/* ═══════════════════════════════════════════════════════════
   RADIANZ V2 — "Terminal Noir" Documentation Pages
   Shared styles for all /docs/* pages
   ═══════════════════════════════════════════════════════════ */

/* ── Page Shell ── */
.v2-docs-page {
    position: relative;
    min-height: 100vh;
    background: var(--v2-bg);
    color: var(--v2-text);
    font-family: var(--v2-font-body);
    padding: 0 2rem 4rem;
    animation: v2DocsFadeIn 0.5s ease-out;
}

@keyframes v2DocsFadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Clear fixed header in landing layout */
.v2-main .v2-docs-page {
    padding-top: 5rem;
}

/* ── Container ── */
.v2-docs-container {
    max-width: 1100px;
    margin: 0 auto;
}

/* ── Page Header ── */
.v2-docs-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2.5rem 0 2rem;
    border-bottom: 1px solid var(--v2-border);
    margin-bottom: 2rem;
}
.v2-docs-header-icon {
    width: 64px; height: 64px;
    border-radius: var(--v2-radius);
    background: var(--v2-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #fff;
    flex-shrink: 0;
}
.v2-docs-title {
    font-family: var(--v2-font-display);
    font-weight: 700;
    font-size: 2.2rem;
    color: var(--v2-text-bright);
    letter-spacing: -0.02em;
    margin: 0 0 0.25rem;
    line-height: 1.15;
}
.v2-docs-subtitle {
    font-family: var(--v2-font-body);
    font-size: 1rem;
    color: var(--v2-text-dim);
    margin: 0;
    line-height: 1.5;
}

/* ── Quick Navigation Grid ── */
.v2-docs-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2.5rem;
}
.v2-docs-nav-card {
    background: var(--v2-surface);
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: border-color 0.25s ease, background 0.25s ease;
    position: relative;
    overflow: hidden;
    /* Reset button defaults */
    font: inherit;
    color: inherit;
    text-align: left;
    width: 100%;
}
.v2-docs-nav-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: var(--v2-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}
.v2-docs-nav-card:hover {
    border-color: var(--v2-border-hover);
    background: var(--v2-surface-2);
}
.v2-docs-nav-card:hover::after {
    transform: scaleX(1);
}
.v2-docs-nav-card:focus-visible {
    outline: none;
    border-color: var(--v2-accent);
    box-shadow: 0 0 0 3px var(--v2-accent-glow);
}
.v2-docs-nav-icon {
    width: 44px; height: 44px;
    border-radius: var(--v2-radius-sm);
    background: var(--v2-accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: var(--v2-accent-light);
    flex-shrink: 0;
    transition: background 0.25s ease, color 0.25s ease;
}
.v2-docs-nav-card:hover .v2-docs-nav-icon {
    background: var(--v2-accent);
    color: #fff;
}
.v2-docs-nav-label {
    font-family: var(--v2-font-display);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--v2-text-bright);
    margin: 0;
}

/* ── Section Card ── */
.v2-docs-section {
    background: var(--v2-surface);
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius);
    overflow: hidden;
    margin-bottom: 2rem;
    scroll-margin-top: 80px;
}

/* Section Header */
.v2-docs-section-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--v2-surface-2);
    border-bottom: 1px solid var(--v2-border);
}
.v2-docs-section-icon {
    width: 42px; height: 42px;
    border-radius: var(--v2-radius-sm);
    background: var(--v2-accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--v2-accent-light);
    flex-shrink: 0;
}
.v2-docs-section-title {
    font-family: var(--v2-font-display);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--v2-text-bright);
    margin: 0;
    letter-spacing: -0.01em;
}
.v2-docs-section-desc {
    font-size: 0.875rem;
    color: var(--v2-text-dim);
    margin: 0.15rem 0 0;
}

/* Section Body */
.v2-docs-section-body {
    padding: 1.5rem 2rem 2rem;
}

/* ── Content Typography ── */
.v2-docs-step-title {
    font-family: var(--v2-font-display);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--v2-text-bright);
    margin: 1.5rem 0 0.5rem;
}
.v2-docs-step-title:first-child { margin-top: 0; }

.v2-docs-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--v2-text);
    margin-bottom: 0.75rem;
}

/* ── Terminal Code Block ── */
.v2-docs-code {
    background: var(--v2-void);
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius-sm);
    overflow: hidden;
    margin-top: 0.75rem;
}
.v2-docs-code-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem;
    background: var(--v2-surface-2);
    border-bottom: 1px solid var(--v2-border);
}
.v2-docs-code-lang {
    font-family: var(--v2-font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--v2-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.v2-docs-copy-btn {
    background: transparent;
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius-sm);
    color: var(--v2-text-dim);
    padding: 0.3rem 0.75rem;
    font-family: var(--v2-font-mono);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.v2-docs-copy-btn:hover {
    background: var(--v2-accent);
    color: #fff;
    border-color: var(--v2-accent);
}
.v2-docs-code pre {
    margin: 0;
    padding: 1.25rem;
    color: var(--v2-text);
    font-family: var(--v2-font-mono);
    font-size: 0.875rem;
    line-height: 1.7;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    tab-size: 2;
}
.v2-docs-code code {
    font-family: var(--v2-font-mono);
    color: var(--v2-text);
}

/* ── Architecture Flow ── */
.v2-docs-flow-box {
    background: var(--v2-surface-2);
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius);
    padding: 2rem;
    margin-top: 1.25rem;
}
.v2-docs-flow-box h6 {
    font-family: var(--v2-font-display);
    font-weight: 600;
    font-size: 1rem;
    color: var(--v2-text-bright);
    margin: 0 0 1.5rem;
    text-align: center;
    letter-spacing: -0.01em;
}
.v2-docs-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.v2-docs-flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 2rem;
    background: var(--v2-surface);
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius);
    min-width: 120px;
}
.v2-docs-flow-icon {
    width: 52px; height: 52px;
    border-radius: 50%;
    background: var(--v2-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.35rem;
}
.v2-docs-flow-step span {
    font-family: var(--v2-font-display);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--v2-text-bright);
}
.v2-docs-flow-arrow {
    color: var(--v2-accent-light);
    font-size: 1.5rem;
    opacity: 0.5;
}

/* ── Tip / Info Box ── */
.v2-docs-tip {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--v2-accent-bg);
    border-left: 3px solid var(--v2-accent);
    border-radius: 0 var(--v2-radius-sm) var(--v2-radius-sm) 0;
    margin-top: 1.5rem;
}
.v2-docs-tip > i {
    color: var(--v2-accent-light);
    font-size: 1.15rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}
.v2-docs-tip-body {
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--v2-text);
}
.v2-docs-tip-body strong {
    color: var(--v2-text-bright);
    display: block;
    margin-bottom: 0.25rem;
}

/* ── Feature List ── */
.v2-docs-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem 2rem;
    margin-top: 1.25rem;
}
.v2-docs-feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0;
    color: var(--v2-text);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--v2-border);
}
.v2-docs-feature-item:last-child { border-bottom: none; }
.v2-docs-feature-item i {
    color: var(--v2-accent-light);
    font-size: 0.9rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

/* ── Language Cards Grid ── */
.v2-docs-lang-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-top: 1.25rem;
}
.v2-docs-lang-card {
    background: var(--v2-surface-2);
    border: 1px solid var(--v2-border);
    border-radius: var(--v2-radius);
    padding: 1.5rem;
    min-width: 0;
}
.v2-docs-lang-card h6 {
    font-family: var(--v2-font-display);
    font-weight: 600;
    font-size: 1rem;
    color: var(--v2-text-bright);
    margin: 0 0 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.v2-docs-lang-card h6 i {
    color: var(--v2-accent-light);
}

/* ── Options Table ── */
.v2-docs-table-wrap {
    margin-top: 1rem;
    overflow-x: auto;
}
.v2-docs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.875rem;
}
.v2-docs-table thead th {
    background: var(--v2-surface-2);
    color: var(--v2-text-dim);
    font-family: var(--v2-font-mono);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--v2-border);
    text-align: left;
    white-space: nowrap;
}
.v2-docs-table tbody td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--v2-border);
    color: var(--v2-text);
    vertical-align: middle;
}
.v2-docs-table tbody tr:last-child td {
    border-bottom: none;
}
.v2-docs-table tbody tr:hover td {
    background: var(--v2-accent-bg);
}
.v2-docs-table code {
    font-family: var(--v2-font-mono);
    font-size: 0.8rem;
    color: var(--v2-accent-light);
    background: var(--v2-accent-bg);
    padding: 0.15rem 0.45rem;
    border-radius: 3px;
}
.v2-docs-table .v2-type {
    font-family: var(--v2-font-mono);
    font-size: 0.8rem;
    color: var(--v2-text-dim);
}


/* ── Docs Loading State ── */
.v2-docs-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
}
.v2-docs-loading-icon {
    font-size: 2rem;
    color: var(--v2-accent);
}
.v2-docs-loading-text {
    margin-top: 1rem;
    color: var(--v2-text-dim);
}

/* ── Spacing helpers ── */
.v2-docs-mb { margin-bottom: 1.5rem; }
.v2-docs-mt { margin-top: 1.5rem; }

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
    .v2-docs-nav { grid-template-columns: repeat(2, 1fr); }
    .v2-docs-lang-grid { grid-template-columns: 1fr; }
    .v2-docs-features { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .v2-docs-page { padding: 0 1rem 3rem; }
    .v2-docs-nav { grid-template-columns: 1fr; }
    .v2-docs-header { flex-direction: column; text-align: center; }
    .v2-docs-title { font-size: 1.6rem; }
    .v2-docs-section-body { padding: 1.25rem; }
    .v2-docs-section-head { padding: 1rem 1.25rem; }
    .v2-docs-flow { flex-direction: column; gap: 0.75rem; }
    .v2-docs-flow-step { padding: 1rem 1.25rem; min-width: 0; }
    .v2-docs-flow-icon { width: 40px; height: 40px; font-size: 1.1rem; }
    .v2-docs-flow-arrow { transform: rotate(90deg); font-size: 1rem; }
    .v2-docs-code pre { font-size: 0.8rem; padding: 1rem; }
}