/* Site header: shared by every page. */
.site-header { position: sticky; top: 0; z-index: 50; background: rgb(255 255 255 / 96%); backdrop-filter: blur(10px); border-bottom: 1px solid #e1e6ed; font-family: "Poppins", "Helvetica Neue", Arial, sans-serif; }
.hn { max-width: 1200px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 24px; min-height: 68px; }
.hn-logo img { display: block; height: 32px; width: auto; }
.hn-menu { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.hn-link { display: inline-flex; align-items: center; gap: 6px; padding: 10px 12px; border-radius: 8px; font: 500 15px/1 "Poppins", sans-serif; color: #0b1a2b; text-decoration: none; background: none; border: 0; cursor: pointer; white-space: nowrap; }
.hn-link:hover, .hn-btn[aria-expanded="true"] { background: #f2f4f7; }
.hn-link[aria-current="page"] { color: #D90700; }
.hn-btn svg { width: 10px; height: 6px; transition: transform .15s; }
.hn-btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.hn-dd { position: relative; }
.hn-panel { position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%); min-width: 340px; padding: 8px; background: #fff; border: 1px solid #e1e6ed; border-radius: 14px; box-shadow: 0 18px 50px rgb(11 26 43 / 14%); display: grid; gap: 2px; }
.hn-panel a { display: grid; gap: 2px; padding: 10px 12px; border-radius: 9px; text-decoration: none; color: #0b1a2b; }
.hn-panel a:hover, .hn-panel a:focus-visible { background: #f2f4f7; }
.hn-panel b { font-weight: 600; font-size: 14.5px; }
.hn-panel span { font-size: 13px; color: #6a778b; }
.hn-actions { display: flex; align-items: center; gap: 10px; }
.hn-login { font: 500 15px/1 "Poppins", sans-serif; color: #0b1a2b; text-decoration: none; padding: 10px 8px; white-space: nowrap; }
.hn-sign, .hn-demo { font: 600 14.5px/1 "Poppins", sans-serif; padding: 12px 16px; border-radius: 9px; text-decoration: none; white-space: nowrap; text-align: center; }
.hn-sign { color: #0b1a2b; border: 1px solid #d5dce5; background: #fff; }
.hn-sign:hover { border-color: #6a778b; }
.hn-demo { color: #fff; background: #D90700; border: 1px solid #D90700; }
.hn-demo:hover { background: #B30600; }
.hn-burger { display: none; position: relative; width: 44px; height: 44px; border: 1px solid #d5dce5; border-radius: 10px; background: #fff; cursor: pointer; padding: 0; }
.hn-burger span { position: absolute; left: 12px; width: 18px; height: 2px; background: #0b1a2b; border-radius: 2px; transition: transform .2s, opacity .2s, top .2s; }
.hn-burger span:nth-child(1) { top: 14px; } .hn-burger span:nth-child(2) { top: 20px; } .hn-burger span:nth-child(3) { top: 26px; }
.hn-burger[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.hn-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hn-burger[aria-expanded="true"] span:nth-child(3) { top: 20px; transform: rotate(-45deg); }
.mn { border-top: 1px solid #e1e6ed; background: #fff; max-height: calc(100dvh - 68px); overflow-y: auto; padding: 8px 20px 24px; }
.mn-group { padding-block: 12px; border-bottom: 1px solid #eef1f5; display: grid; }
.mn-label { font: 500 11.5px/1 "JetBrains Mono", monospace; letter-spacing: .1em; text-transform: uppercase; color: #6a778b; padding-block: 6px 8px; }
.mn-group a, .mn-top { display: flex; align-items: center; min-height: 48px; font: 500 17px/1.2 "Poppins", sans-serif; color: #0b1a2b; text-decoration: none; }
.mn-top { border-bottom: 1px solid #eef1f5; }
.mn-actions { display: grid; gap: 10px; padding-top: 18px; }
.mn-actions .hn-login { text-align: center; padding: 14px; }
.mn-actions .hn-sign, .mn-actions .hn-demo { padding: 15px; font-size: 16px; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid #63b3ed; outline-offset: 2px; }
@media (max-width: 1100px) { .hn-menu, .hn-actions .hn-sign { display: none; } .hn-actions { margin-left: auto; } .hn-burger { display: block; } }
@media (max-width: 560px) { .hn-actions { display: none; } .hn-burger { margin-left: auto; } .hn { padding: 10px 16px; min-height: 60px; } .hn-logo img { height: 28px; } }
@media (min-width: 1101px) { .mn { display: none !important; } }
@media (prefers-reduced-motion: reduce) { .hn-burger span, .hn-btn svg { transition: none; } }