rgba(99,102,241,0.55), 0 4px 16px rgba(0,0,0,0.5);
}
.btn-pill--primary:active { transform: translateY(0); }

.btn-pill--outline {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border-md);
}
.btn-pill--outline:hover {
  background: var(--surface);
  color: #fff;
  border-color: rgba(255,255,255,0.25);
}

.btn-pill--ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-dim);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.btn-pill--ghost:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: var(--border-md);
}

.btn-pill--sm { padding: 8px 18px; font-size: 0.82rem; }
.btn-pill--lg { padding: 14px 32px; font-size: 1rem; }
.btn-pill--full { width: 100%; justify-content: center; }

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: fadeIn 1s 1.5s both;
}

.scroll-hint__arrow { animation: bounceDown 2s ease-in-out infinite; }

@keyframes bounceDown {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(6px); }
}

/* ============================================================
   TOOL SECTION — card arredondado estilo imagem 2
   ============================================================ */
.tool-section {
  padding: 80px 24px 120px;
  max-width: 640px;
  margin: 0 auto;
}

.tool-card {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-md);
  background: rgba(12,14,22,0.75);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04) inset,
    0 40px 120px rgba(0,0,0,0.6),
    0 0 80px rgba(59,92,246,0.08);
}

/* Brilho interno superior (como imagem 2) */
.tool-card__glow {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 200px;
  background: radial-gradient(ellipse at center,
    rgba(59,92,246,0.18) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.tool-card__inner { padding: 40px; }

.tool-card__header { margin-bottom: 32px; }

.tool-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.tool-card__title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 8px;
}

.tool-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Pulse dot ── */
.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34,197,94,0.4);
  animation: pulseRing 2s ease-out infinite;
}

@keyframes pulseRing {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  70%  { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* ============================================================
   FORMULÁRIO
   ============================================================ */
.scrape-form { display: flex; flex-direction: column; gap: 24px; }

/* Field */
.field { display: flex; flex-direction: column; gap: 8px; }

.field__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.field__input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.field__icon {
  position: absolute;
  left: 16px;
  color: var(--text-muted);
  pointer-events: none;
  flex-shrink: 0;
}

.field__input {
  width: 100%;
  padding: 14px 16px 14px 46px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-md);
  background: rgba(255,255,255,0.04);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  font-family: var(--font-mono);
}

.field__input::placeholder { color: var(--text-muted); font-family: var(--font); }

.field__input:focus {
  border-color: rgba(99,102,241,0.6);
  background: rgba(255,255,255,0.07);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.field__input.error {
  border-color: rgba(239,68,68,0.6);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.12);
}

/* Aviso de URL */
.url-warning {
  font-size: 0.78rem;
  color: #fbbf24;
  background: rgba(251,191,36,0.08);
  border: 1px solid rgba(251,191,36,0.2);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-top: 6px;
  line-height: 1.5;
}

/* ── Opções avançadas ── */
.adv { border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }

.adv__toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 0.84rem;
  color: var(--text-dim);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.2s;
}
.adv__toggle::-webkit-details-marker { display: none; }
.adv__toggle:hover { background: var(--surface); }

.adv__chevron { margin-left: auto; transition: transform 0.25s; }
details[open] .adv__chevron { transform: rotate(180deg); }

.adv__body { padding: 16px; border-top: 1px solid var(--border); }

.adv__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.adv__field { display: flex; flex-direction: column; gap: 5px; }

.adv__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.adv__select {
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-md);
  background: rgba(255,255,255,0.04);
  color: var(--text-dim);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='M5 8l5 5 5-5' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}
.adv__select:focus { border-color: rgba(99,102,241,0.5); }
.adv__select option { background: #141820; color: #fff; }

.adv__field--checkbox { justify-content: flex-end; }

.adv__hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

.adv__check-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
  margin-top: auto;
}

.adv__checkbox { display: none; }

.adv__check-box {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  border: 1px solid var(--border-md);
  background: rgba(255,255,255,0.04);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.adv__checkbox:checked + .adv__check-box {
  background: linear-gradient(135deg, #3b5bf6, #7c3aed);
  border-color: transparent;
}

.adv__checkbox:checked + .adv__check-box::after {
  content: '';
  width: 10px;
  height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
  display: block;
}

/* ── Guia de níveis ── */
.guide-box {
  background: rgba(59,130,246,0.05);
  border: 1px solid rgba(59,130,246,0.18);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guide-box__header {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #93c5fd;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.guide-levels {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.guide-level {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.guide-level__badge {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: 1px;
}

.guide-level__badge--0 { background: rgba(100,116,139,0.25); color: #94a3b8; }
.guide-level__badge--1 { background: rgba(59,130,246,0.2);  color: #60a5fa; }
.guide-level__badge--2 { background: rgba(139,92,246,0.2);  color: #a78bfa; }
.guide-level__badge--3 { background: rgba(245,158,11,0.2);  color: #fbbf24; }

.guide-level strong { color: var(--text); }

.guide-level__example {
  display: block;
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.guide-level__tag {
  display: inline-block;
  background: rgba(139,92,246,0.2);
  color: #a78bfa;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 999px;
  margin-left: 5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
}

.guide-tip {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.guide-tip strong { color: var(--text-dim); }

/* ── Botões do formulário ── */
.form-btns {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Botão com loading state */
#btnScrape { position: relative; }

.btn-loading-content,
.btn-default-content {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ============================================================
   STATUS AREA
   ============================================================ */
.status-area {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Progresso */
.progress-wrap {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.progress-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-dim);
}

.progress-pages {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.progress-track {
  height: 4px;
  background: rgba(255,255,255,0.07);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #3b5bf6, #8b5cf6);
  border-radius: 999px;
  transition: width 0.5s var(--ease-out);
  box-shadow: 0 0 8px rgba(99,102,241,0.6);
}

.progress-url {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Log */
.log-wrap {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-height: 240px;
}

.log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.log-clear {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s;
  font-family: var(--font);
}
.log-clear:hover { color: var(--text-dim); }

.log-body {
  padding: 8px 0;
  overflow-y: auto;
  max-height: 190px;
  display: flex;
  flex-direction: column;
}

.log-entry {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 4px 16px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  border-radius: 0;
  animation: fadeIn 0.3s ease;
}

.log-entry__time { color: var(--text-muted); flex-shrink: 0; }
.log-entry__text { color: var(--text-dim); word-break: break-all; }

.log-entry--ok   .log-entry__text { color: #86efac; }
.log-entry--warn .log-entry__text { color: #fde68a; }
.log-entry--err  .log-entry__text { color: #fca5a5; }
.log-entry--info .log-entry__text { color: #93c5fd; }

/* Resultado final */
#resultBox {
  border-radius: var(--radius-md);
  padding: 24px;
  font-size: 0.9rem;
  border: 1px solid;
  animation: fadeUp 0.5s var(--ease-out);
}

#resultBox.success {
  background: rgba(34,197,94,0.07);
  border-color: rgba(34,197,94,0.25);
  color: #86efac;
}

#resultBox.error {
  background: rgba(239,68,68,0.07);
  border-color: rgba(239,68,68,0.25);
  color: #fca5a5;
}

#resultBox .result-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

#resultBox .result-stats {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 12px;
  margin-top: 16px;
}

.stat-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}

.stat-box__num {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
}

.stat-box__label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* ============================================================
   SEÇÃO: COMO USAR
   ============================================================ */
.steps-section {
  padding: 100px 24px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 56px;
}

.steps-row {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step-item {
  flex: 1;
  padding: 0 24px;
  text-align: center;
}

.step-num {
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--blue);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.step-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.step-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.step-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--border-md), transparent);
  align-self: center;
  flex-shrink: 0;
}

/* ============================================================
   SEÇÃO: FEATURES
   ============================================================ */
.features-section {
  padding: 40px 24px 120px;
  max-width: 1000px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.feat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}

.feat-card:hover {
  background: var(--surface-md);
  border-color: var(--border-md);
  transform: translateY(-4px);
}

.feat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feat-icon--blue   { background: rgba(59,130,246,0.15); color: #60a5fa; }
.feat-icon--purple { background: rgba(139,92,246,0.15); color: #a78bfa; }
.feat-icon--teal   { background: rgba(20,184,166,0.15); color: #2dd4bf; }
.feat-icon--green  { background: rgba(34,197,94,0.15);  color: #4ade80; }

.feat-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.feat-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 28px 24px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   ANIMAÇÕES UTILITÁRIAS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spin { animation: spin 0.8s linear infinite; }

/* ============================================================
   RESPONSIVIDADE
   ============================================================ */
@media (max-width: 768px) {
  .nav { padding: 16px 20px; }
  .nav__links { display: none; }

  .hero { padding: 100px 20px 60px; }
  .hero-title { font-size: 2.4rem; }
  .hero-sub { font-size: 0.95rem; }

  .tool-section { padding: 60px 20px 80px; }
  .tool-card__inner { padding: 28px 22px; }
  .tool-card__title { font-size: 1.3rem; }

  .adv__grid { grid-template-columns: 1fr; }
  .adv__field--checkbox { justify-content: flex-start; }

  .steps-row {
    flex-direction: column;
    gap: 32px;
    align-items: center;
  }
  .step-line {
    width: 60px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-md), transparent);
    display: none;
  }
  .step-item { width: 100%; max-width: 320px; }

  .features-grid { grid-template-columns: 1fr 1fr; }

  #resultBox .result-stats { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-ctas { flex-direction: column; width: 100%; }
  .btn-pill { width: 100%; justify-content: center; }
  .features-grid { grid-template-columns: 1fr; }
  #resultBox .result-stats { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   UTILITÁRIOS
   ============================================================ */
[hidden] { display: none !important; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}