/* ============================================
   pages.css — LinguaKeys
   Nav, Footer, About, Contact, FAQ, Legal pages
   ============================================ */

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.nav-logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  color: var(--text2);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255,107,53,0.1);
}

.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent2)) !important;
  color: white !important;
  font-weight: 600 !important;
  padding: 7px 18px !important;
  border-radius: 8px !important;
}

.nav-cta:hover {
  opacity: 0.9;
  background: linear-gradient(135deg, var(--accent), var(--accent2)) !important;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  width: 38px;
  height: 38px;
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  gap: 4px;
}

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

.nav-mobile a {
  color: var(--text2);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-mobile a:hover,
.nav-mobile a.active {
  color: var(--text);
  background: rgba(255,107,53,0.1);
}

.nav-mobile .nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent2)) !important;
  color: white !important;
  text-align: center;
  margin-top: 4px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 48px 24px 24px;
  margin-top: 60px;
}

.footer-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.footer-brand .nav-logo { margin-bottom: 12px; }
.footer-tagline {
  color: var(--text3);
  font-size: 13px;
  line-height: 1.7;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text3);
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col ul a {
  color: var(--text2);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}

.footer-col ul a:hover { color: var(--accent); }

.footer-bottom {
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  color: var(--text3);
  font-size: 12px;
}

.dmca-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text3);
  text-decoration: none;
  transition: all 0.2s;
}

.dmca-badge:hover { border-color: var(--accent); color: var(--accent); }

/* ============================================
   PAGE HERO (common for inner pages)
   ============================================ */
.page-hero {
  text-align: center;
  padding: 60px 20px 40px;
  max-width: 700px;
  margin: 0 auto;
}

.page-hero h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--text) 40%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}

.page-hero p {
  color: var(--text2);
  font-size: 16px;
  line-height: 1.7;
}

/* ============================================
   CONTENT CARD
   ============================================ */
.content-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.content-card h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.content-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent2);
  margin: 20px 0 8px;
}

.content-card p {
  color: var(--text2);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 12px;
}

.content-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.content-card ul li {
  color: var(--text2);
  font-size: 14px;
  padding-left: 20px;
  position: relative;
  line-height: 1.7;
}

.content-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 12px;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 900px;
  margin: 0 auto 20px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color 0.2s;
}

.feature-card:hover { border-color: var(--accent); }

.feature-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.how-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--bg3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.step-num {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.step-content p {
  font-size: 13px;
  color: var(--text2);
  margin: 0;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.use-case {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text2);
  transition: border-color 0.2s;
}

.use-case:hover { border-color: var(--accent); color: var(--text); }
.use-case span { font-size: 20px; }

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text3);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.captcha-box {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.captcha-check {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--accent);
}

.captcha-label {
  font-size: 14px;
  color: var(--text2);
}

.submit-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  align-self: flex-start;
}

.submit-btn:hover { opacity: 0.9; transform: translateY(-1px); }

.success-msg {
  display: none;
  background: rgba(0,212,170,0.1);
  border: 1px solid var(--success);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  color: var(--success);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
}

/* ============================================
   FAQ PAGE
   ============================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item.open { border-color: var(--accent); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  gap: 12px;
  user-select: none;
}

.faq-icon {
  font-size: 18px;
  color: var(--accent);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  display: none;
  padding: 0 22px 18px;
  color: var(--text2);
  font-size: 14px;
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.faq-item.open .faq-answer { display: block; }

/* ============================================
   RESPONSIVE NAV & PAGES
   ============================================ */
@media (max-width: 768px) {
  .navbar { padding: 0 16px; height: 56px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-tagline { max-width: 100%; }

  .page-hero h1 { font-size: 30px; }
  .page-hero p { font-size: 14px; }
  .page-hero { padding: 40px 16px 28px; }

  .content-card { padding: 22px 18px; }

  .about-features { grid-template-columns: 1fr; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .navbar { height: 52px; }
  .nav-logo-text { font-size: 18px; }
  .nav-logo-icon { width: 30px; height: 30px; font-size: 15px; }

  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .page-hero h1 { font-size: 26px; }
  .content-card { padding: 16px 14px; border-radius: 12px; }
  .submit-btn { width: 100%; text-align: center; }
}