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

/* fix: CSS display rules must not override [hidden] */
[hidden] { display: none !important; }

:root {
  --bg:          #0b1120;
  --bg-2:        #111827;
  --surface:     rgba(255,255,255,0.055);
  --surface-2:   rgba(255,255,255,0.09);
  --border:      rgba(255,255,255,0.1);
  --border-2:    rgba(255,255,255,0.16);

  --blue:        #2563eb;
  --blue-light:  #3b82f6;
  --sky:         #0ea5e9;
  --purple:      #7c3aed;
  --teal:        #0d9488;
  --amber:       #d97706;
  --rose:        #e11d48;
  --green:       #16a34a;

  --text-1:      #f8fafc;
  --text-2:      #b0bec5;
  --text-3:      #6b7a8d;

  --grad-primary: linear-gradient(135deg, var(--blue) 0%, var(--sky) 100%);
  --grad-text:    linear-gradient(135deg, #60a5fa 0%, #38bdf8 50%, #a78bfa 100%);

  --radius-sm:   10px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --radius-xl:   32px;

  --shadow-card: 0 1px 3px rgba(0,0,0,.4), 0 8px 32px rgba(0,0,0,.3);
  --shadow-btn:  0 4px 24px rgba(37,99,235,.45);

  --font: 'Inter', system-ui, sans-serif;
  --transition: 200ms cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Utilities ──────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

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

/* ── Nav ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; inset-inline: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(6,11,24,0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-1);
  text-decoration: none;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: var(--radius-md);
  background: var(--grad-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 2px 12px rgba(37,99,235,.35);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-btn);
}

/* ── Hero ───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100dvh;
  padding: 120px 24px 80px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}
.orb-1 {
  width: 650px; height: 650px;
  background: #1d4ed8;
  top: -250px; right: -180px;
  animation: orbFloat 12s ease-in-out infinite;
}
.orb-2 {
  width: 420px; height: 420px;
  background: #6d28d9;
  bottom: -60px; left: -120px;
  animation: orbFloat 16s ease-in-out infinite reverse;
}
.orb-3 {
  width: 320px; height: 320px;
  background: #0284c7;
  top: 45%; right: 18%;
  animation: orbFloat 20s ease-in-out infinite;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  33%       { transform: translate(30px, -20px); }
  66%       { transform: translate(-20px, 20px); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(37,99,235,.15);
  border: 1px solid rgba(37,99,235,.3);
  color: #93c5fd;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 28px;
}

.hero-h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 560px;
}

/* ── Form ───────────────────────────────────────────── */
.hero-form { margin-bottom: 20px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  padding: 7px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.06);
}

.form-row input[type="email"] {
  flex: 1;
  padding: 14px 18px;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-1);
  font-size: 1rem;
  font-family: var(--font);
  text-align: right;
  min-width: 0;
}

.form-row input[type="email"]::placeholder { color: var(--text-3); }

.form-row button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: calc(var(--radius-lg) - 6px);
  border: none;
  background: var(--grad-primary);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  white-space: nowrap;
  transition: box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 2px 16px rgba(37,99,235,.45), inset 0 1px 0 rgba(255,255,255,.15);
}

.form-row button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(37,99,235,.6), inset 0 1px 0 rgba(255,255,255,.15);
}

.form-row button:active { transform: translateY(0); }

.form-row button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-arrow { flex-shrink: 0; transition: transform var(--transition); }
.form-row button:hover .btn-arrow { transform: translateX(-4px); }

.spinner { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-hint {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--text-3);
}

/* ── Alerts ─────────────────────────────────────────── */
.success-banner,
.error-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-top: 16px;
}

.success-banner {
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.25);
  color: #86efac;
}

.success-banner strong { color: #4ade80; display: block; margin-bottom: 2px; }
.success-banner p { font-size: 0.875rem; color: #86efac; }

.error-banner {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.25);
  color: #fca5a5;
  font-size: 0.9rem;
}

/* ── Trust bar ──────────────────────────────────────── */
.trust-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-3);
}

.trust-sep {
  width: 1px;
  height: 16px;
  background: var(--border-2);
}

/* ── Preview card ───────────────────────────────────── */
.preview-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.preview-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle, rgba(37,99,235,.18) 0%, transparent 70%);
  pointer-events: none;
}

.preview-card {
  width: 100%;
  max-width: 420px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-xl);
  overflow: hidden;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  animation: cardFloat 8s ease-in-out infinite;
}

@keyframes cardFloat {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

.preview-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.preview-dots {
  display: flex;
  gap: 6px;
}
.preview-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border-2);
}
.preview-dots span:nth-child(1) { background: rgba(239,68,68,.5); }
.preview-dots span:nth-child(2) { background: rgba(234,179,8,.5); }
.preview-dots span:nth-child(3) { background: rgba(34,197,94,.5); }

.preview-title {
  font-size: 0.8rem;
  color: var(--text-3);
  font-weight: 500;
}

.preview-body { padding: 20px; display: flex; flex-direction: column; gap: 16px; }

.preview-chapter {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}
.preview-chapter:hover {
  background: var(--surface-2);
  border-color: var(--border-2);
}

.ch-num {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--blue-light);
  background: rgba(37,99,235,.15);
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}

.ch-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 3px;
}

.ch-sub {
  font-size: 0.78rem;
  color: var(--text-3);
  line-height: 1.5;
}

.preview-pages {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-3);
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

/* ── Stats bar ──────────────────────────────────────── */
.stats-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
}

.stats-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 40px;
}

.stat-num {
  font-size: 2rem;
  font-weight: 900;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-3);
  font-weight: 500;
}

.stat-div {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── Sections shared ────────────────────────────────── */
.section-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 100px 24px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 16px;
}

.section-h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-1);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 56px;
}

/* ── Benefits ───────────────────────────────────────── */
.benefits { background: var(--bg); }

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.benefit-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 2px 16px rgba(0,0,0,.25);
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.benefit-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
}

.benefit-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}

.benefit-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.benefit-icon--blue   { background: rgba(37,99,235,.15);  color: #60a5fa; }
.benefit-icon--purple { background: rgba(124,58,237,.15); color: #a78bfa; }
.benefit-icon--teal   { background: rgba(13,148,136,.15); color: #2dd4bf; }
.benefit-icon--amber  { background: rgba(217,119,6,.15);  color: #fcd34d; }
.benefit-icon--rose   { background: rgba(225,29,72,.15);  color: #fb7185; }
.benefit-icon--green  { background: rgba(22,163,74,.15);  color: #4ade80; }

/* ── How it works ───────────────────────────────────── */
.how {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.step-num {
  font-size: 3rem;
  font-weight: 900;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.04em;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}

.step-connector {
  width: 80px;
  height: 1px;
  background: linear-gradient(to left, transparent, var(--border-2), transparent);
  margin: 28px 20px 0;
  flex-shrink: 0;
}

/* ── Testimonials ───────────────────────────────────── */
.testimonials { background: var(--bg); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.testi-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 2px 16px rgba(0,0,0,.25);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.testi-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
}

.testi-card--featured {
  background: linear-gradient(135deg, rgba(37,99,235,.12) 0%, rgba(124,58,237,.08) 100%);
  border-color: rgba(37,99,235,.25);
}

.testi-stars {
  display: flex;
  gap: 3px;
}

.testi-text {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.75;
  flex: 1;
}

.testi-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.testi-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.testi-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-1);
}

.testi-role {
  font-size: 0.78rem;
  color: var(--text-3);
  margin-top: 2px;
}

/* ── CTA section ────────────────────────────────────── */
.cta-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(37,99,235,.15) 0%, transparent 65%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
  padding: 100px 24px;
  text-align: center;
}

.cta-badge {
  display: inline-block;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.25);
  color: #4ade80;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}

.cta-h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text-1);
}

.cta-sub {
  font-size: 1rem;
  color: var(--text-2);
  margin-bottom: 40px;
  line-height: 1.7;
}

.cta-form .form-row {
  background: rgba(255,255,255,0.07);
}

.success-banner--dark {
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.2);
}

/* ── Footer ─────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-2);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-3);
}

/* ── Responsive ─────────────────────────────────────── */
@media (min-width: 960px) {
  .hero {
    grid-template-columns: 1.1fr 0.9fr;
    min-height: 100dvh;
    padding: 120px 48px 80px;
    gap: 48px;
  }
  .hero-inner { max-width: none; }
}

@media (min-width: 1200px) {
  .hero { padding-inline: 80px; }
  .section-inner { padding-inline: 48px; }
}

/* Tablet */
@media (max-width: 959px) {
  .hero {
    padding-top: 100px;
    padding-bottom: 60px;
    text-align: center;
  }
  .hero-inner { margin: 0 auto; }
  .hero-sub { margin-inline: auto; }
  .trust-bar { justify-content: center; }
  .form-hint { justify-content: center; }
  .preview-wrap { margin-top: 16px; }
  .section-inner { padding-block: 72px; }
  .section-sub { margin-bottom: 40px; }
}

/* Mobile */
@media (max-width: 640px) {
  .nav-inner { padding-inline: 16px; }
  .nav-cta { padding: 8px 14px; font-size: 0.82rem; }

  .hero { padding: 88px 20px 56px; }
  .hero-h1 { font-size: 2rem; }
  .hero-badge { font-size: 0.75rem; }
  .hero-sub { font-size: 0.95rem; }

  .form-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: transparent;
    border: none;
    padding: 0;
    backdrop-filter: none;
  }
  .form-row input[type="email"] {
    padding: 14px 18px;
    background: rgba(255,255,255,.06);
    border: 1px solid var(--border-2);
    border-radius: var(--radius-md);
    min-height: 52px;
  }
  .form-row button {
    width: 100%;
    justify-content: center;
    min-height: 52px;
    border-radius: var(--radius-md);
  }

  .preview-card { max-width: 100%; }

  .stats-inner { padding: 20px 16px; gap: 0; }
  .stat-item { padding: 14px 16px; }
  .stat-div { height: 28px; }
  .stat-num { font-size: 1.6rem; }

  .section-inner { padding: 56px 20px; }
  .section-h2 { font-size: 1.6rem; }
  .section-sub { font-size: 0.9rem; margin-bottom: 32px; }

  .benefits-grid { grid-template-columns: 1fr; gap: 14px; }
  .benefit-card { padding: 22px 20px; }

  .steps { flex-direction: column; gap: 28px; }
  .step-connector { display: none; }
  .step { flex-direction: row; align-items: flex-start; gap: 16px; }
  .step-num { font-size: 2rem; min-width: 48px; }

  .testimonials-grid { grid-template-columns: 1fr; gap: 14px; }
  .testi-card { padding: 22px 20px; }

  .cta-inner { padding: 72px 20px; }
  .cta-h2 { font-size: 1.7rem; }

  .footer-inner { flex-direction: column; text-align: center; gap: 8px; }
}

/* ── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}