/* ===========================
   DESIGN TOKENS — Libris by Evolusi
   Sapphire Blue + Premium Dark
   =========================== */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing (4px base) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Font families */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* ===========================
   LIGHT MODE (default)
   =========================== */
:root, [data-theme="light"] {
  --color-bg:             #f8f9fc;
  --color-surface:        #ffffff;
  --color-surface-2:      #f1f4f9;
  --color-surface-offset: #e8ecf4;
  --color-divider:        #d5dbe6;
  --color-border:         #c8d0de;

  --color-text:           #0f1a2d;
  --color-text-muted:     #5a6678;
  --color-text-faint:     #9aa5b8;
  --color-text-inverse:   #f8f9fc;

  /* Sapphire Blue Primary */
  --color-primary:        #0f52ba;
  --color-primary-hover:  #0a3d8f;
  --color-primary-active: #072d6b;
  --color-primary-light:  #e8f0ff;
  --color-primary-highlight: #d0e1ff;

  /* Aquamarine Accent */
  --color-accent:         #0d9488;
  --color-accent-hover:   #0a7a70;
  --color-accent-light:   #e6f7f5;

  /* Success */
  --color-success:        #16a34a;
  --color-success-light:  #dcfce7;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 26, 45, 0.05);
  --shadow-md: 0 4px 16px rgba(15, 26, 45, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 26, 45, 0.12);
  --shadow-xl: 0 24px 64px rgba(15, 26, 45, 0.16);
}

/* ===========================
   DARK MODE
   =========================== */
[data-theme="dark"] {
  --color-bg:             #0a0f1a;
  --color-surface:        #111827;
  --color-surface-2:      #1a2236;
  --color-surface-offset: #151d30;
  --color-divider:        #1e293b;
  --color-border:         #2a3650;

  --color-text:           #e2e8f0;
  --color-text-muted:     #94a3b8;
  --color-text-faint:     #64748b;
  --color-text-inverse:   #0f1a2d;

  --color-primary:        #5b8def;
  --color-primary-hover:  #7ba5f5;
  --color-primary-active: #3a6fd8;
  --color-primary-light:  #1a2744;
  --color-primary-highlight: #1e3054;

  --color-accent:         #2dd4bf;
  --color-accent-hover:   #5eead4;
  --color-accent-light:   #0f2d2a;

  --color-success:        #4ade80;
  --color-success-light:  #0f2d1a;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0a0f1a;
    --color-surface:        #111827;
    --color-surface-2:      #1a2236;
    --color-surface-offset: #151d30;
    --color-divider:        #1e293b;
    --color-border:         #2a3650;
    --color-text:           #e2e8f0;
    --color-text-muted:     #94a3b8;
    --color-text-faint:     #64748b;
    --color-text-inverse:   #0f1a2d;
    --color-primary:        #5b8def;
    --color-primary-hover:  #7ba5f5;
    --color-primary-active: #3a6fd8;
    --color-primary-light:  #1a2744;
    --color-primary-highlight: #1e3054;
    --color-accent:         #2dd4bf;
    --color-accent-hover:   #5eead4;
    --color-accent-light:   #0f2d2a;
    --color-success:        #4ade80;
    --color-success-light:  #0f2d1a;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
  }
}

/* ===========================
   GLOBAL STYLES
   =========================== */

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

/* ===========================
   HEADER / NAV
   =========================== */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow 0.3s var(--ease-out);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.75rem;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}

.header__logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.header__logo-badge {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.nav { display: flex; align-items: center; gap: var(--space-6); }

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.nav__link:hover { color: var(--color-text); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-inverse);
  background: var(--color-primary);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.nav__cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.nav__cta:active { transform: translateY(0); }

.theme-toggle {
  color: var(--color-text-muted);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* Mobile nav */
.nav-mobile-toggle {
  display: none;
  color: var(--color-text);
  padding: var(--space-2);
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav-mobile-toggle { display: flex; }
  .nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-6);
    gap: var(--space-4);
    box-shadow: var(--shadow-lg);
  }
  .nav--open .nav__cta {
    justify-content: center;
    width: 100%;
  }
}

/* ===========================
   HERO
   =========================== */

.hero {
  padding-block: clamp(var(--space-16), 12vw, var(--space-32));
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 100%;
  background: radial-gradient(ellipse at center, var(--color-primary-highlight) 0%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.btn:active { transform: translateY(0) scale(0.98); }

.btn--primary {
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 2px 12px rgba(15, 82, 186, 0.3);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(15, 82, 186, 0.35);
}

.btn--secondary {
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}
.btn--secondary:hover {
  background: var(--color-surface-2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--large {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

.btn__icon {
  width: 20px;
  height: 20px;
}

.hero__proof {
  margin-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.hero__proof-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hero__proof-icon {
  width: 16px;
  height: 16px;
  color: var(--color-success);
}

/* ===========================
   SOCIAL PROOF / STATS
   =========================== */

.stats {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding-block: var(--space-10);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
}

@media (max-width: 768px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
}

.stats__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.stats__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ===========================
   PROBLEM / SOLUTION
   =========================== */

.problem {
  background: var(--color-bg);
}

.problem__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 768px) {
  .problem__grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

.problem__tag {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.problem__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.problem__text {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.pain-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pain-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pain-list__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.pain-list__icon--problem { color: #ef4444; }
.pain-list__icon--solution { color: var(--color-success); }

/* Solution visual */
.solution-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
}

.solution-visual__phone {
  width: 260px;
  margin: 0 auto;
  background: var(--color-surface-2);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
}

.chat-msg {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.chat-msg--user { justify-content: flex-end; }

.chat-bubble {
  max-width: 80%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: var(--text-xs);
  line-height: 1.5;
}

.chat-bubble--bot {
  background: var(--color-primary-light);
  color: var(--color-text);
  border-bottom-left-radius: var(--radius-sm);
}

.chat-bubble--user {
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: var(--radius-sm);
}

.chat-bubble__agent {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===========================
   AGENTS (Especialistas)
   =========================== */

.agents {
  background: var(--color-surface-2);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
}

.section-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.agents__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .agents__grid { grid-template-columns: 1fr; }
}

.agent-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: box-shadow var(--transition-interactive),
              transform var(--transition-interactive),
              border-color var(--transition-interactive);
}

.agent-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--color-primary-highlight);
}

.agent-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  font-size: 24px;
}

.agent-card__icon--atendimento { background: #dbeafe; color: #2563eb; }
.agent-card__icon--marketing { background: #fce7f3; color: #db2777; }
.agent-card__icon--financeiro { background: #d1fae5; color: #059669; }
.agent-card__icon--estrategico { background: #ede9fe; color: #7c3aed; }

[data-theme="dark"] .agent-card__icon--atendimento { background: #1e3a5f; color: #60a5fa; }
[data-theme="dark"] .agent-card__icon--marketing { background: #4a1942; color: #f472b6; }
[data-theme="dark"] .agent-card__icon--financeiro { background: #1a3a2a; color: #34d399; }
[data-theme="dark"] .agent-card__icon--estrategico { background: #2e1f5e; color: #a78bfa; }

.agent-card__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.agent-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.agent-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.agent-card__features li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.agent-card__features li svg {
  width: 14px;
  height: 14px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ===========================
   HOW IT WORKS
   =========================== */

.how {
  background: var(--color-bg);
}

.how__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  counter-reset: step;
}

@media (max-width: 768px) {
  .how__steps { grid-template-columns: 1fr; }
}

.step-card {
  text-align: center;
  counter-increment: step;
}

.step-card__number {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.step-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.step-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===========================
   SEGMENTS (Para quem é)
   =========================== */

.segments {
  background: var(--color-surface-2);
}

.segments__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .segments__grid { grid-template-columns: 1fr; }
}

.segment-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  text-align: center;
  transition: box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.segment-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.segment-card__emoji {
  font-size: 40px;
  margin-bottom: var(--space-3);
  line-height: 1;
}

.segment-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.segment-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===========================
   PRICING
   =========================== */

.pricing {
  background: var(--color-bg);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

@media (max-width: 900px) {
  .pricing__grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
  transition: box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-lg);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.pricing-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.5;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin-bottom: var(--space-1);
}

.pricing-card__currency {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.pricing-card__period {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-6);
}

.pricing-card__divider {
  height: 1px;
  background: var(--color-divider);
  margin-bottom: var(--space-6);
}

.pricing-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pricing-card__features li svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.pricing-card .btn {
  width: 100%;
  justify-content: center;
}

/* ===========================
   DIFFERENTIALS
   =========================== */

.differentials {
  background: var(--color-surface-2);
}

.diff__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .diff__grid { grid-template-columns: 1fr; }
}

.diff-card {
  text-align: center;
  padding: var(--space-6);
}

.diff-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.diff-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.diff-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===========================
   CTA FINAL
   =========================== */

.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-active));
  padding-block: clamp(var(--space-12), 8vw, var(--space-20));
  text-align: center;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.cta-section__subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.8);
  max-width: 500px;
  margin: 0 auto var(--space-8);
}

.btn--cta-white {
  color: var(--color-primary);
  background: #fff;
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.btn--cta-white:hover {
  background: #f0f4ff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ===========================
   FAQ
   =========================== */

.faq {
  background: var(--color-bg);
}

.faq__list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  overflow: hidden;
  transition: border-color var(--transition-interactive);
}

.faq-item[open] {
  border-color: var(--color-primary-highlight);
}

.faq-item summary {
  padding: var(--space-5) var(--space-6);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: var(--text-lg);
  color: var(--color-text-faint);
  transition: transform var(--transition-interactive);
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  content: '−';
  color: var(--color-primary);
}

.faq-item__body {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===========================
   FOOTER
   =========================== */

.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer__brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
}

.footer__brand-sub {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer__link {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer__link:hover { color: var(--color-text); }

/* ===========================
   SCROLL ANIMATIONS
   =========================== */

.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* Fallback for browsers without scroll-driven animation */
@supports not (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    transition: opacity 0.6s var(--ease-out);
  }
  .fade-in.visible {
    opacity: 1;
  }
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 40;
  transition: transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}
.whatsapp-float svg {
  width: 28px;
  height: 28px;
}


/* Espaço para banner de aviso */
.notification-banner {
    background-color: #fff3cd; /* Amarelo suave de alerta */
    color: #856404; /* Texto em tom marrom/dourado escuro */
    text-align: center;
    font-family: sans-serif;
    font-size: 14px;
    border-bottom: 1px solid #ffeeba;
    width: 100%;
    z-index: 9999;
    position: relative;
}

.banner-content {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.banner-content p {
    margin: 0;
    line-height: 1.4;
}

.banner-content a {
    color: #856404;
    text-decoration: underline;
    font-weight: bold;
}

.banner-content a:hover {
    color: #533f03;
}

.banner-icon {
    font-size: 18px;
}

/* Ajuste para dispositivos móveis */
@media (max-width: 600px) {
    .notification-banner {
        font-size: 12px;
        padding: 12px 15px;
    }
}