/* ============================================================
   CASE STUDIES — shared design system
   Extends the visual language of the main site (snezik.cz)
   ============================================================ */

:root {
    --bg:           #03050A;
    --surface:      #080C17;
    --surface-2:    #0D1120;
    --amber:        #E8A020;
    --amber-bright: #F5B830;
    --amber-dim:    rgba(232, 160, 32, 0.10);
    --blue:         #3B82F6;
    --green:        #22C55E;
    --text:         #F1F5F9;
    --text-mid:     #94A3B8;
    --text-dim:     #475569;
    --border:       rgba(255, 255, 255, 0.07);
    --border-amber: rgba(232, 160, 32, 0.35);
    --ff-d: 'Syne', sans-serif;
    --ff-b: 'DM Sans', sans-serif;
    --ff-m: 'JetBrains Mono', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body {
    background: var(--bg); color: var(--text); font-family: var(--ff-b);
    overflow-x: hidden; line-height: 1.6; -webkit-font-smoothing: antialiased;
}

/* Custom cursor only where a real pointer exists */
@media (hover: hover) and (pointer: fine) {
    *, *::before, *::after { cursor: none; }
}
@media (hover: none), (pointer: coarse) {
    .c-dot, .c-ring, .c-glow { display: none !important; }
}

/* NOISE */
.noise {
    position: fixed; inset: 0; pointer-events: none; z-index: 9998; opacity: 0.032;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 200px 200px;
}

/* CURSOR */
.c-dot {
    position: fixed; width: 5px; height: 5px; background: var(--amber); border-radius: 50%;
    pointer-events: none; z-index: 10001; transform: translate(-50%,-50%); box-shadow: 0 0 8px var(--amber);
}
.c-ring {
    position: fixed; width: 34px; height: 34px; border: 1.5px solid rgba(232,160,32,.7);
    border-radius: 50%; pointer-events: none; z-index: 10000; transform: translate(-50%,-50%);
    transition: width .28s, height .28s, background-color .28s;
}
.c-ring.hov { width: 54px; height: 54px; background: rgba(232,160,32,.09); }
.c-glow {
    position: fixed; width: 600px; height: 600px; pointer-events: none; z-index: 1;
    background: radial-gradient(circle, rgba(232,160,32,.048) 0%, transparent 60%);
    transform: translate(-50%,-50%); mix-blend-mode: screen;
}

/* SCROLL REVEAL */
.rv { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1); }
.rv.in { opacity: 1; transform: none; }
.rv-d1 { transition-delay: .08s; }
.rv-d2 { transition-delay: .16s; }
.rv-d3 { transition-delay: .26s; }

/* NAV */
nav.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 200;
    display: flex; align-items: center; justify-content: space-between; padding: 20px 6%;
    background: rgba(3,5,10,.72); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--ff-m); font-size: 1.05rem; font-weight: 700; letter-spacing: 2px; text-decoration: none; color: var(--text); text-transform: uppercase; }
.nav-logo .dot { color: var(--amber); }
.nav-links { display: flex; gap: 34px; list-style: none; align-items: center; }
.nav-links a {
    font-family: var(--ff-m); font-size: .72rem; font-weight: 500; letter-spacing: 2px;
    text-transform: uppercase; color: var(--text-mid); text-decoration: none;
    position: relative; transition: color .25s;
}
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; right: 100%; height: 1px; background: var(--amber); transition: right .28s ease; }
.nav-links a:hover { color: var(--amber); }
.nav-links a:hover::after { right: 0; }
.nav-links a.current { color: var(--amber); }
.nav-cta { color: var(--amber) !important; border: 1px solid var(--amber) !important; padding: 7px 18px; transition: background .25s, color .25s !important; }
.nav-cta:hover { background: var(--amber) !important; color: var(--bg) !important; }
.nav-cta::after { display: none !important; }

/* READING PROGRESS */
.cs-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 201; background: transparent; pointer-events: none; }
.cs-progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--amber), var(--amber-bright)); box-shadow: 0 0 12px rgba(232,160,32,.6); transition: width .1s linear; }

/* ============================================================
   PAGE HERO (shared by index + articles)
   ============================================================ */
.cs-hero { position: relative; padding: 165px 6% 70px; overflow: hidden; border-bottom: 1px solid var(--border); }
.cs-hero::before { content: ''; position: absolute; top: -220px; right: -120px; width: 640px; height: 640px; background: radial-gradient(circle, rgba(232,160,32,.10) 0%, transparent 62%); pointer-events: none; }
.cs-hero::after  { content: ''; position: absolute; bottom: -200px; left: -140px; width: 520px; height: 520px; background: radial-gradient(circle, rgba(59,130,246,.075) 0%, transparent 62%); pointer-events: none; }
.cs-hero-inner { position: relative; z-index: 2; max-width: 1180px; margin: 0 auto; }
.cs-hero-bg-n { position: absolute; top: 96px; right: 3%; font-family: var(--ff-d); font-weight: 800; font-size: clamp(6rem,15vw,13rem); color: rgba(255,255,255,.024); line-height: 1; pointer-events: none; user-select: none; letter-spacing: -6px; z-index: 1; }

.cs-back {
    display: inline-flex; align-items: center; gap: 9px; font-family: var(--ff-m);
    font-size: .68rem; letter-spacing: 2.5px; text-transform: uppercase;
    color: var(--text-dim); text-decoration: none; margin-bottom: 30px; transition: color .25s, gap .25s;
}
.cs-back:hover { color: var(--amber); gap: 14px; }

.cs-eyebrow { font-family: var(--ff-m); font-size: .68rem; letter-spacing: 4px; text-transform: uppercase; color: var(--blue); display: block; margin-bottom: 16px; }
.cs-title { font-family: var(--ff-d); font-weight: 800; font-size: clamp(2.3rem,5.6vw,4.6rem); line-height: 1.02; letter-spacing: -1.5px; text-transform: uppercase; margin-bottom: 24px; max-width: 21ch; }
.cs-title .amber { color: var(--amber); }
.cs-title .stroke { color: transparent; -webkit-text-stroke: 1.7px var(--amber); }
.cs-deck { color: var(--text-mid); font-size: clamp(1rem,1.5vw,1.18rem); line-height: 1.78; max-width: 62ch; border-left: 2px solid var(--blue); padding-left: 20px; }

/* META STRIP */
.cs-meta { display: flex; flex-wrap: wrap; gap: 0; margin-top: 44px; border-top: 1px solid var(--border); }
.cs-meta-item { padding: 18px 34px 18px 0; margin-right: 34px; border-right: 1px solid var(--border); padding-right: 34px; }
.cs-meta-item:last-child { border-right: none; margin-right: 0; }
.cs-meta-k { display: block; font-family: var(--ff-m); font-size: .6rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 7px; }
.cs-meta-v { display: block; font-family: var(--ff-m); font-size: .82rem; color: var(--text); letter-spacing: .3px; }
.cs-meta-v .amber { color: var(--amber); }

/* ============================================================
   ARTICLE LAYOUT
   ============================================================ */
.cs-layout {
    display: grid; grid-template-columns: 236px minmax(0, 1fr);
    gap: 68px; max-width: 1180px; margin: 0 auto; padding: 72px 6% 40px;
    align-items: start;
}
@media (min-width: 1300px) { .cs-layout { padding-left: 0; padding-right: 0; } }

/* TOC */
.cs-toc { position: sticky; top: 118px; max-height: calc(100vh - 150px); overflow-y: auto; padding-right: 6px; min-width: 0; }
.cs-toc-ttl { font-family: var(--ff-m); font-size: .6rem; letter-spacing: 3px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.cs-toc ol { list-style: none; display: flex; flex-direction: column; gap: 2px; counter-reset: toc; }
.cs-toc a {
    display: block; font-family: var(--ff-m); font-size: .7rem; line-height: 1.55; letter-spacing: .3px;
    color: var(--text-dim); text-decoration: none; padding: 8px 0 8px 14px;
    border-left: 1px solid var(--border); transition: color .25s, border-color .25s;
}
.cs-toc a:hover { color: var(--text-mid); border-left-color: rgba(232,160,32,.35); }
.cs-toc a.active { color: var(--amber); border-left-color: var(--amber); }
.cs-toc::-webkit-scrollbar { width: 3px; }
.cs-toc::-webkit-scrollbar-thumb { background: rgba(255,255,255,.09); }

/* ARTICLE BODY */
.cs-article { max-width: 74ch; min-width: 0; font-size: 1.005rem; }
.cs-article > * + * { margin-top: 20px; }

.cs-article h2 {
    font-family: var(--ff-d); font-weight: 800; font-size: clamp(1.6rem,2.8vw,2.25rem);
    line-height: 1.14; text-transform: uppercase; letter-spacing: -.5px;
    margin-top: 78px; padding-top: 30px; border-top: 1px solid var(--border);
}
.cs-article h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.cs-article h2 .amber { color: var(--amber); }
.cs-article h2 .h2-num {
    display: block; font-family: var(--ff-m); font-size: .66rem; font-weight: 500;
    letter-spacing: 3.5px; color: var(--blue); text-transform: uppercase; margin-bottom: 13px;
}
.cs-article h3 {
    font-family: var(--ff-d); font-weight: 700; font-size: 1.22rem; line-height: 1.32;
    text-transform: uppercase; letter-spacing: .4px; color: var(--text); margin-top: 46px;
}
.cs-article h4 {
    font-family: var(--ff-m); font-weight: 700; font-size: .8rem; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--amber); margin-top: 34px;
}
.cs-article p { color: var(--text-mid); line-height: 1.86; }
.cs-article p strong, .cs-article li strong { color: var(--text); font-weight: 500; }
.cs-article em { color: var(--text); font-style: italic; }
.cs-article a { color: var(--amber); text-decoration: none; border-bottom: 1px solid rgba(232,160,32,.3); transition: border-color .25s; }
.cs-article a:hover { border-bottom-color: var(--amber); }
.cs-article code {
    font-family: var(--ff-m); font-size: .84em; color: var(--amber);
    background: rgba(232,160,32,.07); border: 1px solid rgba(232,160,32,.16); padding: 1px 6px;
}

/* Lists */
.cs-article ul { list-style: none; display: flex; flex-direction: column; gap: 13px; }
.cs-article ul li { display: flex; align-items: flex-start; gap: 13px; color: var(--text-mid); line-height: 1.78; }
.cs-article ul li::before { content: '\203A'; color: var(--amber); font-size: 1.35rem; line-height: 1.15; flex-shrink: 0; }

.cs-article ol.cs-steps { list-style: none; counter-reset: step; display: flex; flex-direction: column; gap: 16px; }
.cs-article ol.cs-steps > li {
    counter-increment: step; position: relative; padding-left: 52px;
    color: var(--text-mid); line-height: 1.8;
}
.cs-article ol.cs-steps > li::before {
    content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 1px;
    font-family: var(--ff-m); font-size: .72rem; font-weight: 700; letter-spacing: 1px; color: var(--amber);
    border: 1px solid rgba(232,160,32,.3); background: rgba(232,160,32,.05);
    width: 34px; height: 26px; display: flex; align-items: center; justify-content: center;
}

/* Lead paragraph */
.cs-lead { font-size: 1.1rem !important; color: var(--text) !important; line-height: 1.8 !important; }

/* CALLOUT */
.cs-callout {
    border: 1px solid var(--border); border-left: 2px solid var(--amber);
    background: linear-gradient(100deg, rgba(232,160,32,.05), rgba(232,160,32,0) 65%);
    padding: 26px 30px; margin-top: 34px !important;
}
.cs-callout .cs-callout-k { display: block; font-family: var(--ff-m); font-size: .62rem; letter-spacing: 3px; text-transform: uppercase; color: var(--amber); margin-bottom: 12px; }
.cs-callout p { color: var(--text); line-height: 1.8; }
.cs-callout.blue { border-left-color: var(--blue); background: linear-gradient(100deg, rgba(59,130,246,.06), rgba(59,130,246,0) 65%); }
.cs-callout.blue .cs-callout-k { color: var(--blue); }

/* KEY TAKEAWAY / verdict block */
.cs-verdict {
    border: 1px solid var(--border-amber); background: rgba(232,160,32,.035);
    padding: 34px 36px; margin-top: 44px !important; position: relative; overflow: hidden;
}
.cs-verdict::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(232,160,32,.6), transparent); }
.cs-verdict .cs-callout-k { display: block; font-family: var(--ff-m); font-size: .62rem; letter-spacing: 3.5px; text-transform: uppercase; color: var(--amber); margin-bottom: 16px; }
.cs-verdict p { font-family: var(--ff-d); font-weight: 700; font-size: 1.28rem; line-height: 1.55; color: var(--text); }
.cs-verdict p + p { margin-top: 14px; font-family: var(--ff-b); font-weight: 400; font-size: .98rem; color: var(--text-mid); line-height: 1.8; }

/* CARD GRID (use cases, risks, …) */
.cs-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 16px; margin-top: 30px !important; }
.cs-card {
    background: rgba(255,255,255,.018); border: 1px solid var(--border); padding: 28px 26px;
    position: relative; overflow: hidden; transition: border-color .32s, background .32s, transform .32s;
}
.cs-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(232,160,32,.45), transparent); opacity: 0; transition: opacity .32s; }
.cs-card:hover { border-color: rgba(232,160,32,.26); background: rgba(232,160,32,.022); transform: translateY(-3px); }
.cs-card:hover::before { opacity: 1; }
.cs-card .cs-card-num { font-family: var(--ff-m); font-size: .64rem; letter-spacing: 2px; color: var(--amber); display: block; margin-bottom: 14px; }
.cs-card .cs-card-ttl { font-family: var(--ff-d); font-size: 1.02rem; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; line-height: 1.3; margin: 0 0 12px; color: var(--text); }
.cs-card .cs-card-dsc { color: var(--text-mid); font-size: .87rem; line-height: 1.72; }
.cs-card .cs-card-dsc + .cs-card-dsc { margin-top: 10px; }
.cs-card dl { margin-top: 14px; display: flex; flex-direction: column; gap: 9px; }
.cs-card dt { font-family: var(--ff-m); font-size: .58rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); }
.cs-card dd { color: var(--text-mid); font-size: .85rem; line-height: 1.68; margin-top: 3px; }

/* Autonomy badge */
.cs-badge {
    display: inline-flex; align-items: center; gap: 7px; font-family: var(--ff-m);
    font-size: .58rem; letter-spacing: 1.6px; text-transform: uppercase;
    padding: 4px 10px; border: 1px solid rgba(255,255,255,.1); color: var(--text-dim); white-space: nowrap;
    background: rgba(255,255,255,.02); margin-bottom: 14px;
}
.cs-badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.cs-badge.low    { color: var(--green); border-color: rgba(34,197,94,.28); background: rgba(34,197,94,.05); }
.cs-badge.mid    { color: var(--blue);  border-color: rgba(59,130,246,.3);  background: rgba(59,130,246,.05); }
.cs-badge.high   { color: var(--amber); border-color: rgba(232,160,32,.32); background: rgba(232,160,32,.05); }

/* PILLS */
.cs-pills { display: flex; flex-wrap: wrap; gap: 7px; }
.cs-pill {
    font-family: var(--ff-m); font-size: .64rem; letter-spacing: .5px; padding: 5px 11px;
    border: 1px solid rgba(255,255,255,.09); color: var(--text-dim);
    background: rgba(255,255,255,.025); text-transform: uppercase; transition: border-color .3s, color .3s;
}
.cs-pill-a { border-color: rgba(232,160,32,.32); color: var(--amber); background: rgba(232,160,32,.05); }

/* TABLES */
.cs-table-wrap { overflow-x: auto; margin-top: 30px !important; border: 1px solid var(--border); }
.cs-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.cs-table caption { caption-side: bottom; font-family: var(--ff-m); font-size: .64rem; letter-spacing: 1px; color: var(--text-dim); text-align: left; padding: 12px 20px; border-top: 1px solid var(--border); }
.cs-table th {
    font-family: var(--ff-m); font-size: .62rem; font-weight: 500; letter-spacing: 2px; text-transform: uppercase;
    color: var(--amber); text-align: left; padding: 15px 20px; background: rgba(232,160,32,.045);
    border-bottom: 1px solid rgba(232,160,32,.2); white-space: nowrap;
}
.cs-table td { padding: 15px 20px; color: var(--text-mid); font-size: .88rem; line-height: 1.7; border-bottom: 1px solid var(--border); vertical-align: top; }
.cs-table tbody tr:last-child td { border-bottom: none; }
.cs-table tbody tr { transition: background .25s; }
.cs-table tbody tr:hover { background: rgba(255,255,255,.016); }
.cs-table td:first-child, .cs-table th:first-child { padding-left: 24px; }
.cs-table .t-key { color: var(--text); font-family: var(--ff-m); font-size: .78rem; letter-spacing: .3px; }
.cs-table .t-strong { color: var(--green); }
.cs-table .t-weak   { color: var(--text-dim); }
.cs-table .t-mid    { color: var(--blue); }

/* RACI cells */
.cs-table td.raci { text-align: center; font-family: var(--ff-m); font-size: .76rem; letter-spacing: 1px; }
.cs-table td.raci.ar { color: var(--amber); font-weight: 700; background: rgba(232,160,32,.06); }
.cs-table td.raci.c  { color: var(--text-mid); }
.cs-table td.raci.i  { color: var(--text-dim); }

/* DIAGRAMS — scroll rather than shrink below the legibility floor */
.cs-figure { margin-top: 38px !important; border: 1px solid var(--border); background: rgba(255,255,255,.014); padding: 34px 30px 26px; }
.cs-figure-scroll { overflow-x: auto; overscroll-behavior-x: contain; padding-bottom: 8px; }
.cs-figure-scroll::-webkit-scrollbar { height: 4px; }
.cs-figure-scroll::-webkit-scrollbar-track { background: rgba(255,255,255,.05); }
.cs-figure-scroll::-webkit-scrollbar-thumb { background: rgba(232,160,32,.38); }
.cs-figure svg { width: 100%; min-width: 600px; height: auto; display: block; }

/* Affordance for anything that scrolls sideways (added by JS only when it actually does) */
.cs-scroll-hint {
    display: block; font-family: var(--ff-m); font-size: .58rem; letter-spacing: 2px;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 10px;
}
.cs-scroll-hint[hidden] { display: none; }
.cs-article > .cs-scroll-hint { margin-top: 30px; }
.cs-article > .cs-scroll-hint + .cs-table-wrap { margin-top: 0 !important; }
.cs-figure figcaption { font-family: var(--ff-m); font-size: .64rem; letter-spacing: 1.2px; color: var(--text-dim); line-height: 1.7; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--border); }
.dg-box   { fill: var(--surface-2); stroke: rgba(255,255,255,.1); stroke-width: 1.2; }
.dg-box-a { fill: rgba(232,160,32,.07); stroke: rgba(232,160,32,.42); stroke-width: 1.2; }
.dg-box-b { fill: rgba(59,130,246,.07); stroke: rgba(59,130,246,.4); stroke-width: 1.2; }
.dg-t     { fill: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 9.5px; letter-spacing: .3px; }
.dg-t-s   { fill: var(--text-dim); font-family: 'JetBrains Mono', monospace; font-size: 7.6px; letter-spacing: .6px; text-transform: uppercase; }
.dg-t-a   { fill: var(--amber); font-family: 'JetBrains Mono', monospace; font-size: 9.5px; letter-spacing: .3px; }
.dg-t-b   { fill: var(--blue);  font-family: 'JetBrains Mono', monospace; font-size: 9.5px; letter-spacing: .3px; }
.dg-line  { fill: none; stroke: rgba(255,255,255,.14); stroke-width: 1.2; }
.dg-line-a { fill: none; stroke: rgba(232,160,32,.4); stroke-width: 1.2; stroke-dasharray: 4 4; }

/* CHECKLIST (in / out of scope) */
.cs-article ul.cs-checklist { gap: 11px; margin-top: 16px; }
.cs-article ul.cs-checklist li { color: var(--text-mid); font-size: .87rem; line-height: 1.66; gap: 11px; }
.cs-article ul.cs-checklist li::before { content: '\2713'; color: var(--green); font-size: .95rem; line-height: 1.5; }
.cs-article ul.cs-checklist.deferred li::before { content: '\2014'; color: var(--text-dim); font-size: .82rem; }

/* SECTION SEPARATOR NOTE */
.cs-article p.cs-note { font-family: var(--ff-m); font-size: .74rem; color: var(--text-dim); line-height: 1.8; letter-spacing: .2px; }

/* ============================================================
   PAGER (prev / next)
   ============================================================ */
.cs-pager { max-width: 1180px; margin: 40px auto 0; padding: 0 6% 0; }
@media (min-width: 1300px) { .cs-pager { padding-left: 0; padding-right: 0; } }
.cs-pager-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; border-top: 1px solid var(--border); padding-top: 40px; }
.cs-pager-link {
    display: block; text-decoration: none; border: 1px solid var(--border);
    padding: 26px 28px; background: rgba(255,255,255,.016);
    transition: border-color .3s, background .3s, transform .3s;
}
.cs-pager-link:hover { border-color: rgba(232,160,32,.28); background: rgba(232,160,32,.022); transform: translateY(-3px); }
.cs-pager-link.next { text-align: right; }
.cs-pager-k { display: block; font-family: var(--ff-m); font-size: .6rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 11px; }
.cs-pager-t { display: block; font-family: var(--ff-d); font-weight: 700; font-size: 1.02rem; text-transform: uppercase; letter-spacing: .4px; color: var(--text); line-height: 1.34; }
.cs-pager-link:hover .cs-pager-t { color: var(--amber); }
.cs-pager-link.disabled { opacity: .32; pointer-events: none; }

/* ============================================================
   CTA + FOOTER
   ============================================================ */
.cs-cta { padding: 120px 6%; text-align: center; position: relative; overflow: hidden; margin-top: 46px; }
.cs-cta-glow { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 820px; height: 400px; background: radial-gradient(ellipse, rgba(232,160,32,.07) 0%, transparent 60%); pointer-events: none; }
.cs-cta-lbl { position: relative; font-family: var(--ff-m); font-size: .68rem; letter-spacing: 4px; text-transform: uppercase; color: var(--amber); margin-bottom: 20px; display: block; }
.cs-cta-ttl { position: relative; font-family: var(--ff-d); font-weight: 800; font-size: clamp(2rem,4.5vw,3.6rem); text-transform: uppercase; line-height: 1.06; letter-spacing: -1px; margin-bottom: 18px; }
.cs-cta-ttl .amber { color: var(--amber); }
.cs-cta-sub { position: relative; color: var(--text-mid); font-size: 1rem; margin-bottom: 40px; max-width: 56ch; margin-left: auto; margin-right: auto; }

.btn-primary { display: inline-flex; align-items: center; gap: 10px; padding: 15px 38px; background: var(--amber); color: var(--bg); font-family: var(--ff-m); font-size: .78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; text-decoration: none; clip-path: polygon(8px 0%,100% 0%,calc(100% - 8px) 100%,0% 100%); transition: background .25s, transform .25s, box-shadow .25s; position: relative; }
.btn-primary:hover { background: var(--amber-bright); transform: translateY(-3px); box-shadow: 0 14px 40px -8px rgba(232,160,32,.48); }
.btn-ghost { display: inline-flex; align-items: center; gap: 10px; padding: 14px 38px; background: transparent; color: var(--text); font-family: var(--ff-m); font-size: .78rem; font-weight: 500; letter-spacing: 2px; text-transform: uppercase; text-decoration: none; border: 1px solid var(--border); transition: border-color .25s, color .25s, transform .25s; }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-3px); }

footer { background: var(--surface); border-top: 1px solid var(--border); padding: 52px 6%; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 22px; max-width: 1180px; margin: 0 auto; }
.f-logo { font-family: var(--ff-m); font-size: .95rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); text-decoration: none; }
.f-logo span { color: var(--amber); }
.f-links { display: flex; gap: 26px; flex-wrap: wrap; }
.f-links a { font-family: var(--ff-m); font-size: .7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); text-decoration: none; transition: color .25s; }
.f-links a:hover { color: var(--amber); }
.f-copy { font-family: var(--ff-m); font-size: .6rem; letter-spacing: 2px; color: rgba(255,255,255,.12); text-transform: uppercase; }

/* ============================================================
   INDEX PAGE — case study listing
   ============================================================ */
.cs-list { max-width: 1180px; margin: 0 auto; padding: 84px 6% 20px; }
@media (min-width: 1300px) { .cs-list { padding-left: 0; padding-right: 0; } }
.cs-list-grid { display: flex; flex-direction: column; gap: 20px; }

.cs-entry {
    display: grid; grid-template-columns: 92px minmax(0,1fr) 232px; gap: 34px; align-items: start;
    text-decoration: none; border: 1px solid var(--border); background: rgba(255,255,255,.016);
    padding: 38px 40px; position: relative; overflow: hidden;
    transition: border-color .34s, background .34s, transform .34s, box-shadow .34s;
}
.cs-entry::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(232,160,32,.5), transparent); opacity: 0; transition: opacity .34s; }
.cs-entry:hover { border-color: rgba(232,160,32,.28); background: rgba(232,160,32,.022); transform: translateY(-4px); box-shadow: 0 24px 64px -24px rgba(0,0,0,.8); }
.cs-entry:hover::before { opacity: 1; }
.cs-entry-num { font-family: var(--ff-d); font-weight: 800; font-size: 2.6rem; line-height: 1; color: rgba(255,255,255,.07); transition: color .34s; }
.cs-entry:hover .cs-entry-num { color: rgba(232,160,32,.42); }
.cs-entry-ctx { font-family: var(--ff-m); font-size: .62rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--blue); display: block; margin-bottom: 12px; }
.cs-entry-ttl { font-family: var(--ff-d); font-weight: 800; font-size: clamp(1.35rem,2.4vw,1.85rem); line-height: 1.15; text-transform: uppercase; letter-spacing: -.3px; color: var(--text); margin-bottom: 14px; transition: color .3s; }
.cs-entry:hover .cs-entry-ttl { color: var(--amber); }
.cs-entry-dsc { color: var(--text-mid); font-size: .93rem; line-height: 1.78; margin-bottom: 20px; max-width: 62ch; }
.cs-entry-side { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.cs-entry-fact { width: 100%; }
.cs-entry-fact dt { font-family: var(--ff-m); font-size: .58rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 5px; }
.cs-entry-fact dd { font-family: var(--ff-m); font-size: .76rem; color: var(--text-mid); line-height: 1.55; }
.cs-entry-read { display: inline-flex; align-items: center; gap: 9px; font-family: var(--ff-m); font-size: .68rem; letter-spacing: 2px; text-transform: uppercase; color: var(--amber); margin-top: auto; transition: gap .28s; }
.cs-entry:hover .cs-entry-read { gap: 15px; }

.cs-more {
    border: 1px dashed rgba(255,255,255,.09); background: transparent; padding: 34px 40px;
    display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.cs-more-k { font-family: var(--ff-m); font-size: .68rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--text-dim); }
.cs-more-t { color: var(--text-dim); font-size: .9rem; line-height: 1.7; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1060px) {
    .cs-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
    .cs-toc {
        position: static; max-height: none; margin-bottom: 52px; padding: 24px 26px;
        border: 1px solid var(--border); background: rgba(255,255,255,.014);
    }
    .cs-toc ol { flex-direction: row; flex-wrap: wrap; gap: 6px; }
    .cs-toc a { border-left: none; border: 1px solid var(--border); padding: 7px 12px; }
    .cs-toc a.active { border-color: var(--border-amber); }
    .cs-entry { grid-template-columns: 62px minmax(0,1fr); }
    .cs-entry-side { grid-column: 2; flex-direction: row; flex-wrap: wrap; gap: 26px; }
    .cs-entry-fact { width: auto; }
}
@media (max-width: 780px) {
    .nav-links { gap: 18px; }
    .nav-links li.hide-sm { display: none; }
    .cs-hero { padding: 140px 6% 56px; }
    .cs-meta-item { border-right: none; padding-right: 0; margin-right: 0; width: 50%; padding-top: 14px; padding-bottom: 14px; }
    .cs-article { font-size: .96rem; }
    .cs-pager-inner { grid-template-columns: 1fr; }
    .cs-pager-link.next { text-align: left; }
    .cs-entry { grid-template-columns: 1fr; padding: 30px 26px; gap: 0; }
    .cs-entry-num { font-size: 1.6rem; margin-bottom: 16px; }
    .cs-entry-side { grid-column: 1; }
    .cs-verdict { padding: 26px 24px; }
    .cs-verdict p { font-size: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .rv { opacity: 1; transform: none; transition: none; }
    * { animation-duration: .001s !important; transition-duration: .001s !important; }
}

/* PRINT */
@media print {
    .noise, .c-dot, .c-ring, .c-glow, nav.site-nav, .cs-progress, .cs-toc, .cs-pager, .cs-cta, footer { display: none !important; }
    body { background: #fff; color: #111; }
    .cs-layout { display: block; padding: 0; }
    .cs-article { max-width: none; }
    .cs-article p, .cs-article ul li, .cs-table td { color: #333; }
    .cs-title, .cs-article h2, .cs-article h3 { color: #000; }
    .cs-hero { padding: 0 0 24px; }
}