/* ========================================
   Anotamelo Landing — WhatsApp-inspired
   ======================================== */

:root {
  --green: #25D366;
  --green-dark: #128C7E;
  --green-darker: #075E54;
  --green-light: #dcf8c6;
  --chat-bg: #ECE5DD;
  --bg: #fafafa;
  --bg-dark: #0b1120;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 2px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; }

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

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
  padding: 10px 24px;
}

.btn-primary {
  background: var(--green);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--green-darker);
  border: 2px solid var(--green);
}
.btn-outline:hover {
  background: var(--green);
  color: var(--white);
}

.btn-nav {
  background: var(--green);
  color: var(--white);
  padding: 8px 20px;
  font-size: 0.85rem;
}
.btn-nav:hover {
  background: var(--green-dark);
}

.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding: 14px 0;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.25rem;
}
.logo-icon { font-size: 1.5rem; }

.logo-img {
  width: 88px;
  height: 88px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--green-darker); }

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Hero ---- */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #f0fdf4 0%, var(--bg) 50%, #ecfdf5 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(37, 211, 102, 0.12);
  color: var(--green-dark);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text);
}

.highlight {
  color: var(--green);
  position: relative;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.hero-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Phone mockup */
.phone-mockup {
  width: 320px;
  margin: 0 auto;
  background: var(--white);
  border-radius: 36px;
  box-shadow: var(--shadow-lg), 0 0 0 8px #e5e7eb;
  overflow: hidden;
  position: relative;
}

.phone-notch {
  width: 120px;
  height: 24px;
  background: #e5e7eb;
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--green-darker);
  color: var(--white);
}

.chat-avatar {
  width: 60px;
  height: 60px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.avatar-img {
  width: 110%;
  height: 110%;
  object-fit: contain;
}

.chat-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.chat-status {
  font-size: 0.7rem;
  opacity: 0.8;
}

.chat-body {
  background: var(--chat-bg);
  padding: 16px 12px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-bubble {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  line-height: 1.4;
  position: relative;
  animation: fadeInUp 0.4s ease both;
}

.chat-bubble.user {
  align-self: flex-end;
  background: var(--green-light);
  border-radius: 8px 8px 0 8px;
}

.chat-bubble.bot {
  align-self: flex-start;
  background: var(--white);
  border-radius: 8px 8px 8px 0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.chat-bubble:nth-child(1) { animation-delay: 0.1s; }
.chat-bubble:nth-child(2) { animation-delay: 0.4s; }
.chat-bubble:nth-child(3) { animation-delay: 0.8s; }
.chat-bubble:nth-child(4) { animation-delay: 1.1s; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Section common ---- */
.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(37, 211, 102, 0.1);
  color: var(--green-dark);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 48px;
}

/* ---- Features ---- */
.features {
  padding: 100px 0;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: left;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 211, 102, 0.2);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 211, 102, 0.08);
  border-radius: 14px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ---- Groups section ---- */
.groups-section {
  padding: 100px 0;
  background: var(--bg-dark);
  color: var(--white);
}

.groups-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.groups-description {
  font-size: 1.1rem;
  opacity: 0.8;
  margin-bottom: 36px;
  line-height: 1.7;
}

.groups-section .section-badge {
  background: rgba(37, 211, 102, 0.2);
}

.groups-section .section-title {
  color: var(--white);
}

.groups-features-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.groups-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.groups-feature-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 211, 102, 0.15);
  border-radius: 12px;
}

.groups-feature-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.groups-feature-item p {
  font-size: 0.85rem;
  opacity: 0.7;
  line-height: 1.5;
}

.groups-visual .phone-mockup {
  box-shadow: var(--shadow-lg), 0 0 0 8px rgba(255,255,255,0.1);
}

.groups-visual .chat-bubble {
  color: var(--text);
}

/* ---- How it works ---- */
.how-it-works {
  padding: 100px 0;
  background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
  text-align: center;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
  margin-top: 48px;
}

.step {
  flex: 1;
  max-width: 280px;
  padding: 32px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--green);
  color: var(--white);
  font-size: 1.3rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.step-arrow {
  font-size: 1.5rem;
  color: var(--green);
  font-weight: 700;
  margin-top: 48px;
}

/* ---- Demo ---- */
.demo {
  padding: 100px 0;
  text-align: center;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.demo-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition);
}
.demo-card:hover {
  box-shadow: var(--shadow-lg);
}

.demo-label {
  padding: 12px 20px;
  background: var(--green-darker);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.demo-chat {
  background: var(--chat-bg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 120px;
}

/* ---- Waitlist ---- */
.waitlist {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--green-darker), var(--green-dark));
}

.waitlist-card {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  color: var(--white);
}

.waitlist-card h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.waitlist-card > p {
  font-size: 1.05rem;
  opacity: 0.85;
  margin-bottom: 32px;
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-group {
  display: flex;
  gap: 0;
  background: var(--white);
  border-radius: 50px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.input-icon {
  padding: 14px 0 14px 18px;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
}

#email-input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  outline: none;
  min-width: 0;
}
#email-input::placeholder { color: #9ca3af; }

.waitlist-form .btn {
  box-shadow: var(--shadow);
}

.waitlist-success {
  padding: 32px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  margin-top: 20px;
}

.success-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.waitlist-success h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.waitlist-success p {
  font-size: 0.95rem;
  opacity: 0.85;
}

.waitlist-error {
  margin-top: 12px;
  padding: 12px 16px;
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.waitlist-count {
  margin-top: 20px;
  font-size: 0.85rem;
  opacity: 0.65;
}

/* ---- Financial Help ---- */
.financial-help {
  padding: 100px 0;
  background: var(--bg);
  text-align: center;
}

.fh-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  text-align: left;
}

.fh-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition);
}

.fh-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 211, 102, 0.25);
}

.fh-accent {
  background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
  border-color: rgba(37, 211, 102, 0.2);
}

.fh-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 211, 102, 0.1);
  border-radius: 14px;
}

.fh-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.fh-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.55;
}

.fh-example {
  margin-top: 16px;
}

.fh-msg {
  background: var(--white);
  border-left: 3px solid var(--green);
  padding: 10px 14px;
  border-radius: 0 8px 8px 0;
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.45;
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}

.fh-accent .fh-msg {
  background: rgba(255,255,255,0.8);
}

/* ---- Education ---- */
.education {
  padding: 100px 0;
  background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
  text-align: center;
}

.edu-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
  text-align: left;
  margin-top: 48px;
}

.edu-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.edu-item:last-child { border-bottom: none; }

.edu-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--green);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.5px;
}

.edu-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.edu-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Progress bars */
.edu-bar-wrap { margin-top: 16px; display: flex; flex-direction: column; gap: 6px; }
.edu-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.edu-pct { font-weight: 700; }
.pct-needs { color: #ef4444; }
.pct-wants { color: #f59e0b; }
.pct-save  { color: var(--green-dark); }

.edu-bar {
  height: 8px;
  background: rgba(0,0,0,0.08);
  border-radius: 50px;
  overflow: hidden;
}

.edu-fill {
  height: 100%;
  border-radius: 50px;
  transition: width 1s ease;
}
.fill-needs { background: #ef4444; }
.fill-wants { background: #f59e0b; }
.fill-save  { background: var(--green); }

.phone-sm {
  width: 300px;
}

.edu-phone {
  position: sticky;
  top: 100px;
}

/* ---- Groups ---- */
.groups {
  padding: 100px 0;
  text-align: center;
}

.groups-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: start;
  margin-top: 48px;
  text-align: left;
}

.group-feat {
  display: flex;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.group-feat:last-child { border-bottom: none; }

.gf-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  font-size: 1.4rem;
  background: rgba(37, 211, 102, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.group-feat h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.group-feat p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Group chat demo */
.group-chat-demo {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.gc-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--green-darker);
  color: var(--white);
}

.gc-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.gc-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.gc-members {
  font-size: 0.72rem;
  opacity: 0.75;
}

.gc-body {
  background: var(--chat-bg);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.gc-msg {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.gc-sender {
  font-size: 0.72rem;
  color: var(--text-muted);
  padding-right: 4px;
}

.gc-sofi { background: #cfe2ff; }
.gc-lucas { background: #fde8d8; }

/* ---- Demo: audio & photo bubbles ---- */
.audio-bubble {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
}

.audio-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 24px;
}

.audio-wave span {
  display: block;
  width: 3px;
  background: var(--green-dark);
  border-radius: 3px;
  animation: waveAnim 1s ease-in-out infinite alternate;
}

.audio-wave span:nth-child(1)  { height: 6px;  animation-delay: 0.0s; }
.audio-wave span:nth-child(2)  { height: 14px; animation-delay: 0.1s; }
.audio-wave span:nth-child(3)  { height: 20px; animation-delay: 0.2s; }
.audio-wave span:nth-child(4)  { height: 10px; animation-delay: 0.3s; }
.audio-wave span:nth-child(5)  { height: 18px; animation-delay: 0.4s; }
.audio-wave span:nth-child(6)  { height: 8px;  animation-delay: 0.5s; }
.audio-wave span:nth-child(7)  { height: 16px; animation-delay: 0.6s; }
.audio-wave span:nth-child(8)  { height: 12px; animation-delay: 0.7s; }
.audio-wave span:nth-child(9)  { height: 20px; animation-delay: 0.8s; }
.audio-wave span:nth-child(10) { height: 6px;  animation-delay: 0.9s; }

@keyframes waveAnim {
  from { transform: scaleY(0.5); opacity: 0.6; }
  to   { transform: scaleY(1.0); opacity: 1.0; }
}

.audio-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.photo-bubble {
  padding: 6px;
}

.photo-preview {
  background: #f8f9fa;
  border-radius: 6px;
  overflow: hidden;
  width: 160px;
}

.photo-receipt {
  padding: 12px;
  font-family: 'Courier New', monospace;
  font-size: 0.75rem;
  border: 1px dashed #ccc;
  border-radius: 4px;
  background: var(--white);
  color: var(--text);
}

.receipt-line {
  text-align: center;
  margin-bottom: 4px;
  font-weight: 700;
  font-size: 0.8rem;
}

.receipt-line.sm {
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ---- Footer ---- */
.footer {
  padding: 32px 0;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-admin {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.4;
  transition: opacity var(--transition);
}
.footer-admin:hover { opacity: 1; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero { padding: 120px 0 60px; }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero h1 { font-size: 2.2rem; }
  .hero-subtitle { margin: 0 auto 28px; }

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

  .hero-visual { order: -1; }
  .phone-mockup { width: 280px; }

  .nav-links { display: none; }
  .btn-nav { display: none; }
  .mobile-menu-btn { display: flex; }

  .section-title { font-size: 1.8rem; }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }
  .step-arrow {
    transform: rotate(90deg);
    margin: 0;
  }

  .groups-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .groups-visual { order: -1; }

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

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

  .edu-layout {
    grid-template-columns: 1fr;
  }
  .edu-phone { display: none; }

  .groups-layout { grid-template-columns: 1fr; }
  .groups-demo { order: -1; }

  .footer-content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .input-group { border-radius: 16px; }
  .waitlist-form .btn { border-radius: 16px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .section-title { font-size: 1.5rem; }
  .phone-mockup { width: 260px; }

  .input-group {
    border-radius: 16px;
  }
}