/* ============================================================
   EdiPDF — Minimal Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
  /* Brand — lighter blue */
  --blue-50:  #f0f5ff;
  --blue-100: #e0eaff;
  --blue-200: #c7d9fe;
  --blue-400: #6b9ff8;
  --blue-500: #4f7ef7;   /* primary */
  --blue-600: #3a6ae8;   /* hover */
  --blue-700: #2a55cc;   /* dark */

  /* Neutrals */
  --gray-0:   #ffffff;
  --gray-50:  #f8f9fb;
  --gray-100: #f1f3f6;
  --gray-150: #eaedf1;
  --gray-200: #e2e6ec;
  --gray-300: #cbd2db;
  --gray-400: #9aa4b2;
  --gray-500: #6b7787;
  --gray-600: #4b5465;
  --gray-700: #2e3748;
  --gray-900: #141924;

  /* Utility */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --shadow-sm: 0 1px 4px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.07), 0 1px 3px rgba(0,0,0,.04);
  --transition: .15s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gray-50);
  color: var(--gray-700);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

main { flex: 1; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   HEADER
   ============================================================ */
header {
  background: var(--gray-0);
  border-bottom: 1px solid var(--gray-150);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-900);
  text-decoration: none;
  letter-spacing: -.01em;
  white-space: nowrap;
}

.logo-img {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  text-decoration: none;
  color: var(--gray-500);
  font-size: 13.5px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--gray-900);
  background: var(--gray-100);
}

.nav-links a.active {
  color: var(--blue-500);
  background: var(--blue-50);
}

.nav-cta {
  background: var(--blue-500) !important;
  color: var(--gray-0) !important;
  padding: 6px 14px !important;
  border-radius: var(--radius-xs) !important;
  font-weight: 600 !important;
  font-size: 13px !important;
  transition: background var(--transition) !important;
}

.nav-cta:hover {
  background: var(--blue-600) !important;
  color: var(--gray-0) !important;
}

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

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--gray-600);
  border-radius: 2px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: var(--gray-0);
  border-bottom: 1px solid var(--gray-150);
  text-align: center;
  padding: 72px 24px 64px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--blue-50);
  color: var(--blue-500);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 11px;
  border-radius: 99px;
  margin-bottom: 24px;
  border: 1px solid var(--blue-100);
  letter-spacing: .03em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(26px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--gray-900);
  max-width: 720px;
  margin: 0 auto 14px;
  letter-spacing: -.025em;
}

.hero h1 span {
  color: var(--blue-500);
}

.hero h3 {
  font-size: clamp(14px, 1.8vw, 17px);
  font-weight: 400;
  color: var(--gray-400);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.hero-cta-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: background var(--transition), border-color var(--transition),
              color var(--transition), box-shadow var(--transition);
}

.btn-primary {
  background: var(--blue-500);
  color: var(--gray-0);
  border-color: var(--blue-500);
}

.btn-primary:hover {
  background: var(--blue-600);
  border-color: var(--blue-600);
}

.btn-secondary {
  background: var(--gray-0);
  color: var(--gray-700);
  border-color: var(--gray-200);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  border-color: var(--blue-200);
  color: var(--blue-600);
}

.btn-outline {
  background: transparent;
  color: var(--blue-500);
  border-color: var(--blue-200);
}

.btn-outline:hover {
  background: var(--blue-50);
  border-color: var(--blue-400);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 99px;
  letter-spacing: -.01em;
  box-shadow: 0 2px 8px rgba(79,126,247,.25);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-lg::after {
  content: '\2192';
  margin-left: 8px;
  display: inline-block;
  transition: transform var(--transition);
}

.btn-lg:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(79,126,247,.35);
}

.btn-lg:hover::after {
  transform: translateX(3px);
}

.hero-status {
  margin-top: 18px;
  font-size: 12px;
  color: var(--gray-400);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.status-dot { color: #22c55e; font-size: 9px; }

/* --- Trust badges --- */
.trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  margin-top: 32px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
  position: relative;
}

.badge + .badge::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 14px;
  background: var(--gray-200);
}

.badge-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: .7;
}

/* ============================================================
   AD BANNERS
   ============================================================ */
.ad-banner {
  background: var(--gray-100);
  border: 1px dashed var(--gray-200);
  border-radius: var(--radius-md);
  text-align: center;
  padding: 20px;
  color: var(--gray-300);
  font-size: 11px;
}

.ad-wrap {
  padding: 28px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

/* ============================================================
   FEATURE SECTIONS
   ============================================================ */
.section {
  padding: 72px 24px;
}

.section-alt  { background: var(--gray-0); }
.section-gray { background: var(--gray-50); border-top: 1px solid var(--gray-150); border-bottom: 1px solid var(--gray-150); }

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.section-inner.reverse { direction: rtl; }
.section-inner.reverse > * { direction: ltr; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: white;
  background: linear-gradient(to right, white, var(--blue-50));
  color: var(--blue-600);
  border: 1px solid var(--blue-100);
  border-radius: 99px;
  padding: 4px 14px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  box-shadow: 0 2px 5px rgba(79, 126, 247, 0.08);
  position: relative;
}

.section-label::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--blue-500);
  border-radius: 50%;
  display: inline-block;
}

.section-body h2 {
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--gray-900);
  margin-bottom: 12px;
  line-height: 1.25;
}

.section-body p {
  font-size: 15px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 22px;
}

.section-body p b { color: var(--gray-700); font-weight: 600; }

.section-sub {
  font-size: 12px !important;
  color: var(--blue-500) !important;
  font-weight: 500 !important;
  margin-top: 10px !important;
  margin-bottom: 0 !important;
  display: flex;
  align-items: center;
  gap: 5px;
}

.inline-icon {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2.5;
  flex-shrink: 0;
}

.section-visual {
  background: var(--gray-100);
  border: 1px solid var(--gray-150);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  line-height: 0;
}

.section-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-section {
  padding: 20px 20px;
  background: var(--gray-0);
  background: radial-gradient(circle at top right, var(--blue-50), var(--gray-0));
  color: var(--gray-900);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--gray-150);
}

.how-section h2 {
  text-align: center;
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 20px;
  color: var(--gray-900);
}

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

.step {
  position: relative;
  text-align: left;
  padding: 40px 32px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--shadow-sm);
}

.step:hover {
  background: var(--gray-0);
  border-color: var(--blue-200);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.step-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--blue-600);
  background: var(--blue-50);
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.05em;
}

.step-icon {
  width: 44px;
  height: 44px;
  color: var(--blue-500);
  background: var(--blue-50);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  transition: transform 0.3s ease;
}

.step:hover .step-icon {
  transform: scale(1.1) rotate(-5deg);
  background: var(--blue-100);
  color: var(--blue-600);
}

.step-icon svg {
  width: 100%;
  height: 100%;
}

.step h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--gray-900);
  letter-spacing: -.02em;
  line-height: 1.2;
}

.step p {
  font-size: 15px;
  color: var(--gray-500);
  line-height: 1.6;
  margin: 0;
}

.how-cta {
  text-align: center;
  margin-top: 40px;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-section {
  padding: 72px 24px;
  background: var(--gray-0);
  border-top: 1px solid var(--gray-150);
}

.faq-section h2 {
  text-align: center;
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 40px;
  color: var(--gray-900);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

details {
  background: var(--gray-0);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition);
}

details[open] {
  border-color: var(--blue-200);
}

summary {
  list-style: none;
  cursor: pointer;
  padding: 15px 18px;
  font-weight: 500;
  font-size: 14px;
  color: var(--gray-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  user-select: none;
}

summary::-webkit-details-marker { display: none; }

summary::after {
  content: '+';
  font-size: 18px;
  font-weight: 300;
  color: var(--blue-400);
  flex-shrink: 0;
  transition: transform var(--transition);
}

details[open] summary::after { transform: rotate(45deg); }

.faq-answer {
  padding: 0 18px 16px;
  font-size: 13.5px;
  color: var(--gray-500);
  line-height: 1.7;
}

.faq-answer b { color: var(--gray-700); font-weight: 600; }
.faq-answer a { color: var(--blue-500); }

/* ============================================================
   INNER PAGE HERO
   ============================================================ */
.page-hero {
  padding: 60px 24px 48px;
  text-align: center;
  background: var(--gray-0);
  border-bottom: 1px solid var(--gray-150);
}

.page-hero h1 {
  font-size: clamp(22px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -.025em;
  color: var(--gray-900);
  max-width: 780px;
  margin: 0 auto 14px;
  line-height: 1.2;
}

.page-hero h3 {
  font-size: clamp(14px, 1.6vw, 16px);
  font-weight: 400;
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto 30px;
  line-height: 1.65;
}

.page-hero .trust-badges { margin-top: 24px; }

/* ============================================================
   HOW-TO STEPS (inner pages)
   ============================================================ */
.howto-section {
  padding: 64px 24px;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-150);
  border-bottom: 1px solid var(--gray-150);
}

.howto-section h2 {
  text-align: center;
  font-size: clamp(18px, 2.5vw, 28px);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 40px;
  color: var(--gray-900);
}

.howto-steps {
  max-width: 840px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.howto-step {
  background: var(--gray-0);
  border: 1px solid var(--gray-150);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.howto-step:hover {
  border-color: var(--blue-200);
  box-shadow: var(--shadow-sm);
}

.howto-step-num {
  width: 34px;
  height: 34px;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-500);
  flex-shrink: 0;
}

.howto-step-body h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.howto-step-body p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.55;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--gray-0);
  border-top: 1px solid var(--gray-150);
  padding: 0 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 22px 0;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links a {
  text-decoration: none;
  color: var(--gray-400);
  font-size: 13px;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--gray-700); }

.footer-copy {
  font-size: 11.5px;
  color: var(--gray-300);
  width: 100%;
  text-align: center;
  padding: 14px 0;
  border-top: 1px solid var(--gray-150);
}

/* ============================================================
   CONTENT PAGES (About, Privacy, etc.)
   ============================================================ */
.content-section {
  padding: 64px 24px 80px;
  background: var(--gray-0);
}

.content-inner {
  max-width: 720px;
  margin: 0 auto;
}

.text-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 36px 0 16px;
  color: var(--gray-900);
}

.text-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-600);
  margin-bottom: 20px;
}

.text-content ul {
  margin-bottom: 24px;
  padding-left: 20px;
}

.text-content li {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--gray-600);
  margin-bottom: 10px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 57px;
    left: 0;
    right: 0;
    background: var(--gray-0);
    flex-direction: column;
    padding: 10px 16px 16px;
    border-bottom: 1px solid var(--gray-150);
    box-shadow: var(--shadow-md);
    gap: 2px;
  }

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

  .nav-links a {
    padding: 10px 12px;
    font-size: 14px;
    width: 100%;
    border-radius: var(--radius-xs);
  }

  header { position: relative; }

  .hero { padding: 48px 20px 44px; }

  .section-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .section-inner.reverse { direction: ltr; }

  .section-visual { min-height: unset; }

  .steps { grid-template-columns: 1fr; gap: 12px; }

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

  .trust-badges { gap: 6px; }
  .badge { font-size: 12px; padding: 5px 11px; }

  .section { padding: 52px 20px; }
  .how-section { padding: 52px 20px; }
  .faq-section { padding: 52px 20px; }
  .howto-section { padding: 48px 20px; }
  .page-hero { padding: 44px 20px 36px; }

  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-cta-wrap { flex-direction: column; align-items: stretch; }
  .btn-lg { justify-content: center; }
  .nav { padding: 0 16px; }
}