/* OSINT Max — Premium Design System */

:root {
  --navy: #0B1629;
  --navy-mid: #0F1E3D;
  --blue: #3B7BFF;
  --blue-hover: #5A91FF;
  --blue-subtle: #EEF3FF;
  --purple: #7C3AED;
  --purple-subtle: #F5F3FF;
  --text: #1A2340;
  --text-muted: #5A6785;
  --text-light: #8795AC;
  --text-xlight: #B4BDD0;
  --bg: #FFFFFF;
  --bg-subtle: #F7F9FC;
  --bg-subtle-2: #F0F4FA;
  --border: #E2E8F5;
  --border-strong: #CBD4E8;
  --success: #0EAF6E;
  --success-subtle: #ECFDF5;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --shadow-xs: 0 1px 3px rgba(14,31,91,.06),0 1px 2px rgba(14,31,91,.04);
  --shadow: 0 4px 20px rgba(14,31,91,.08),0 1px 4px rgba(14,31,91,.06);
  --shadow-md: 0 8px 30px rgba(14,31,91,.12),0 2px 8px rgba(14,31,91,.08);
  --shadow-lg: 0 16px 48px rgba(14,31,91,.16),0 4px 16px rgba(14,31,91,.1);
  --shadow-blue: 0 6px 28px rgba(59,123,255,.3);
  --transition: .2s cubic-bezier(.4,0,.2,1);
  --font-body: 'Space Grotesk', sans-serif;
  --font-display: 'DM Serif Display', serif;
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--text); background: var(--bg); line-height: 1.65; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.2; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 26px; border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 15px; font-weight: 600; cursor: pointer; transition: all var(--transition); border: none; text-decoration: none; white-space: nowrap; letter-spacing: -.01em; }
.btn-primary { background: var(--blue); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { background: var(--blue-hover); transform: translateY(-2px); box-shadow: 0 12px 40px rgba(59,123,255,.42); }
.btn-outline { background: transparent; color: var(--blue); border: 1.5px solid var(--blue); }
.btn-outline:hover { background: var(--blue-subtle); transform: translateY(-1px); }
.btn-ghost-white { background: rgba(255,255,255,.08); color: #fff; border: 1.5px solid rgba(255,255,255,.22); backdrop-filter: blur(8px); }
.btn-ghost-white:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.4); }
.btn-white { background: #fff; color: var(--navy); box-shadow: 0 4px 16px rgba(0,0,0,.12); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.18); }
.btn-lg { padding: 16px 32px; font-size: 16px; border-radius: var(--radius); }

/* ── Nav ── */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.95); backdrop-filter: blur(24px) saturate(200%); border-bottom: 1px solid rgba(226,232,245,.9); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo { font-family: var(--font-display); font-size: 22px; color: var(--navy); display: flex; align-items: center; gap: 4px; letter-spacing: -.02em; }
.nav-logo span { background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a { font-size: 15px; font-weight: 600; color: var(--text-muted); padding: 6px 12px; border-radius: var(--radius-xs); transition: all var(--transition); position: relative; letter-spacing: -.01em; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 12px; right: 12px; height: 2px; background: linear-gradient(90deg, var(--blue), var(--purple)); border-radius: 1px; opacity: 0; transform: scaleX(.3); transition: all var(--transition); }
.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after { opacity: .6; transform: scaleX(1); }
.nav-links a.active { color: var(--navy); }
.nav-links a.active::after { opacity: 1; transform: scaleX(1); }
.nav-cta { margin-left: 12px; }
.nav .nav-cta { background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%); box-shadow: 0 4px 20px rgba(59,123,255,.3); }
.nav .nav-cta::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #4ADE80; animation: pulse 2s infinite; flex-shrink: 0; }
.nav .nav-cta:hover { background: linear-gradient(135deg, #5A91FF 0%, #9361F5 100%); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(59,123,255,.45); }

/* ── Breadcrumbs ── */
.breadcrumbs { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); margin-bottom: 28px; flex-wrap: wrap; }
.breadcrumbs a { color: var(--blue); transition: color var(--transition); }
.breadcrumbs a:hover { color: var(--navy); }
.breadcrumbs-sep { color: var(--text-xlight); }

/* ── Article layout ── */
.article-wrap { padding: 52px 0 88px; }
.article-layout { display: grid; grid-template-columns: 1fr 296px; gap: 52px; align-items: start; }
.article-tag { font-size: 11px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--blue); }
.article-wrap .article-tag { display: inline-block; padding: 5px 14px; background: var(--blue-subtle); color: var(--blue); border-radius: 100px; margin-bottom: 18px; }
.article-h1 { font-size: clamp(24px,3.5vw,38px); color: var(--navy); margin-bottom: 22px; line-height: 1.2; letter-spacing: -.02em; }
.article-intro { font-size: 16px; color: var(--text-muted); line-height: 1.8; border-left: 3px solid var(--blue); background: var(--blue-subtle); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 18px 22px 18px 24px; margin-bottom: 44px; }

/* ── Article content ── */
.article-content { max-width: 720px; }
.article-content h2 { font-size: clamp(19px,2.5vw,26px); color: var(--navy); margin: 44px 0 16px; line-height: 1.25; letter-spacing: -.015em; }
.article-content h2:first-child { margin-top: 0; }
.article-content p { font-size: 16px; color: var(--text); line-height: 1.85; margin-bottom: 18px; }
.article-content ul { margin: 0 0 20px; padding-left: 0; list-style: none; }
.article-content ul li { font-size: 16px; color: var(--text); line-height: 1.75; padding: 5px 0 5px 24px; position: relative; }
.article-content ul li::before { content: ''; position: absolute; left: 0; top: 14px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.article-content a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--navy); }
.article-content code { font-family: 'Courier New',monospace; background: var(--bg-subtle); border: 1px solid var(--border); padding: 2px 7px; border-radius: var(--radius-xs); font-size: 13px; color: var(--navy); }

/* ── Steps (article) ── */
.ac-steps { display: flex; flex-direction: column; gap: 10px; margin: 22px 0; }
.ac-step { display: flex; gap: 14px; align-items: flex-start; padding: 16px 20px; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); font-size: 15px; line-height: 1.7; color: var(--text); transition: border-color var(--transition),box-shadow var(--transition); }
.ac-step:hover { border-color: var(--blue); box-shadow: var(--shadow-xs); }
.ac-step-num { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--blue); color: #fff; font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-top: 1px; }

/* ── Callouts ── */
.ac-callout { border-radius: var(--radius); padding: 18px 22px; margin: 22px 0; font-size: 15px; line-height: 1.75; }
.ac-callout-warn { background: #FFFBEB; border: 1px solid #FCD34D; color: #78350F; }
.ac-callout-info { background: var(--blue-subtle); border: 1px solid #C7D9FF; color: var(--navy); }
.ac-callout-green { background: var(--success-subtle); border: 1px solid #6EE7B7; color: #065F46; }

/* ── Data grids ── */
.ac-data-grid,.ac-sources { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 22px 0; }
.ac-data-item,.ac-source { padding: 16px 18px; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); transition: border-color var(--transition); }
.ac-data-item:hover,.ac-source:hover { border-color: var(--border-strong); }
.ac-data-label,.ac-source-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--blue); margin-bottom: 5px; }
.ac-data-val,.ac-source-val { font-size: 14px; color: var(--text); line-height: 1.55; }

/* ── Stats ── */
.ac-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin: 22px 0; }
.ac-stat { padding: 24px 16px; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); text-align: center; }
.ac-stat-num { font-size: 32px; font-weight: 800; color: var(--success); line-height: 1; margin-bottom: 7px; letter-spacing: -.02em; }
.ac-stat-label { font-size: 13px; color: var(--text-muted); line-height: 1.45; }

/* ── Table ── */
.ac-table-wrap { overflow-x: auto; margin: 22px 0; border-radius: var(--radius); border: 1px solid var(--border); -webkit-overflow-scrolling: touch; box-shadow: var(--shadow-xs); }
.ac-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 400px; }
.ac-table thead { background: var(--navy); color: #fff; }
.ac-table thead th { padding: 14px 16px; text-align: left; font-size: 13px; font-weight: 600; white-space: nowrap; }
.ac-table tbody tr:nth-child(odd) { background: var(--bg-subtle); }
.ac-table tbody td { padding: 12px 16px; color: var(--text); border-bottom: 1px solid var(--border); vertical-align: top; }
.ac-table tbody tr:last-child td { border-bottom: none; }

/* ── Use-case cards (article) ── */
.ac-cases { display: flex; flex-direction: column; gap: 10px; margin: 22px 0; }
.ac-case { display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); transition: all var(--transition); }
.ac-case:hover { border-color: var(--blue); background: var(--blue-subtle); }
.ac-case-icon { font-size: 22px; flex-shrink: 0; margin-top: 1px; }
.ac-case-title { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.ac-case-desc { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ── Article FAQ ── */
.ac-faq { display: flex; flex-direction: column; gap: 10px; margin: 22px 0; }
.ac-faq-item { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.ac-faq-q { padding: 16px 20px; font-size: 15px; font-weight: 600; color: var(--navy); background: var(--bg-subtle); line-height: 1.45; }
.ac-faq-a { padding: 14px 20px; font-size: 15px; color: var(--text-muted); line-height: 1.75; }

/* ── Read also ── */
.read-also-main { border-top: 1px solid var(--border); padding-top: 36px; margin-top: 12px; }
.read-also-main h3 { font-family: var(--font-body); font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 16px; }
.read-also-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.read-also-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; transition: all var(--transition); }
.read-also-card:hover { border-color: var(--blue); background: var(--blue-subtle); transform: translateY(-1px); }
.read-also-card-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--blue); margin-bottom: 7px; }
.read-also-card h4 { font-family: var(--font-body); font-size: 14px; font-weight: 600; color: var(--navy); line-height: 1.4; }

/* ── Sidebar ── */
.sidebar { position: sticky; top: 84px; }
.sidebar-widget { border-radius: var(--radius-lg); padding: 24px; margin-bottom: 20px; }
.sidebar-cta { background: linear-gradient(145deg, #0B1629 0%, #1A2F70 100%); color: #fff; }
.sidebar-cta h3 { font-family: var(--font-body); font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 10px; line-height: 1.4; }
.sidebar-cta p { font-size: 14px; color: rgba(255,255,255,.62); margin-bottom: 18px; line-height: 1.65; }
.sidebar-cta .btn-white { width: 100%; justify-content: center; font-size: 14px; padding: 12px 20px; }
.sidebar-price { font-size: 12px; color: rgba(255,255,255,.3); text-align: center; margin-top: 10px; }
.sidebar-related { background: var(--bg-subtle); border: 1px solid var(--border); }
.sidebar-related h3 { font-family: var(--font-body); font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 14px; }
.related-item { padding: 12px 0; border-bottom: 1px solid var(--border); }
.related-item:last-child { border-bottom: none; padding-bottom: 0; }
.related-item a { display: flex; gap: 10px; align-items: flex-start; }
.related-item a:hover .related-title { color: var(--blue); }
.related-num { font-size: 20px; font-weight: 800; color: var(--border); line-height: 1; flex-shrink: 0; font-family: var(--font-body); }
.related-inner { flex: 1; }
.related-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--blue); margin-bottom: 3px; }
.related-title { font-size: 13px; font-weight: 600; color: var(--navy); line-height: 1.4; transition: color var(--transition); }

/* ── Footer ── */
.footer { background: var(--navy); color: rgba(255,255,255,.5); padding: 52px 0 28px; }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.07); margin-bottom: 24px; }
.footer-logo { font-family: var(--font-display); font-size: 22px; color: #fff; letter-spacing: -.02em; }
.footer-logo span { color: #7BABFF; }
.footer-desc { font-size: 13px; color: rgba(255,255,255,.32); margin-top: 8px; max-width: 200px; line-height: 1.65; }
.footer-col h4 { font-family: var(--font-body); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: rgba(255,255,255,.28); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,.5); margin-bottom: 10px; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: rgba(255,255,255,.28); }

/* ── Hero ── */
.hero {
  background:
    radial-gradient(ellipse at 85% 0%, rgba(59,123,255,.22) 0%, transparent 55%),
    radial-gradient(ellipse at 15% 110%, rgba(124,58,237,.14) 0%, transparent 55%),
    var(--navy);
  color: #fff;
  padding: 92px 0 84px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px; border-radius: 100px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); font-size: 13px; font-weight: 500; margin-bottom: 24px; color: rgba(255,255,255,.82); backdrop-filter: blur(8px); }
.hero-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: #4ADE80; animation: pulse 2s infinite; flex-shrink: 0; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.4)} }
.hero h1 { font-size: clamp(30px,4.5vw,54px); color: #fff; margin-bottom: 20px; line-height: 1.1; letter-spacing: -.03em; }
.hero h1 em { font-style: italic; color: #7BABFF; }
.hero-desc { font-size: 16px; color: rgba(255,255,255,.62); margin-bottom: 36px; line-height: 1.75; max-width: 480px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 44px; margin-top: 52px; flex-wrap: wrap; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat-value { font-size: 28px; font-weight: 800; color: #fff; line-height: 1; letter-spacing: -.03em; }
.hero-stat-label { font-size: 12px; color: rgba(255,255,255,.38); margin-top: 5px; letter-spacing: .01em; }
.hero-visual { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-xl); padding: 24px; backdrop-filter: blur(20px); box-shadow: 0 24px 60px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.07); }
.hero-visual-header { display: flex; align-items: center; gap: 10px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.07); margin-bottom: 16px; }
.hero-visual-dots { display: flex; gap: 6px; }
.hero-visual-dots span { width: 10px; height: 10px; border-radius: 50%; }
.dot-r{background:#FF5F57}.dot-y{background:#FFBD2E}.dot-g{background:#28CA41}
.hero-visual-title { font-size: 12px; color: rgba(255,255,255,.3); margin-left: 4px; font-family: 'Courier New',monospace; }
.result-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.05); }
.result-row:last-child { border-bottom: none; }
.result-label { font-size: 11px; color: rgba(255,255,255,.32); width: 80px; flex-shrink: 0; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.result-value { font-size: 13px; color: rgba(255,255,255,.88); font-weight: 500; }
.badge-active { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 6px; background: rgba(74,222,128,.12); color: #4ADE80; font-size: 12px; font-weight: 600; border: 1px solid rgba(74,222,128,.2); }
.mono { font-family: 'Courier New',monospace; font-size: 12px; background: rgba(255,255,255,.07); padding: 2px 7px; border-radius: 4px; color: #93C5FF; letter-spacing: .03em; }

/* ── Sections shared ── */
section { padding: 88px 0; }
.section-label { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); margin-bottom: 12px; }
.section-title { font-size: clamp(26px,4vw,40px); color: var(--navy); margin-bottom: 14px; letter-spacing: -.02em; }
.section-desc { font-size: 16px; color: var(--text-muted); max-width: 560px; line-height: 1.7; }
.section-head { margin-bottom: 52px; }
.section-head-center { text-align: center; }
.section-head-center .section-desc { margin: 0 auto; }

/* ── How it works ── */
.how { background: var(--bg-subtle); }
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.step { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 38px 30px; transition: all var(--transition); position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; }
.step:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: rgba(59,123,255,.25); }
.step-number { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg,var(--blue) 0%,#5A91FF 100%); color: #fff; font-weight: 800; font-size: 18px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; box-shadow: 0 4px 16px rgba(59,123,255,.3); }
.step-emoji { display: none; }
.step h3 { font-family: var(--font-body); font-size: 18px; font-weight: 700; color: var(--navy); margin-bottom: 12px; letter-spacing: -.01em; }
.step p { font-size: 14px; color: var(--text-muted); line-height: 1.72; }
.step-arrow { display: none; }

/* ── Returns / Data section ── */
.returns-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 18px; }
.return-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px 22px; transition: all var(--transition); background: var(--bg); position: relative; overflow: hidden; text-align: center; display: flex; flex-direction: column; align-items: center; }
.return-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg,var(--blue) 0%,#5A91FF 100%); opacity: 0; transition: opacity var(--transition); }
.return-card:hover { border-color: rgba(59,123,255,.28); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.return-card:hover::before { opacity: 1; }
.return-icon { width: 46px; height: 46px; background: linear-gradient(135deg,var(--blue-subtle) 0%,#DDE9FF 100%); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }
.return-card h3 { font-family: var(--font-body); font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 8px; letter-spacing: -.01em; }
.return-card p { font-size: 13px; color: var(--text-muted); line-height: 1.65; }
.return-card code { font-size: 11px; background: var(--bg-subtle); border: 1px solid var(--border); padding: 2px 6px; border-radius: 4px; color: var(--blue); font-family: 'Courier New',monospace; }

/* ── Pricing ── */
.pricing { background: var(--bg-subtle); }
.pricing-main { display: grid; grid-template-columns: 280px 1fr; gap: 22px; margin-bottom: 20px; }
.pricing-base {
  background: radial-gradient(ellipse at 80% 0%, rgba(59,123,255,.18) 0%, transparent 60%), linear-gradient(160deg,var(--navy) 0%,#182F72 100%);
  border-radius: var(--radius-lg); padding: 36px; color: #fff;
}
.pricing-base-label { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.38); margin-bottom: 16px; }
.pricing-price { font-size: 56px; font-weight: 800; color: #fff; line-height: 1; margin-bottom: 4px; letter-spacing: -.04em; }
.pricing-price-sub { font-size: 14px; color: rgba(255,255,255,.38); margin-bottom: 28px; }
.pricing-info { font-size: 14px; color: rgba(255,255,255,.58); line-height: 1.88; }
.pricing-info strong { color: #fff; }
.pricing-discounts { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; }
.pricing-discounts h3 { font-family: var(--font-body); font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 22px; letter-spacing: -.01em; }
.discount-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; }
.discount-item { text-align: center; padding: 18px 8px; border-radius: var(--radius-sm); border: 1px solid var(--border); transition: all var(--transition); background: var(--bg-subtle); }
.discount-item:hover { border-color: var(--blue); background: var(--blue-subtle); transform: translateY(-2px); box-shadow: var(--shadow-xs); }
.discount-from { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; font-weight: 500; }
.discount-pct { font-size: 26px; font-weight: 800; color: var(--success); line-height: 1; letter-spacing: -.03em; }
.discount-val { font-size: 11px; color: var(--text-light); margin-top: 6px; }
.pricing-note { text-align: center; font-size: 14px; color: var(--text-muted); padding: 18px 24px; background: var(--bg); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.pricing-note strong { color: var(--navy); }
.pricing-note a { color: var(--blue); font-weight: 600; }

/* ── Pricing calculator ── */
.discount-item.discount-active { border-color: var(--blue) !important; background: var(--blue-subtle) !important; box-shadow: 0 0 0 2px rgba(59,123,255,.15); transform: translateY(-2px); }
.discount-item.discount-active .discount-pct { color: var(--blue); }

.calc { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--border); }
.calc-label { display: block; font-size: 13px; font-weight: 700; color: var(--navy); margin-bottom: 10px; letter-spacing: -.01em; }
.calc-field { position: relative; }
.calc-input { width: 100%; padding: 14px 80px 14px 18px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 16px; font-weight: 600; color: var(--navy); background: var(--bg-subtle); outline: none; transition: border-color var(--transition),box-shadow var(--transition); -moz-appearance: textfield; }
.calc-input::-webkit-outer-spin-button,.calc-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.calc-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,123,255,.12); background: var(--bg); }
.calc-unit { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-size: 13px; font-weight: 500; color: var(--text-light); pointer-events: none; }

.calc-results { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-top: 14px; }
.calc-res-item { background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 12px; text-align: center; transition: all var(--transition); }
.calc-res-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text-muted); margin-bottom: 8px; }
.calc-res-val { font-size: 18px; font-weight: 800; color: var(--navy); letter-spacing: -.02em; }
.calc-res-total { background: var(--navy); border-color: var(--navy); }
.calc-res-total .calc-res-label { color: rgba(255,255,255,.45); }
.calc-res-total .calc-res-val { color: #fff; }
.calc-res-discount { border-color: var(--success); background: var(--success-subtle); }
.calc-res-discount .calc-res-val { color: var(--success); }

.calc-note { font-size: 13px; color: var(--text-muted); margin-top: 10px; min-height: 20px; }
.calc-note-warn { color: #B45309; }

/* ── Comparison ── */
.comparison-table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow); -webkit-overflow-scrolling: touch; }
.comparison-table { width: 100%; border-collapse: collapse; min-width: 480px; }
.comparison-table th { padding: 18px 22px; text-align: left; font-size: 13px; font-weight: 700; color: var(--text-muted); background: var(--bg-subtle); border-bottom: 1px solid var(--border); letter-spacing: .01em; }
.comparison-table th.hl { background: var(--navy); color: #fff; }
.comparison-table td { padding: 14px 22px; font-size: 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table td.hl { background: var(--blue-subtle); font-weight: 600; color: var(--navy); }
.comparison-table tr:hover td { background: #F8FAFD; }
.comparison-table tr:hover td.hl { background: #E4EEFF; }
.check { color: var(--success); font-size: 16px; font-weight: 700; }
.cross { color: #EF4444; font-size: 16px; }

/* ── Use cases ── */
.usecases { background: var(--bg-subtle); }
.cases-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.case-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 32px; transition: all var(--transition); position: relative; overflow: hidden; }
.case-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg,var(--blue) 0%,var(--purple) 100%); opacity: 0; transition: opacity var(--transition); }
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(59,123,255,.2); }
.case-card:hover::after { opacity: 1; }
.case-emoji { font-size: 36px; margin-bottom: 16px; }
.case-card h3 { font-family: var(--font-body); font-size: 19px; font-weight: 700; color: var(--navy); margin-bottom: 10px; letter-spacing: -.01em; }
.case-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.case-tag { display: inline-flex; align-items: center; margin-top: 16px; padding: 5px 14px; border-radius: 100px; background: var(--blue-subtle); color: var(--blue); font-size: 12px; font-weight: 600; }

/* ── FAQ ── */
.faq-list { max-width: 740px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; transition: all var(--transition); }
.faq-item:hover { border-color: var(--border-strong); }
.faq-item.open { border-color: var(--blue); box-shadow: var(--shadow-xs); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 24px; background: none; border: none; cursor: pointer; text-align: left; font-family: var(--font-body); font-size: 15px; font-weight: 600; color: var(--navy); letter-spacing: -.01em; }
.faq-question:hover { background: var(--bg-subtle); }
.faq-icon { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--blue-subtle); color: var(--blue); display: flex; align-items: center; justify-content: center; font-size: 18px; transition: transform var(--transition),background var(--transition),color var(--transition); }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--blue); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer-inner { padding: 0 24px 22px; font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ── Blog cards (homepage) ── */
.blog-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.blog-card { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); display: flex; flex-direction: column; background: var(--bg); }
.blog-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(59,123,255,.2); }
.blog-thumb { height: 160px; display: flex; align-items: center; justify-content: center; font-size: 52px; position: relative; overflow: hidden; }
.blog-thumb::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle,rgba(255,255,255,.06) 1px,transparent 1px); background-size: 20px 20px; }
.blog-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.blog-card-tag { font-size: 11px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--blue); margin-bottom: 9px; }
.blog-card h3 { font-family: var(--font-body); font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 9px; line-height: 1.45; letter-spacing: -.01em; }
.blog-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; flex: 1; }
.blog-card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 13px; font-weight: 600; color: var(--blue); transition: gap var(--transition); }
.blog-card-link:hover { gap: 10px; }

/* ── Final CTA ── */
.final-cta {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(59,123,255,.22) 0%, transparent 65%),
    var(--navy);
  padding: 96px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle,rgba(255,255,255,.05) 1px,transparent 1px); background-size: 30px 30px; pointer-events: none; }
.final-cta-inner { position: relative; z-index: 1; }
.final-cta h2 { font-size: clamp(28px,4.5vw,46px); color: #fff; margin-bottom: 16px; letter-spacing: -.025em; }
.final-cta p { font-size: 17px; color: rgba(255,255,255,.58); margin-bottom: 36px; max-width: 480px; margin-left: auto; margin-right: auto; line-height: 1.7; }

/* ── Blog index page ── */
.page-header {
  background:
    radial-gradient(ellipse at 80% 0%, rgba(59,123,255,.2) 0%, transparent 55%),
    var(--navy);
  color: #fff;
  padding: 64px 0 56px;
  position: relative; overflow: hidden;
}
.page-header::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle,rgba(255,255,255,.06) 1px,transparent 1px); background-size: 28px 28px; pointer-events: none; }
.page-header .breadcrumbs { position: relative; z-index: 1; color: rgba(255,255,255,.42); }
.page-header .breadcrumbs a { color: rgba(255,255,255,.55); }
.page-header .breadcrumbs a:hover { color: #fff; }
.page-header .breadcrumbs-sep { color: rgba(255,255,255,.22); }
.page-header .section-label { color: rgba(255,255,255,.4); position: relative; z-index: 1; }
.page-header h1 { font-size: clamp(28px,4vw,44px); color: #fff; margin-bottom: 14px; letter-spacing: -.025em; position: relative; z-index: 1; }
.page-header p { font-size: 16px; color: rgba(255,255,255,.58); max-width: 520px; line-height: 1.7; position: relative; z-index: 1; }
.blog-main { padding: 64px 0; }
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; margin-bottom: 60px; }
.article-card { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); display: flex; flex-direction: column; background: var(--bg); }
.article-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(59,123,255,.2); }
.article-thumb { height: 180px; display: flex; align-items: center; justify-content: center; font-size: 56px; position: relative; overflow: hidden; }
.article-thumb::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle,rgba(255,255,255,.07) 1px,transparent 1px); background-size: 20px 20px; }
.article-thumb-1 { background: linear-gradient(135deg,#0B1629 0%,#1B3380 100%); }
.article-thumb-2 { background: linear-gradient(135deg,#0B2920 0%,#0EAF6E 100%); }
.article-thumb-3 { background: linear-gradient(135deg,#200B3B 0%,#7C3AED 100%); }
.article-body { padding: 26px; flex: 1; display: flex; flex-direction: column; }
.article-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.article-date { font-size: 13px; color: var(--text-light); }
.article-card h2 { font-family: var(--font-body); font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 10px; line-height: 1.45; letter-spacing: -.01em; }
.article-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1; }
.article-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: 14px; font-weight: 600; color: var(--blue); transition: gap var(--transition); }
.article-link:hover { gap: 10px; }
.cta-block {
  background:
    radial-gradient(ellipse at 80% 0%, rgba(59,123,255,.2) 0%, transparent 60%),
    linear-gradient(135deg,var(--navy) 0%,#1B3380 100%);
  border-radius: var(--radius-xl); padding: 52px 44px; text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.cta-block::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle,rgba(255,255,255,.05) 1px,transparent 1px); background-size: 24px 24px; pointer-events: none; }
.cta-block h2 { font-size: clamp(22px,3vw,30px); color: #fff; margin-bottom: 12px; position: relative; z-index: 1; letter-spacing: -.02em; }
.cta-block p { font-size: 15px; color: rgba(255,255,255,.62); margin-bottom: 28px; position: relative; z-index: 1; }
.cta-block .btn { position: relative; z-index: 1; }
.back-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--blue); margin-top: 8px; transition: gap var(--transition); }
.back-link:hover { color: var(--navy); gap: 10px; }

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */

/* Tablet — fix 5-item returns grid (3+2 centered) */
@media (max-width: 960px) {
  .returns-grid { grid-template-columns: repeat(6,1fr); }
  .return-card { grid-column: span 2; }
  .return-card:nth-child(4) { grid-column: 2 / 4; }
  .return-card:nth-child(5) { grid-column: 4 / 6; }
}

@media (max-width: 900px) {
  /* Article */
  .article-layout { grid-template-columns: 1fr; gap: 36px; }
  .sidebar { position: static; }
  .read-also-grid { grid-template-columns: 1fr; }
  .ac-stats { grid-template-columns: 1fr 1fr; }

  /* Homepage */
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .steps { grid-template-columns: 1fr; }
  .pricing-main { grid-template-columns: 1fr; }
  .pricing-base { padding: 28px; }
  .discount-grid { grid-template-columns: repeat(3,1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .blog-cards { grid-template-columns: 1fr 1fr; }
  .calc-results { grid-template-columns: 1fr 1fr; }
  .calc-res-total { grid-column: 1 / -1; }

  /* Blog index */
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; gap: 28px; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  section { padding: 60px 0; }

  /* Nav */
  .nav-inner { height: 58px; }
  .nav-links { display: none; }
  .nav-logo { font-size: 20px; }
  .nav-cta { padding: 9px 16px; font-size: 13px; }

  /* Footer */
  .footer { padding: 40px 0 24px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }

  /* Hero */
  .hero { padding: 56px 0 52px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { gap: 24px; }
  .hero-stat-value { font-size: 24px; }

  /* Article */
  .article-wrap { padding: 32px 0 60px; }
  .article-intro { font-size: 15px; padding: 14px 18px 14px 20px; }
  .article-content h2 { margin: 36px 0 14px; }

  /* Article components */
  .ac-data-grid,.ac-sources { grid-template-columns: 1fr; }
  .ac-stats { grid-template-columns: 1fr; }
  .ac-step { padding: 14px 16px; font-size: 14px; }
  .ac-step-num { width: 28px; height: 28px; font-size: 12px; }
  .ac-faq-q { padding: 14px 18px; font-size: 14px; }
  .ac-faq-a { padding: 12px 18px; font-size: 14px; }
  .ac-callout { padding: 14px 16px; font-size: 14px; }
  .ac-case { padding: 14px 16px; }

  /* Sidebar */
  .sidebar-widget { padding: 20px; }

  /* Homepage */
  .discount-grid { grid-template-columns: repeat(3,1fr); }
  .returns-grid { grid-template-columns: 1fr 1fr !important; }
  .return-card { grid-column: auto !important; }
  .blog-cards { grid-template-columns: 1fr; }
  .pricing-discounts { padding: 22px 18px; }
  .final-cta { padding: 68px 0; }
  .cta-block { padding: 36px 22px; }
  .case-card { padding: 28px 22px; }
  .faq-question { padding: 18px 18px; font-size: 14px; }
  .faq-answer-inner { padding: 0 18px 18px; }

  /* Blog index */
  .blog-grid { grid-template-columns: 1fr; }
  .page-header { padding: 44px 0 40px; }
  .blog-main { padding: 44px 0; }
}

@media (max-width: 400px) {
  .article-h1 { font-size: 21px; }
  .ac-stat-num { font-size: 26px; }
  .returns-grid { grid-template-columns: 1fr !important; }
  .return-card { grid-column: auto !important; }
  .discount-grid { grid-template-columns: repeat(2,1fr); }
}