:root {
    --bn-navy: #1b365d;
    --bn-navy-soft: #2a4a73;
    --bn-ink: #1c2430;
    --bn-muted: #5e6773;
    --bn-paper: #f3f1eb;
    --bn-surface: #fffcf7;
    --bn-line: #e3ddd2;
    --bn-line-strong: #d4cdc0;
    --bn-accent: #1b365d;
    --bn-accent-hover: #152a4a;
    --bn-ok: #2d6a4f;
    --bn-danger: #8f3a3a;
    --bn-warn: #8a6a2b;
    --bn-chip: #eef2f7;
    --bn-shadow: 0 1px 2px rgba(27, 54, 93, 0.05), 0 10px 28px rgba(27, 54, 93, 0.07);
    --bn-radius: 18px;
    --bn-radius-sm: 12px;
    --bn-sidebar: 248px;
    --bn-header: 64px;
    --bn-sans: "Outfit", "Segoe UI", system-ui, sans-serif;
    --bn-serif: "Newsreader", "Iowan Old Style", Georgia, serif;
}

html[data-theme="dark"] {
    --bn-navy: #9eb6dc;
    --bn-navy-soft: #c5d4ec;
    --bn-ink: #ece8e0;
    --bn-muted: #a8a297;
    --bn-paper: #12151c;
    --bn-surface: #1a1e27;
    --bn-line: #2c3240;
    --bn-line-strong: #3b4252;
    --bn-accent: #8aa4d4;
    --bn-accent-hover: #b7c7e4;
    --bn-ok: #7dba9a;
    --bn-danger: #d98989;
    --bn-warn: #d4b56a;
    --bn-chip: #242a36;
    --bn-shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 12px 32px rgba(0, 0, 0, 0.28);
}

* { -webkit-tap-highlight-color: transparent; }

html {
    scroll-behavior: smooth;
}

body.bn-body {
    margin: 0;
    min-height: 100vh;
    background: var(--bn-paper);
    color: var(--bn-ink);
    font-family: var(--bn-sans);
    -webkit-font-smoothing: antialiased;
}

h1, h2, .bn-serif {
    font-family: var(--bn-serif);
    letter-spacing: -0.02em;
}

a { color: inherit; }

.bn-preview-ribbon {
    position: fixed;
    z-index: 80;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bn-ink);
    color: var(--bn-surface);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 999px;
    pointer-events: none;
    opacity: 0.88;
}

.bn-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--bn-sidebar);
    background: var(--bn-surface);
    border-right: 1px solid var(--bn-line);
    z-index: 50;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.bn-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 22px 20px 12px;
    text-decoration: none;
    color: var(--bn-ink);
}

.bn-logo img {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.bn-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.bn-logo-text strong {
    font-family: var(--bn-serif);
    font-size: 22px;
    font-weight: 600;
}

.bn-logo-text span {
    font-size: 11px;
    color: var(--bn-muted);
}

.bn-welcome {
    margin: 8px 16px 12px;
    padding: 10px 12px;
    border-radius: 12px;
    background: var(--bn-chip);
    color: var(--bn-muted);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.bn-nav {
    flex: 1;
    overflow-y: auto;
    padding: 4px 12px 16px;
}

.bn-nav a,
.bn-nav button.bn-nav-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 0;
    background: transparent;
    border-radius: 12px;
    color: var(--bn-ink);
    text-decoration: none;
    font-size: 14.5px;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
}

.bn-nav a i,
.bn-nav-item i {
    width: 18px;
    text-align: center;
    color: var(--bn-muted);
}

.bn-nav a:hover,
.bn-nav-item:hover {
    background: var(--bn-chip);
}

.bn-nav a.is-active {
    background: var(--bn-navy);
    color: #fff;
}

.bn-nav a.is-active i {
    color: #fff;
}

html[data-theme="dark"] .bn-nav a.is-active {
    color: #12151c;
}

html[data-theme="dark"] .bn-nav a.is-active i {
    color: #12151c;
}

.bn-nav-sep {
    height: 1px;
    background: var(--bn-line);
    margin: 10px 8px;
}

.bn-theme-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    color: var(--bn-muted);
    font-size: 14px;
}

.bn-switch {
    width: 40px;
    height: 22px;
    border-radius: 999px;
    background: var(--bn-line-strong);
    position: relative;
    cursor: pointer;
    border: 0;
}

.bn-switch span {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    transition: transform 0.2s ease;
}

html[data-theme="dark"] .bn-switch {
    background: var(--bn-accent);
}

html[data-theme="dark"] .bn-switch span {
    transform: translateX(18px);
    background: #12151c;
}

.bn-sidebar-foot {
    padding: 16px 20px 22px;
    color: var(--bn-muted);
    font-size: 12px;
    line-height: 1.45;
    border-top: 1px solid var(--bn-line);
}

.bn-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(18, 21, 28, 0.45);
    z-index: 40;
}

.bn-overlay.is-open { display: block; }

.bn-main {
    margin-left: var(--bn-sidebar);
    min-height: 100vh;
}

.bn-header {
    position: sticky;
    top: 0;
    z-index: 30;
    height: var(--bn-header);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    background: color-mix(in srgb, var(--bn-paper) 86%, transparent);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--bn-line);
}

.bn-header h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
}

@media (min-width: 1025px) {
    .bn-header h2 { display: none; }
}

.bn-menu-btn {
    display: none;
    border: 0;
    background: transparent;
    color: var(--bn-ink);
    font-size: 18px;
    padding: 8px;
    cursor: pointer;
}

.bn-user {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 0;
    background: transparent;
    cursor: pointer;
    padding: 4px 8px 4px 4px;
    border-radius: 999px;
    color: var(--bn-ink);
}

.bn-user:hover { background: var(--bn-chip); }

.bn-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bn-navy);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

html[data-theme="dark"] .bn-avatar {
    color: #12151c;
}

.bn-user-meta {
    text-align: left;
    line-height: 1.2;
}

.bn-user-meta strong {
    display: block;
    font-size: 13px;
}

.bn-user-meta span {
    font-size: 11px;
    color: var(--bn-muted);
}

.bn-dropdown {
    display: none;
    position: absolute;
    right: 28px;
    top: 58px;
    width: 220px;
    background: var(--bn-surface);
    border: 1px solid var(--bn-line);
    border-radius: 16px;
    box-shadow: var(--bn-shadow);
    padding: 8px;
    z-index: 40;
}

.bn-dropdown.is-open { display: block; }

.bn-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 14px;
}

.bn-dropdown a:hover { background: var(--bn-chip); }

.bn-dropdown .bn-drop-head {
    padding: 10px 12px 12px;
    border-bottom: 1px solid var(--bn-line);
    margin-bottom: 6px;
}

.bn-dropdown .is-danger { color: var(--bn-danger); }

.bn-header-actions {
    display: flex;
    gap: 8px;
}

.bn-content {
    padding: 28px;
    max-width: 1180px;
}

.bn-card {
    background: var(--bn-surface);
    border: 1px solid var(--bn-line);
    border-radius: var(--bn-radius);
    box-shadow: var(--bn-shadow);
}

.bn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 12px;
    border: 1px solid transparent;
    background: var(--bn-navy);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
}

html[data-theme="dark"] .bn-btn { color: #12151c; }

.bn-btn:hover { background: var(--bn-accent-hover); }

.bn-btn-ghost {
    background: transparent;
    color: var(--bn-ink);
    border-color: var(--bn-line-strong);
}

html[data-theme="dark"] .bn-btn-ghost { color: var(--bn-ink); }

.bn-btn-ghost:hover { background: var(--bn-chip); }

.bn-input,
.bn-select,
.bn-textarea {
    width: 100%;
    min-height: 46px;
    padding: 0 14px;
    border-radius: 12px;
    border: 1px solid var(--bn-line-strong);
    background: var(--bn-surface);
    color: var(--bn-ink);
    font-size: 16px;
    font-family: inherit;
}

.bn-textarea { min-height: 120px; padding: 12px 14px; }

.bn-input:focus,
.bn-select:focus,
.bn-textarea:focus {
    outline: 0;
    border-color: var(--bn-navy);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--bn-navy) 18%, transparent);
}

.bn-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--bn-muted);
}

.bn-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--bn-chip);
    color: var(--bn-ink);
    font-size: 12px;
    font-weight: 600;
}

.bn-hero {
    padding: 8px 4px 28px;
}

.bn-hero h1 {
    margin: 0 0 8px;
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 600;
    line-height: 1.05;
}

.bn-hero p {
    margin: 0 0 22px;
    color: var(--bn-muted);
    font-size: 17px;
}

.bn-search-hero {
    display: flex;
    gap: 8px;
    max-width: 640px;
}

.bn-search-hero input {
    flex: 1;
}

.bn-module-grid,
.bn-note-grid,
.bn-stat-grid {
    display: grid;
    gap: 14px;
}

.bn-module-grid { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.bn-stat-grid { grid-template-columns: repeat(3, 1fr); }
.bn-note-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.bn-module {
    display: block;
    padding: 18px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.18s ease, border-color 0.18s ease;
}

.bn-module:hover {
    transform: translateY(-2px);
    border-color: var(--bn-navy);
}

.bn-module .bn-ico {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--bn-chip);
    color: var(--bn-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.bn-module h3 {
    margin: 0 0 6px;
    font-size: 20px;
    font-family: var(--bn-serif);
}

.bn-module p {
    margin: 0;
    color: var(--bn-muted);
    font-size: 13.5px;
    line-height: 1.45;
}

.bn-stat {
    padding: 18px;
    text-align: left;
}

.bn-stat strong {
    display: block;
    font-size: 28px;
    font-family: var(--bn-serif);
}

.bn-stat span {
    color: var(--bn-muted);
    font-size: 13px;
}

.bn-split {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 14px;
    margin-top: 14px;
}

.bn-panel { padding: 20px; }

.bn-panel h2 {
    margin: 0 0 14px;
    font-size: 22px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.bn-panel h2 a {
    font-family: var(--bn-sans);
    font-size: 13px;
    color: var(--bn-navy);
    font-weight: 600;
}

.bn-list-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--bn-line);
    text-decoration: none;
}

.bn-list-row:last-child { border-bottom: 0; }

.bn-list-row small { color: var(--bn-muted); }

.bn-rank {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--bn-line);
}

.bn-rank:last-child { border-bottom: 0; }

.bn-rank-n {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bn-chip);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    margin-right: 10px;
}

.bn-note-card {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    align-items: center;
    padding: 16px 18px;
}

.bn-code {
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.02em;
    background: var(--bn-navy);
    color: #fff;
    padding: 8px 10px;
    border-radius: 10px;
    min-width: 86px;
    text-align: center;
    justify-self: start;
}

html[data-theme="dark"] .bn-code { color: #12151c; }

.bn-note-title {
    margin: 0 0 4px;
    font-size: 16px;
    font-weight: 600;
}

.bn-note-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--bn-muted);
    font-size: 12.5px;
}

.bn-note-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.bn-icon-btn {
    width: 38px;
    height: 38px;
    border: 1px solid var(--bn-line);
    background: transparent;
    border-radius: 10px;
    color: var(--bn-muted);
    cursor: pointer;
}

.bn-icon-btn:hover {
    color: var(--bn-navy);
    border-color: var(--bn-navy);
}

.bn-empty {
    text-align: center;
    padding: 48px 16px;
    color: var(--bn-muted);
}

.bn-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 70;
    background: rgba(18, 21, 28, 0.5);
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.bn-modal.is-open { display: flex; }

.bn-modal-card {
    width: 100%;
    max-width: 420px;
    padding: 28px;
    text-align: center;
}

.bn-auth-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.bn-auth-brand {
    background: var(--bn-navy);
    color: #f7f4ee;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
}

html[data-theme="dark"] .bn-auth-brand {
    background: #0e1218;
    color: var(--bn-ink);
}

.bn-auth-brand-inner { max-width: 420px; }

.bn-auth-brand h1 {
    font-size: 56px;
    margin: 0 0 8px;
}

.bn-auth-brand p { color: rgba(247, 244, 238, 0.78); }

.bn-auth-feature {
    display: flex;
    gap: 14px;
    margin-top: 22px;
    align-items: flex-start;
}

.bn-auth-form {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    background: var(--bn-paper);
}

.bn-auth-form .bn-card {
    width: 100%;
    max-width: 440px;
    padding: 32px;
}

.bn-page-head {
    margin-bottom: 20px;
}

.bn-page-head h1 {
    margin: 0 0 6px;
    font-size: 32px;
}

.bn-page-head p { margin: 0; color: var(--bn-muted); }

.bn-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.bn-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.bn-filters .bn-input,
.bn-filters .bn-select { width: auto; min-width: 180px; flex: 1; }

.bn-dropzone {
    border: 1.5px dashed var(--bn-line-strong);
    border-radius: 16px;
    padding: 32px 16px;
    text-align: center;
    color: var(--bn-muted);
    background: color-mix(in srgb, var(--bn-chip) 50%, transparent);
}

.bn-contact {
    margin-top: 28px;
    text-align: center;
    color: var(--bn-muted);
}

.bn-contact a, .bn-contact button {
    background: none;
    border: 0;
    color: var(--bn-muted);
    font-size: 18px;
    margin: 0 8px;
    cursor: pointer;
}

.btn-gradient,
.bg-boun-gradient {
    background: var(--bn-navy) !important;
    color: #fff !important;
}
html[data-theme="dark"] .btn-gradient {
    color: #12151c !important;
}
.input-glow:focus {
    outline: 0;
    border-color: var(--bn-navy);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--bn-navy) 18%, transparent);
}

@media (max-width: 1024px) {
    .bn-sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }
    .bn-sidebar.is-open { transform: translateX(0); }
    .bn-main { margin-left: 0; }
    .bn-menu-btn { display: inline-flex; }
    .bn-header { padding: 0 16px; gap: 10px; }
    .bn-content { padding: 18px 16px 32px; }
    .bn-split, .bn-form-grid, .bn-stat-grid, .bn-auth-shell {
        grid-template-columns: 1fr;
    }
    .bn-auth-brand { display: none; }
    .bn-note-card { grid-template-columns: 1fr; }
    .bn-user-meta { display: none; }
    .bn-preview-ribbon { display: none; }
    .bn-search-hero {
        flex-direction: column;
    }
    .bn-search-hero .bn-btn { width: 100%; }
    .bn-header h2 {
        display: block;
        font-size: 17px;
        max-width: 42vw;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

@media (max-width: 640px) {
    .bn-header {
        height: auto;
        min-height: 56px;
        padding: 8px 12px;
    }
    .bn-header h2 { display: none; }
    .bn-btn { min-height: 36px; padding: 0 12px; font-size: 13px; }
    .bn-hero h1 { font-size: 30px; }
    .bn-hero p { font-size: 15px; }
    .bn-module-grid,
    .bn-stat-grid {
        grid-template-columns: 1fr;
    }
    .bn-note-actions { flex-wrap: wrap; justify-content: flex-start; }
    .bn-hide-mobile { display: none !important; }
}

/* Leftover page softening: keep inner Tailwind pages readable on paper */
.bn-content > .bg-white,
.bn-content > .bg-white.rounded-lg,
.bn-content .bg-white.rounded-lg.shadow-md,
.bn-content .bg-white.rounded-lg.shadow-lg,
.bn-content .dark\:bg-gray-800 {
    background: var(--bn-surface) !important;
    border: 1px solid var(--bn-line) !important;
    color: var(--bn-ink);
    box-shadow: var(--bn-shadow) !important;
}

.bn-content .text-blue-900,
.bn-content .text-gray-900,
.bn-content .text-gray-800 {
    color: var(--bn-ink) !important;
}

.bn-content .text-gray-600,
.bn-content .text-gray-700,
.bn-content .text-gray-500 {
    color: var(--bn-muted) !important;
}