:root {
    --bg: #061820;
    --surface: #0B2330;
    --surface-2: #11303F;
    --accent: #00E5C7;
    --accent-dim: #00B39C;
    --accent-glow: rgba(0,229,199,0.15);
    --gold: #FFD89E;
    --coral: #FF6B6B;
    --white: #F0F5F5;
    --gray: #5A7A8A;
    --gray-light: #8AACBB;
    --radius: 16px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    background: var(--bg);
    color: var(--white);
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden;
    min-height: 100vh;
  }

  body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
  }

  .glow {
    position: fixed;
    width: 600px; height: 600px;
    border-radius: 50%;
    filter: blur(150px);
    pointer-events: none;
    z-index: 0;
  }
  .glow-1 { background: var(--accent); top: -200px; left: -100px; opacity: 0.12; }
  .glow-2 { background: #0077B6; bottom: -200px; right: -100px; opacity: 0.1; }
  .glow-3 { background: #FF6B9D; top: 60%; left: 30%; opacity: 0.03; width: 800px; height: 800px; }

  /* ── Nav ── */
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 48px;
    position: relative; z-index: 10;
    animation: fadeDown 0.8s ease both;
  }
  .logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.55rem;
    letter-spacing: -0.03em;
    color: var(--white);
    text-decoration: none;
  }
  .logo em {
    font-style: normal;
    color: var(--accent);
  }
  nav a { color: var(--gray-light); text-decoration: none; font-size: 0.9rem; transition: color 0.3s; font-weight: 400; }
  nav a:hover { color: var(--white); }
  .nav-links { display: flex; gap: 32px; align-items: center; }

  /* ── Hero ── */
  .hero {
    max-width: 920px;
    margin: 0 auto;
    padding: 80px 32px 40px;
    text-align: center;
    position: relative; z-index: 10;
  }
  .badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--surface);
    border: 1px solid rgba(0,229,199,0.12);
    padding: 9px 22px; border-radius: 100px;
    font-size: 0.8rem; font-weight: 400;
    color: var(--accent);
    margin-bottom: 40px;
    animation: fadeUp 0.8s ease 0.2s both;
  }
  .badge-dot {
    width: 6px; height: 6px;
    background: var(--accent); border-radius: 50%;
    animation: pulse 1.5s ease infinite;
  }

  h1 {
    font-family: 'Fraunces', serif;
    font-weight: 800;
    font-size: clamp(2.8rem, 7vw, 5.2rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
    animation: fadeUp 0.8s ease 0.35s both;
  }
  h1 .highlight {
    background: linear-gradient(135deg, var(--accent), #00B4D8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .subtitle {
    font-size: 1.2rem;
    color: var(--gray-light); font-weight: 300;
    max-width: 540px; margin: 0 auto 48px;
    line-height: 1.7;
    animation: fadeUp 0.8s ease 0.5s both;
  }

  /* ── Form ── */
  .waitlist-form {
    display: flex; gap: 12px;
    max-width: 500px; margin: 0 auto;
    animation: fadeUp 0.8s ease 0.65s both;
  }
  .waitlist-form input {
    flex: 1;
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
    padding: 18px 24px;
    color: var(--white);
    font-family: 'Outfit', sans-serif; font-size: 1rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
  }
  .waitlist-form input::placeholder { color: var(--gray); }
  .waitlist-form input:focus {
    border-color: rgba(0,229,199,0.3);
    box-shadow: 0 0 0 4px rgba(0,229,199,0.06);
  }
  .waitlist-form button {
    background: var(--accent); color: var(--bg);
    border: none; border-radius: 14px;
    padding: 18px 32px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem; font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.3s;
    white-space: nowrap;
  }
  .waitlist-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,229,199,0.25);
  }
  .waitlist-form button:active { transform: translateY(0); }

  .form-note {
    font-size: 0.8rem; color: var(--gray);
    margin-top: 16px;
    animation: fadeUp 0.8s ease 0.8s both;
  }
  .success-msg {
    display: none;
    background: rgba(0,229,199,0.08);
    border: 1px solid rgba(0,229,199,0.2);
    border-radius: 14px;
    padding: 20px 28px;
    color: var(--accent); font-weight: 500;
    max-width: 500px; margin: 0 auto;
    animation: scaleIn 0.4s ease;
  }

  .counter {
    display: flex; align-items: center; justify-content: center;
    gap: 12px; margin-top: 48px;
    animation: fadeUp 0.8s ease 0.9s both;
  }
  .avatars { display: flex; }
  .avatar {
    width: 36px; height: 36px; border-radius: 50%;
    border: 2px solid var(--bg); margin-left: -10px;
  }
  .avatar:first-child { margin-left: 0; }
  .avatar-1 { background: linear-gradient(135deg, #FF6B6B, #EE5A24); }
  .avatar-2 { background: linear-gradient(135deg, #4834d4, #686de0); }
  .avatar-3 { background: linear-gradient(135deg, #00b894, #00cec9); }
  .avatar-4 { background: linear-gradient(135deg, #fdcb6e, #e17055); }
  .counter-text { font-size: 0.9rem; color: var(--gray-light); }
  .counter-text strong { color: var(--white); font-weight: 600; }

  /* ── How It Works ── */
  .section-header {
    text-align: center;
    margin-bottom: 60px;
  }
  .section-header h2 {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 2.4rem;
    letter-spacing: -0.02em; margin-bottom: 12px;
  }
  .section-header p {
    color: var(--gray-light); font-size: 1rem; font-weight: 300;
    letter-spacing: 0.01em;
  }

  .how-section {
    max-width: 1100px;
    margin: 100px auto 0;
    padding: 0 32px;
    position: relative; z-index: 10;
  }
  .steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .step {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: var(--radius);
    padding: 40px 32px;
    transition: transform 0.3s, border-color 0.3s;
  }
  .step:hover {
    transform: translateY(-4px);
    border-color: rgba(0,229,199,0.12);
  }
  .step-number {
    width: 40px; height: 40px; border-radius: 12px;
    background: rgba(0,229,199,0.1); color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Fraunces', serif; font-weight: 800; font-size: 1.1rem;
    margin-bottom: 24px;
  }
  .step h3 {
    font-family: 'Fraunces', serif; font-weight: 600;
    font-size: 1.25rem; margin-bottom: 12px;
  }
  .step p {
    color: var(--gray-light); font-size: 0.92rem;
    line-height: 1.65; font-weight: 300;
  }

  /* ── Tiers Interactive Widget ── */
  .tiers-section {
    max-width: 1100px;
    margin: 100px auto 0;
    padding: 0 32px;
    position: relative; z-index: 10;
  }
  .tiers-widget {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 24px;
    padding: 48px;
    overflow: hidden;
    position: relative;
  }
  .tiers-widget::before {
    content: '';
    position: absolute;
    top: -50%; right: -30%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at 60% 20%, rgba(0,229,199,0.03), transparent 50%);
    pointer-events: none;
  }
  .tw-header {
    text-align: center;
    margin-bottom: 48px;
    position: relative;
  }
  .tw-header h2 {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 2.4rem;
    letter-spacing: -0.02em; margin-bottom: 10px;
  }
  .tw-header p {
    color: var(--gray-light); font-size: 1rem; font-weight: 300;
  }

  /* Tier selector tabs */
  .tw-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 44px;
    position: relative;
  }
  .tw-tab {
    background: var(--surface-2);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 12px;
    padding: 14px 24px;
    cursor: pointer;
    transition: all 0.35s ease;
    text-align: center;
    min-width: 110px;
    position: relative;
    overflow: hidden;
  }
  .tw-tab::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(0,229,199,0.08), rgba(0,180,216,0.04));
    opacity: 0;
    transition: opacity 0.35s ease;
  }
  .tw-tab:hover { border-color: rgba(0,229,199,0.15); transform: translateY(-2px); }
  .tw-tab.active {
    border-color: rgba(0,229,199,0.35);
    box-shadow: 0 4px 24px rgba(0,229,199,0.1);
    transform: translateY(-2px);
  }
  .tw-tab.active::before { opacity: 1; }
  .tw-tab-icon {
    font-size: 1.3rem;
    margin-bottom: 6px;
    position: relative;
  }
  .tw-tab-name {
    font-size: 0.7rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--gray-light);
    position: relative;
    transition: color 0.35s;
  }
  .tw-tab.active .tw-tab-name { color: var(--white); }

  /* Progress track */
  .tw-progress-wrap {
    max-width: 700px;
    margin: 0 auto 44px;
    position: relative;
  }
  .tw-progress-track {
    height: 6px;
    background: var(--surface-2);
    border-radius: 100px;
    position: relative;
    overflow: hidden;
  }
  .tw-progress-fill {
    height: 100%;
    border-radius: 100px;
    transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.4s ease;
    width: 8%;
  }
  .tw-progress-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.7rem;
    color: var(--gray);
    font-weight: 500;
  }
  .tw-progress-labels span {
    transition: color 0.3s;
  }
  .tw-progress-labels span.active-label {
    color: var(--accent);
    font-weight: 700;
  }

  /* Detail card */
  .tw-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
  }
  .tw-detail-left { text-align: center; }
  .tw-amount-display {
    font-family: 'Fraunces', serif;
    font-weight: 800;
    font-size: 4.5rem;
    line-height: 1;
    transition: all 0.4s ease;
    margin-bottom: 6px;
  }
  .tw-amount-display span {
    font-size: 2rem;
    vertical-align: top;
    margin-right: 2px;
  }
  .tw-amount-label {
    font-size: 0.8rem;
    color: var(--gray-light);
    font-weight: 400;
    margin-bottom: 20px;
  }
  .tw-tier-badge-lg {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: all 0.35s ease;
  }
  .tw-detail-right {
    display: flex; flex-direction: column; gap: 14px;
  }
  .tw-perk {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 14px 18px;
    background: rgba(255,255,255,0.02);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.03);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateX(10px);
  }
  .tw-perk.visible {
    opacity: 1;
    transform: translateX(0);
  }
  .tw-perk-icon {
    font-size: 1.1rem; flex-shrink: 0; margin-top: 1px;
  }
  .tw-perk-text {
    font-size: 0.88rem; line-height: 1.5;
  }
  .tw-perk-text strong {
    display: block;
    font-weight: 600;
    margin-bottom: 2px;
  }
  .tw-perk-text span {
    color: var(--gray-light); font-weight: 300; font-size: 0.82rem;
  }

  /* Example purchase tags */
  .tw-examples {
    display: flex; flex-wrap: wrap; gap: 8px;
    justify-content: center;
    margin-top: 16px;
  }
  .tw-example-tag {
    background: var(--surface-2);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: 0.72rem;
    color: var(--gray-light);
    font-weight: 400;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(6px);
  }
  .tw-example-tag.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ── Payback Demo ── */
  .demo-section {
    max-width: 1100px;
    margin: 100px auto;
    padding: 0 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative; z-index: 10;
  }
  .demo-content h2 {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 2.6rem;
    line-height: 1.1; letter-spacing: -0.02em;
    margin-bottom: 20px;
  }
  .demo-content p {
    color: var(--gray-light);
    font-size: 1rem; line-height: 1.7; font-weight: 300;
    margin-bottom: 32px;
  }
  .stats-row { display: flex; gap: 12px; }
  .stat-pill {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 12px;
    padding: 14px 20px; flex: 1; text-align: center;
  }
  .stat-pill .val {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 1.3rem; color: var(--accent);
  }
  .stat-pill .label {
    font-size: 0.7rem; color: var(--gray);
    margin-top: 4px; text-transform: uppercase; letter-spacing: 0.06em;
  }

  /* Phone mockup */
  .phone-mockup {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 28px;
    padding: 16px;
    max-width: 340px;
    margin: 0 auto;
    box-shadow: 0 24px 80px rgba(0,0,0,0.3);
  }
  .phone-screen {
    background: var(--bg);
    border-radius: 18px;
    padding: 28px 20px;
    min-height: 420px;
  }
  .phone-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 28px;
  }
  .phone-greeting {
    font-size: 0.8rem; color: var(--gray-light); font-weight: 300;
  }
  .phone-name {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 1.2rem;
  }
  .phone-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #00B4D8);
  }
  .phone-balance-label {
    font-size: 0.7rem; color: var(--gray);
    text-transform: uppercase; letter-spacing: 0.1em;
    margin-bottom: 6px;
  }
  .phone-balance {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 2.4rem;
    margin-bottom: 4px;
  }
  .phone-tier-tag {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.7rem; color: var(--accent); font-weight: 500;
    margin-bottom: 28px;
  }
  .phone-tier-tag svg { width: 12px; height: 12px; }
  .phone-divider {
    height: 1px; background: rgba(255,255,255,0.04);
    margin: 0 -20px 20px;
  }
  .phone-section-label {
    font-size: 0.7rem; color: var(--gray);
    text-transform: uppercase; letter-spacing: 0.1em;
    margin-bottom: 14px;
  }

  .phone-installment {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
  }
  .phone-installment:last-child { border-bottom: none; }
  .pi-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  }
  .pi-dot.paid { background: var(--accent); }
  .pi-dot.upcoming { background: var(--gold); }
  .pi-dot.pending { background: var(--gray); }
  .pi-info { flex: 1; }
  .pi-label { font-size: 0.82rem; font-weight: 500; }
  .pi-date { font-size: 0.7rem; color: var(--gray); }
  .pi-amount { font-weight: 600; font-size: 0.85rem; }
  .pi-status {
    font-size: 0.65rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.06em;
    padding: 3px 8px; border-radius: 6px;
  }
  .pi-status.paid { background: rgba(0,229,199,0.1); color: var(--accent); }
  .pi-status.upcoming { background: rgba(255,216,158,0.1); color: var(--gold); }
  .pi-status.pending { background: rgba(90,122,138,0.15); color: var(--gray-light); }

  /* ── Trust Features ── */
  .features {
    max-width: 1100px;
    margin: 0 auto 100px;
    padding: 0 32px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    position: relative; z-index: 10;
  }
  .card {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: var(--radius);
    padding: 40px 32px;
    transition: transform 0.3s, border-color 0.3s;
  }
  .card:hover {
    transform: translateY(-4px);
    border-color: rgba(0,229,199,0.12);
  }
  .card-icon {
    width: 52px; height: 52px; border-radius: 14px;
    background: rgba(0,229,199,0.08);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; margin-bottom: 24px;
  }
  .card h3 {
    font-family: 'Fraunces', serif;
    font-weight: 600; font-size: 1.25rem; margin-bottom: 12px;
  }
  .card p {
    color: var(--gray-light); font-size: 0.92rem;
    line-height: 1.65; font-weight: 300;
  }

  /* ── CTA Banner ── */
  .cta-banner {
    max-width: 900px;
    margin: 0 auto 80px;
    padding: 0 32px;
    position: relative; z-index: 10;
  }
  .cta-inner {
    background: linear-gradient(135deg, rgba(0,229,199,0.06), rgba(0,180,216,0.04));
    border: 1px solid rgba(0,229,199,0.12);
    border-radius: 24px;
    padding: 56px 48px;
    text-align: center;
  }
  .cta-inner h2 {
    font-family: 'Fraunces', serif;
    font-weight: 800; font-size: 2.2rem;
    letter-spacing: -0.02em; margin-bottom: 12px;
  }
  .cta-inner p {
    color: var(--gray-light); font-size: 1rem; font-weight: 300;
    margin-bottom: 32px;
  }
  .cta-inner .waitlist-form { animation: none; }

  /* ── Footer ── */
  footer {
    text-align: center;
    padding: 40px 32px;
    color: var(--gray); font-size: 0.8rem;
    position: relative; z-index: 10;
    border-top: 1px solid rgba(255,255,255,0.04);
  }
  footer a { color: var(--gray-light); text-decoration: none; transition: color 0.3s; }
  footer a:hover { color: var(--accent); }

  /* ── Animations ── */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeDown {
    from { opacity: 0; transform: translateY(-16px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
  }
  @keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
  }

  /* ── Responsive ── */
  @media (max-width: 768px) {
    nav { padding: 20px 24px; }
    .nav-links { display: none; }
    .hero { padding: 60px 20px 40px; }
    .waitlist-form { flex-direction: column; }
    .steps { grid-template-columns: 1fr; }
    .features { grid-template-columns: 1fr; }
    .tiers-widget { padding: 32px 20px; }
    .tw-header h2 { font-size: 1.8rem; }
    .tw-tabs { flex-wrap: wrap; }
    .tw-tab { min-width: 80px; padding: 12px 16px; }
    .tw-detail { grid-template-columns: 1fr; gap: 28px; }
    .tw-amount-display { font-size: 3.2rem; }
    .demo-section { grid-template-columns: 1fr; gap: 40px; }
    .demo-content h2 { font-size: 2rem; }
    .cta-inner { padding: 40px 24px; }
    .cta-inner h2 { font-size: 1.6rem; }
    .phone-mockup { max-width: 100%; }
  }