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

:root {
  --primary: #0f9d8f;
  --primary-dark: #0b7a6f;
  --primary-light: #12b8a7;
  --primary-glow: rgba(15, 157, 143, 0.3);
  --secondary: #4f6278;
  --accent: #12b8a7;
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #eef1f5;
  --bg-dark: #000000;
  --bg-glass: rgba(255, 255, 255, 0.8);
  --text-primary: #122033;
  --text-secondary: #4f6278;
  --text-muted: #b8c6d4;
  --text-inverse: #ecf4fb;
  --border-color: #d0d8e0;
  --border-light: #e5e9ef;
  --shadow-sm: rgba(18, 32, 51, 0.06) 0px 10px 24px 0px;
  --shadow-md: rgba(15, 157, 143, 0.24) 0px 12px 24px 0px;
  --shadow-lg: rgba(15, 157, 143, 0.22) 0px 10px 20px 0px;
  --shadow-xl: rgba(18, 32, 51, 0.1) 20px 0px 40px 0px;
  --shadow-glow: rgba(15, 157, 143, 0.15) 0 0 20px;
  --radius-sm: 14px;
  --radius-md: 18px;
  --radius-lg: 22px;
  --radius-xl: 26px;
  --radius-2xl: 30px;
  --radius-full: 999px;
  --font-sans: 'Plus Jakarta Sans', 'Segoe UI Variable', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --glass-blur: blur(20px);
  --max-width: 1280px;
  --font-xs: 13.12px;
  --font-sm: 13.44px;
  --font-md: 13.6px;
  --font-lg: 14.08px;
  --font-xl: 14.4px;
  --font-2xl: 14.72px;
  --font-3xl: 15.04px;
  --font-4xl: 15.2px;
  --space-1: 1px;
  --space-2: 2px;
  --space-3: 6px;
  --space-4: 8px;
  --space-5: 10px;
  --space-6: 12px;
  --space-7: 13px;
  --space-8: 14px;
  --motion-instant: 200ms;
  --motion-fast: 220ms;
  --motion-normal: 240ms;
  --motion-slow: 280ms;
  --motion-slower: 300ms;
  --motion-step6: 320ms;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

.section { padding: 80px 0; }
.section-dark { background: var(--bg-secondary); }
.section-title { font-size: var(--font-4xl); font-weight: 700; text-align: center; margin-bottom: 12px; }
.section-subtitle { font-size: var(--font-xl); color: var(--text-secondary); text-align: center; max-width: 640px; margin: 0 auto 48px; }

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
  border-radius: var(--radius-full); font-weight: 600; font-size: var(--font-4xl);
  transition: var(--transition); position: relative; overflow: hidden;
}
.btn-primary {
  background: var(--primary);
  color: var(--text-inverse);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-glass); backdrop-filter: var(--glass-blur);
  color: var(--text-primary); border: 1px solid var(--border-color);
}
.btn-secondary:hover { border-color: var(--primary); transform: translateY(-1px); }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--text-inverse); transform: translateY(-1px); }
.btn-lg { padding: 16px 36px; font-size: var(--font-4xl); }
.btn-sm { padding: 8px 18px; font-size: var(--font-md); }

/* HEADER */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.85); backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(208,216,224,0.5);
  transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; max-width: var(--max-width); margin: 0 auto; padding: 0 20px;
}
.logo { font-size: var(--font-4xl); font-weight: 700; display: flex; align-items: center; gap: 8px; }
.logo-icon { width: 36px; height: 36px; background: var(--primary); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: var(--text-inverse); font-size: var(--font-4xl); font-weight: 700; }
.nav { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: var(--font-xl); font-weight: 500; color: var(--text-secondary); position: relative; padding: 4px 0; transition: var(--transition); }
.nav-link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--primary); transition: var(--transition); border-radius: 2px; }
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 100%; }
.search-bar {
  display: flex; align-items: center; background: var(--bg-tertiary);
  border-radius: var(--radius-full); padding: 8px 16px; gap: 8px;
  border: 1px solid transparent; transition: var(--transition); width: 240px;
}
.search-bar:focus-within { border-color: var(--primary); background: var(--bg-primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.search-bar input { border: none; background: none; outline: none; width: 100%; font-size: var(--font-xl); }
.search-bar svg { width: 18px; height: 18px; color: var(--text-muted); flex-shrink: 0; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* MOBILE MENU */
.mobile-menu {
  position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.98); backdrop-filter: var(--glass-blur);
  padding: 24px; display: none; flex-direction: column; gap: 8px; z-index: 999;
  overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { font-size: var(--font-4xl); padding: 12px 16px; border-radius: var(--radius-md); }
.mobile-menu .nav-link:hover { background: var(--bg-tertiary); }
.mobile-search { margin-bottom: 16px; }

/* FOOTER */
.footer {
  background: var(--bg-dark); color: var(--text-inverse); padding: 60px 0 0;
  position: relative;
}
.footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--accent), var(--primary), transparent);
  background-size: 200% 100%; animation: shimmer 3s linear infinite;
}
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: 40px; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.footer-col h3 { font-size: var(--font-4xl); font-weight: 700; margin-bottom: 20px; color: white; }
.footer-col p, .footer-col a { font-size: var(--font-xl); color: rgba(255,255,255,0.6); line-height: 2; transition: var(--transition); }
.footer-col a:hover { color: var(--primary-light); }
.footer-logo { font-size: var(--font-4xl); font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-desc { margin-bottom: 20px; line-height: 1.8; }
.social-links { display: flex; gap: 12px; }
.social-link {
  width: 40px; height: 40px; border-radius: var(--radius-md);
  background: rgba(255,255,255,0.1); display: flex; align-items: center;
  justify-content: center; transition: var(--transition); font-size: var(--font-4xl);
}
.social-link:hover { transform: translateY(-3px); }
.social-link.facebook:hover { background: #1877f2; }
.social-link.instagram:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.social-link.twitter:hover { background: #000; }
.social-link.linkedin:hover { background: #0a66c2; }
.newsletter-form { display: flex; gap: 8px; margin-top: 12px; }
.newsletter-form input {
  flex: 1; padding: 10px 16px; border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.1);
  color: white; font-size: var(--font-xl); outline: none; transition: var(--transition);
}
.newsletter-form input:focus { border-color: var(--primary); background: rgba(255,255,255,0.15); }
.newsletter-form input::placeholder { color: rgba(255,255,255,0.4); }
.newsletter-form button {
  padding: 10px 20px; border-radius: var(--radius-md);
  background: var(--primary);
  color: var(--text-inverse); font-weight: 600; font-size: var(--font-md); white-space: nowrap;
  transition: var(--transition);
}
.newsletter-form button:hover { background: var(--primary-dark); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px; padding: 20px; text-align: center; }
.footer-bottom p { font-size: var(--font-md); color: rgba(255,255,255,0.4); }

/* HERO */
.hero {
  padding: 140px 0 80px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #f5f7fa 0%, #eef1f5 50%, #f5f7fa 100%);
}
.hero-bg-blob {
  position: absolute; width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(15,157,143,0.08) 0%, transparent 70%);
  top: -200px; right: -200px; animation: blobFloat 8s ease-in-out infinite;
}
.hero-bg-blob:nth-child(2) { left: -200px; bottom: -200px; top: auto; right: auto; animation-delay: -4s; width: 500px; height: 500px; }
@keyframes blobFloat { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(30px, -30px) scale(1.1); } }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-content h1 { font-size: var(--font-4xl); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.hero-content p { font-size: var(--font-xl); color: var(--text-secondary); line-height: 1.7; margin-bottom: 32px; max-width: 520px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-3d-icons { position: relative; width: 320px; height: 320px; }
.hero-icon {
  position: absolute; width: 80px; height: 80px; border-radius: var(--radius-lg);
  background: var(--bg-glass); backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255,255,255,0.3); box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-4xl); animation: iconFloat 6s ease-in-out infinite;
}
.hero-icon:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; }
.hero-icon:nth-child(2) { top: 5%; right: 10%; animation-delay: -2s; }
.hero-icon:nth-child(3) { bottom: 15%; left: 15%; animation-delay: -4s; }
.hero-icon:nth-child(4) { bottom: 10%; right: 15%; animation-delay: -1s; }
.hero-icon:nth-child(5) { top: 50%; left: 50%; transform: translate(-50%, -50%); width: 100px; height: 100px; font-size: var(--font-4xl); animation-delay: -3s; }
@keyframes iconFloat {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  25% { transform: translateY(-15px) rotate(3deg); }
  50% { transform: translateY(-5px) rotate(-2deg); }
  75% { transform: translateY(-20px) rotate(2deg); }
}
.particles { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; overflow: hidden; }
.particle { position: absolute; width: 4px; height: 4px; background: var(--primary); border-radius: 50%; opacity: 0.3; animation: particleFloat 10s linear infinite; }
@keyframes particleFloat { 0% { transform: translateY(100vh) scale(0); opacity: 0; } 10% { opacity: 0.3; } 90% { opacity: 0.3; } 100% { transform: translateY(-10vh) scale(1); opacity: 0; } }

/* CATEGORIES */
.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.category-card {
  background: var(--bg-glass); backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); padding: 32px 24px;
  border: 1px solid var(--border-color); transition: var(--transition);
  position: relative; overflow: hidden; text-align: center;
}
.category-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); transform: scaleX(0); transition: var(--transition); }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl), var(--shadow-glow); border-color: var(--primary); }
.category-card:hover::before { transform: scaleX(1); }
.category-icon { width: 56px; height: 56px; border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(15,157,143,0.1), rgba(18,184,167,0.1)); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: var(--font-4xl); }
.category-card h3 { font-size: var(--font-4xl); font-weight: 700; margin-bottom: 8px; }
.category-card p { font-size: var(--font-xl); color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }

/* TOOL GRID */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.tool-card {
  background: var(--bg-glass); backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); padding: 24px; border: 1px solid var(--border-color);
  transition: var(--transition); position: relative; overflow: hidden;
}
.tool-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); transform: scaleX(0); transition: var(--transition); }
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl), var(--shadow-glow); border-color: var(--primary); }
.tool-card:hover::before { transform: scaleX(1); }
.tool-card-icon { width: 44px; height: 44px; border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(15,157,143,0.1), rgba(18,184,167,0.1)); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; font-size: var(--font-4xl); }
.tool-card h3 { font-size: var(--font-4xl); font-weight: 700; margin-bottom: 6px; }
.tool-card p { font-size: var(--font-md); color: var(--text-secondary); line-height: 1.5; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tool-card .btn { width: 100%; justify-content: center; }

/* BREADCRUMB */
.breadcrumb { padding: 88px 0 16px; background: var(--bg-secondary); border-bottom: 1px solid var(--border-color); }
.breadcrumb-list { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumb-list li { font-size: var(--font-md); color: var(--text-muted); }
.breadcrumb-list li a { color: var(--primary); transition: var(--transition); }
.breadcrumb-list li a:hover { text-decoration: underline; }
.breadcrumb-list li + li::before { content: '/'; margin-right: 8px; color: var(--text-muted); }

/* TOOL PAGE */
.tool-header { padding: 40px 0; }
.tool-header h1 { font-size: var(--font-4xl); font-weight: 700; margin-bottom: 8px; }
.tool-header p { color: var(--text-secondary); max-width: 640px; }
.tool-workspace {
  background: var(--bg-glass); backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-xl); border: 1px solid var(--border-color);
  padding: 32px; margin-bottom: 40px; box-shadow: var(--shadow-sm);
}
.drop-zone {
  border: 2px dashed var(--border-color); border-radius: var(--radius-lg);
  padding: 48px 24px; text-align: center; transition: var(--transition);
  cursor: pointer; position: relative;
}
.drop-zone:hover, .drop-zone.dragover { border-color: var(--primary); background: rgba(15,157,143,0.03); }
.drop-zone-icon { font-size: var(--font-4xl); margin-bottom: 12px; color: var(--text-muted); }
.drop-zone h3 { font-size: var(--font-4xl); font-weight: 600; margin-bottom: 6px; }
.drop-zone p { font-size: var(--font-xl); color: var(--text-secondary); }
.drop-zone input { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.tool-controls { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-top: 24px; }
.tool-controls label { font-size: var(--font-xl); font-weight: 600; color: var(--text-secondary); }
.tool-controls select, .tool-controls input[type="range"], .tool-controls input[type="number"] {
  padding: 8px 12px; border: 1px solid var(--border-color); border-radius: var(--radius-md);
  background: var(--bg-primary); font-size: var(--font-xl); outline: none; transition: var(--transition);
}
.tool-controls select:focus, .tool-controls input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.preview-area { margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.preview-box { border-radius: var(--radius-md); border: 1px solid var(--border-color); overflow: hidden; }
.preview-box-header { padding: 12px 16px; background: var(--bg-tertiary); font-size: var(--font-md); font-weight: 600; border-bottom: 1px solid var(--border-color); }
.preview-box-content { padding: 16px; min-height: 200px; display: flex; align-items: center; justify-content: center; background: repeating-conic-gradient(var(--bg-tertiary) 0% 25%, var(--bg-primary) 0% 50%) 0 0 / 20px 20px; }
.preview-box-content img, .preview-box-content canvas { max-width: 100%; max-height: 400px; border-radius: var(--radius-sm); }
.progress-bar { margin-top: 20px; height: 6px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; display: none; }
.progress-bar.active { display: block; }
.progress-bar-fill { height: 100%; background: var(--primary); border-radius: var(--radius-full); width: 0%; transition: width var(--motion-slower); }
.download-btn { margin-top: 20px; }

/* SEO CONTENT */
.seo-content { max-width: 800px; margin: 0 auto 60px; }
.seo-content h2 { font-size: var(--font-4xl); font-weight: 700; margin-top: 40px; margin-bottom: 16px; }
.seo-content h3 { font-size: var(--font-4xl); font-weight: 600; margin-top: 28px; margin-bottom: 12px; }
.seo-content p { font-size: var(--font-4xl); color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
.seo-content ul, .seo-content ol { font-size: var(--font-4xl); color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; padding-left: 24px; }
.seo-content li { margin-bottom: 8px; }
.seo-content ul li { list-style: disc; }
.seo-content ol li { list-style: decimal; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin: 24px 0; }
.feature-item { padding: 16px; border-radius: var(--radius-md); background: var(--bg-tertiary); border-left: 3px solid var(--primary); }
.feature-item strong { display: block; margin-bottom: 4px; font-size: var(--font-4xl); }
.feature-item span { font-size: var(--font-md); color: var(--text-secondary); }
.steps-list { counter-reset: step; }
.steps-list li { counter-increment: step; position: relative; padding-left: 44px; margin-bottom: 20px; }
.steps-list li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: var(--radius-full); background: var(--primary); color: var(--text-inverse); display: flex; align-items: center; justify-content: center; font-size: var(--font-md); font-weight: 700; }

/* FAQ ACCORDION */
.faq-list { max-width: 800px; margin: 24px auto 0; }
.faq-item { border: 1px solid var(--border-color); border-radius: var(--radius-md); margin-bottom: 8px; overflow: hidden; }
.faq-question { padding: 16px 20px; font-weight: 600; font-size: var(--font-4xl); display: flex; justify-content: space-between; align-items: center; cursor: pointer; transition: var(--transition); width: 100%; text-align: left; background: var(--bg-glass); }
.faq-question:hover { background: var(--bg-tertiary); }
.faq-question::after { content: '+'; font-size: var(--font-4xl); transition: var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question::after { content: '−'; }
.faq-answer { padding: 0 20px; max-height: 0; overflow: hidden; transition: max-height var(--motion-slower) ease, padding var(--motion-slower) ease; }
.faq-item.active .faq-answer { padding: 0 20px 16px; max-height: 300px; }
.faq-answer p { font-size: var(--font-xl); color: var(--text-secondary); line-height: 1.7; }

/* RELATED TOOLS */
.related-tools { padding: 60px 0; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.related-card {
  padding: 16px; border-radius: var(--radius-md); border: 1px solid var(--border-color);
  transition: var(--transition); text-align: center;
}
.related-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.related-card-icon { font-size: var(--font-4xl); margin-bottom: 8px; }
.related-card h4 { font-size: var(--font-xl); font-weight: 600; }

/* ABOUT PAGE */
.about-hero { padding: 120px 0 60px; text-align: center; background: linear-gradient(135deg, #f5f7fa, #eef1f5); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin: 48px 0; }
.stat-card { text-align: center; padding: 32px 16px; border-radius: var(--radius-lg); background: var(--bg-glass); backdrop-filter: var(--glass-blur); border: 1px solid var(--border-color); }
.stat-number { font-size: var(--font-4xl); font-weight: 700; color: var(--primary); }
.stat-label { font-size: var(--font-xl); color: var(--text-secondary); margin-top: 8px; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }

/* CONTACT PAGE */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin: 40px 0; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: var(--font-xl); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border-color);
  border-radius: var(--radius-md); font-size: var(--font-4xl); outline: none;
  transition: var(--transition); background: var(--bg-primary);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group .error-msg { font-size: var(--font-xs); color: #dc2626; margin-top: 4px; display: none; }
.form-group.error input, .form-group.error textarea { border-color: #dc2626; }
.form-group.error .error-msg { display: block; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-info-card { padding: 20px; border-radius: var(--radius-md); border: 1px solid var(--border-color); display: flex; gap: 16px; align-items: flex-start; }
.contact-info-card .icon { width: 44px; height: 44px; border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(15,157,143,0.1), rgba(18,184,167,0.1)); display: flex; align-items: center; justify-content: center; font-size: var(--font-4xl); flex-shrink: 0; }
.contact-info-card h4 { font-weight: 600; margin-bottom: 4px; }
.contact-info-card p { font-size: var(--font-xl); color: var(--text-secondary); }
.map-placeholder { width: 100%; height: 300px; border-radius: var(--radius-lg); background: var(--bg-tertiary); display: flex; align-items: center; justify-content: center; border: 1px solid var(--border-color); margin-top: 24px; }

/* PRIVACY & DISCLAIMER */
.legal-content { max-width: 800px; margin: 0 auto; padding: 120px 0 60px; }
.legal-content h1 { font-size: var(--font-4xl); margin-bottom: 8px; }
.legal-content .last-updated { color: var(--text-muted); font-size: var(--font-xl); margin-bottom: 32px; }
.legal-content h2 { font-size: var(--font-4xl); margin-top: 32px; margin-bottom: 12px; }
.legal-content p, .legal-content li { font-size: var(--font-4xl); color: var(--text-secondary); line-height: 1.8; margin-bottom: 12px; }
.legal-content ul, .legal-content ol { padding-left: 24px; }
.legal-content ul li { list-style: disc; }
.legal-content ol li { list-style: decimal; }

/* ANIMATIONS */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-left { opacity: 0; transform: translateX(-30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-left.visible { opacity: 1; transform: translateX(0); }
.fade-in-right { opacity: 0; transform: translateX(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-right.visible { opacity: 1; transform: translateX(0); }
.fade-in-up { opacity: 0; transform: translateY(40px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content p { margin: 0 auto 32px; }
  .hero-cta { justify-content: center; }
  .hero-visual { display: none; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav { display: none; }
  .hamburger { display: none !important; }
  .header-inner .logo { flex-shrink: 0; }
  .header-inner .search-bar { flex: 1; max-width: 200px; min-width: 0; }
  .header-inner .btn { flex-shrink: 0; }
  .search-bar { width: auto; }
  .footer-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: 1fr; }
  .preview-area { grid-template-columns: 1fr; }
  .hero { padding: 100px 0 60px; }
  .section { padding: 60px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .tool-workspace { padding: 20px; }
  .drop-zone { padding: 32px 16px; min-height: 160px; }
  .drop-zone.drag-over { min-height: 180px; }
  .newsletter-form { flex-direction: column; }
  .header-inner { height: 64px; }
  .mobile-menu { top: 64px; }
  .hamburger span { width: 22px; }
  .tool-controls { flex-wrap: wrap; }
  .tool-controls .btn { min-height: 44px; }
  .output-area { padding: 16px; }
  .file-info { flex-direction: column; align-items: flex-start; gap: 8px; }
}
@media (max-width: 480px) {
  .search-bar { width: 140px; }
  .hero-cta { flex-direction: column; }
  .btn-lg { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr; }
  .tool-controls { flex-direction: column; align-items: stretch; }
  .tool-controls .btn { width: 100%; justify-content: center; }
  .drop-zone { padding: 24px 12px; min-height: 130px; }
  .result-box { padding: 16px; }
  .section { padding: 40px 0; }
  .card { padding: 16px; }
}

/* Blog Cards */
.blog-card { background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); height: 100%; }
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: var(--primary-light); }
.blog-card-image { height: 200px; background-size: cover; background-position: center; background-color: var(--bg-tertiary); }
.blog-card-body { padding: 20px; }
.post-content h1, .post-content h2, .post-content h3 { margin-top: 28px; margin-bottom: 12px; color: var(--text-primary); font-weight: 700; }
.post-content h1 { font-size: var(--font-4xl); }
.post-content h2 { font-size: var(--font-4xl); }
.post-content h3 { font-size: var(--font-4xl); }
.post-content p { margin-bottom: 16px; line-height: 1.8; }
.post-content ul, .post-content ol { margin-bottom: 16px; padding-left: 24px; }
.post-content li { margin-bottom: 8px; }
.post-content img { max-width: 100%; border-radius: var(--radius-sm); margin: 24px 0; }
.post-content blockquote { border-left: 4px solid var(--primary-light); padding: 16px 20px; margin: 24px 0; background: var(--bg-tertiary); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-style: italic; }
.post-content a { color: var(--primary); text-decoration: underline; }
.post-content code { background: var(--bg-tertiary); padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }
.post-content pre { background: #122033; color: #ecf4fb; padding: 20px; border-radius: var(--radius-sm); overflow-x: auto; margin: 24px 0; }
.post-content pre code { background: none; padding: 0; color: inherit; }