:root {
    --brand: #2f6bff;
    --brand-strong: #1f57e6;
    --sidebar-a: #2f74ff;
    --sidebar-b: #1f5cf0;
    --navy: #16255a;
    --ink: #26324d;
    --muted: #6a7690;
    --page: #eef3fc;
    --card: #ffffff;
    --line: #e5eaf3;
    --field: #eef3fd;
    --field-line: #e0e8f7;
    --thead: #e9f1ff;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow: 0 10px 30px rgba(23, 43, 97, .06);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--page);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.pnl-container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.pnl-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border: 1px solid transparent; border-radius: var(--radius-sm);
    padding: 11px 18px; font-size: 15px; font-weight: 600; line-height: 1;
    cursor: pointer; background: #eef2f9; color: var(--ink);
    transition: background .18s, box-shadow .18s, transform .18s;
}
.pnl-btn:hover { text-decoration: none; }
.pnl-btn--primary { background: var(--brand); color: #fff; }
.pnl-btn--primary:hover { background: var(--brand-strong); }
.pnl-btn--ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.pnl-btn--ghost:hover { background: #f5f8ff; }
.pnl-btn--danger { background: #fff; border-color: #f2c4c0; color: #d64535; }
.pnl-btn--danger:hover { background: #fdf2f1; }
.pnl-btn--block { width: 100%; }
.pnl-btn--sm { padding: 7px 12px; font-size: 13px; border-radius: 8px; }

.pnl-field { margin-bottom: 18px; }
.pnl-label { display: block; font-weight: 700; color: var(--navy); font-size: 14px; margin-bottom: 8px; }
.pnl-input, .pnl-select {
    width: 100%; background: var(--field); border: 1px solid var(--field-line);
    border-radius: var(--radius-sm); padding: 13px 15px; font-size: 15px; color: var(--ink);
    transition: border-color .18s, box-shadow .18s, background .18s;
}
.pnl-input:focus, .pnl-select:focus {
    outline: none; background: #fff; border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(47, 107, 255, .12);
}
.pnl-input::placeholder { color: #97a1b8; }

.pnl-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.pnl-card__body { padding: 26px; }

.pnl-page-title { font-size: 22px; font-weight: 800; color: var(--navy); margin: 0 0 20px; }

.pnl-alert { border-radius: var(--radius-sm); padding: 12px 15px; margin-bottom: 18px; font-size: 14px; }
.pnl-alert--ok { background: #e7f7ee; color: #1c7a44; }
.pnl-alert--err { background: #fdecea; color: #c23a2b; }
.pnl-alert--warn { background: #fff5e6; color: #9a6a12; }
.pnl-alert--info { background: #e9f1ff; color: #2554b0; }
.pnl-alert div + div { margin-top: 4px; }

.pnl-badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; background: #eef2f9; color: var(--muted); }
.pnl-badge--ok { background: #e7f7ee; color: #1c7a44; }
.pnl-badge--warn { background: #fff5e6; color: #9a6a12; }
.pnl-muted { color: var(--muted); }

.pnl-table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.pnl-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.pnl-table thead th { background: var(--thead); color: var(--navy); font-weight: 700; text-align: left; padding: 14px 16px; white-space: nowrap; }
.pnl-table tbody td { padding: 14px 16px; border-top: 1px solid var(--line); vertical-align: middle; }
.pnl-table tbody tr:first-child td { border-top: none; }
.pnl-nowrap { white-space: nowrap; }
.pnl-truncate { max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.pnl-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.pnl-tab { padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 600; color: var(--brand); }
.pnl-tab.is-active { background: var(--brand); color: #fff; }

.pnl-search { display: flex; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 10px; margin-bottom: 18px; }
.pnl-search__input { flex: 1; border: none; background: var(--field); border-radius: var(--radius-sm); padding: 12px 15px; font-size: 15px; }
.pnl-search__input:focus { outline: none; }
.pnl-search__btn { border: none; background: var(--brand); color: #fff; border-radius: var(--radius-sm); width: 52px; margin-left: 10px; cursor: pointer; display: flex; align-items: center; justify-content: center; }

.pnl-topnav { background: #fff; border-bottom: 1px solid var(--line); }
.pnl-topnav__inner { display: flex; align-items: center; height: 68px; }
.pnl-topnav__brand { font-size: 24px; font-weight: 800; letter-spacing: .5px; color: var(--brand); }
.pnl-topnav__links { margin-left: auto; display: flex; align-items: center; gap: 30px; }
.pnl-topnav__links a { color: var(--navy); font-weight: 600; font-size: 15px; }
.pnl-topnav__links a.is-active { color: var(--brand); }

.pnl-guest-main { padding: 46px 0; }
.pnl-auth-wrap { max-width: 460px; margin: 0 auto; }

.pnl-hero { position: relative; overflow: hidden; }
.pnl-hero__top { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; padding: 40px 0 90px; }
.pnl-hero__title { font-size: clamp(30px, 4vw, 46px); font-weight: 800; color: var(--navy); line-height: 1.1; margin: 0 0 16px; }
.pnl-hero__sub { font-size: 17px; color: var(--muted); margin: 0 0 26px; }
.pnl-why { background: linear-gradient(180deg, var(--sidebar-a), var(--sidebar-b)); color: #fff; padding: 20px 0 64px; }
.pnl-why__title { text-align: center; font-size: clamp(24px, 3vw, 34px); font-weight: 800; margin: 0 0 8px; }
.pnl-why__sub { text-align: center; opacity: .9; margin: 0 0 34px; }
.pnl-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.pnl-feature { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.pnl-feature__ic { width: 64px; height: 64px; border-radius: 12px; background: #eef3fd; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--brand); }
.pnl-feature__ic svg { width: 32px; height: 32px; }
.pnl-feature h3 { margin: 0 0 8px; font-size: 16px; color: var(--navy); }
.pnl-feature p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }

.pnl-app { min-height: 100vh; }
.pnl-sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; width: 250px; z-index: 30;
    background: linear-gradient(180deg, var(--sidebar-a), var(--sidebar-b)); color: #fff;
    display: flex; flex-direction: column; padding: 22px 16px; overflow-y: auto;
}
.pnl-sidebar__brand { font-size: 22px; font-weight: 800; letter-spacing: .5px; color: #fff; padding: 4px 10px 22px; }
.pnl-sidebar__brand a { color: #fff; }
.pnl-nav { display: flex; flex-direction: column; gap: 4px; }
.pnl-nav__link { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius-sm); color: rgba(255, 255, 255, .9); font-weight: 600; font-size: 15px; }
.pnl-nav__link svg { width: 20px; height: 20px; flex: none; }
.pnl-nav__link:hover { background: rgba(255, 255, 255, .12); text-decoration: none; color: #fff; }
.pnl-nav__link.is-active { background: #fff; color: var(--brand); }

.pnl-main { margin-left: 250px; min-height: 100vh; display: flex; flex-direction: column; }
.pnl-topbar { display: flex; align-items: center; gap: 14px; background: #fff; border-bottom: 1px solid var(--line); height: 68px; padding: 0 26px; }
.pnl-balance { display: inline-flex; align-items: center; gap: 8px; background: var(--brand); color: #fff; font-weight: 700; padding: 9px 16px; border-radius: var(--radius-sm); }
.pnl-topbar__spacer { flex: 1; }
.pnl-topbar__link { color: var(--navy); font-weight: 600; }
.pnl-content { padding: 28px 26px; flex: 1; }

.pnl-burger { display: none; background: none; border: none; cursor: pointer; color: var(--navy); padding: 6px; }
.pnl-burger svg { width: 26px; height: 26px; }
.pnl-backdrop { display: none; }

@media (max-width: 991px) {
    .pnl-sidebar { transform: translateX(-100%); transition: transform .22s ease; }
    .pnl-main { margin-left: 0; }
    .pnl-burger { display: inline-flex; }
    #pnl-sb:checked ~ .pnl-app .pnl-sidebar { transform: translateX(0); }
    #pnl-sb:checked ~ .pnl-app .pnl-backdrop { display: block; position: fixed; inset: 0; background: rgba(16, 26, 56, .4); z-index: 20; }
    .pnl-hero__top { grid-template-columns: 1fr; padding-bottom: 60px; }
    .pnl-features { grid-template-columns: repeat(2, 1fr); }
    .pnl-topnav__links { gap: 18px; }
}

@media (max-width: 640px) {
    .pnl-features { grid-template-columns: 1fr; }
    .pnl-topnav__links a:not(.pnl-btn) { display: none; }
    .pnl-content { padding: 20px 16px; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
}

.pnl-center { text-align: center; }
.pnl-mt { margin-top: 16px; }
.pnl-section-title { font-size: 15px; font-weight: 700; color: var(--navy); margin: 26px 0 10px; }
.pnl-section-title:first-child { margin-top: 0; }
.pnl-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.pnl-flex-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; }
.pnl-balance-card { max-width: 340px; }
.pnl-balance-card .pnl-amount { font-size: 30px; font-weight: 800; color: var(--navy); margin: 6px 0 18px; }
.pnl-login-card { margin-top: 6px; }
.pnl-hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }

.pnl-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; text-align: center; }
.pnl-stat__label { color: var(--muted); font-size: 13px; }
.pnl-stat__value { font-weight: 800; color: var(--navy); font-size: 18px; margin-top: 2px; }
.pnl-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pnl-list { display: flex; flex-direction: column; gap: 8px; }
.pnl-list__item { display: flex; justify-content: space-between; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; box-shadow: var(--shadow); color: var(--ink); }
.pnl-list__item:hover { text-decoration: none; border-color: var(--brand); }
.pnl-msg { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 15px; margin-bottom: 8px; box-shadow: var(--shadow); }
.pnl-msg--admin { border-left: 3px solid var(--brand); }
.pnl-msg__meta { color: var(--muted); font-size: 13px; margin-bottom: 4px; }
textarea.pnl-input { resize: vertical; min-height: 90px; }
@media (max-width: 640px) { .pnl-grid-2 { grid-template-columns: 1fr; } }

.pnl-field-err { color: #d64535; font-size: 13px; margin-top: 6px; }

.pnl-amount { font-size: 28px; font-weight: 800; color: var(--navy); margin: 6px 0 16px; }

.pnl-svc-info { color: var(--muted); font-size: 13px; margin: -8px 0 18px; }
.pnl-charge { background: var(--field); border: 1px solid var(--field-line); border-radius: var(--radius-sm); padding: 13px 16px; margin-bottom: 18px; font-size: 15px; color: var(--navy); display: flex; justify-content: space-between; align-items: center; }
.pnl-charge b { color: var(--brand); font-size: 18px; }

.pnl-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; margin-top: 22px; }
.pnl-tile { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); color: var(--ink); font-weight: 600; transition: border-color .18s, transform .18s; }
.pnl-tile:hover { text-decoration: none; border-color: var(--brand); transform: translateY(-2px); }
.pnl-tile__ic { width: 44px; height: 44px; border-radius: 11px; background: #eef3fd; display: flex; align-items: center; justify-content: center; color: var(--brand); }
.pnl-tile__ic svg { width: 22px; height: 22px; }

.pnl-thread { display: flex; flex-direction: column; gap: 10px; margin: 8px 0 18px; }
.pnl-bubble { max-width: 78%; padding: 12px 15px; border-radius: 14px; box-shadow: var(--shadow); }
.pnl-bubble__meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.pnl-bubble--support { align-self: flex-start; background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.pnl-bubble--me { align-self: flex-end; background: var(--brand); color: #fff; border-bottom-right-radius: 4px; }
.pnl-bubble--me .pnl-bubble__meta { color: rgba(255,255,255,.8); }

.pnl-badge--err { background: #fdecea; color: #c23a2b; }
.pnl-how { padding: 56px 0; }
.pnl-how__title { text-align: center; font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--navy); margin: 0 0 8px; }
.pnl-how__sub { text-align: center; color: var(--muted); margin: 0 0 40px; }
.pnl-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.pnl-step { text-align: center; }
.pnl-step__n { width: 56px; height: 56px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 800; font-size: 22px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; box-shadow: var(--shadow); }
.pnl-step h3 { margin: 0 0 6px; font-size: 16px; color: var(--navy); }
.pnl-step p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
@media (max-width: 640px) { .pnl-steps { grid-template-columns: 1fr 1fr; } }

.pnl-footer { background: #fff; border-top: 1px solid var(--line); margin-top: 48px; padding: 28px 0; }
.pnl-footer__inner { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.pnl-footer__brand { font-weight: 800; color: var(--brand); font-size: 18px; }
.pnl-footer__links { display: flex; gap: 22px; margin: 0 auto; flex-wrap: wrap; }
.pnl-footer__links a { color: var(--navy); font-weight: 600; }
.pnl-footer__copy { color: var(--muted); font-size: 14px; }
@media (max-width: 640px) { .pnl-footer__inner { flex-direction: column; align-items: flex-start; gap: 14px; } .pnl-footer__links { margin: 0; } }

.pnl-demo-badge { display: inline-block; background: #ffd45e; color: #6b4e00; font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 6px; letter-spacing: .5px; margin-left: 10px; vertical-align: middle; }
.pnl-demo-hint { text-align: center; margin-top: 14px; font-size: 13px; color: var(--muted); }
.pnl-demo-hint b { color: var(--navy); }