:root {
  --bg: #f1f1f1;
  --surface: #ffffff;
  --text: #1f1f1f;
  --muted: #666666;
  --line: #dcdcdc;
  --line-soft: #e8e8e8;
  --primary: #4a63f3;
  --primary-hover: #3d54d1;
  --dark: #2f3136;
  --container: 860px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

/* -- Header -- */
.site-header { background: var(--dark); color: #fff; }
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 700; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-logo {
  width: 34px; height: 34px; background: #11a8ff; color: #fff;
  border-radius: 6px; display: inline-flex; align-items: center;
  justify-content: center; font-size: 12px; font-weight: 700;
}
.main-nav { display: flex; align-items: center; gap: 18px; }
.main-nav a { color: #fff; font-size: 14px; font-weight: 600; text-decoration: none; }
.main-nav a:hover { text-decoration: underline; }
.main-nav a[aria-current="page"] { color: #11a8ff; }
.menu-toggle {
  display: none; width: 42px; height: 42px; padding: 0;
  border: 1px solid rgba(255,255,255,0.18); background: transparent;
  border-radius: 4px; align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.menu-toggle span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 999px; }

/* -- Hero -- */
.hero-section { padding: 36px 0 18px; }
.hero-inner h1 { margin: 0 0 10px; font-size: 40px; line-height: 1.15; }
.hero-text { margin: 0; color: var(--muted); font-size: 16px; }

/* -- Content -- */
.content-section { padding: 8px 0 60px; }

.content-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 32px;
}

.content-block {
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line-soft);
}
.content-block:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.content-block h2 {
  margin: 0 0 12px;
  font-size: 20px;
  color: var(--dark);
}

.content-block p {
  margin: 0 0 12px;
  color: #444;
  font-size: 15px;
}
.content-block p:last-child { margin-bottom: 0; }

.content-block a {
  color: var(--primary);
  font-weight: 600;
}

/* -- Tools grid (About) -- */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 6px;
}
.tool-card-link {
  text-decoration: none;
  color: var(--text);
  display: block;
}
.tool-card-link:hover .tool-card-inner {
  border-color: var(--primary);
  background: #f4f7ff;
}
.tool-card-inner {
  display: flex;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  background: #fafafa;
  border-radius: 4px;
  transition: border-color 0.15s, background 0.15s;
}
.tool-icon { font-size: 26px; flex-shrink: 0; line-height: 1; }
.tool-card-inner strong { display: block; font-size: 14px; margin-bottom: 4px; color: var(--dark); }
.tool-card-inner p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.5; }

/* -- Styled list (Terms) -- */
.styled-list {
  margin: 10px 0 14px;
  padding-left: 22px;
  color: #444;
  font-size: 15px;
}
.styled-list li { margin-bottom: 6px; }

/* -- Contact layout -- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: start;
}

.contact-form-col h2,
.contact-info-col h2 { margin: 0 0 8px; font-size: 20px; color: var(--dark); }

.contact-intro { margin: 0 0 20px; color: var(--muted); font-size: 14px; }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 700; color: var(--dark); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(74,99,243,0.1);
}
.form-group textarea { resize: vertical; min-height: 140px; }
.required { color: var(--primary); }
.form-note { margin: 0; font-size: 12px; color: var(--muted); }

.form-actions { margin-top: 4px; }

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 28px;
  border: 0;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
}
.primary-btn:hover { background: var(--primary-hover); text-decoration: none; }
.primary-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* Success */
.form-success {
  text-align: center;
  padding: 40px 20px;
  border: 1px solid #c3f0c8;
  background: #f0fff2;
  border-radius: 6px;
}
.success-icon {
  width: 56px; height: 56px;
  background: #22c55e;
  color: #fff;
  border-radius: 50%;
  font-size: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.form-success h3 { margin: 0 0 8px; font-size: 22px; color: var(--dark); }
.form-success p { margin: 0; color: var(--muted); font-size: 15px; }

/* Info blocks */
.info-blocks { display: flex; flex-direction: column; gap: 18px; margin-bottom: 28px; }
.info-block { display: flex; gap: 14px; align-items: flex-start; }
.info-block-icon { font-size: 24px; flex-shrink: 0; line-height: 1; margin-top: 2px; }
.info-block strong { display: block; font-size: 14px; color: var(--dark); margin-bottom: 4px; }
.info-block p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.55; }

/* FAQ block */
.faq-block { border-top: 1px solid var(--line-soft); padding-top: 22px; }
.faq-block h3 { margin: 0 0 16px; font-size: 16px; color: var(--dark); }
.faq-item { margin-bottom: 14px; }
.faq-item:last-child { margin-bottom: 0; }
.faq-item strong { display: block; font-size: 13px; color: var(--dark); margin-bottom: 3px; }
.faq-item p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.5; }

/* -- Footer -- */
.site-footer {
  background: #2f3136;
  color: #cbd5f5;
  padding: 50px 20px 30px;
  margin-top: 60px;
}
.footer-container {
  max-width: 1200px; margin: auto;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px;
}
.footer-column h4 { color: #fff; margin: 0 0 15px; font-size: 16px; }
.footer-column p { font-size: 14px; line-height: 1.6; margin: 0; }
.footer-column ul { list-style: none; padding: 0; margin: 0; }
.footer-column li { margin-bottom: 8px; }
.footer-column a { color: #cbd5f5; text-decoration: none; font-size: 14px; }
.footer-column a:hover { color: #fff; }
.footer-column a[aria-current="page"] { color: #11a8ff; }
.footer-bottom {
  text-align: center; margin-top: 40px; font-size: 13px;
  border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px;
}

.hidden { display: none !important; }

/* -- Responsive -- */
@media (max-width: 860px) {
  .tools-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .header-inner {
    min-height: auto; padding: 14px 0;
    display: grid; grid-template-columns: 1fr auto;
    align-items: center; gap: 14px;
  }
  .menu-toggle { display: inline-flex; }
  .main-nav {
    display: none; grid-column: 1 / -1; width: 100%;
    flex-direction: column; align-items: flex-start; gap: 12px; padding-top: 6px;
  }
  .main-nav.is-open { display: flex; }
  .hero-inner h1 { font-size: 28px; }
  .content-card { padding: 20px 18px; }
}

.content-inner a {
  color: #2f6fed;
  text-decoration: none;
  font-weight: 600;
}

.content-inner a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}