/* nav-search.css — Navigation search panel styles (extracted from nav-search.js injectCSS)
 * Covers: nav-search-btn, nav-search-panel, search results, item icons,
 *         hero-search-dropdown (homepage only), and full light-mode overrides.
 * Load order: after tokens.css and style.css, on homepage + all landing pages.
 */

/* ── Homepage hero search dropdown ── */
.hero-search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    max-height: 440px;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--calc-bg-page);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(0, 243, 255, 0.06);
    z-index: 100;
    display: none;
}

.hero-search-dropdown.open {
    display: block;
}

.hero-search-dropdown::-webkit-scrollbar {
    width: 4px;
}

.hero-search-dropdown::-webkit-scrollbar-track {
    background: transparent;
}

.hero-search-dropdown::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}

[data-theme="light"] .hero-search-dropdown {
    background: #fff;
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .hero-search-dropdown .nav-search-section-header {
    color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .hero-search-dropdown .nav-search-item:hover,
[data-theme="light"] .hero-search-dropdown .nav-search-item.focused {
    background: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .hero-search-dropdown .nav-search-item-name {
    color: #0F172A;
}

[data-theme="light"] .hero-search-dropdown .nav-search-item-name mark {
    color: #0E7490;
}

[data-theme="light"] .hero-search-dropdown .nav-search-item-desc {
    color: rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .hero-search-dropdown .nav-search-item-cat {
    color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .hero-search-dropdown .nav-search-empty {
    color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .hero-search-dropdown .nav-search-hint {
    border-top-color: rgba(0, 0, 0, 0.08);
    color: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .hero-search-dropdown .nav-search-hint kbd {
    background: rgba(0, 0, 0, 0.06);
}

/* ── Search button in navbar ── */
.nav-search-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    min-width: 180px;
    padding: 7px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.10);
    color: rgba(255, 255, 255, 0.4);
    font-family: Inter, sans-serif;
    font-size: 0.82rem;
    cursor: pointer;
    flex-shrink: 0;
    transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.nav-search-btn:hover {
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.25);
}

.nav-search-btn.active {
    color: #00f3ff;
    border-color: rgba(0, 243, 255, 0.3);
}

.nav-search-btn__label {
    pointer-events: none;
    flex: 1;
}

.nav-search-btn__kbd {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.3);
    pointer-events: none;
    margin-left: auto;
}

@media (max-width: 1400px) {
    .nav-search-btn__kbd { display: none; }
    .nav-search-btn { min-width: 140px; }
}

@media (max-width: 1200px) {
    .nav-search-btn {
        padding: 8px 10px;
        gap: 0;
        min-width: unset;
        margin-left: auto;
        margin-right: 4px;
        background: transparent;
        border-color: transparent;
    }
    .nav-search-btn__label,
    .nav-search-btn__kbd { display: none; }
    .nav-search-btn svg { width: 20px; height: 20px; }
}

/* Light navbar override (calculator pages) */
.glass-navbar.ns-light .nav-search-btn {
    color: rgba(0, 0, 0, 0.45);
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.12);
}

.glass-navbar.ns-light .nav-search-btn:hover {
    color: #000;
    background: rgba(0, 0, 0, 0.06);
    border-color: rgba(0, 0, 0, 0.2);
}

.glass-navbar.ns-light .nav-search-btn.active {
    color: #1a56db;
}

.glass-navbar.ns-light .nav-search-btn__kbd {
    border-color: rgba(0, 0, 0, 0.12);
    background: rgba(0, 0, 0, 0.04);
    color: rgba(0, 0, 0, 0.35);
}

/* Light theme override */
[data-theme="light"] .nav-search-btn {
    color: #94A3B8;
    background: #FFFFFF;
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .nav-search-btn:hover {
    color: #475569;
    background: #F8FAFC;
    border-color: rgba(14, 116, 144, 0.3);
}

[data-theme="light"] .nav-search-btn.active {
    color: #0E7490;
    border-color: rgba(14, 116, 144, 0.4);
}

[data-theme="light"] .nav-search-btn__kbd {
    border-color: rgba(0, 0, 0, 0.1);
    background: #F0F4F9;
    color: #94A3B8;
}

@media (max-width: 1200px) {
    [data-theme="light"] .nav-search-btn {
        background: transparent;
        border-color: transparent;
        box-shadow: none;
        color: #475569;
    }
}

/* ── Search backdrop ── */
.nav-search-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 9998;
    display: none;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.nav-search-backdrop.open {
    display: block;
}

/* ── Search panel ── */
.nav-search-panel {
    position: fixed;
    top: 68px;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, calc(100vw - 24px));
    background: var(--calc-bg-page);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(0, 243, 255, 0.06);
    z-index: 9999;
    overflow: hidden;
    display: none;
}

.nav-search-panel.open {
    display: block;
}

/* ── Input row ── */
.nav-search-input-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-search-icon {
    color: rgba(255, 255, 255, 0.4);
    flex-shrink: 0;
}

.nav-search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 0.95rem;
    font-family: inherit;
}

.nav-search-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.nav-search-close {
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.4);
    display: flex;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s;
}

.nav-search-close:hover {
    color: #fff;
}

/* ── Results list ── */
.nav-search-results {
    max-height: 440px;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-bottom: 6px;
}

.nav-search-results::-webkit-scrollbar {
    width: 4px;
}

.nav-search-results::-webkit-scrollbar-track {
    background: transparent;
}

.nav-search-results::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}

.nav-search-section-header {
    padding: 10px 16px 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.3);
    user-select: none;
}

/* ── Result items ── */
.nav-search-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 16px;
    cursor: pointer;
    transition: background 0.12s;
    text-decoration: none;
    color: inherit;
}

.nav-search-item:hover,
.nav-search-item.focused {
    background: rgba(255, 255, 255, 0.06);
}

.nav-search-item-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-search-item-icon.calc    { background: rgba(0, 243, 255, 0.1);  color: #00f3ff; }
.nav-search-item-icon.guide   { background: rgba(255, 215, 0, 0.1);  color: #FFD700; }
.nav-search-item-icon.blog    { background: rgba(188, 19, 254, 0.1); color: #bc13fe; }
.nav-search-item-icon.compare { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.nav-search-item-icon.state   { background: rgba(56, 189, 248, 0.1); color: #38bdf8; }
.nav-search-item-icon.flow    { background: rgba(251, 191, 36, 0.1); color: #fbbf24; }

.nav-search-item-text {
    flex: 1;
    min-width: 0;
}

.nav-search-item-name {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.88);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-search-item-name mark {
    background: none;
    color: #00f3ff;
    font-weight: 600;
}

.nav-search-item-desc {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.4);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.nav-search-item-cat {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.35);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ── Empty state ── */
.nav-search-empty {
    padding: 24px 16px;
    text-align: center;
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* ── Keyboard hint bar ── */
.nav-search-hint {
    padding: 8px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.2);
    display: flex;
    gap: 12px;
}

.nav-search-hint kbd {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    padding: 1px 5px;
    font-size: 0.68rem;
}

/* ── Near-miss / fallback suggestions ── */
.nav-search-near-miss {
    padding: 6px 16px 2px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.45);
}

.nav-search-near-miss a {
    color: #00f3ff;
    text-decoration: none;
}

.nav-search-near-miss a:hover {
    text-decoration: underline;
}

.nav-search-fallback-label {
    padding: 8px 16px 3px;
    font-size: 0.68rem;
    color: rgba(255, 255, 255, 0.28);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font-family: 'JetBrains Mono', monospace;
}

.nav-search-fallbacks {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 4px 16px 12px;
}

.nav-search-fallback-item {
    font-size: 0.78rem;
    padding: 4px 10px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.nav-search-fallback-item:hover {
    background: rgba(0, 243, 255, 0.1);
    color: #00f3ff;
}

/* ── Light mode overrides — near-miss / fallback ── */
[data-theme="light"] .nav-search-near-miss { color: rgba(0, 0, 0, 0.5); }
[data-theme="light"] .nav-search-near-miss a { color: #0E7490; }
[data-theme="light"] .nav-search-fallback-label { color: rgba(0, 0, 0, 0.3); }
[data-theme="light"] .nav-search-fallback-item { background: rgba(0, 0, 0, 0.04); color: rgba(0, 0, 0, 0.55); }
[data-theme="light"] .nav-search-fallback-item:hover { background: rgba(14, 116, 144, 0.1); color: #0E7490; }

/* ── Light mode overrides — search modal ── */
[data-theme="light"] .nav-search-backdrop {
    background: rgba(0, 0, 0, 0.18);
}

[data-theme="light"] .nav-search-panel {
    background: #FFFFFF;
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .nav-search-input-wrap {
    border-bottom-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .nav-search-icon { color: #94A3B8; }
[data-theme="light"] .nav-search-input { color: #0F172A; }
[data-theme="light"] .nav-search-input::placeholder { color: rgba(0, 0, 0, 0.4); }
[data-theme="light"] .nav-search-close { color: #94A3B8; }
[data-theme="light"] .nav-search-close:hover { color: #0F172A; }
[data-theme="light"] .nav-search-results::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.12); }
[data-theme="light"] .nav-search-section-header { color: #94A3B8; }

[data-theme="light"] .nav-search-item:hover,
[data-theme="light"] .nav-search-item.focused { background: #F0F9FF; }

[data-theme="light"] .nav-search-item-icon.calc    { background: rgba(14, 116, 144, 0.08);  color: #0E7490; }
[data-theme="light"] .nav-search-item-icon.guide   { background: rgba(161, 98, 7, 0.08);    color: #92400E; }
[data-theme="light"] .nav-search-item-icon.blog    { background: rgba(124, 58, 237, 0.08);  color: #7C3AED; }
[data-theme="light"] .nav-search-item-icon.compare { background: rgba(5, 150, 105, 0.08);   color: #065F46; }
[data-theme="light"] .nav-search-item-icon.state   { background: rgba(37, 99, 235, 0.08);   color: #1D4ED8; }
[data-theme="light"] .nav-search-item-icon.flow    { background: rgba(161, 98, 7, 0.08);    color: #92400E; }

[data-theme="light"] .nav-search-item-name { color: #0F172A; }
[data-theme="light"] .nav-search-item-name mark { color: #0E7490; }
[data-theme="light"] .nav-search-item-desc { color: #64748B; }
[data-theme="light"] .nav-search-item-cat { color: #94A3B8; }
[data-theme="light"] .nav-search-empty { color: #64748B; }
[data-theme="light"] .nav-search-hint { border-top-color: rgba(0, 0, 0, 0.06); color: #94A3B8; }
[data-theme="light"] .nav-search-hint kbd { background: #F0F4F9; color: #64748B; }

/* ── Responsive ── */
@media (max-width: 600px) {
    .nav-search-panel {
        top: 56px;
        width: calc(100vw - 16px);
    }
}