/* ==========================================================================
   Lingojam - Pure CSS Design System & Theme Engine (Mobile-Optimized & Sticky Input)
   ========================================================================== */

:root {
  --primary-color: #ff007a;
  --primary-hover: #e0006b;
  --primary-light: rgba(255, 0, 122, 0.1);
  --secondary-color: #7928ca;
  --gradient-accent: linear-gradient(135deg, #ff007a 0%, #7928ca 100%);
  
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --card-border: #e9ecef;
  --text-main: #212529;
  --text-muted: #6c757d;
  --input-bg: #ffffff;
  --input-border: #ced4da;
  --input-focus: #ff007a;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --font-family: 'Work Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

[data-theme="dark"] {
  --bg-color: #0f1117;
  --card-bg: #181b25;
  --card-border: #2a2e3d;
  --text-main: #f1f3f5;
  --text-muted: #a0a6b5;
  --input-bg: #202431;
  --input-border: #32384a;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-hover);
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-logo img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  padding: 10px 14px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
}

.nav-link:hover, .nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 240px;
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 4px;
  z-index: 1010;
  animation: fadeIn 0.2s ease-out;
}

.dropdown:hover .dropdown-menu {
  display: flex;
}

.dropdown-item {
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.dropdown-item:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 1.1rem;
  min-width: 44px;
  min-height: 44px;
}

.theme-toggle-btn:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-color);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px 12px;
  min-width: 44px;
  min-height: 44px;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 40px 0 20px 0;
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
}

/* Generator Container */
.generator-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 30px;
  margin: 25px 0 40px 0;
  overflow: visible;
}

/* Sticky Top Input Wrapper */
.input-wrapper {
  position: sticky;
  top: 75px; /* Sticky right under navbar (70px + 5px gap) */
  z-index: 990;
  background-color: var(--card-bg);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.input-wrapper.is-stuck {
  border-color: var(--primary-color);
  box-shadow: 0 8px 25px rgba(255, 0, 122, 0.18);
}

.main-input {
  width: 100%;
  padding: 16px 20px;
  font-size: 1.2rem;
  font-family: inherit;
  background-color: var(--input-bg);
  border: 2px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.main-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.input-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.generator-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 25px;
  align-items: center;
  justify-content: space-between;
}

.tool-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-tool {
  background-color: var(--input-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  min-height: 44px;
}

.btn-tool:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.search-filter-bar {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 220px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 12px 16px 12px 40px;
  font-size: 0.95rem;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-full);
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
  min-height: 44px;
}

.search-input:focus {
  border-color: var(--primary-color);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.category-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.pill {
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  background-color: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.pill:hover, .pill.active {
  background: var(--gradient-accent);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(255, 0, 122, 0.3);
}

.decorator-select {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--input-border);
  background-color: var(--card-bg);
  color: var(--text-main);
  outline: none;
  min-height: 44px;
}

/* Font Cards Grid */
.font-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.font-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  transition: var(--transition);
  position: relative;
}

.font-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.font-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.font-name {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.star-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  transition: var(--transition);
  min-width: 36px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.star-btn.active {
  color: #ffb703;
}

.font-output {
  font-size: 1.3rem;
  word-break: break-word;
  color: var(--text-main);
  min-height: 40px;
  display: flex;
  align-items: center;
  user-select: all;
}

.font-card-footer {
  display: flex;
  justify-content: flex-end;
}

.btn-copy {
  background: var(--gradient-accent);
  color: #ffffff;
  border: none;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  min-height: 44px;
}

.btn-copy:hover {
  opacity: 0.92;
  transform: scale(1.03);
  box-shadow: 0 4px 14px rgba(255, 0, 122, 0.4);
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 2000;
}

.toast {
  background: #1e293b;
  color: #ffffff;
  padding: 14px 26px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp 0.3s ease-out, fadeOut 0.3s ease-in 2.5s forwards;
}

/* Back to Top Floating Button */
.back-to-top-btn {
  position: fixed;
  bottom: 85px;
  right: 25px;
  z-index: 1500;
  background: var(--gradient-accent);
  color: #ffffff;
  border: none;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  transition: var(--transition);
}

.back-to-top-btn:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 6px 20px rgba(255, 0, 122, 0.4);
}

/* SEO Article Section */
.article-section {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
}

.article-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 25px 0 15px 0;
}

.article-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 20px 0 10px 0;
}

.article-section p {
  color: var(--text-muted);
  margin-bottom: 15px;
  font-size: 1.02rem;
  line-height: 1.7;
}

.article-section ul {
  margin-left: 20px;
  margin-bottom: 20px;
  color: var(--text-muted);
}

.article-section li {
  margin-bottom: 8px;
}

/* Sleek Tag Cloud Footer */
.site-footer {
  background-color: var(--card-bg);
  border-top: 1px solid var(--card-border);
  padding: 35px 0 20px 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-brand-section {
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.footer-brand-section p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 8px;
}

.footer-tag-cloud {
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.tag-cloud-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-align: center;
}

.tag-chips-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-full);
  transition: var(--transition);
  text-decoration: none;
}

.tag-chip:hover {
  background: var(--gradient-accent);
  color: #ffffff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(255, 0, 122, 0.25);
}

.footer-legal-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.footer-legal-links a {
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-legal-links a:hover {
  color: var(--primary-color);
}

.footer-legal-links span {
  color: var(--card-border);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; visibility: hidden; }
}

/* Mobile Media Queries */
@media (max-width: 768px) {
  .input-wrapper {
    top: 70px;
    padding: 10px 12px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
    flex-direction: column;
    padding: 15px 20px;
    box-shadow: var(--shadow-lg);
  }

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

  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    padding-left: 15px;
  }

  .dropdown:hover .dropdown-menu {
    display: flex;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .generator-card {
    padding: 18px;
  }

  .font-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .article-section {
    padding: 24px;
  }

  .footer-links-group {
    flex-direction: column;
    gap: 24px;
  }
}

/* Contact Page Form Styles */
.contact-container {
  max-width: 760px;
  margin: 20px auto 50px auto;
  padding: 0 15px;
}

.contact-header {
  text-align: center;
  margin-bottom: 30px;
}

.contact-title {
  font-size: 2.4rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

.contact-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 580px;
  margin: 0 auto;
}

.contact-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.form-row {
  display: flex;
  gap: 20px;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-input {
  width: 100%;
  padding: 14px 18px;
  font-size: 0.95rem;
  font-family: inherit;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
  min-height: 48px;
}

.form-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(255, 0, 122, 0.15);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a8d9b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 42px;
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.btn-submit {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--gradient-accent);
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 18px rgba(255, 0, 122, 0.3);
  margin-top: 10px;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 0, 122, 0.45);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.contact-status {
  display: none;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  margin-top: 10px;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .contact-card {
    padding: 24px 20px;
    border-radius: 18px;
  }
  .form-row {
    flex-direction: column;
    gap: 22px;
  }
  .contact-title {
    font-size: 1.8rem;
  }
}