/* The Grind — herkese açık içerik sayfaları (araçlar, hakkımızda) için ortak stil.
   Uygulamanın kendisi (index.html) bu dosyayı KULLANMAZ. */
* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Montserrat', system-ui, -apple-system, 'Segoe UI', sans-serif; }
html { -webkit-text-size-adjust: 100%; }
body { background: #000; color: #f3f3f3; line-height: 1.75; -webkit-font-smoothing: antialiased; }
.wrap { max-width: 840px; margin: 0 auto; padding: 28px 20px 90px; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-bottom: 22px; border-bottom: 1px solid #222; margin-bottom: 26px; flex-wrap: wrap; }
.brand { display: flex; flex-direction: column; line-height: 1; text-decoration: none; }
.brand-the { font-size: 0.72rem; font-weight: 600; color: #fff; letter-spacing: 4px; }
.brand-grind { font-size: 1.5rem; font-weight: 900; color: #fbbf24; letter-spacing: 1px; text-transform: uppercase; }
.back-link { color: #38bdf8; text-decoration: none; font-size: 0.8rem; font-weight: 700; border: 1px solid rgba(56,189,248,0.35); padding: 8px 14px; border-radius: 9px; }
.back-link:hover { background: rgba(56,189,248,0.1); }

.breadcrumb { font-size: 0.75rem; color: #777; margin-bottom: 14px; }
.breadcrumb a { color: #999; text-decoration: none; }
.breadcrumb a:hover { color: #FDD835; }

h1 { font-size: 1.7rem; font-weight: 900; color: #fbbf24; letter-spacing: 0.3px; line-height: 1.3; margin-bottom: 14px; }
.intro { color: #b5b5b5; font-size: 0.95rem; margin-bottom: 22px; }
h2 { font-size: 1.12rem; font-weight: 800; color: #FDD835; margin: 38px 0 12px; padding-left: 12px; border-left: 3px solid #FDD835; line-height: 1.4; }
h3 { font-size: 0.97rem; font-weight: 800; color: #fff; margin: 22px 0 8px; }
p { color: #c9c9c9; font-size: 0.93rem; margin-bottom: 12px; }
ul, ol { margin: 0 0 14px 22px; }
li { color: #c9c9c9; font-size: 0.93rem; margin-bottom: 7px; }
strong { color: #f3f3f3; }
a { color: #38bdf8; }
small, .muted { color: #8a8a8a; font-size: 0.8rem; }

/* Hesaplayıcı kartı */
.calc { background: linear-gradient(160deg, #141414, #0b0b0b); border: 1px solid #2a2a2a; border-radius: 18px; padding: 22px 20px; margin: 8px 0 10px; }
.calc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 12px; }
.calc-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 0.7rem; color: #999; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.field input, .field select {
    width: 100%; background: #1c1c1c; border: 1px solid #333; padding: 12px; border-radius: 10px;
    color: #fff; font-size: 1rem; outline: none; font-family: inherit; -webkit-appearance: none; appearance: none;
}
.field select { background-image: linear-gradient(45deg, transparent 50%, #888 50%), linear-gradient(135deg, #888 50%, transparent 50%); background-position: calc(100% - 18px) 52%, calc(100% - 13px) 52%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.field input:focus, .field select:focus { border-color: #FDD835; }
.field .hint { display: block; font-size: 0.72rem; color: #6f6f6f; margin-top: 5px; line-height: 1.5; }
.seg { display: flex; gap: 6px; background: #1c1c1c; border: 1px solid #333; border-radius: 10px; padding: 4px; }
.seg label { flex: 1; margin: 0; position: relative; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; text-align: center; padding: 8px 6px; border-radius: 7px; font-size: 0.85rem; font-weight: 700; color: #999; cursor: pointer; text-transform: none; letter-spacing: 0; }
.seg input:checked + span { background: #2c2c2c; color: #FDD835; }
.seg input:focus-visible + span { outline: 2px solid #FDD835; }
.btn { display: inline-block; width: 100%; background: #FDD835; color: #111; border: none; padding: 14px; border-radius: 12px; font-weight: 800; font-size: 1rem; cursor: pointer; margin-top: 16px; font-family: inherit; text-align: center; text-decoration: none; }
.btn:hover { background: #ffe352; }
.error { color: #f87171; font-size: 0.85rem; margin-top: 10px; display: none; }

/* Sonuç */
.result { display: none; margin-top: 20px; border-top: 1px solid #262626; padding-top: 20px; }
.result.show { display: block; }
.result-main { text-align: center; margin-bottom: 16px; }
.result-label { font-size: 0.72rem; color: #999; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 700; }
.result-value { font-size: 2.3rem; font-weight: 900; color: #FDD835; line-height: 1.15; margin: 4px 0; }
.result-sub { font-size: 0.85rem; color: #aaa; margin: 0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 14px 0; }
.stat { background: #161616; border: 1px solid #262626; border-radius: 12px; padding: 12px; text-align: center; }
.stat b { display: block; font-size: 1.15rem; font-weight: 800; color: #fff; }
.stat span { font-size: 0.7rem; color: #8a8a8a; text-transform: uppercase; letter-spacing: 0.5px; }
.stat.active { border-color: rgba(253, 216, 53, 0.55); background: rgba(253, 216, 53, 0.06); }
.stat.active b { color: #FDD835; }
.note { background: rgba(56, 189, 248, 0.07); border: 1px solid rgba(56, 189, 248, 0.25); border-radius: 12px; padding: 12px 14px; font-size: 0.83rem; color: #bfdbee; margin-top: 12px; line-height: 1.65; }
.warn { background: rgba(248, 113, 113, 0.07); border: 1px solid rgba(248, 113, 113, 0.3); border-radius: 12px; padding: 12px 14px; font-size: 0.83rem; color: #fecaca; margin-top: 12px; line-height: 1.65; }

/* Tablo */
.table-scroll { overflow-x: auto; margin: 12px 0 16px; border: 1px solid #242424; border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 0.86rem; min-width: 420px; }
th { background: #151515; color: #FDD835; text-align: left; padding: 10px 12px; font-weight: 800; font-size: 0.78rem; }
td { padding: 10px 12px; border-top: 1px solid #222; color: #c9c9c9; }
tr.hl td { background: rgba(253, 216, 53, 0.07); color: #fff; }

.formula { background: #0f0f0f; border: 1px solid #262626; border-radius: 12px; padding: 14px 16px; font-family: ui-monospace, 'SFMono-Regular', Consolas, monospace; font-size: 0.84rem; color: #e5e5e5; overflow-x: auto; white-space: pre; margin: 10px 0 14px; line-height: 1.7; }

/* SSS */
details { background: #101010; border: 1px solid #242424; border-radius: 12px; padding: 0 16px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 14px 0; font-weight: 700; color: #f3f3f3; font-size: 0.92rem; list-style: none; position: relative; padding-right: 24px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 0; top: 12px; color: #FDD835; font-size: 1.2rem; font-weight: 700; }
details[open] summary::after { content: '−'; }
details p { font-size: 0.88rem; }

/* Kart listeleri */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; margin: 16px 0; }
.card { display: block; background: #101010; border: 1px solid #242424; border-radius: 14px; padding: 16px 18px; text-decoration: none; transition: border-color 0.2s; }
.card:hover { border-color: rgba(253, 216, 53, 0.45); }
.card .ic { font-size: 1.3rem; }
.card h3 { margin: 6px 0 4px; font-size: 0.95rem; }
.card p { font-size: 0.84rem; color: #9a9a9a; margin: 0; }

.cta { background: linear-gradient(150deg, #191919, #0e0e0e); border: 1px solid #2b2b2b; border-radius: 18px; padding: 26px 22px; text-align: center; margin: 40px 0 10px; }
.cta h2 { border: none; padding: 0; margin: 0 0 8px; color: #fff; font-size: 1.2rem; }
.cta p { color: #9a9a9a; font-size: 0.88rem; }
.cta .btn { width: auto; padding: 13px 28px; margin-top: 6px; }

.disclaimer { font-size: 0.78rem; color: #7a7a7a; border-top: 1px solid #1e1e1e; margin-top: 34px; padding-top: 16px; line-height: 1.7; }
.updated { font-size: 0.75rem; color: #666; margin-bottom: 18px; }

footer { margin-top: 44px; padding-top: 22px; border-top: 1px solid #222; }
.foot-links { display: flex; gap: 14px 18px; flex-wrap: wrap; margin-bottom: 12px; }
.foot-links a { color: #999; text-decoration: none; font-size: 0.8rem; font-weight: 600; }
.foot-links a:hover { color: #FDD835; }
.copyright { color: #555; font-size: 0.75rem; }

@media (max-width: 480px) {
    h1 { font-size: 1.45rem; }
    .calc { padding: 18px 14px; }
    .calc-grid { gap: 10px; }
    .result-value { font-size: 2rem; }
}