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

/* ── Design Tokens ── */
:root {
  --bg:            #0f0f13;
  --surface:       #1a1a24;
  --surface-raised: #22223a;
  --border:        rgba(108, 99, 255, 0.14);
  --border-subtle: rgba(255, 255, 255, 0.06);

  --accent-start:  #6c63ff;
  --accent-end:    #a78bfa;
  --accent-mid:    #8b7cf6;
  --gradient:      linear-gradient(135deg, var(--accent-start), var(--accent-end));

  --text:          #e8e8f0;
  --text-muted:    #8888a8;
  --text-faint:    #55556a;

  /* Modular type scale (1.250 ratio) */
  --fs-xs:   0.64rem;
  --fs-sm:   0.8rem;
  --fs-base: 1rem;
  --fs-md:   1.25rem;
  --fs-lg:   1.563rem;
  --fs-xl:   1.953rem;
  --fs-2xl:  2.441rem;
  --fs-3xl:  3.052rem;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --radius-xl:  24px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45), 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 32px rgba(108, 99, 255, 0.25);
  --shadow-featured: 0 0 0 2px var(--accent-start), 0 8px 40px rgba(108, 99, 255, 0.3);
}

/* ── Base ── */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

ul { list-style: none; }

a { color: inherit; text-decoration: none; }


/* ══════════════════════════════
   HEADER
══════════════════════════════ */
header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  height: clamp(64px, 8vw, 80px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  background: rgba(15, 15, 19, 0.75);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s;
}

.logo {
  font-size: var(--fs-md);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

nav {
  display: none;
  align-items: center;
  gap: 2rem;
}

nav a {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover { color: var(--text); }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--gradient);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 700;
  padding: 0.6em 1.4em;
  border-radius: var(--radius-sm);
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--accent-start);
  font-size: var(--fs-sm);
  font-weight: 700;
  padding: 0.6em 1.4em;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(108, 99, 255, 0.45);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}

.btn-secondary:hover {
  background: rgba(108, 99, 255, 0.12);
  border-color: var(--accent-start);
  color: #fff;
}


/* ══════════════════════════════
   SECTION COMMON
══════════════════════════════ */
.section {
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 5vw, 2.5rem);
  max-width: 1160px;
  margin: 0 auto;
}

.section > h2 {
  font-size: clamp(var(--fs-xl), 3.5vw, var(--fs-2xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.section-sub {
  color: var(--text-muted);
  font-size: var(--fs-base);
  max-width: 52ch;
  margin-bottom: 0.5rem;
}


/* ══════════════════════════════
   HERO
══════════════════════════════ */
#hero {
  min-height: 100svh;
  padding-top: calc(clamp(64px, 8vw, 80px) + 3rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  max-width: 1160px;
  margin: 0 auto;
  padding-inline: clamp(1rem, 5vw, 2.5rem);
  background:
    radial-gradient(ellipse 90% 50% at 50% -5%, rgba(108, 99, 255, 0.15) 0%, transparent 65%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(167, 139, 250, 0.07) 0%, transparent 60%);
}

.hero-content {
  text-align: center;
  max-width: 640px;
}

.hero-content h1 {
  font-size: clamp(var(--fs-2xl), 6vw, var(--fs-3xl));
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  background: linear-gradient(160deg, #fff 30%, var(--accent-end) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: var(--text-muted);
  font-size: clamp(var(--fs-base), 2vw, var(--fs-md));
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.hero-actions .btn-primary,
.hero-actions .btn-secondary {
  font-size: var(--fs-base);
  padding: 0.75em 1.75em;
}

/* Mockup card — pure CSS, no images */
.mockup-card {
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(108, 99, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.mockup-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(108, 99, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.mockup-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--text);
}

.mockup-badge {
  font-size: var(--fs-xs);
  font-weight: 700;
  background: rgba(108, 99, 255, 0.18);
  color: var(--accent-end);
  padding: 0.25em 0.75em;
  border-radius: 20px;
  border: 1px solid rgba(108, 99, 255, 0.25);
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.task-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.task-done .task-text {
  text-decoration: line-through;
  opacity: 0.55;
}

.checkbox {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  border-radius: 5px;
  border: 1.5px solid var(--text-faint);
  background: transparent;
  position: relative;
  transition: background 0.2s, border-color 0.2s;
}

.checkbox.checked {
  background: var(--gradient);
  border-color: transparent;
}

.checkbox.checked::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 2px;
  width: 6px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(40deg);
}

.mockup-hint {
  font-size: var(--fs-xs);
  color: var(--accent-end);
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid rgba(167, 139, 250, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  letter-spacing: 0.01em;
}


/* ══════════════════════════════
   FEATURES
══════════════════════════════ */
#features {
  background:
    radial-gradient(ellipse 70% 50% at 100% 50%, rgba(108, 99, 255, 0.06) 0%, transparent 60%);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(108, 99, 255, 0.2);
  border-color: rgba(108, 99, 255, 0.3);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(108, 99, 255, 0.12);
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.7;
}


/* ══════════════════════════════
   TESTIMONIALS
══════════════════════════════ */
#depoimentos {
  background: var(--surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  max-width: unset;
  padding-inline: 0;
}

#depoimentos .social-proof {
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 5vw, 2.5rem);
}

#depoimentos h2 {
  font-size: clamp(var(--fs-xl), 3.5vw, var(--fs-2xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.testimonial {
  background: var(--bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.testimonial:hover {
  border-color: rgba(108, 99, 255, 0.25);
  box-shadow: var(--shadow-card);
}

.testimonial::before {
  content: '\201C';
  position: absolute;
  top: 0.75rem;
  right: 1.25rem;
  font-size: 3.5rem;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: Georgia, serif;
  opacity: 0.5;
  pointer-events: none;
}

.testimonial-text {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.75;
  flex: 1;
}

.testimonial-name {
  display: block;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--text);
}

.testimonial-role {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-faint);
  margin-top: 0.15rem;
}


/* ══════════════════════════════
   PRICING
══════════════════════════════ */
.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  align-items: start;
}

.plan-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.25s, box-shadow 0.25s;
}

.plan-card:hover:not(.plan-featured) {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

/* Pro plan — gradient border via pseudo-element */
.plan-featured {
  background: var(--surface);
  border: none;
  transform: scale(1.03);
  box-shadow: var(--shadow-featured);
  z-index: 1;
}

.plan-featured::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: var(--gradient);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.plan-featured:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-featured), var(--shadow-glow);
}

.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  translate: -50% 0;
  background: var(--gradient);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35em 1em;
  border-radius: 20px;
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(108, 99, 255, 0.45);
}

.plan-name {
  font-size: var(--fs-sm);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.plan-featured .plan-name {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.price-value {
  font-size: clamp(var(--fs-xl), 4vw, var(--fs-2xl));
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
}

.price-period {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: 1.3;
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.plan-features li::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(108, 99, 255, 0.15);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%23a78bfa' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  flex-shrink: 0;
}

.plan-card .btn-primary,
.plan-card .btn-secondary {
  display: flex;
  justify-content: center;
  font-size: var(--fs-sm);
  padding: 0.75em 1.5em;
  margin-top: 0.5rem;
}


/* ══════════════════════════════
   FAQ
══════════════════════════════ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 2.5rem;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item[open] {
  border-color: rgba(108, 99, 255, 0.35);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.2s;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { display: none; }

.faq-item summary:hover { color: #fff; }

/* Arrow icon */
.faq-item summary::after {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 7l5 5 5-5' stroke='%236c63ff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item p {
  padding: 0 1.4rem 1.25rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.75;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}


/* ══════════════════════════════
   FOOTER
══════════════════════════════ */
footer {
  background: var(--surface);
  border-top: 1px solid var(--border-subtle);
  padding: clamp(3rem, 6vw, 5rem) clamp(1rem, 5vw, 2.5rem) 2rem;
}

footer > * {
  max-width: 1160px;
  margin-inline: auto;
}

.footer-brand {
  margin-bottom: 3rem;
}

.footer-brand .logo {
  display: inline-block;
  font-size: var(--fs-md);
}

.footer-tagline {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  margin-top: 0.5rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-group h4 {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  margin-bottom: 1rem;
}

.footer-group ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-group a {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-group a:hover {
  color: var(--text);
}

.footer-copy {
  display: block;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  font-size: var(--fs-xs);
  color: var(--text-faint);
  text-align: center;
}


/* ══════════════════════════════
   SCROLL ANIMATIONS
   JS drives .visible on .fade-in and .fade-section
══════════════════════════════ */
.fade-in,
.fade-section {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible,
.fade-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children inside animated containers */
.features-grid .feature-card:nth-child(2) { transition-delay: 0.1s; }
.features-grid .feature-card:nth-child(3) { transition-delay: 0.2s; }
.testimonials-grid .testimonial:nth-child(2) { transition-delay: 0.1s; }
.testimonials-grid .testimonial:nth-child(3) { transition-delay: 0.2s; }
.plans-grid .plan-card:nth-child(2) { transition-delay: 0.1s; }
.plans-grid .plan-card:nth-child(3) { transition-delay: 0.2s; }


/* ══════════════════════════════
   RESPONSIVE — 768px
══════════════════════════════ */
@media (min-width: 768px) {
  nav { display: flex; }

  #hero {
    flex-direction: row;
    align-items: center;
    gap: 4rem;
  }

  .hero-content {
    flex: 1;
    text-align: left;
  }

  .hero-actions { justify-content: flex-start; }

  .mockup-card {
    flex-shrink: 0;
    width: 400px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .plans-grid {
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

  .plan-featured {
    grid-column: span 2;
    max-width: 420px;
    justify-self: center;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}


/* ══════════════════════════════
   RESPONSIVE — 1024px
══════════════════════════════ */
@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .plans-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .plan-featured {
    grid-column: unset;
    max-width: unset;
    justify-self: unset;
  }

  footer {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    column-gap: 4rem;
    align-items: start;
  }

  .footer-brand { margin-bottom: 0; }

  .footer-links {
    grid-column: 2;
    grid-row: 1;
    gap: 3rem;
  }

  .footer-copy {
    grid-column: 1 / -1;
    text-align: left;
  }
}