/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: #F8FAFC;
  color: #1E293B;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #06B6D4; text-decoration: none; transition: color 0.2s; }
a:hover { color: #0891B2; }
ul { list-style: none; }

/* ===== VARIABLES ===== */
:root {
  --primary: #0F172A;
  --secondary: #1E293B;
  --accent: #06B6D4;
  --accent2: #22C55E;
  --bg: #F8FAFC;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --text: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.14);
  --gradient: linear-gradient(135deg, #0F172A 0%, #1E3A5F 50%, #0F172A 100%);
}

/* ===== LAYOUT ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-alt { background: #fff; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5 { font-family: 'Syne', 'Inter', sans-serif; line-height: 1.2; color: var(--primary); font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; font-family: 'Inter', sans-serif; }
p { margin-bottom: 1rem; color: var(--text-muted); }
.lead { font-size: 1.2rem; color: var(--text-muted); line-height: 1.8; }

/* ===== HEADER ===== */
.site-header {
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.3rem; color: #fff !important; font-family: 'Syne', sans-serif; }
.logo-icon { font-size: 1.5rem; }
.logo-text { background: linear-gradient(90deg, #06B6D4, #22C55E); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav > a, .nav-dropdown-trigger {
  color: rgba(255,255,255,0.8); padding: 8px 14px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500; transition: all 0.2s; cursor: pointer;
}
.main-nav > a:hover, .nav-dropdown-trigger:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: var(--primary); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius); padding: 8px; min-width: 260px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
  opacity: 0; pointer-events: none; transform: translateY(-8px);
  transition: all 0.2s; box-shadow: var(--shadow-lg); z-index: 100;
}
.nav-dropdown:hover .dropdown-menu { opacity: 1; pointer-events: all; transform: translateY(0); }
.dropdown-menu a { color: rgba(255,255,255,0.75) !important; padding: 8px 10px; border-radius: 8px; font-size: 0.82rem; transition: all 0.15s; white-space: nowrap; }
.dropdown-menu a:hover { background: rgba(6,182,212,0.15); color: #06B6D4 !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all 0.3s; display: block; }

/* ===== BREADCRUMBS ===== */
.breadcrumb-bar { background: #F1F5F9; border-bottom: 1px solid var(--border); padding: 10px 0; }
.breadcrumbs { display: flex; align-items: center; gap: 6px; font-size: 0.82rem; flex-wrap: wrap; }
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs span { color: var(--text-muted); }
.bc-sep { color: var(--text-light); }

/* ===== HERO ===== */
.hero {
  background: var(--gradient);
  padding: 100px 0 80px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, rgba(6,182,212,0.12) 0%, transparent 70%);
}
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 820px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.3); color: #06B6D4; padding: 6px 14px; border-radius: 999px; font-size: 0.82rem; font-weight: 600; margin-bottom: 24px; }
.hero h1 { color: #fff; font-size: clamp(2.2rem, 6vw, 4rem); margin-bottom: 20px; }
.hero h1 .accent-text { background: linear-gradient(90deg, #06B6D4, #22C55E); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero .lead { color: rgba(255,255,255,0.7); font-size: 1.15rem; margin-bottom: 36px; }
.hero-search { max-width: 540px; margin: 0 auto 40px; position: relative; }
.hero-search input {
  width: 100%; padding: 16px 140px 16px 20px;
  border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.08);
  border-radius: 50px; color: #fff; font-size: 1rem; outline: none;
  transition: all 0.2s; backdrop-filter: blur(8px);
}
.hero-search input::placeholder { color: rgba(255,255,255,0.4); }
.hero-search input:focus { border-color: var(--accent); background: rgba(255,255,255,0.12); }
.hero-search button {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: var(--accent); color: #fff; border: none; border-radius: 50px;
  padding: 10px 24px; font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.hero-search button:hover { background: #0891B2; }
.hero-cats { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.hero-cat { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); color: rgba(255,255,255,0.7); padding: 7px 16px; border-radius: 50px; font-size: 0.82rem; cursor: pointer; transition: all 0.2s; }
.hero-cat:hover, .hero-cat.active { background: rgba(6,182,212,0.2); border-color: rgba(6,182,212,0.4); color: #06B6D4; }
.hero-stats { display: flex; justify-content: center; gap: 40px; margin-top: 50px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat .stat-num { font-size: 1.8rem; font-weight: 800; color: #fff; font-family: 'Syne', sans-serif; display: block; }
.hero-stat .stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.5); }

/* ===== SECTION HEADERS ===== */
.section-header { text-align: center; margin-bottom: 50px; }
.section-header .eyebrow { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--accent); margin-bottom: 12px; display: block; }
.section-header h2 { margin-bottom: 14px; }
.section-header p { max-width: 600px; margin: 0 auto; font-size: 1.05rem; }

/* ===== TOOL CARDS ===== */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.tool-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; transition: all 0.25s; position: relative; overflow: hidden;
  box-shadow: var(--shadow);
}
.tool-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent2)); opacity: 0; transition: opacity 0.25s; }
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(6,182,212,0.3); }
.tool-card:hover::before { opacity: 1; }
.tool-card-icon { font-size: 2.4rem; margin-bottom: 16px; display: block; }
.tool-card-cat { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); margin-bottom: 8px; display: block; }
.tool-card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--primary); }
.tool-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }
.tool-card-link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-size: 0.85rem; font-weight: 600; transition: gap 0.2s; }
.tool-card-link:hover { gap: 10px; color: var(--accent); }

/* ===== WHY CHOOSE ===== */
.why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 28px; margin-bottom: 48px; }
.why-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.why-icon { font-size: 2rem; margin-bottom: 14px; display: block; }
.why-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.why-card p { font-size: 0.88rem; margin: 0; }
.why-content { max-width: 860px; margin: 0 auto; }
.why-content h3 { font-size: 1.15rem; margin: 28px 0 12px; }
.why-content p { color: var(--text-muted); }

/* ===== CONTENT SECTIONS ===== */
.content-section { padding: 80px 0; }
.content-section.alt { background: #fff; }
.content-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.content-text h2 { margin-bottom: 20px; }
.content-text h3 { margin: 24px 0 12px; font-size: 1.1rem; color: var(--primary); }
.content-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 0.95rem; }
.content-text ul { margin: 0 0 16px 0; }
.content-text ul li { padding: 5px 0 5px 20px; position: relative; font-size: 0.9rem; color: var(--text-muted); }
.content-text ul li::before { content: '✓'; position: absolute; left: 0; color: var(--accent2); font-weight: 700; }
.content-visual { background: var(--primary); border-radius: var(--radius-lg); padding: 36px; min-height: 320px; display: flex; flex-direction: column; justify-content: center; }
.content-visual .stat-box { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius); padding: 20px; margin-bottom: 14px; }
.content-visual .stat-box h4 { color: rgba(255,255,255,0.6); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; font-family: 'Inter', sans-serif; }
.content-visual .stat-box .big-stat { font-size: 2rem; font-weight: 800; color: #fff; font-family: 'Syne', sans-serif; }
.content-visual .stat-box .big-stat .accent { color: var(--accent); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; background: var(--card); }
.faq-question { padding: 20px 24px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 0.95rem; color: var(--primary); transition: background 0.2s; user-select: none; }
.faq-question:hover { background: #F8FAFC; }
.faq-toggle { font-size: 1.2rem; transition: transform 0.3s; color: var(--accent); flex-shrink: 0; margin-left: 14px; }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: all 0.35s ease; font-size: 0.92rem; color: var(--text-muted); }
.faq-answer p { padding-bottom: 20px; margin: 0; }
.faq-item.open .faq-answer { max-height: 400px; padding-top: 0; }
.faq-item.open .faq-toggle { transform: rotate(45deg); }

/* ===== CTA ===== */
.cta-section {
  background: var(--gradient); padding: 80px 0; text-align: center;
  position: relative; overflow: hidden;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(6,182,212,0.15) 0%, transparent 70%); }
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { color: #fff; margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.7); max-width: 540px; margin: 0 auto 36px; }
.btn-group { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: 50px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: all 0.2s; border: none; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #0891B2; transform: translateY(-2px); color: #fff; }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-accent { background: var(--accent2); color: #fff; }
.btn-accent:hover { background: #16A34A; transform: translateY(-2px); color: #fff; }

/* ===== FOOTER ===== */
.site-footer { background: var(--primary); padding: 60px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 50px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { color: rgba(255,255,255,0.5); font-size: 0.88rem; line-height: 1.7; margin-bottom: 16px; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.3); color: #06B6D4; padding: 4px 10px; border-radius: 50px; font-size: 0.72rem; font-weight: 700; }
.footer-col h4 { color: rgba(255,255,255,0.9); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 16px; font-family: 'Inter', sans-serif; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.5); font-size: 0.88rem; transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.07); padding: 22px 0; }
.footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.82rem; text-align: center; margin: 0; }

/* ===== TOOL PAGES ===== */
.tool-hero { background: var(--gradient); padding: 60px 0; position: relative; overflow: hidden; }
.tool-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 70% 70% at 30% 50%, rgba(6,182,212,0.1) 0%, transparent 70%); }
.tool-hero .container { position: relative; z-index: 1; }
.tool-hero-inner { max-width: 680px; }
.tool-hero-icon { font-size: 3rem; margin-bottom: 16px; display: block; }
.tool-hero h1 { color: #fff; font-size: clamp(1.7rem, 4vw, 2.8rem); margin-bottom: 12px; }
.tool-hero p { color: rgba(255,255,255,0.7); font-size: 1.05rem; margin-bottom: 0; }

/* ===== TOOL INTERFACE ===== */
.tool-interface { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); overflow: hidden; }
.tool-interface-header { padding: 20px 28px; border-bottom: 1px solid var(--border); background: #F8FAFC; display: flex; align-items: center; gap: 10px; }
.tool-interface-header h2 { font-size: 1.05rem; color: var(--primary); margin: 0; font-family: 'Inter', sans-serif; }
.tool-interface-body { padding: 28px; }
.tool-section { padding: 60px 0; }
.tool-content { max-width: 860px; }
.tool-content h2 { margin-bottom: 16px; }
.tool-content h3 { margin: 28px 0 12px; font-size: 1.1rem; }
.tool-content p { font-size: 0.95rem; color: var(--text-muted); }
.tool-content ul, .tool-content ol { padding-left: 20px; margin-bottom: 16px; }
.tool-content ul li, .tool-content ol li { margin-bottom: 8px; font-size: 0.92rem; color: var(--text-muted); }
.tool-content ul li::marker { color: var(--accent); }

/* FORM ELEMENTS */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
.form-control {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--border);
  border-radius: var(--radius); font-size: 0.95rem; color: var(--text);
  background: #fff; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(6,182,212,0.1); }
textarea.form-control { resize: vertical; min-height: 160px; line-height: 1.7; }
select.form-control { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.char-counter { font-size: 0.75rem; color: var(--text-muted); text-align: right; margin-top: 4px; }
.char-counter.warn { color: #F59E0B; }
.char-counter.over { color: #EF4444; }

/* RESULT BOX */
.result-box { background: #F0FDF4; border: 1.5px solid #86EFAC; border-radius: var(--radius); padding: 20px; margin-top: 20px; display: none; }
.result-box.error { background: #FEF2F2; border-color: #FCA5A5; }
.result-box.visible { display: block; }
.result-box pre { white-space: pre-wrap; word-break: break-word; font-family: 'Courier New', monospace; font-size: 0.88rem; color: var(--text); line-height: 1.7; }
.result-actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.btn-copy { background: var(--accent); color: #fff; border: none; padding: 8px 18px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.btn-copy:hover { background: #0891B2; }
.btn-reset { background: var(--border); color: var(--text-muted); border: none; padding: 8px 18px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.btn-reset:hover { background: #CBD5E1; }

/* PROGRESS */
.progress-bar { background: var(--border); border-radius: 50px; height: 6px; overflow: hidden; margin-top: 10px; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 50px; transition: width 0.5s ease; }

/* STATS ROW */
.stats-row { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; flex: 1; min-width: 100px; text-align: center; box-shadow: var(--shadow); }
.stat-card .stat-val { font-size: 1.8rem; font-weight: 800; color: var(--primary); font-family: 'Syne', sans-serif; display: block; }
.stat-card .stat-name { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* BENEFITS/FEATURES GRID */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; margin-top: 24px; }
.feature-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); transition: all 0.2s; }
.feature-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.feature-item .f-icon { font-size: 1.8rem; margin-bottom: 12px; display: block; }
.feature-item h4 { font-size: 0.95rem; margin-bottom: 8px; }
.feature-item p { font-size: 0.85rem; margin: 0; }

/* STEPS */
.steps-list { counter-reset: step; }
.step-item { display: flex; gap: 20px; margin-bottom: 28px; align-items: flex-start; }
.step-num { counter-increment: step; width: 40px; height: 40px; min-width: 40px; background: linear-gradient(135deg, var(--accent), var(--accent2)); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 0.9rem; font-family: 'Syne', sans-serif; }
.step-body h4 { font-size: 1rem; margin-bottom: 6px; font-family: 'Inter', sans-serif; }
.step-body p { font-size: 0.88rem; margin: 0; color: var(--text-muted); }

/* RELATED TOOLS */
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.related-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; transition: all 0.2s; display: block; }
.related-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(6,182,212,0.3); }
.related-card .r-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.related-card h4 { font-size: 0.9rem; color: var(--primary); margin-bottom: 6px; }
.related-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

/* SHARE */
.share-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 8px; }
.share-btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 8px; font-size: 0.82rem; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s; text-decoration: none; }
.share-btn.twitter { background: #1DA1F2; color: #fff; }
.share-btn.linkedin { background: #0077B5; color: #fff; }
.share-btn.copy-link { background: var(--border); color: var(--text); }
.share-btn:hover { opacity: 0.85; transform: translateY(-1px); }

/* PROCESSING SPINNER */
.spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* TABS */
.tabs-nav { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab-btn { padding: 10px 18px; background: none; border: none; border-bottom: 2.5px solid transparent; cursor: pointer; font-size: 0.9rem; font-weight: 600; color: var(--text-muted); transition: all 0.2s; margin-bottom: -1px; }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* FILE UPLOAD */
.file-drop {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 48px 20px;
  text-align: center; cursor: pointer; transition: all 0.2s; background: #F8FAFC;
}
.file-drop:hover, .file-drop.dragover { border-color: var(--accent); background: rgba(6,182,212,0.04); }
.file-drop .upload-icon { font-size: 3rem; display: block; margin-bottom: 12px; }
.file-drop p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }
.file-drop input[type="file"] { display: none; }

/* SCORE BAR */
.score-display { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-top: 20px; display: none; }
.score-display.visible { display: block; }
.score-meter { margin: 20px 0; }
.score-label { display: flex; justify-content: space-between; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; }
.score-track { background: var(--border); border-radius: 50px; height: 10px; overflow: hidden; }
.score-fill { height: 100%; border-radius: 50px; transition: width 1s ease; background: linear-gradient(90deg, #22C55E, #F59E0B, #EF4444); }
.score-result { text-align: center; }
.score-num { font-size: 3.5rem; font-weight: 800; font-family: 'Syne', sans-serif; }
.score-verdict { font-size: 1.1rem; font-weight: 600; margin-top: 4px; }

/* CALCULATOR */
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.calc-result { background: linear-gradient(135deg, var(--primary), #1E3A5F); border-radius: var(--radius); padding: 28px; color: #fff; text-align: center; display: flex; flex-direction: column; justify-content: center; }
.calc-result .result-num { font-size: 2.5rem; font-weight: 800; font-family: 'Syne', sans-serif; color: var(--accent); display: block; margin-bottom: 6px; }
.calc-result .result-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); }

/* WORD COUNTER */
.wc-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.wc-stats-col { display: flex; flex-direction: column; gap: 12px; }
.wc-stat { background: #F8FAFC; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; display: flex; justify-content: space-between; align-items: center; }
.wc-stat .wc-stat-label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.wc-stat .wc-stat-val { font-size: 1.4rem; font-weight: 800; color: var(--primary); font-family: 'Syne', sans-serif; }
.keyword-density { margin-top: 12px; }
.kw-item { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.85rem; }
.kw-item:last-child { border-bottom: none; }

/* META TAGS */
.meta-preview { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-top: 16px; }
.meta-preview .preview-url { font-size: 0.78rem; color: #1a0dab; margin-bottom: 4px; }
.meta-preview .preview-title { font-size: 1.1rem; color: #1a0dab; margin-bottom: 4px; font-weight: normal; }
.meta-preview .preview-desc { font-size: 0.83rem; color: #4d5156; }

/* CODE BLOCK */
.code-block { background: var(--primary); border-radius: var(--radius); padding: 20px; overflow-x: auto; margin-top: 16px; }
.code-block pre { color: #e2e8f0; font-family: 'Courier New', monospace; font-size: 0.85rem; line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
.code-block .kw { color: #06B6D4; }
.code-block .str { color: #22C55E; }
.code-block .val { color: #F59E0B; }

/* NOTICES */
.notice { background: rgba(6,182,212,0.08); border: 1px solid rgba(6,182,212,0.25); border-radius: var(--radius); padding: 14px 18px; font-size: 0.88rem; color: var(--secondary); margin-bottom: 16px; }
.notice.warn { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); }

/* ===== ABOUT / STATIC PAGES ===== */
.page-hero { background: var(--gradient); padding: 60px 0; }
.page-hero h1 { color: #fff; }
.page-hero p { color: rgba(255,255,255,0.7); }
.page-content { padding: 60px 0; }
.page-content h2 { margin: 36px 0 14px; }
.page-content h3 { margin: 24px 0 10px; font-size: 1.05rem; }
.page-content p { font-size: 0.95rem; color: var(--text-muted); }
.page-content ul, .page-content ol { padding-left: 22px; margin-bottom: 16px; }
.page-content ul li, .page-content ol li { margin-bottom: 8px; font-size: 0.92rem; color: var(--text-muted); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-form .form-group { margin-bottom: 18px; }
.contact-info-box { background: var(--primary); border-radius: var(--radius-lg); padding: 36px; color: #fff; }
.contact-info-box h3 { color: #fff; margin-bottom: 20px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; }
.contact-info-item .ci-icon { font-size: 1.4rem; }
.contact-info-item h4 { color: rgba(255,255,255,0.9); font-size: 0.9rem; margin-bottom: 4px; font-family: 'Inter', sans-serif; }
.contact-info-item p { color: rgba(255,255,255,0.5); font-size: 0.85rem; margin: 0; }

/* SITEMAP */
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 28px; }
.sitemap-group h3 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); margin-bottom: 14px; }
.sitemap-group ul li { margin-bottom: 10px; }
.sitemap-group ul li a { font-size: 0.9rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.sitemap-group ul li a:hover { color: var(--accent); }

/* 404 PAGE */
.error-page { padding: 100px 0; text-align: center; }
.error-num { font-size: 8rem; font-weight: 800; font-family: 'Syne', sans-serif; background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; margin-bottom: 20px; display: block; }
.error-page h1 { margin-bottom: 14px; }
.error-page p { max-width: 440px; margin: 0 auto 30px; }

/* ===== TOOLTIP ===== */
.tooltip-wrap { position: relative; display: inline-block; }
.tooltip-text { position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 0.75rem; padding: 6px 10px; border-radius: 6px; white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity 0.2s; z-index: 10; }
.tooltip-wrap:hover .tooltip-text { opacity: 1; }

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--primary); padding: 16px; flex-direction: column; align-items: stretch; border-top: 1px solid rgba(255,255,255,0.07); }
  .main-nav.open { display: flex; }
  .main-nav > a, .nav-dropdown-trigger { padding: 12px 16px; border-radius: 8px; }
  .nav-toggle { display: flex; }
  .dropdown-menu { position: static; opacity: 1; pointer-events: all; transform: none; grid-template-columns: 1fr; box-shadow: none; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06); margin-top: 6px; }
  .hero { padding: 60px 0 50px; }
  .hero-stats { gap: 24px; }
  .content-two-col { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .calc-grid { grid-template-columns: 1fr; }
  .wc-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
  .tool-section { padding: 40px 0; }
}
@media (max-width: 480px) {
  .tools-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; }
}