/* ===== CLIENT LOGO ===== */
.case-hero__logo{max-height:64px;width:auto;object-fit:contain;padding:10px 24px;background:#fff;border-radius:12px;border:1px solid #eee;margin-bottom:20px;display:block;margin-left:auto;margin-right:auto}

/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',sans-serif;color:#0d0d0d;background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* ===== UTILITIES ===== */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.text-center{text-align:center}
.text-muted-light{color:rgba(255,255,255,.7)}
.section{padding:100px 0}
.section--dark{background:#0d0d0d;color:#fff}
.section--light{background:#f7f7f8;color:#0d0d0d}
.section__sub{max-width:640px;margin:12px auto 0;font-size:1.05rem;color:#555;line-height:1.7}
.section--dark .section__sub{color:rgba(255,255,255,.65)}
.highlight{color:#0D55FF}
.section--dark .highlight{color:#5B93FF}

h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:800;line-height:1.12;letter-spacing:-.03em}
h2{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:16px}
h3{font-size:1.35rem;font-weight:700;line-height:1.25}
h4{font-size:1.1rem;font-weight:700;line-height:1.3}

/* ===== TAG ===== */
.tag{display:inline-block;padding:6px 18px;border-radius:100px;font-size:.8rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;margin-bottom:16px}
.tag--blue{background:rgba(13,85,255,.1);color:#0D55FF}
.tag--white{background:rgba(255,255,255,.1);color:#fff}
.tag--dark{background:rgba(0,0,0,.08);color:#0d0d0d}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .25s ease;border:none}
.btn--primary{background:#0D55FF;color:#fff}
.btn--primary:hover{background:#0040dd;transform:translateY(-2px);box-shadow:0 6px 24px rgba(13,85,255,.3)}
.btn--outline{border:1.5px solid rgba(255,255,255,.25);color:#fff;background:transparent}
.btn--outline:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn--sm{padding:10px 20px;font-size:.85rem}
.btn--lg{padding:18px 36px;font-size:1.05rem}

/* ===== NAV ===== */
.nav{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:18px 0;transition:all .35s ease}
.nav--scrolled{background:rgba(13,13,13,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:12px 0;box-shadow:0 1px 20px rgba(0,0,0,.15)}
.nav__inner{display:flex;align-items:center;justify-content:space-between}
.nav__logo{font-size:1.35rem;font-weight:800;color:#fff;letter-spacing:-.02em}
.nav__logo span{color:#0D55FF}
.nav__links{display:flex;gap:32px}
.nav__links a{color:rgba(255,255,255,.75);font-size:.88rem;font-weight:500;transition:color .2s}
.nav__links a:hover{color:#fff}
.nav__cta{display:none}
.nav__hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.nav__hamburger span{width:22px;height:2px;background:#fff;border-radius:2px;transition:all .3s}

@media(min-width:900px){.nav__cta{display:inline-flex}}
@media(max-width:899px){
  .nav__links{position:fixed;top:0;left:0;width:100%;height:100vh;background:#0d0d0d;flex-direction:column;align-items:center;justify-content:center;gap:28px;opacity:0;pointer-events:none;transition:opacity .35s}
  .nav__links.open{opacity:1;pointer-events:auto}
  .nav__links a{font-size:1.2rem;color:#fff}
  .nav__hamburger{display:flex;z-index:1001}
  .nav__hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav__hamburger.open span:nth-child(2){opacity:0}
  .nav__hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ===== HERO ===== */
.hero{background:#0d0d0d;color:#fff;text-align:center;padding-top:160px;padding-bottom:80px}
.hero__breadcrumb{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:24px;font-size:.88rem;color:rgba(255,255,255,.5)}
.hero__breadcrumb a{color:rgba(255,255,255,.5);transition:color .2s}
.hero__breadcrumb a:hover{color:#fff}
.hero__breadcrumb span{color:#fff}
.hero__breadcrumb svg{opacity:.4}
.hero h1{margin-top:12px;margin-bottom:20px;max-width:800px;margin-left:auto;margin-right:auto}
.hero__body{max-width:660px;margin:0 auto 48px;font-size:1.1rem;color:rgba(255,255,255,.65);line-height:1.7}
.hero__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:720px;margin:0 auto;padding-top:48px;border-top:1px solid rgba(255,255,255,.1)}
.hero__stat{text-align:center}
.hero__stat strong{display:block;font-size:1.8rem;font-weight:800;color:#5B93FF;letter-spacing:-.02em}
.hero__stat span{font-size:.82rem;color:rgba(255,255,255,.5);font-weight:500}

@media(max-width:600px){
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:20px;max-width:360px}
}

/* ===== CLIENT OVERVIEW ===== */
.client-overview{padding:80px 0}
.overview__grid{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:start}
.overview__info h2{margin-bottom:20px}
.overview__info p{color:#555;line-height:1.75;margin-bottom:16px}
.meta__card{background:#f7f7f8;border-radius:14px;padding:32px}
.meta__item{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid rgba(0,0,0,.06)}
.meta__item:last-child{border-bottom:none}
.meta__label{font-size:.85rem;color:#888;font-weight:500}
.meta__value{font-size:.92rem;font-weight:600;color:#0d0d0d;text-align:right}

@media(max-width:768px){
  .overview__grid{grid-template-columns:1fr;gap:40px}
}

/* ===== CHALLENGE ===== */
.challenge h2{margin-bottom:40px}
.challenge__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:40px}
.challenge__desc p{color:rgba(255,255,255,.7);line-height:1.75;margin-bottom:16px}
.challenge__cards{display:flex;flex-direction:column;gap:20px}
.challenge__card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:28px}
.challenge__card-icon{width:44px;height:44px;border-radius:10px;background:rgba(13,85,255,.15);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:#5B93FF}
.challenge__card h4{margin-bottom:8px;color:#fff}
.challenge__card p{font-size:.9rem;color:rgba(255,255,255,.6);line-height:1.6}

@media(max-width:768px){
  .challenge__grid{grid-template-columns:1fr;gap:36px}
}

/* ===== APPROACH / PHASES ===== */
.approach{padding:100px 0}
.phases{margin-top:56px;display:flex;flex-direction:column;gap:24px}
.phase{background:#f7f7f8;border-radius:14px;padding:36px 40px;transition:all .35s ease}
.phase:hover{background:#f0f2f5}
.phase__header{display:flex;align-items:flex-start;gap:20px;margin-bottom:20px}
.phase__num{width:48px;height:48px;border-radius:10px;background:#0D55FF;color:#fff;font-size:1rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.phase__header h3{margin-bottom:2px}
.phase__time{font-size:.82rem;color:#0D55FF;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.phase__body ul{display:grid;grid-template-columns:1fr 1fr;gap:10px 32px;padding-left:20px;list-style:disc}
.phase__body li{font-size:.92rem;color:#555;line-height:1.6}
.phase__body li::marker{color:#0D55FF}

@media(max-width:600px){
  .phase{padding:28px 24px}
  .phase__body ul{grid-template-columns:1fr}
}

/* ===== RESULTS ===== */
.results__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px}
.result__card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:40px 28px;text-align:center;transition:all .35s ease}
.result__card:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
.result__card--accent{background:rgba(13,85,255,.15);border-color:rgba(13,85,255,.25)}
.result__card--accent:hover{background:rgba(13,85,255,.2)}
.result__num{font-size:2.6rem;font-weight:900;color:#5B93FF;letter-spacing:-.03em;margin-bottom:8px;line-height:1}
.result__card--accent .result__num{color:#fff}
.result__card p{font-size:.92rem;color:rgba(255,255,255,.6);font-weight:500}
.result__card--accent p{color:rgba(255,255,255,.8)}

@media(max-width:768px){
  .results__grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .results__grid{grid-template-columns:1fr}
}

/* ===== TIMELINE ===== */
.timeline-section{padding:100px 0}
.timeline{position:relative;max-width:900px;margin:56px auto 0;padding:20px 0}
.timeline__line{position:absolute;left:50%;top:0;bottom:0;width:2px;background:#e0e0e0;transform:translateX(-50%)}
.timeline__item{position:relative;width:50%;padding:0 40px 60px}
.timeline__item--left{left:0;text-align:right}
.timeline__item--right{left:50%;text-align:left}
.timeline__dot{position:absolute;top:4px;width:16px;height:16px;border-radius:50%;background:#0D55FF;border:3px solid #fff;box-shadow:0 0 0 2px #0D55FF;z-index:2}
.timeline__item--left .timeline__dot{right:-8px}
.timeline__item--right .timeline__dot{left:-8px}
.timeline__card{background:#f7f7f8;border-radius:14px;padding:24px 28px;display:inline-block;text-align:left}
.timeline__month{display:inline-block;font-size:.75rem;font-weight:700;color:#0D55FF;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;padding:4px 12px;background:rgba(13,85,255,.08);border-radius:100px}
.timeline__card h4{margin-bottom:8px}
.timeline__card p{font-size:.88rem;color:#555;line-height:1.6}

@media(max-width:700px){
  .timeline__line{left:20px}
  .timeline__item{width:100%;left:0!important;text-align:left!important;padding:0 0 40px 52px}
  .timeline__item .timeline__dot{left:12px!important;right:auto!important}
}

/* ===== KEYWORDS TABLE ===== */
.keywords-section{padding:100px 0}
.keywords__table-wrap{max-width:800px;margin:48px auto 0;overflow-x:auto}
.keywords__table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 16px rgba(0,0,0,.06)}
.keywords__table thead{background:#0d0d0d}
.keywords__table th{padding:16px 24px;font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:rgba(255,255,255,.7);text-align:left}
.keywords__table th:nth-child(2),.keywords__table th:nth-child(3){text-align:center}
.keywords__table td{padding:16px 24px;font-size:.92rem;color:#333;border-bottom:1px solid rgba(0,0,0,.06)}
.keywords__table td:nth-child(2),.keywords__table td:nth-child(3){text-align:center}
.keywords__table tbody tr:last-child td{border-bottom:none}
.keywords__table tbody tr{transition:background .2s}
.keywords__table tbody tr:hover{background:#f7f7f8}
.rank{display:inline-block;padding:4px 14px;border-radius:100px;font-size:.82rem;font-weight:700}
.rank--top{background:rgba(13,85,255,.1);color:#0D55FF}
.rank--top5{background:rgba(13,85,255,.06);color:#0D55FF}
.rank--top10{background:rgba(0,0,0,.05);color:#555}

@media(max-width:600px){
  .keywords__table th,.keywords__table td{padding:12px 16px;font-size:.82rem}
}

/* ===== TESTIMONIAL ===== */
.testimonial-section{padding:80px 0}
.testimonial{max-width:760px;margin:0 auto;text-align:center}
.testimonial__quote svg{margin:0 auto 24px;opacity:.7}
.testimonial__quote blockquote{font-size:1.3rem;font-weight:500;line-height:1.65;color:rgba(255,255,255,.9);font-style:italic;margin-bottom:24px}
.testimonial__quote cite{font-size:.92rem;color:rgba(255,255,255,.5);font-style:normal;font-weight:500}

/* ===== SERVICES USED ===== */
.services-used{padding:80px 0}
.services-used .services__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.service-used__card{background:#f7f7f8;border-radius:14px;padding:32px 24px;text-align:center;transition:all .3s ease}
.service-used__card:hover{background:#eef0f4;transform:translateY(-4px)}
.service-used__icon{width:56px;height:56px;border-radius:14px;background:rgba(13,85,255,.08);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:#0D55FF}
.service-used__card h4{color:#0d0d0d}

@media(max-width:600px){
  .services-used .services__grid{grid-template-columns:repeat(2,1fr)}
}

/* ===== RELATED CASE STUDIES ===== */
.related__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.related__card{background:#fff;border:1px solid #e8e8ea;border-radius:14px;padding:32px;transition:all .3s ease;display:block}
.related__card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.08);border-color:#d0d0d4}
.related__tag{display:inline-block;font-size:.72rem;font-weight:700;color:#0D55FF;text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px;padding:4px 12px;background:rgba(13,85,255,.06);border-radius:100px}
.related__card h3{margin-bottom:10px;font-size:1.15rem}
.related__card p{font-size:.88rem;color:#666;line-height:1.6;margin-bottom:20px}
.related__stat{font-size:1.3rem;font-weight:800;color:#0D55FF;letter-spacing:-.02em}

@media(max-width:768px){
  .related__grid{grid-template-columns:1fr;max-width:440px;margin-left:auto;margin-right:auto}
}

/* ===== BOTTOM CTA ===== */
.cta-bottom{padding:100px 0;text-align:center}
.cta-bottom h2{font-size:clamp(2rem,4.5vw,3rem);margin-bottom:16px}
.cta__body{max-width:520px;margin:0 auto 36px;font-size:1.1rem;color:rgba(255,255,255,.65);line-height:1.7}

/* ===== FOOTER ===== */
.footer{background:#0d0d0d;color:#fff;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.06)}
.footer__inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer__brand p{color:rgba(255,255,255,.45);font-size:.88rem;line-height:1.6;margin-top:12px;max-width:280px}
.footer__col h4{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:rgba(255,255,255,.4);margin-bottom:16px}
.footer__col a{display:block;font-size:.88rem;color:rgba(255,255,255,.6);margin-bottom:10px;transition:color .2s}
.footer__col a:hover{color:#fff}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;padding:24px 0;font-size:.8rem;color:rgba(255,255,255,.35)}
.footer__bottom a{color:rgba(255,255,255,.35);margin-left:20px;transition:color .2s}
.footer__bottom a:hover{color:#fff}

@media(max-width:768px){
  .footer__inner{grid-template-columns:1fr 1fr;gap:36px}
  .footer__bottom{flex-direction:column;gap:12px;text-align:center}
  .footer__bottom a{margin-left:12px}
}
@media(max-width:480px){
  .footer__inner{grid-template-columns:1fr}
}

/* ===== FADE-UP ANIMATION ===== */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.fade-up:nth-child(2){transition-delay:.08s}
.fade-up:nth-child(3){transition-delay:.16s}
.fade-up:nth-child(4){transition-delay:.24s}
.fade-up:nth-child(5){transition-delay:.32s}
.fade-up:nth-child(6){transition-delay:.4s}