/* ═══════════════════════════════════════════════════════════════
   LISTENIA — Stylesheet
   Organized: Reset → Variables → Base → Layout → Components → Sections → Responsive
═══════════════════════════════════════════════════════════════ */

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

/* ── CSS VARIABLES ── */
:root {
  --purple:        #5B5BD6;
  --purple-light:  #7C7CE8;
  --purple-deeper: #0E0A2E;
  --purple-mid:    #2D2480;
  --lilac:         #9B8EF5;
  --lilac-soft:    #C4BCF8;
  --off-white:     #F8F7FF;
  --gray-soft:     #F0EFF8;
  --gray-text:     #6B6B8A;
  --dark-text:     #1A1A2E;
  --border:        rgba(91, 91, 214, 0.1);
  --border-light:  rgba(155, 142, 245, 0.15);

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

  --shadow-sm:  0 2px 8px rgba(91, 91, 214, 0.08);
  --shadow-md:  0 8px 30px rgba(91, 91, 214, 0.12);
  --shadow-lg:  0 20px 60px rgba(91, 91, 214, 0.15);

  --transition: all 0.2s ease;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: #fff;
  color: var(--dark-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

/* ── TYPOGRAPHY SCALE ── */
h1 { font-size: clamp(2rem, 3.8vw, 3.2rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: 1rem; }

/* ── LAYOUT UTILITIES ── */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

section {
  padding: 100px 2rem;
}

/* ── SECTION LABELS ── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  width: 18px;
  height: 2px;
  background: currentColor;
  display: block;
  flex-shrink: 0;
}

.section-label--light {
  color: var(--lilac);
}

/* ── SECTION TITLES ── */
.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--dark-text);
  margin-bottom: 1rem;
}

.section-title--light {
  color: #fff;
}

.section-sub {
  font-size: 1rem;
  color: var(--gray-text);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 3rem;
}

.section-sub--light {
  color: rgba(255, 255, 255, 0.5);
}

.accent       { color: var(--purple); }
.accent-light { color: var(--lilac); }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--purple);
  color: #fff;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--purple-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(91, 91, 214, 0.4);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.22);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.05);
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: var(--purple);
  padding: 16px 36px;
  border-radius: 100px;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
  white-space: nowrap;
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
}

.btn-ghost-white {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  padding: 16px 28px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
}

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

/* ═══════════════════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(14, 10, 46, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: padding 0.3s ease;
}

#navbar.scrolled {
  padding: 12px 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 2rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 36px;
  width: auto;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.nav-cta {
  background: var(--purple);
  color: #fff;
  padding: 10px 22px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--purple-light);
  transform: translateY(-1px);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ═══════════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  background: var(--purple-deeper);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 2rem 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 65% 45%, rgba(91, 91, 214, 0.22) 0%, transparent 65%),
    radial-gradient(ellipse 40% 30% at 10% 80%, rgba(155, 142, 245, 0.08) 0%, transparent 55%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 460px;
  gap: 4rem;
  align-items: center;
}

/* Hero content (left) */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(91, 91, 214, 0.2);
  border: 1px solid rgba(91, 91, 214, 0.4);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--lilac);
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lilac);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.75;
  margin-bottom: 2.5rem;
  max-width: 460px;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-num {
  font-size: 1.7rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-label {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4px;
}

/* ── WhatsApp Mockup ── */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.wa-mockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  animation: float-slow 5s ease-in-out infinite;
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.wa-phone {
  width: 100%;
  max-width: 340px;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

/* WhatsApp bar */
.wa-bar {
  background: #075E54;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.wa-bar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.wa-avatar-sm {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--lilac);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.wa-contact-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
}

.wa-contact-status {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 1px;
}

.wa-bar-icons {
  display: flex;
  gap: 10px;
  color: rgba(255, 255, 255, 0.8);
}

/* WhatsApp chat area */
.wa-chat {
  background: #ECE5DD;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' opacity='0.05'%3E%3Ccircle cx='40' cy='40' r='30' stroke='%23000' fill='none'/%3E%3C/svg%3E");
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 180px;
}

.wa-date-label {
  text-align: center;
  font-size: 0.68rem;
  font-weight: 600;
  color: rgba(0,0,0,0.45);
  background: rgba(255,255,255,0.7);
  padding: 3px 10px;
  border-radius: 100px;
  align-self: center;
  margin-bottom: 4px;
}

.wa-msg {
  display: flex;
  flex-direction: column;
  max-width: 85%;
}

.wa-client {
  align-self: flex-end;
}

.wa-bot {
  align-self: flex-start;
}

.wa-bubble {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 0.82rem;
  line-height: 1.45;
  color: #111;
}

.wa-client .wa-bubble {
  background: #DCF8C6;
  border-bottom-right-radius: 3px;
}

.wa-bot .wa-bubble {
  background: #fff;
  border-bottom-left-radius: 3px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.wa-time {
  font-size: 0.63rem;
  color: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  gap: 3px;
  margin-top: 2px;
  padding: 0 2px;
}

.wa-client .wa-time {
  align-self: flex-end;
}

.wa-bot .wa-time {
  align-self: flex-start;
}

/* Typing dots */
.wa-typing-dots {
  display: flex;
  gap: 4px;
  padding: 12px 14px;
  width: fit-content;
}

.wa-typing-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gray-text);
  animation: typing-dot 1.3s ease-in-out infinite;
}

.wa-typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.wa-typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-dot {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50%       { transform: translateY(-4px); opacity: 1; }
}

/* WhatsApp input */
.wa-input-bar {
  background: #F0F0F0;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.wa-input-field {
  flex: 1;
  background: #fff;
  border-radius: 100px;
  padding: 8px 14px;
  font-size: 0.8rem;
  color: rgba(0,0,0,0.35);
}

.wa-send-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #075E54;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

/* Hero checks below mockup */
.hero-checks {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 340px;
}

.hero-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

/* ═══════════════════════════════════════════════════════════════
   PROBLEMS
═══════════════════════════════════════════════════════════════ */
.problems {
  background: var(--off-white);
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.problem-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--purple);
  opacity: 0;
  transition: opacity 0.3s;
}

.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.problem-card:hover::before {
  opacity: 1;
}

.problem-icon {
  width: 44px;
  height: 44px;
  background: rgba(91, 91, 214, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.problem-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--dark-text);
}

.problem-text {
  font-size: 0.83rem;
  color: var(--gray-text);
  line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════════════
   HOW IT WORKS
═══════════════════════════════════════════════════════════════ */
.how-works {
  background: var(--purple-deeper);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 4rem;
  position: relative;
}

.steps-container::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(155, 142, 245, 0.3) 15%,
    rgba(155, 142, 245, 0.3) 85%,
    transparent
  );
  z-index: 0;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--purple-mid);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--lilac-soft);
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.step:hover .step-num {
  background: var(--purple);
  border-color: var(--purple-light);
}

.step-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.step-text {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.42);
  line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════════════
   SOLUTIONS
═══════════════════════════════════════════════════════════════ */
.helps {
  background: #fff;
}

.helps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.25rem;
}

.help-card {
  background: var(--off-white);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.help-card:hover {
  background: var(--gray-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* Featured card spans 1st column, 2 rows */
.help-card--featured {
  background: var(--purple-deeper);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  grid-row: span 2;
  position: relative;
  overflow: hidden;
  min-height: 280px;
}

.help-card--featured .help-num {
  margin-top: auto;
  padding-top: 1rem;
}

.help-card--featured::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(91,91,214,.35) 0%, transparent 70%);
  pointer-events: none;
}

.help-card--featured:hover {
  background: var(--purple-deeper);
  transform: translateY(-3px);
}

.help-card--featured .help-num  { color: var(--lilac); }
.help-card--featured .help-title { color: #fff; }
.help-card--featured .help-text  { color: rgba(255, 255, 255, 0.55); }

.featured-lia-img {
  width: 100%;
  max-width: 200px;
  flex: 1;
  object-fit: contain;
  display: block;
  margin: 1rem auto 0;
  align-self: center;
  filter: drop-shadow(0 10px 28px rgba(91, 91, 214, 0.45));
  pointer-events: none;
}

.featured-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(91, 91, 214, 0.4);
  border: 1px solid rgba(91, 91, 214, 0.5);
  color: var(--lilac-soft);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.05em;
}

.help-num {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.help-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--dark-text);
  position: relative;
  z-index: 1;
}

.help-text {
  font-size: 0.84rem;
  color: var(--gray-text);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════
   BENEFITS
═══════════════════════════════════════════════════════════════ */
.benefits {
  background: var(--off-white);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.benefit-card {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: #fff;
  transition: var(--transition);
}

.benefit-card:hover {
  border-color: rgba(91, 91, 214, 0.25);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.benefit-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(91, 91, 214, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.benefit-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--dark-text);
}

.benefit-text {
  font-size: 0.83rem;
  color: var(--gray-text);
  line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════════════
   IDEAL PARA
═══════════════════════════════════════════════════════════════ */
.ideal-para {
  background: #fff;
}

.ideal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.ideal-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.ideal-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--purple), var(--lilac));
  opacity: 0;
  transition: opacity 0.3s;
}

.ideal-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: #fff;
}

.ideal-card:hover::after {
  opacity: 1;
}

.ideal-icon {
  width: 48px;
  height: 48px;
  background: rgba(91, 91, 214, 0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.ideal-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--dark-text);
}

.ideal-text {
  font-size: 0.82rem;
  color: var(--gray-text);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════
   DEMO / CHAT
═══════════════════════════════════════════════════════════════ */
.demo {
  background: var(--off-white);
}

.demo-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

/* Demo LIA headset */
.demo-lia {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.demo-lia-img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 4px 12px rgba(91, 91, 214, 0.2));
}

.demo-lia-badge {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--dark-text);
  line-height: 1.4;
}

.demo-lia-badge::after {
  content: 'Resposta em menos de 3 segundos';
  display: block;
  font-size: 0.76rem;
  font-weight: 400;
  color: var(--gray-text);
  margin-top: 3px;
}

.demo-title {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 800;
  color: var(--dark-text);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.demo-sub {
  font-size: 0.93rem;
  color: var(--gray-text);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.demo-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.demo-feat {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--dark-text);
}

.feat-check {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 50%;
  background: var(--purple);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Chat widget */
.chat-demo {
  background: #fff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.chat-header {
  background: var(--purple-deeper);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--purple);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.chat-avatar-img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 50%;
}

.chat-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
}

.chat-online {
  font-size: 0.72rem;
  color: #4CAF50;
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 2px;
}

.online-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4CAF50;
  animation: pulse 2s ease-in-out infinite;
}

.chat-messages {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 300px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar       { width: 4px; }
.chat-messages::-webkit-scrollbar-track  { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb  { background: var(--border); border-radius: 4px; }

.msg {
  max-width: 80%;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.msg--received {
  align-self: flex-start;
}

.msg--sent {
  align-self: flex-end;
  align-items: flex-end;
}

.msg-bubble {
  padding: 9px 13px;
  border-radius: 16px;
  font-size: 0.83rem;
  line-height: 1.5;
}

.msg--received .msg-bubble {
  background: var(--off-white);
  color: var(--dark-text);
  border-bottom-left-radius: 4px;
}

.msg--sent .msg-bubble {
  background: var(--purple);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.msg-time {
  font-size: 0.67rem;
  color: var(--gray-text);
}

/* Typing indicator */
.msg-typing .msg-bubble {
  display: flex;
  gap: 4px;
  padding: 12px 14px;
}

.typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gray-text);
  animation: typing-dot 1.2s ease-in-out infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

.chat-input-area {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  align-items: center;
}

.chat-input {
  flex: 1;
  border: 1px solid rgba(91, 91, 214, 0.2);
  border-radius: 100px;
  padding: 9px 16px;
  font-size: 0.83rem;
  font-family: inherit;
  outline: none;
  background: var(--off-white);
  color: var(--dark-text);
  transition: border-color 0.2s;
}

.chat-input:focus {
  border-color: var(--purple);
}

.chat-input::placeholder {
  color: var(--gray-text);
  opacity: 0.7;
}

.chat-send {
  background: var(--purple);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

.chat-send:hover {
  background: var(--purple-light);
}

/* ═══════════════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════════════ */
.about {
  background: var(--purple-deeper);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-text {
  font-size: 0.98rem;
  color: rgba(255, 255, 255, 0.58);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.value-item:hover {
  background: rgba(255, 255, 255, 0.07);
}

.value-icon {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: var(--radius-sm);
  background: rgba(91, 91, 214, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.2rem;
}

.value-text {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.42);
  line-height: 1.55;
}

/* About visual (right side) */
.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem;
  text-align: center;
  max-width: 300px;
  width: 100%;
}

.lia-img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  margin: 0 auto 1.25rem;
  filter: drop-shadow(0 12px 30px rgba(91, 91, 214, 0.4));
}

.about-card-title {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}

.about-card-text {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.65;
}

.about-badge {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 5px 16px;
  border-radius: 100px;
  background: rgba(91, 91, 214, 0.25);
  border: 1px solid rgba(91, 91, 214, 0.4);
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--lilac);
  letter-spacing: 0.04em;
}

/* ═══════════════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════════════ */
.contact {
  background: var(--off-white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
  align-items: start;
}

.contact-sub {
  font-size: 0.98rem;
  color: var(--gray-text);
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 340px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--dark-text);
  text-decoration: none;
  transition: color 0.2s;
}

.contact-detail-item:hover {
  color: var(--purple);
}

.contact-detail-icon {
  width: 38px;
  height: 38px;
  background: rgba(91, 91, 214, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Contact Form */
.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1rem;
}

.form-group:last-of-type {
  margin-bottom: 1.25rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--dark-text);
}

.form-group input,
.form-group textarea {
  border: 1px solid rgba(91, 91, 214, 0.2);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--dark-text);
  background: var(--off-white);
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--purple);
  background: #fff;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-text);
  opacity: 0.7;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-success {
  margin-top: 1rem;
  padding: 12px 16px;
  background: rgba(76, 175, 80, 0.08);
  border: 1px solid rgba(76, 175, 80, 0.3);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: #2e7d32;
  text-align: center;
}

/* ═══════════════════════════════════════════════════════════════
   FAQ
═══════════════════════════════════════════════════════════════ */
.faq {
  background: var(--off-white);
}

.faq-title {
  text-align: center;
}

.faq-list {
  max-width: 700px;
  margin: 3rem auto 0;
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid rgba(91, 91, 214, 0.1);
}

.faq-q {
  width: 100%;
  padding: 1.4rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--dark-text);
  text-align: left;
  transition: color 0.2s;
  background: none;
  border: none;
}

.faq-q:hover {
  color: var(--purple);
}

.faq-icon {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: 50%;
  background: rgba(91, 91, 214, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--purple);
  font-weight: 700;
  transition: all 0.3s;
  line-height: 1;
}

.faq-item.open .faq-icon {
  background: var(--purple);
  color: #fff;
  transform: rotate(45deg);
}

.faq-a {
  padding: 0 0 1.5rem;
  font-size: 0.875rem;
  color: var(--gray-text);
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════════════════
   CTA FINAL
═══════════════════════════════════════════════════════════════ */
.cta-final {
  background: var(--purple);
  padding: 100px 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-final::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(255,255,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.cta-label {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.cta-final h2 {
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.cta-final p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.cta-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════ */
footer {
  background: var(--purple-deeper);
  padding: 60px 2rem 40px;
  border-top: 1px solid var(--border-light);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2.5rem;
}

.footer-desc {
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 0.75rem;
  max-width: 220px;
  line-height: 1.65;
}

.footer-links h4 {
  font-size: 0.73rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.footer-links a {
  display: block;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  max-width: 1200px;
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.22);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 1024px)
═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  /* Hero */
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
    gap: 3rem;
  }

  .hero-sub {
    margin: 0 auto 2.5rem;
  }

  .hero-btns {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  /* Grids */
  .helps-grid {
    grid-template-columns: 1fr 1fr;
  }

  .help-card--featured {
    grid-column: 1 / -1;
    grid-row: span 1;
    min-height: 200px;
  }

  .steps-container {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .steps-container::before {
    display: none;
  }

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

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

  /* Demo */
  .demo-wrapper {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  /* About */
  .about-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-visual {
    display: none;
  }

  /* Contact */
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 768px)
═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  section {
    padding: 70px 1.25rem;
  }

  /* Nav */
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    top: 70px;
    background: rgba(14, 10, 46, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 99;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.1rem;
    font-weight: 600;
  }

  .nav-hamburger {
    display: flex;
  }

  /* Hero */
  .wa-phone {
    max-width: 300px;
  }

  /* Grids → 1 col */
  .helps-grid,
  .benefits-grid,
  .problems-grid,
  .ideal-grid {
    grid-template-columns: 1fr;
  }

  .help-card--featured {
    grid-column: 1;
  }

  .steps-container {
    grid-template-columns: 1fr;
  }

  /* Demo */
  .demo-wrapper {
    gap: 2rem;
  }

  /* Contact form */
  .contact-form {
    padding: 1.75rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* CTA */
  .cta-btns {
    flex-direction: column;
    align-items: center;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
  }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (≤ 480px)
═══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  section {
    padding: 60px 1rem;
  }

  .hero {
    padding: 100px 1rem 60px;
  }

  .hero-btns {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .wa-phone {
    max-width: 280px;
  }

  .hero-checks {
    max-width: 280px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS — Fade in on scroll
═══════════════════════════════════════════════════════════════ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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