/* LunoBar Docs (OpenAI/Cursor-like) */

:root {
    --docs-nav-w: 288px;
    --docs-max: 1240px;
    --docs-radius: 14px;
}

.docs-shell {
    margin-top: 72px; /* navbar height */
    min-height: calc(100vh - 72px);
    background: var(--bg-primary);
    display: flex;
}

/* Left nav */
.docs-nav {
    width: var(--docs-nav-w);
    position: fixed;
    top: 72px;
    left: 0;
    height: calc(100vh - 72px);
    background: rgba(37, 37, 37, 0.85);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--border);
    overflow: hidden; /* 스크롤은 메뉴 영역에서만 */
    z-index: 110;
}

.docs-nav-inner {
    height: 100%;
    display: flex;
    flex-direction: column;
    min-height: 0; /* flex child overflow 스크롤 활성화 필수 */
    padding: 18px 16px 16px 16px;
}

.docs-nav-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.01em;
    margin-bottom: 10px;
}

/* Search (avoid inner scrollbars, single-line) */
.docs-nav-search {
    position: relative;
}

.docs-search-input {
    width: 100%;
    height: 40px;
    padding: 0 12px 0 36px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(31, 31, 31, 0.65);
    color: var(--text-primary);
    outline: none;
    line-height: 40px;
    font-size: 13px;
    overflow: hidden; /* prevent inner scrollbars */
    white-space: nowrap;
    text-overflow: ellipsis;
    appearance: none;
    -webkit-appearance: none;
}

.docs-nav-search::before {
    content: "";
    position: absolute;
    left: 12px;
    top: 50%;
    width: 16px;
    height: 16px;
    transform: translateY(-50%);
    opacity: 0.75;
    background-repeat: no-repeat;
    background-size: 16px 16px;
    /* inline SVG magnifier */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3'/%3E%3C/svg%3E");
}

.docs-search-input:focus {
    border-color: rgba(99, 102, 241, 0.45);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

.docs-search-input::-webkit-search-cancel-button {
    -webkit-appearance: none;
}

.docs-search-input::placeholder {
    color: rgba(255, 255, 255, 0.55);
}

.docs-nav-section {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* 메뉴만 스크롤되도록 분리 */
.docs-nav-scroll {
    flex: 1;
    overflow: auto;
    min-height: 0; /* 실제 스크롤 영역이 줄어들 수 있어야 overflow가 동작 */
    padding: 6px 0 12px 0;
    margin-top: 10px;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.22) transparent;
    -webkit-overflow-scrolling: touch;
}

.docs-nav-scroll::-webkit-scrollbar {
    width: 10px;
}

.docs-nav-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.docs-nav-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    border: 3px solid transparent;
    background-clip: padding-box;
}

.docs-nav-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.22);
    border: 3px solid transparent;
    background-clip: padding-box;
}

.docs-nav-section-title {
    font-size: 11px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 8px 8px 8px;
}

.docs-nav-link {
    display: block;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.78);
    padding: 8px 10px;
    border-radius: 10px;
    margin: 2px 0;
    font-size: 14px;
    transition: background 0.15s ease, color 0.15s ease;
}

.docs-nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.95);
}

.docs-nav-link.is-active {
    background: rgba(99, 102, 241, 0.12);
    color: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(99, 102, 241, 0.22);
}

.docs-nav-link.is-hidden {
    display: none;
}

/* Main */
.docs-main {
    flex: 1;
    margin-left: var(--docs-nav-w);
}

.docs-topbar {
    position: sticky;
    top: 72px;
    z-index: 109;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(31, 31, 31, 0.7);
    backdrop-filter: blur(12px);
}

.docs-topbar-title {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
}

.docs-topbar-spacer {
    width: 40px;
    height: 1px;
}

.docs-layout {
    max-width: var(--docs-max);
    margin: 0 auto;
    display: block;
    padding: 26px 20px 72px 20px;
}

.docs-article {
    min-width: 0;
}

.docs-hero {
    padding: 26px 22px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--docs-radius);
    background: radial-gradient(1200px 400px at 0% 0%, rgba(99, 102, 241, 0.18), transparent 55%),
                radial-gradient(1200px 400px at 100% 0%, rgba(236, 72, 153, 0.14), transparent 55%),
                rgba(37, 37, 37, 0.55);
    backdrop-filter: blur(10px);
}

.docs-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 12px;
}

.docs-h1 {
    font-size: 44px;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 10px 0;
    font-weight: 800;
    color: var(--text-primary);
}

.docs-lead {
    margin: 0 0 18px 0;
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.78);
}

.docs-hero-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 14px;
}

.docs-hero-card {
    text-decoration: none;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(31, 31, 31, 0.55);
    padding: 14px 14px;
    transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.docs-hero-card:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.35);
    background: rgba(31, 31, 31, 0.7);
}

.docs-hero-card-title {
    font-weight: 700;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 4px;
    font-size: 14px;
}

.docs-hero-card-desc {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.68);
}

/* Content */
.docs-section {
    padding: 22px 4px 0 4px;
}

/* Panel mode: show only one section at a time */
.docs-panel {
    display: none;
}

.docs-panel.is-active {
    display: block;
}

.docs-h2 {
    font-size: 26px;
    font-weight: 750;
    letter-spacing: -0.01em;
    margin: 0 0 12px 0;
    color: rgba(255, 255, 255, 0.95);
}

.docs-h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 18px 0 10px 0;
    color: rgba(255, 255, 255, 0.92);
}

.docs-article p {
    color: rgba(255, 255, 255, 0.78);
    margin: 0 0 12px 0;
}

.docs-list {
    margin: 10px 0 14px 18px;
    padding-left: 16px;
    color: rgba(255, 255, 255, 0.78);
}

.docs-list li {
    margin: 8px 0;
}

.docs-list strong {
    color: rgba(255, 255, 255, 0.92);
    font-weight: 700;
}

.docs-article code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95em;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1px 6px;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.9);
}

.docs-code-block {
    margin: 14px 0 16px 0;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(31, 31, 31, 0.65);
}

.docs-code-block .code-header {
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.58);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(37, 37, 37, 0.7);
}

.docs-code-block pre {
    margin: 0;
    padding: 14px 14px;
    overflow: auto;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.docs-code-block pre code {
    background: transparent;
    border: none;
    padding: 0;
    border-radius: 0;
    color: inherit;
}

/* Callouts */
.docs-callout {
    margin: 14px 0 16px 0;
    padding: 14px 14px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.78);
}

.docs-callout strong {
    color: rgba(255, 255, 255, 0.95);
}

.docs-callout-info {
    border-color: rgba(99, 102, 241, 0.28);
    background: rgba(99, 102, 241, 0.10);
}

.docs-callout-warn {
    border-color: rgba(236, 72, 153, 0.26);
    background: rgba(236, 72, 153, 0.10);
}

/* Mobile nav toggle */
.docs-nav-toggle {
    width: 40px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
}

.docs-nav-toggle-bars {
    width: 18px;
    height: 12px;
    position: relative;
    display: block;
}

.docs-nav-toggle-bars::before,
.docs-nav-toggle-bars::after,
.docs-nav-toggle-bars {
    background: transparent;
}

.docs-nav-toggle-bars::before,
.docs-nav-toggle-bars::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 2px;
}

.docs-nav-toggle-bars::before {
    top: 0;
}

.docs-nav-toggle-bars::after {
    bottom: 0;
}

.docs-nav-toggle-bars {
    height: 2px;
}

.docs-nav-toggle-bars {
    background: rgba(255, 255, 255, 0.85);
    border-radius: 2px;
}

.docs-nav-overlay {
    display: none;
}

/* FAQ */
.docs-faq details {
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 12px;
    margin: 10px 0;
}

.docs-faq summary {
    cursor: pointer;
    color: rgba(255, 255, 255, 0.92);
    font-weight: 700;
}

.docs-faq-body {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.75);
}

/* Responsive */
@media (max-width: 1180px) {
    .docs-hero-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    .docs-nav {
        transform: translateX(-102%);
        transition: transform 0.2s ease;
        box-shadow: var(--shadow-xl);
    }

    .docs-nav.is-open {
        transform: translateX(0);
    }

    .docs-main {
        margin-left: 0;
    }

    .docs-nav-toggle {
        display: inline-flex;
    }

    .docs-nav-overlay {
        position: fixed;
        inset: 72px 0 0 0;
        background: rgba(0, 0, 0, 0.55);
        display: none;
        z-index: 109;
    }

    .docs-nav-overlay.is-open {
        display: block;
    }
}

@media (max-width: 560px) {
    .docs-h1 {
        font-size: 36px;
    }
    .docs-layout {
        padding: 18px 14px 60px 14px;
        gap: 18px;
    }
    .docs-hero {
        padding: 18px 16px;
    }
}