* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Inter", system-ui, sans-serif; }
body { background: #f4f6fc; color: #1e293b; }
a { color: #1e40af; text-decoration: none; }
a:hover { text-decoration: underline; }
.page-shell { padding: 22px 18px 40px; }
.container, .content-container { max-width: 1280px; margin: 0 auto; }
.top-nav { max-width: 1280px; margin: 0 auto 18px; background: rgba(255,255,255,0.96); border-radius: 30px; box-shadow: 0 12px 28px rgba(0,0,0,0.05); padding: 16px 20px; border: 1px solid rgba(226,232,240,0.8); }
.nav-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand-link { font-weight: 800; color: #0f172a; }
.nav-links { display: flex; gap: 10px; flex-wrap: wrap; }
.nav-links a { color: #334155; padding: 8px 14px; border-radius: 999px; font-weight: 600; }
.nav-links a.active, .nav-links a:hover { background: #eef2ff; color: #1e40af; text-decoration: none; }
.card, .section-card { background: rgba(255,255,255,0.98); border-radius: 36px; box-shadow: 0 20px 35px -12px rgba(0,0,0,0.08); padding: 24px 28px; border: 1px solid rgba(226,232,240,0.6); margin-bottom: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.guide-grid, .faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.badge { background: #eef2ff; display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 40px; font-size: 0.8rem; font-weight: 700; color: #1e40af; margin-bottom: 18px; }
h1 { font-size: 2rem; margin-bottom: 14px; color: #0f172a; }
h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 14px; color: #0f172a; }
h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; color: #0f172a; }
p, li { color: #334155; line-height: 1.62; }
ul { padding-left: 20px; }
li { margin-bottom: 8px; }
.intro-text { margin-bottom: 18px; color: #475569; }
.input-group { margin-bottom: 18px; }
label { font-weight: 600; font-size: 0.86rem; display: block; margin-bottom: 6px; color: #334155; }
input, select { width: 100%; padding: 12px 16px; border-radius: 28px; border: 1px solid #e2e8f0; background: #fff; font-size: 0.95rem; transition: 0.2s; color: #0f172a; }
input:focus, select:focus { outline: none; border-color: #3b82f6; box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
button { background: #0f172a; color: white; border: none; padding: 10px 18px; border-radius: 40px; font-weight: 700; cursor: pointer; transition: 0.2s; font-size: 0.9rem; }
button:hover { background: #1e293b; transform: scale(0.98); }
.progress-bar { background: #e2e8f0; border-radius: 30px; height: 12px; overflow: hidden; margin: 16px 0; }
.progress-fill { width: 0%; height: 100%; background: linear-gradient(90deg, #3b82f6, #06b6d4); border-radius: 30px; transition: width 0.5s; }
.insight-card { background: #f8fafc; border-radius: 24px; padding: 18px; margin-top: 16px; border-left: 4px solid #3b82f6; }
.insight-card div { margin-bottom: 10px; }
.insight-card div:last-child { margin-bottom: 0; }
.stat-number { font-size: 2rem; font-weight: 800; color: #0f172a; }
.special-calc { background: #fff; border-radius: 28px; padding: 18px; border: 1px solid #eef2ff; box-shadow: 0 4px 12px rgba(0,0,0,0.02); }
.warning-txt { background: #fef9c3; border-radius: 20px; padding: 10px 14px; font-size: 0.84rem; color: #713f12; }
.qa-select-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.custom-question { flex: 1; }
.answer-box { background: #eef2ff; border-radius: 24px; padding: 18px; margin-top: 16px; font-size: 0.95rem; line-height: 1.5; color: #1e293b; }
.export-buttons-wrapper { display: flex; justify-content: center; gap: 24px; margin: 16px 0 28px 0; flex-wrap: wrap; }
.btn-export { background: #2c3e66; padding: 10px 28px; font-size: 1rem; }
.report-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.mini-card { background: #f8fafc; border-radius: 24px; padding: 18px; border: 1px solid #eef2ff; }
.guide-card { background: #f8fafc; border-radius: 24px; padding: 18px; border: 1px solid #e2e8f0; }
.guide-card h3 { margin-bottom: 8px; }
.guide-card p { font-size: 0.94rem; }
.read-link { display: inline-block; margin-top: 10px; font-weight: 700; }
.hero-back { display: inline-block; margin-bottom: 18px; color: #1e40af; font-weight: 700; }
canvas { max-width: 100%; height: auto; background: #fff; border-radius: 20px; border: 1px solid #e2e8f0; }
footer { margin-top: 42px; text-align: center; font-size: 0.85rem; color: #475569; border-top: 1px solid #e2e8f0; padding: 28px 16px 16px; }
.footer-links { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.footer-links a { padding: 6px 12px; border-radius: 999px; background: #eef2ff; }
footer a { color: #1e40af; font-weight: 500; }
@media (max-width: 920px) {
    .grid-2, .grid-3, .grid-4, .guide-grid, .faq-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .page-shell { padding: 14px; }
    .card, .section-card { padding: 20px; }
    h1 { font-size: 1.7rem; }
}