/* ==========================================================================
   Case Study — Shared styles
   White Paper Production
   ========================================================================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --white:#FAFAF8;
  --cream:#F4F1EC;
  --stone:#D6CFC6;
  --charcoal:#2A2A28;
  --ink:#1A1A18;
  --gold:#B8956A;
  --gold-lt:#D4B08A;
  --grey:#7A7570;
  --ff-display:'Cormorant Garamond',Georgia,serif;
  --ff-body:'DM Sans',system-ui,sans-serif;
  --max:1080px;
  --ease:cubic-bezier(.25,.46,.45,.94);
}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--ink);color:var(--white);font-family:var(--ff-body);font-weight:300;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}

.cs-container{max-width:var(--max);margin:0 auto;padding:0 32px}
.cs-narrow{max-width:780px}
@media(max-width:768px){.cs-container{padding:0 20px}}

/* NAV */
.cs-nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(26,26,24,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(184,149,106,.1)}
.cs-nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:var(--max);margin:0 auto;padding:18px 32px}
.cs-nav-logo{font-family:var(--ff-display);font-size:22px;letter-spacing:.05em;font-weight:500;color:var(--white)}
.cs-nav-logo span{color:var(--gold);font-style:italic}
.cs-nav-cta{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--white);padding:9px 22px;border:1px solid var(--gold);border-radius:2px;transition:all .25s}
.cs-nav-cta:hover{background:var(--gold);color:var(--ink)}
@media(max-width:600px){.cs-nav-cta{font-size:10px;padding:8px 14px}.cs-nav-inner{padding:14px 20px}}

/* HERO */
.cs-hero{position:relative;min-height:75vh;padding:140px 0 80px;display:flex;align-items:center;background:linear-gradient(180deg,#1A1A18 0%,#222220 100%);overflow:hidden}
.cs-hero::before{content:"";position:absolute;top:-30%;right:-15%;width:600px;height:600px;background:radial-gradient(circle,rgba(184,149,106,.08) 0%,transparent 70%);pointer-events:none}
.cs-hero-content{position:relative;max-width:780px}
.cs-breadcrumb{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--grey);margin-bottom:28px}
.cs-breadcrumb a{color:var(--gold);transition:opacity .2s}
.cs-breadcrumb a:hover{opacity:.7}
.cs-breadcrumb span{margin:0 8px;opacity:.5}
.cs-eyebrow{display:inline-block;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin-bottom:24px;padding:6px 14px;border:1px solid rgba(184,149,106,.4);border-radius:2px}
.cs-hero-title{font-family:var(--ff-display);font-size:clamp(38px,5.2vw,64px);line-height:1.1;font-weight:400;letter-spacing:-.01em;margin-bottom:28px}
.cs-hero-title em{font-style:italic;color:var(--gold-lt)}
.cs-hero-sub{font-size:18px;color:var(--stone);max-width:600px;margin-bottom:36px;line-height:1.7}
.cs-hero-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:36px;padding-top:28px;border-top:1px solid rgba(184,149,106,.18)}
.cs-meta-item{font-size:13px;color:var(--grey);letter-spacing:.04em;min-width:140px}
.cs-meta-item strong{display:block;color:var(--white);font-weight:500;font-size:14px;margin-top:3px;font-family:var(--ff-body)}

/* STATS */
.cs-stats{padding:60px 0;background:#15140F;border-top:1px solid rgba(184,149,106,.12);border-bottom:1px solid rgba(184,149,106,.12)}
.cs-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
@media(max-width:700px){.cs-stats-grid{grid-template-columns:repeat(2,1fr);gap:36px 16px}}
.cs-stat-num{font-family:var(--ff-display);font-size:clamp(32px,4vw,48px);color:var(--gold);font-weight:400;line-height:1;margin-bottom:8px;letter-spacing:-.01em}
.cs-stat-lbl{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--grey)}

/* SECTIONS */
.cs-sec{padding:90px 0}
.cs-no-top{padding-top:0}
.cs-sec h2{font-family:var(--ff-display);font-size:clamp(30px,3.6vw,44px);line-height:1.2;font-weight:400;margin-bottom:24px;letter-spacing:-.01em;color:var(--white)}
.cs-sec h2 em{font-style:italic;color:var(--gold-lt)}
.cs-sec h3{font-family:var(--ff-display);font-size:24px;font-weight:500;margin:36px 0 14px;color:var(--white)}
.cs-sec p{font-size:16px;color:var(--stone);margin-bottom:18px;line-height:1.8}
.cs-arrow-list{list-style:none;padding:0;margin:18px 0}
.cs-arrow-list li{position:relative;padding:9px 0 9px 30px;font-size:15.5px;color:var(--stone);line-height:1.6}
.cs-arrow-list li::before{content:"\2192";position:absolute;left:0;top:9px;color:var(--gold);font-weight:500}
.cs-arrow-list li strong{color:var(--white);font-weight:500}

.cs-label-eye{display:inline-block;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:14px}

/* QUOTE */
.cs-pullquote{margin:48px 0;padding:40px 36px;background:rgba(184,149,106,.05);border-left:3px solid var(--gold);border-radius:0 8px 8px 0}
.cs-pullquote p{font-family:var(--ff-display);font-size:22px;font-style:italic;line-height:1.5;color:var(--cream);margin:0;font-weight:400}
.cs-pullquote cite{display:block;margin-top:18px;font-style:normal;font-size:13px;color:var(--gold);letter-spacing:.05em;font-family:var(--ff-body)}
@media(max-width:600px){.cs-pullquote{padding:28px 22px}.cs-pullquote p{font-size:18px}}

/* GALLERY */
.cs-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:36px 0}
@media(max-width:768px){.cs-gallery{grid-template-columns:repeat(2,1fr);gap:10px}}
.cs-gallery img{aspect-ratio:1/1;object-fit:cover;border-radius:4px;width:100%;background:#222220}
.cs-gallery .cs-wide{grid-column:span 2}
@media(max-width:768px){.cs-gallery .cs-wide{grid-column:auto}}

/* TIMELINE */
.cs-timeline{margin:32px 0;padding-left:32px;border-left:2px solid rgba(184,149,106,.25);position:relative}
.cs-timeline-item{margin-bottom:30px;position:relative}
.cs-timeline-item::before{content:"";position:absolute;left:-39px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--gold);border:3px solid var(--ink);box-shadow:0 0 0 2px var(--gold)}
.cs-timeline-day{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:6px}
.cs-timeline-title{font-family:var(--ff-display);font-size:20px;color:var(--white);margin-bottom:8px;font-weight:500}
.cs-timeline-desc{font-size:14.5px;color:var(--stone);line-height:1.7}

/* CTA BLOCK */
.cs-cta-block{padding:70px 32px;margin:60px 0 0;background:linear-gradient(135deg,#222220 0%,#1A1A18 100%);border:1px solid rgba(184,149,106,.18);border-radius:12px;text-align:center;position:relative;overflow:hidden}
.cs-cta-block::before{content:"";position:absolute;top:-50%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(184,149,106,.12) 0%,transparent 70%);pointer-events:none}
.cs-cta-block h3{position:relative;font-family:var(--ff-display);font-size:clamp(28px,3.4vw,40px);line-height:1.2;font-weight:400;margin-bottom:18px;color:var(--white)}
.cs-cta-block h3 em{font-style:italic;color:var(--gold-lt)}
.cs-cta-block p{position:relative;font-size:16px;color:var(--stone);max-width:560px;margin:0 auto 32px}
.cs-cta-actions{position:relative;display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.cs-btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;font-size:12px;letter-spacing:.15em;text-transform:uppercase;font-weight:500;border-radius:3px;transition:all .25s}
.cs-btn-primary{background:var(--gold);color:var(--ink)}
.cs-btn-primary:hover{background:var(--gold-lt);transform:translateY(-2px)}
.cs-btn-secondary{background:transparent;color:var(--white);border:1px solid var(--gold)}
.cs-btn-secondary:hover{background:var(--gold);color:var(--ink)}

/* RELATED */
.cs-related{padding:80px 0;background:#15140F;border-top:1px solid rgba(184,149,106,.1)}
.cs-related h2{font-family:var(--ff-display);font-size:30px;font-weight:400;margin-bottom:36px;text-align:center;color:var(--white)}
.cs-related h2 em{font-style:italic;color:var(--gold-lt)}
.cs-related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media(max-width:768px){.cs-related-grid{grid-template-columns:1fr}}
.cs-related-card{background:rgba(255,255,255,.03);border:1px solid rgba(184,149,106,.12);border-radius:8px;padding:28px;transition:all .25s;display:block}
.cs-related-card:hover{border-color:rgba(184,149,106,.4);transform:translateY(-3px)}
.cs-related-card .cs-label-eye{margin-bottom:12px}
.cs-related-card h4{font-family:var(--ff-display);font-size:22px;color:var(--white);margin-bottom:10px;font-weight:500;line-height:1.3}
.cs-related-card p{font-size:14px;color:var(--stone);margin-bottom:14px;line-height:1.6}
.cs-arrow{font-size:13px;color:var(--gold);letter-spacing:.05em}

/* FOOTER */
.cs-footer{padding:50px 0 30px;background:#0E0E0C;border-top:1px solid rgba(184,149,106,.1);text-align:center}
.cs-footer p{font-size:12px;color:var(--grey);letter-spacing:.04em}
.cs-footer a{color:var(--gold)}