/* ============================================================
   Nasıl Kullanılır Sayfası — public/css/pages/how-to-use.css
   ============================================================ */

/* ── Sayfa Genel Layout ───────────────────────────────────── */
.htu-body {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    align-items: start;
    padding-top: 2rem;
    padding-bottom: 4rem;
}

@media (max-width: 900px) {
    .htu-body { grid-template-columns: 1fr; }
    .htu-toc  { display: none; }
}

/* ── Hero ─────────────────────────────────────────────────── */
.htu-hero {
    padding: 3rem 0 2rem;
    background: linear-gradient(160deg, var(--color-bg-secondary) 0%, var(--color-bg) 65%);
    border-bottom: 1px solid var(--color-border);
}

.htu-hero__inner { max-width: 700px; }

.htu-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-alpha);
    border-radius: 999px;
    padding: .25rem .8rem;
    margin-bottom: 1rem;
}

.htu-hero__title {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 900;
    line-height: 1.15;
    color: var(--color-text-primary);
    margin: 0 0 .75rem;
}

.htu-hero__title-accent { color: var(--color-primary); }

.htu-hero__lead {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin: 0 0 1.25rem;
    max-width: 55ch;
}

/* Meta şipleri */
.htu-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-bottom: 1.5rem;
}

.htu-meta-chip {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .8rem;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: .3rem .75rem;
}

.htu-meta-chip strong { color: var(--color-text-primary); }

/* Hero atlama butonları */
.htu-hero__jumps {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

/* ── Sticky TOC ───────────────────────────────────────────── */
.htu-toc {
    position: sticky;
    top: 5.5rem;
    max-height: calc(100vh - 7rem);
    overflow-y: auto;
    scrollbar-width: thin;
    align-self: start;
}

.htu-toc__inner {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.htu-toc__heading {
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 .25rem;
}

.htu-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: .15rem;
}

.htu-toc__link {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .84rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: .35rem .6rem;
    border-radius: 7px;
    transition: background .15s, color .15s;
    position: relative;
}

.htu-toc__link:hover {
    background: var(--color-bg);
    color: var(--color-text-primary);
}

.htu-toc__link.is-active {
    background: var(--color-primary-alpha);
    color: var(--color-primary);
    font-weight: 600;
}

.htu-toc__link .icon { flex-shrink: 0; opacity: .7; }

.htu-toc__link span:not(.htu-toc__eta) { flex: 1; }

.htu-toc__eta {
    font-size: .7rem;
    color: var(--color-muted);
    white-space: nowrap;
}

/* İlerleme çubuğu */
.htu-toc__progress {
    height: 3px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
    margin-top: .25rem;
}

.htu-toc__progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width .2s linear;
}

.htu-toc__progress-label {
    font-size: .72rem;
    color: var(--color-muted);
    margin: .25rem 0 0;
    text-align: right;
}

.htu-toc__help-link {
    display: flex;
    align-items: center;
    gap: .35rem;
    font-size: .8rem;
    color: var(--color-muted);
    text-decoration: none;
    margin-top: .5rem;
    padding: .3rem .4rem;
    border-radius: 6px;
    transition: color .15s;
}

.htu-toc__help-link:hover { color: var(--color-primary); }

/* ── Bölümler ─────────────────────────────────────────────── */
.htu-section {
    scroll-margin-top: 5rem;
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.htu-section:last-of-type { border-bottom: none; }

.htu-section--quickstart {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.htu-section__header {
    display: flex;
    align-items: flex-start;
    gap: .85rem;
    margin-bottom: 1.25rem;
}

.htu-section__icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: var(--color-primary-alpha);
    color: var(--color-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: .1rem;
}

.htu-section__icon--accent {
    background: var(--color-primary);
    color: #fff;
}

.htu-section__title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-text-primary);
    margin: 0 0 .25rem;
    line-height: 1.2;
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
}

.htu-section__eta {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .78rem;
    color: var(--color-muted);
    font-weight: 400;
}

.htu-section__sub {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 1.5rem 0 .75rem;
}

.htu-content > .htu-section p,
.htu-section p {
    color: var(--color-text-secondary);
    font-size: .93rem;
    line-height: 1.7;
    margin: 0 0 1rem;
}

/* ── Hızlı Başlangıç Adımları ────────────────────────────── */
.htu-qs__badge {
    font-size: .72rem;
    font-weight: 700;
    background: var(--color-primary);
    color: #fff;
    border-radius: 999px;
    padding: .2rem .6rem;
    vertical-align: middle;
}

.htu-qs__lead {
    max-width: 60ch;
    margin-bottom: 1.5rem !important;
}

.htu-qs__steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.htu-qs__step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.htu-qs__step-num {
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .88rem;
    font-weight: 800;
    margin-top: .15rem;
}

.htu-qs__step-body { flex: 1; min-width: 0; }

.htu-qs__step-title {
    font-size: .88rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 .5rem;
}

/* ── Kod Blokları ─────────────────────────────────────────── */
.code-block {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    margin: .75rem 0 1rem;
}

.code-block__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .5rem .9rem;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.code-block__lang {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--color-muted);
    font-family: monospace;
}

.code-block__copy {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .75rem;
    cursor: pointer;
    transition: color .15s;
}

.code-block__copy.is-copied { color: var(--color-primary); }

.code-block pre {
    margin: 0;
    padding: 1rem 1.1rem;
    overflow-x: auto;
    font-size: .82rem;
    line-height: 1.65;
    font-family: 'JetBrains Mono', Consolas, 'Courier New', monospace;
    color: var(--color-text-primary);
    background: transparent;
    tab-size: 4;
}

.code-block code {
    background: transparent;
    color: inherit;
    font-size: inherit;
    font-family: inherit;
    padding: 0;
    border-radius: 0;
}

.code-block__output {
    display: flex;
    flex-direction: column;
    gap: .25rem;
    padding: .65rem 1.1rem;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.code-block__output-label {
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.code-block__output samp {
    font-size: .8rem;
    font-family: 'JetBrains Mono', Consolas, monospace;
    color: var(--color-primary);
    white-space: pre-wrap;
    word-break: break-all;
}

/* ── Dosya Ağacı ──────────────────────────────────────────── */
.file-tree {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    margin: .75rem 0 1rem;
}

.file-tree pre {
    margin: 0;
    padding: 1rem;
    font-size: .8rem;
    font-family: 'JetBrains Mono', Consolas, monospace;
    color: var(--color-text-primary);
    overflow-x: auto;
    line-height: 1.6;
    background: transparent;
}

/* ── İpucu Kutuları ───────────────────────────────────────── */
.htu-tip {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    padding: .85rem 1rem;
    background: var(--color-primary-alpha);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 8px 8px 0;
    margin: 1rem 0;
}

.htu-tip p { margin: 0 !important; font-size: .87rem !important; }
.htu-tip .icon { color: var(--color-primary); flex-shrink: 0; margin-top: .1rem; }

.htu-tip--warn {
    background: rgba(245, 158, 11, .08);
    border-color: #f59e0b;
}

.htu-tip--warn .icon { color: #f59e0b; }

/* ── Kontrol Listesi ──────────────────────────────────────── */
.htu-check-list {
    list-style: none;
    padding: 0;
    margin: .75rem 0 1rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.htu-check-list li {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .9rem;
    color: var(--color-text-secondary);
}

.htu-check-list li .icon { color: var(--color-primary); flex-shrink: 0; }

/* ── Güvenlik Katmanları ─────────────────────────────────── */
.htu-security-layers {
    display: flex;
    flex-direction: column;
    gap: .65rem;
    margin: .75rem 0;
}

.htu-security-layer {
    display: flex;
    gap: .85rem;
    align-items: flex-start;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: .75rem 1rem;
}

.htu-security-layer__num {
    width: 26px;
    height: 26px;
    min-width: 26px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 800;
    margin-top: .1rem;
}

.htu-security-layer strong {
    display: block;
    font-size: .88rem;
    color: var(--color-text-primary);
    margin-bottom: .15rem;
}

.htu-security-layer p {
    font-size: .82rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin: 0 !important;
}

/* ── Geri Bildirim ────────────────────────────────────────── */
.htu-feedback {
    display: flex;
    align-items: center;
    gap: .85rem;
    flex-wrap: wrap;
    padding: .85rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-bg-secondary);
    margin-top: 1.75rem;
}

.htu-feedback__label {
    font-size: .85rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.htu-feedback__btns { display: flex; gap: .5rem; }

.htu-feedback__btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .82rem;
    font-weight: 600;
    padding: .35rem .85rem;
    border-radius: 7px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}

.htu-feedback__btn:hover { color: var(--color-text-primary); border-color: var(--color-text-secondary); }

.htu-feedback__btn--ok.is-selected,
.htu-feedback__btn--ok:focus-visible {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.htu-feedback__btn--fail.is-selected,
.htu-feedback__btn--fail:focus-visible {
    background: #ef4444;
    color: #fff;
    border-color: #ef4444;
}

.htu-feedback__btn:disabled { opacity: .5; cursor: default; }

.htu-feedback__thanks {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .82rem;
    color: var(--color-primary);
    font-weight: 600;
}

.htu-feedback__help-link {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .82rem;
    color: var(--color-muted);
    text-decoration: none;
    transition: color .15s;
}

.htu-feedback__help-link:hover { color: var(--color-primary); }

/* ── Alt CTA ─────────────────────────────────────────────── */
.htu-bottom-cta {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--color-primary-alpha) 0%, var(--color-bg-secondary) 100%);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    margin-top: 2.5rem;
}

.htu-bottom-cta h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-primary);
    margin: 0 0 .6rem;
}

.htu-bottom-cta p {
    color: var(--color-text-secondary);
    margin: 0 0 1.5rem;
    font-size: .93rem;
}

.htu-bottom-cta__btns {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: .65rem;
}

/* ── Print ────────────────────────────────────────────────── */
@media print {
    .htu-toc,
    .htu-hero__jumps,
    .htu-feedback,
    .htu-bottom-cta { display: none !important; }

    .htu-body { display: block; }

    .htu-section {
        page-break-inside: avoid;
        border-bottom: 1px solid #ccc;
    }

    .code-block {
        border: 1px solid #ccc;
        background: #f9f9f9;
    }

    .code-block__copy { display: none; }

    a[href]::after {
        content: ' (' attr(href) ')';
        font-size: .75em;
        color: #555;
    }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 640px) {
    .htu-hero { padding: 2rem 0 1.5rem; }
    .htu-section--quickstart { padding: 1.25rem; }
    .htu-qs__step { gap: .6rem; }
    .htu-qs__step-num { width: 26px; height: 26px; min-width: 26px; font-size: .8rem; }
    .htu-section { padding: 1.75rem 0; }
}