/* ============================================================
   Tools — Engineering calculators (P016 S2.4)
   Aurora glass design system; inherits tokens.css variables.
   ============================================================ */

/* ── Shared ──────────────────────────────────────────────── */
.tools-intro {
    max-width: 60ch;
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    line-height: 1.7;
}

/* ── Tools hub grid ──────────────────────────────────────── */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.1rem;
    margin: 0;
    padding: 0;
}

.tools-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: .55rem;
    padding: 1.5rem 1.4rem;
    border: 1px solid var(--color-border-default);
    border-radius: 16px;
    background: var(--color-glass-surface);
    text-decoration: none;
    transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.tools-card:hover,
.tools-card:focus-visible {
    transform: translateY(-3px);
    border-color: var(--color-border-accent);
    background: var(--color-glass-hover);
    outline: none;
}

.tools-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--color-accent-cyan-dim);
    color: var(--color-accent-cyan);
}

.tools-card-icon svg {
    width: 22px;
    height: 22px;
}

.tools-card-badge {
    position: absolute;
    top: 1.1rem;
    inset-inline-end: 1.1rem;
    padding: .15rem .6rem;
    border-radius: 999px;
    background: var(--color-accent-teal-dim);
    color: var(--color-accent-teal);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: .3px;
}

.tools-card-title {
    color: var(--color-text-primary);
    font-size: var(--text-lg);
    font-weight: 700;
    line-height: 1.35;
}

.tools-card-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
}

/* ── Calculator layout ───────────────────────────────────── */
.k8s-calc {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
}

@media (max-width: 860px) {
    .k8s-calc {
        grid-template-columns: 1fr;
    }
}

/* ── Form ────────────────────────────────────────────────── */
.k8s-form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.k8s-fieldset {
    margin: 0;
    padding: 1.2rem 1.3rem 1.35rem;
    border: 1px solid var(--color-border-default);
    border-radius: 14px;
    background: var(--color-glass-surface);
}

.k8s-legend {
    width: auto;
    margin: 0 0 .35rem;
    padding: 0 .5rem;
    color: var(--color-accent-cyan);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .8px;
}

.k8s-field {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    margin-top: .85rem;
}

.k8s-field label,
.k8s-field .k8s-cap {
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    font-weight: 600;
}

.k8s-field input,
.k8s-field select,
.k8s-field textarea {
    padding: .55rem .7rem;
    border: 1px solid var(--color-border-default);
    border-radius: 9px;
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--text-base);
}

.k8s-field textarea {
    min-height: 5.5rem;
    resize: vertical;
    line-height: 1.6;
}

.k8s-field input:focus-visible,
.k8s-field select:focus-visible,
.k8s-field textarea:focus-visible {
    outline: none;
    border-color: var(--color-accent-cyan);
    box-shadow: 0 0 0 3px var(--color-accent-cyan-dim);
}

/* ── Cron next-run list + hash output (Faz 1-2) ──────────── */
.k8s-cron-runs {
    margin: 0;
    padding-inline-start: 1.4rem;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.9;
}

.k8s-hash-list {
    display: flex;
    flex-direction: column;
    gap: .7rem;
    margin: 1rem 0 0;
}

.k8s-hash-cell {
    padding: .75rem .85rem;
    border: 1px solid var(--color-border-subtle);
    border-radius: 10px;
    background: var(--color-bg-secondary);
}

.k8s-hash-cell dt {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.k8s-hash-cell dd {
    margin: .35rem 0 0;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.6;
    word-break: break-all;
}

.k8s-copy-btn {
    padding: .12rem .55rem;
    border: 1px solid var(--color-border-default);
    border-radius: 999px;
    background: var(--color-glass-surface);
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    cursor: pointer;
}

.k8s-copy-btn:hover,
.k8s-copy-btn:focus-visible {
    border-color: var(--color-accent-cyan);
    color: var(--color-accent-cyan);
    outline: none;
}

.k8s-hint {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    line-height: 1.5;
}

.k8s-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

/* ── Results ─────────────────────────────────────────────── */
.k8s-results {
    padding: 1.4rem 1.4rem 1.5rem;
    border: 1px solid var(--color-border-accent);
    border-radius: 14px;
    background: var(--color-glass-surface);
}

.k8s-results-title {
    margin: 0 0 1rem;
    color: var(--color-text-primary);
    font-size: var(--text-lg);
    font-weight: 700;
}

.k8s-empty {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.k8s-error {
    color: var(--color-error);
    font-size: var(--text-sm);
    font-weight: 600;
}

.k8s-result-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
    padding: 1.1rem;
    border-radius: 12px;
    background: var(--color-accent-cyan-dim);
}

.k8s-result-hero-num {
    color: var(--color-accent-cyan);
    font-family: var(--font-mono);
    font-size: clamp(2.6rem, 7vw, 3.6rem);
    font-weight: 700;
    line-height: 1;
}

.k8s-result-hero-label {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: .6px;
}

.k8s-result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .7rem;
    margin: 1rem 0 0;
}

.k8s-result-cell {
    padding: .75rem .85rem;
    border: 1px solid var(--color-border-subtle);
    border-radius: 10px;
    background: var(--color-bg-secondary);
}

.k8s-result-cell dt {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.k8s-result-cell dd {
    margin: .2rem 0 0;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 600;
}

.k8s-assumptions {
    margin: 1rem 0 0;
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    line-height: 1.6;
}

/* ── FAQ ─────────────────────────────────────────────────── */
.k8s-faq {
    margin-top: 2.4rem;
}

.k8s-faq-title {
    margin: 0 0 1rem;
    color: var(--color-text-primary);
    font-size: var(--text-xl);
    font-weight: 700;
}

.k8s-faq-item {
    border-bottom: 1px solid var(--color-border-subtle);
}

.k8s-faq-q {
    padding: .9rem 0;
    color: var(--color-text-primary);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.k8s-faq-q::-webkit-details-marker {
    display: none;
}

.k8s-faq-q::before {
    content: "+";
    display: inline-block;
    width: 1.1em;
    color: var(--color-accent-cyan);
    font-weight: 700;
}

.k8s-faq-item[open] .k8s-faq-q::before {
    content: "\2212"; /* minus */
}

.k8s-faq-a {
    margin: 0 0 1rem;
    padding-inline-start: 1.1em;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.7;
}

/* ── Real-cluster section (first-hand experience) ────────── */
.k8s-realcluster {
    margin-top: 2.4rem;
}

.k8s-realcluster-intro {
    max-width: 65ch;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.7;
}

.k8s-terminal {
    margin: 1rem 0 .6rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--color-border-default);
    border-radius: 12px;
    background: var(--color-bg-primary);
    overflow-x: auto;
    /* Terminal çıktısı RTL sayfalarda da soldan sağa kalmalı */
    direction: ltr;
    text-align: left;
}

.k8s-terminal code {
    display: block;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    line-height: 1.65;
    white-space: pre;
}

.k8s-realcluster-note {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    line-height: 1.6;
}

.k8s-related {
    margin-top: 2rem;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

/* ── JWT decoder (Faz 3) ─────────────────────────────────── */
.jwt-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Pretty-printed JSON / raw signature inside a hash-cell <dd>;
   preserve indentation and keep code left-to-right even on RTL pages. */
.k8s-json {
    white-space: pre-wrap;
    word-break: break-word;
    direction: ltr;
    text-align: left;
}

.jwt-status {
    display: inline-block;
    margin: 0 0 1rem;
    padding: .3rem .8rem;
    border-radius: 999px;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.jwt-status-ok {
    background: var(--color-accent-teal-dim);
    color: var(--color-accent-teal);
}

.jwt-status-warn {
    background: var(--color-accent-cyan-dim);
    color: var(--color-accent-cyan);
}

.jwt-status-bad {
    background: var(--color-error-dim, rgba(220, 80, 80, .16));
    color: var(--color-error);
}

.jwt-claims-title {
    margin: 1.6rem 0 .7rem;
    color: var(--color-text-primary);
    font-size: var(--text-base);
    font-weight: 700;
}

.jwt-claims-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.jwt-claims-table th,
.jwt-claims-table td {
    padding: .55rem .7rem;
    border: 1px solid var(--color-border-subtle);
    text-align: start;
    vertical-align: top;
}

.jwt-claims-table th {
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.jwt-claims-table td {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.jwt-claims-table code {
    color: var(--color-accent-cyan);
    font-family: var(--font-mono);
    font-weight: 600;
}

.jwt-claim-val {
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    word-break: break-word;
}

/* ── Radio group (Faz 4 — HTML encoder mode/scope) ───────── */
.k8s-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem 1.3rem;
    margin-top: .6rem;
}

.k8s-radio-group label {
    display: flex;
    align-items: center;
    gap: .45rem;
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
}

.k8s-radio-group input[type="radio"] {
    width: auto;
    margin: 0;
    padding: 0;
    accent-color: var(--color-accent-cyan);
}

/* ── HTML viewer preview frame (Faz 6) ───────────────────── */
.hv-frame {
    width: 100%;
    /* Min: küçük viewport'ta 416px (eski değer)
       Pref: viewport yüksekliğinin %60'ı (orta/büyük ekranda nefes alır)
       Max: 800px (4K ekranlarda taşmasın) */
    min-height: clamp(26rem, 60vh, 50rem);
    margin-top: .3rem;
    border: 1px solid var(--color-border-default);
    border-radius: 10px;
    /* İzole önizleme — kullanıcı HTML'i tarayıcı varsayılan beyaz zeminde */
    background: #ffffff;
    color-scheme: light;
}

/* HTML viewer sayfasına özel grid oranı: preview formdan ~%62 genişlikte olsun.
   Diğer Tools (kubernetes-resource-budget, cidr-subnet-calculator, vb.) varsayılan
   `1.05fr | 1fr` oranını kullanmaya devam eder. Mobilde (<860px) `.k8s-calc`
   media-query'si tek sütuna düşürdüğü için bu override etkisiz kalır. */
#html-viewer .k8s-calc {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
}

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .tools-card {
        transition: none;
    }
    .tools-card:hover,
    .tools-card:focus-visible {
        transform: none;
    }
}