/* =========================================================
   Dev SI.KHAN — Portfolio  |  Dark Blue + Cyan
   ========================================================= */
:root{
  --bg-0:#050914;
  --bg-1:#0a1224;
  --bg-2:#111d38;
  --bg-3:#17264a;
  --line:#1e3563;
  --text:#e6edff;
  --muted:#8ea3c7;
  --cyan:#22d3ee;
  --cyan-2:#67e8f9;
  --cyan-glow:rgba(34,211,238,.35);
  --blue:#3b82f6;
  --grad:linear-gradient(135deg,#22d3ee 0%,#3b82f6 100%);
  --radius:14px;
  --shadow:0 10px 40px rgba(0,0,0,.45);
  --shadow-cyan:0 0 40px rgba(34,211,238,.15);
  --maxw:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  min-height:100vh;
}

/* Ambient background */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(ellipse at 20% 0%,rgba(59,130,246,.18) 0%,transparent 50%),
    radial-gradient(ellipse at 80% 100%,rgba(34,211,238,.12) 0%,transparent 50%),
    linear-gradient(180deg,#050914 0%,#0a1224 60%,#050914 100%);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,black 30%,transparent 80%);
}

a{color:var(--cyan);text-decoration:none;transition:color .2s}
a:hover{color:var(--cyan-2)}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== HEADER / NAV ===== */
header.site-nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(5,9,20,.75);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:var(--maxw);margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  display:flex;align-items:center;gap:12px;
  font-weight:700;font-size:16px;color:var(--text);letter-spacing:.2px;
  line-height:1;
}
.brand > span:last-child{
  display:flex;flex-direction:column;justify-content:center;
  gap:3px;line-height:1;
}
.brand-logo{
  width:40px;height:40px;border-radius:50%;
  overflow:hidden;
  background:var(--bg-2);
  display:grid;place-items:center;
  border:2px solid var(--cyan);
  box-shadow:0 0 16px var(--cyan-glow);
  flex-shrink:0;
}
.brand-logo img{width:100%;height:100%;object-fit:cover;display:block}
.brand small{
  color:var(--cyan);font-weight:500;font-size:10px;
  letter-spacing:1.6px;line-height:1;margin:0;padding:0;display:block;
}
.brand br{display:none}
.nav-links{display:flex;gap:6px;align-items:center;list-style:none}
.nav-links a{
  color:var(--muted);font-size:14px;font-weight:500;
  padding:8px 14px;border-radius:8px;transition:all .2s;
}
.nav-links a:hover{color:var(--text);background:rgba(34,211,238,.08)}
.nav-links a.active{color:var(--cyan);background:rgba(34,211,238,.1)}
.nav-cta{
  padding:10px 18px;border-radius:10px;
  background:var(--grad);color:#03121e !important;font-weight:600;font-size:14px;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  border:1px solid transparent;
}
.nav-links li a.nav-cta:hover,
.nav-links li a.nav-cta:focus,
.site-nav .nav-links a.nav-cta:hover,
.site-nav .nav-links a.nav-cta:focus,
a.nav-cta:hover,
a.nav-cta:focus{
  transform:translateY(-2px);
  background:linear-gradient(135deg,#0a1224,#111d38) !important;
  color:#ffffff !important;
  border-color:#22d3ee !important;
  box-shadow:0 8px 24px rgba(34,211,238,.35) !important;
  text-decoration:none !important;
}
.nav-links li a.nav-cta:hover *,
a.nav-cta:hover *{ color:#ffffff !important; }
.burger{display:none;background:none;border:none;color:var(--text);cursor:pointer;font-size:24px}

/* ===== HERO ===== */
.hero{
  padding:80px 0 60px;position:relative;
}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);
  color:var(--cyan);font-size:13px;font-weight:500;
  margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.hero h1{
  font-family:'Space Grotesk','Inter',sans-serif;
  font-size:clamp(36px,5vw,60px);font-weight:700;
  line-height:1.05;letter-spacing:-1.5px;margin-bottom:22px;
}
.hero h1 .accent{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  padding:14px 28px;border-radius:12px;font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  transition:all .25s;border:none;
}
.btn-primary{background:var(--grad);color:#03121e}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px var(--cyan-glow);color:#03121e}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}

.hero-stats{
  display:flex;gap:32px;margin-top:48px;flex-wrap:wrap;
}
.stat{
  border-left:2px solid var(--cyan);padding-left:16px;
}
.stat b{display:block;font-size:26px;font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--text)}
.stat span{font-size:13px;color:var(--muted)}

/* Hero visual */
.hero-visual{
  position:relative;aspect-ratio:1/1;max-width:460px;margin-left:auto;
}
.hero-orb{
  position:absolute;inset:10%;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(34,211,238,.6),rgba(59,130,246,.2) 40%,transparent 70%);
  filter:blur(30px);animation:float 6s ease-in-out infinite;
}
.code-card{
  position:absolute;inset:15%;
  background:linear-gradient(135deg,rgba(17,29,56,.9),rgba(10,18,36,.9));
  border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow),var(--shadow-cyan);
  padding:24px;font-family:'JetBrains Mono',monospace;font-size:13px;
  display:flex;flex-direction:column;justify-content:center;
  backdrop-filter:blur(20px);
}
.code-card .dots{display:flex;gap:6px;position:absolute;top:16px;left:20px}
.code-card .dots span{width:10px;height:10px;border-radius:50%;background:var(--line)}
.code-card .dots span:nth-child(1){background:#ef4444}
.code-card .dots span:nth-child(2){background:#f59e0b}
.code-card .dots span:nth-child(3){background:#22c55e}
.code-card pre{margin-top:20px;color:var(--muted);line-height:1.9;font-size:12.5px}
.code-card .tk-key{color:#c084fc}
.code-card .tk-str{color:var(--cyan)}
.code-card .tk-fn{color:#fbbf24}
.code-card .tk-com{color:#4b5b7f;font-style:italic}
@keyframes float{
  0%,100%{transform:translateY(0) scale(1)}
  50%{transform:translateY(-12px) scale(1.03)}
}

/* ===== SECTIONS ===== */
section{padding:80px 0;position:relative}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-head .eyebrow{margin:0 auto 18px}
.section-head h2{
  font-family:'Space Grotesk',sans-serif;
  font-size:clamp(28px,3.5vw,42px);font-weight:700;
  letter-spacing:-1px;margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:16px}

/* ===== CARDS / GRIDS ===== */
.card{
  background:linear-gradient(180deg,rgba(17,29,56,.5),rgba(10,18,36,.5));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  transition:transform .3s,border-color .3s,box-shadow .3s;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at var(--mx,50%) var(--my,0%),rgba(34,211,238,.12),transparent 40%);
  opacity:0;transition:opacity .3s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5);box-shadow:var(--shadow-cyan)}
.card:hover::before{opacity:1}
.card h3{font-family:'Space Grotesk',sans-serif;font-size:20px;margin-bottom:10px;letter-spacing:-.3px}
.card p{color:var(--muted);font-size:14.5px}
.card .icon{
  width:52px;height:52px;border-radius:12px;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.25);
  display:grid;place-items:center;color:var(--cyan);
  margin-bottom:20px;font-size:22px;
}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* Skills */
.skill-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:8px;
  background:rgba(34,211,238,.06);
  border:1px solid rgba(34,211,238,.2);
  color:var(--cyan-2);font-size:13px;font-weight:500;
  font-family:'JetBrains Mono',monospace;
}
.skill-bar{margin-bottom:20px}
.skill-bar .top{display:flex;justify-content:space-between;margin-bottom:8px;font-size:14px}
.skill-bar .top b{font-weight:500}
.skill-bar .top span{color:var(--cyan);font-family:'JetBrains Mono',monospace;font-size:12.5px}
.skill-bar .track{height:6px;background:var(--bg-3);border-radius:99px;overflow:hidden}
.skill-bar .fill{height:100%;background:var(--grad);border-radius:99px;box-shadow:0 0 10px var(--cyan-glow)}

/* Portfolio */
.project{
  background:linear-gradient(180deg,rgba(17,29,56,.5),rgba(10,18,36,.5));
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.project:hover{transform:translateY(-6px);border-color:var(--cyan);box-shadow:var(--shadow-cyan)}
.project .thumb{
  aspect-ratio:16/10;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-1));
  position:relative;overflow:hidden;
  display:grid;place-items:center;
}
.project .thumb .mock{
  width:78%;aspect-ratio:16/10;border-radius:8px;
  background:linear-gradient(180deg,#1a2b52,#0e1a34);
  border:1px solid var(--line);
  box-shadow:0 20px 40px rgba(0,0,0,.4);
  position:relative;overflow:hidden;
}
.project .thumb .mock::before{
  content:"";position:absolute;top:0;left:0;right:0;height:22px;
  background:rgba(0,0,0,.3);border-bottom:1px solid var(--line);
}
.project .thumb .mock::after{
  content:"";position:absolute;top:6px;left:10px;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:14px 0 var(--muted),28px 0 var(--muted);
}
.project .tag{
  position:absolute;top:14px;right:14px;z-index:2;
  padding:6px 12px;border-radius:999px;font-size:11px;font-weight:600;letter-spacing:.5px;
  background:rgba(34,211,238,.15);color:var(--cyan);border:1px solid rgba(34,211,238,.3);
  backdrop-filter:blur(10px);text-transform:uppercase;
}
.project .body{padding:22px}
.project h3{font-family:'Space Grotesk',sans-serif;font-size:19px;margin-bottom:8px}
.project p{color:var(--muted);font-size:14px;margin-bottom:16px}
.project .stack{display:flex;flex-wrap:wrap;gap:6px}
.project .stack span{
  font-family:'JetBrains Mono',monospace;font-size:11px;
  padding:3px 8px;border-radius:6px;
  background:rgba(59,130,246,.1);color:#93c5fd;border:1px solid rgba(59,130,246,.2);
}

/* Testimonials */
.testimonial{
  padding:48px 32px 32px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(17,29,56,.5),rgba(10,18,36,.5));
  border:1px solid var(--line);position:relative;overflow:visible;
}
.testimonial::before{
  content:"\201C";position:absolute;top:8px;left:24px;font-size:64px;color:var(--cyan);
  font-family:Georgia,serif;line-height:1;opacity:.55;
}
.testimonial p{font-size:15.5px;color:var(--text);margin-bottom:20px;font-style:italic}

/* Contact sidebar icons — theme-matched */
.ds-ic-theme{
  width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(34,211,238,.14),rgba(59,130,246,.10));
  border:1px solid rgba(34,211,238,.25);
  color:var(--cyan);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.06), 0 4px 12px rgba(0,0,0,.25);
  transition:.25s;
}
.ds-contact-row{
  text-decoration:none;color:inherit;display:flex;gap:14px;align-items:center;
  margin-bottom:14px;padding:8px 6px;border-radius:10px;transition:.25s;
}
.ds-contact-row:hover{background:rgba(34,211,238,.06)}
.ds-contact-row:hover .ds-ic-theme{
  background:linear-gradient(135deg,var(--cyan),#3b82f6);
  color:#03121e;border-color:transparent;
  box-shadow:0 8px 20px rgba(34,211,238,.35);
}

/* Social icon buttons — theme-matched pill (footer + contact) */
.ds-socials{display:flex !important;flex-wrap:wrap;align-items:center}
.ds-socials a.ds-social-btn{
  box-sizing:border-box !important;
  width:36px !important; height:36px !important; min-width:36px !important;
  flex:0 0 36px !important;
  display:inline-flex !important; align-items:center !important; justify-content:center !important;
  border-radius:10px !important;
  background:linear-gradient(135deg,#111d38,#0a1224) !important;
  border:1px solid rgba(34,211,238,.28) !important;
  color:#22d3ee !important;
  text-decoration:none !important;
  transition:transform .25s ease, border-color .25s ease, color .25s ease, background .25s ease, box-shadow .25s ease !important;
  box-shadow:0 4px 12px rgba(0,0,0,.35), inset 0 0 0 1px rgba(34,211,238,.06) !important;
  position:relative; overflow:hidden;
  padding:0 !important; margin:0 !important;
}
.ds-socials a.ds-social-btn::before{
  content:""; position:absolute; inset:0; border-radius:inherit;
  background:linear-gradient(135deg,#22d3ee,#3b82f6);
  opacity:0; transition:opacity .25s ease; z-index:0; pointer-events:none;
}
.ds-socials a.ds-social-btn .ds-social-ic{
  position:relative; z-index:1;
  display:inline-flex !important; align-items:center; justify-content:center;
  width:16px !important; height:16px !important;
  color:inherit;
}
.ds-socials a.ds-social-btn .ds-social-ic svg{
  width:16px !important; height:16px !important;
  max-width:16px !important; max-height:16px !important;
  display:block !important;
}
.ds-socials a.ds-social-btn .ds-social-ic span{
  font-size:12px !important; line-height:1 !important; font-weight:800; letter-spacing:.4px;
}
.ds-socials a.ds-social-btn:hover{
  transform:translateY(-2px);
  color:#03121e !important;
  border-color:transparent !important;
  box-shadow:0 10px 24px rgba(34,211,238,.4) !important;
}
.ds-socials a.ds-social-btn:hover::before{opacity:1}

/* About page — animated info card */
.about-card{
  position:relative;overflow:hidden;padding:36px;border-radius:20px;
  background:linear-gradient(135deg,rgba(17,29,56,.7),rgba(10,18,36,.7));
  border:1px solid var(--line);box-shadow:var(--shadow),var(--shadow-cyan);
}
.about-card-glow{
  position:absolute;inset:-40%;pointer-events:none;
  background:radial-gradient(circle at 30% 20%, rgba(34,211,238,.28), transparent 55%),
             radial-gradient(circle at 80% 80%, rgba(59,130,246,.20), transparent 55%);
  animation: ds-glow-move 9s ease-in-out infinite alternate;
}
@keyframes ds-glow-move {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(-6%, 5%) scale(1.08); }
}
.about-card-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.18;
  background-image:
    linear-gradient(rgba(34,211,238,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,211,238,.12) 1px, transparent 1px);
  background-size:32px 32px;
  animation: ds-grid-pan 24s linear infinite;
}
@keyframes ds-grid-pan {
  0%   { background-position: 0 0, 0 0; }
  100% { background-position: 32px 32px, 32px 32px; }
}
.about-avatar-ring{
  position:relative;width:72px;height:72px;border-radius:50%;
  padding:3px;
  background:conic-gradient(from 0deg, var(--cyan), #3b82f6, #a855f7, var(--cyan));
  animation: ds-spin 5s linear infinite;
  box-shadow:0 0 24px rgba(34,211,238,.35), 0 0 48px rgba(59,130,246,.15);
  flex:0 0 auto;
}
.about-avatar-ring::before{
  content:"";position:absolute;inset:3px;border-radius:50%;background:#0a1224;z-index:0;
}
.about-avatar-ring::after{
  content:"";position:absolute;top:-4px;left:50%;
  width:8px;height:8px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 12px var(--cyan);
  transform:translateX(-50%);z-index:2;
}
.about-avatar-ring img{position:relative;z-index:1}
@keyframes ds-spin { to { transform: rotate(360deg); } }

/* Big framed avatar (used on hero-side of About) — for stronger motion */
.about-portrait{
  position:relative;width:100%;max-width:360px;aspect-ratio:1/1;
  margin:0 auto;border-radius:24px;padding:6px;
  background:conic-gradient(from 0deg, var(--cyan), #3b82f6, #a855f7, #22d3ee, var(--cyan));
  animation: ds-spin 9s linear infinite;
  box-shadow:0 20px 60px rgba(0,0,0,.4), 0 0 60px rgba(34,211,238,.25);
}
.about-portrait::before{
  content:"";position:absolute;inset:6px;border-radius:20px;background:#0a1224;z-index:0;
}
.about-portrait > img{
  position:relative;z-index:1;width:100%;height:100%;
  object-fit:cover;border-radius:18px;display:block;
}

.pulse-dot{
  margin-left:auto;width:10px;height:10px;border-radius:50%;background:#22c55e;
  box-shadow:0 0 0 0 rgba(34,197,94,.7);
  animation: ds-pulse 2s infinite;
}
@keyframes ds-pulse {
  0%   { box-shadow:0 0 0 0 rgba(34,197,94,.7); }
  70%  { box-shadow:0 0 0 14px rgba(34,197,94,0); }
  100% { box-shadow:0 0 0 0 rgba(34,197,94,0); }
}

.about-stats-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;font-size:13.5px;
}
.about-stat{
  padding:14px 16px;border-radius:12px;
  background:rgba(2,10,26,.45);border:1px solid var(--line);
  transition:transform .3s ease, border-color .3s ease;
}
.about-stat:hover{transform:translateY(-3px);border-color:var(--cyan)}
.about-stat small{color:var(--muted);display:block;margin-bottom:4px;font-size:11.5px;text-transform:uppercase;letter-spacing:1px}
.about-stat b{font-size:18px;color:var(--text);font-family:'Space Grotesk',sans-serif}

/* Filter tabs */
.ds-tabs{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:32px;
}
.ds-tab{
  background:rgba(17,29,56,.5);border:1px solid var(--line);
  color:var(--text);padding:9px 18px;border-radius:100px;
  font-family:inherit;font-size:13px;font-weight:500;cursor:pointer;
  transition:.2s;letter-spacing:.3px;
}
.ds-tab:hover{border-color:var(--cyan);color:var(--cyan)}
.ds-tab.active{
  background:linear-gradient(135deg,var(--cyan),#3b82f6);
  color:#03121e;border-color:transparent;font-weight:700;
}

/* Testimonials slider */
.ds-slider{position:relative;overflow:hidden;padding:8px 4px}
.ds-slider-track{display:flex;transition:transform .55s cubic-bezier(.22,.61,.36,1);will-change:transform}
.ds-slider-track > *{flex:0 0 calc((100% - 48px) / 3);margin-right:24px;box-sizing:border-box}
.ds-slider-track > *:last-child{margin-right:0}
@media (max-width:900px){ .ds-slider-track > *{flex-basis:calc((100% - 24px) / 2)} }
@media (max-width:600px){ .ds-slider-track > *{flex-basis:100%;margin-right:0} }

.ds-slider-nav{
  display:flex !important;justify-content:center;align-items:center;
  gap:16px;margin:36px auto 0;width:100%;
}
.ds-slider-nav button{
  flex:0 0 auto;
  width:48px !important;height:48px !important;
  padding:0;border-radius:50%;
  border:1px solid var(--line);
  background:rgba(17,29,56,.6);color:var(--text);
  cursor:pointer;font-size:22px;line-height:1;font-weight:500;
  display:inline-flex;align-items:center;justify-content:center;
  transition:.2s;box-shadow:0 4px 12px rgba(0,0,0,.25);
}
.ds-slider-nav button:hover{
  background:linear-gradient(135deg,var(--cyan),#3b82f6);
  color:#03121e;border-color:transparent;transform:translateY(-2px);
}
.ds-slider-dots{
  display:inline-flex;gap:8px;align-items:center;padding:0 14px;
}
.ds-slider-dots span{
  width:9px;height:9px;border-radius:50%;background:var(--line);
  cursor:pointer;transition:.25s;display:inline-block;
}
.ds-slider-dots span.on{background:var(--cyan);width:28px;border-radius:5px}
.testimonial .who{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;
  background:var(--grad);display:grid;place-items:center;
  font-weight:700;color:#03121e;font-family:'Space Grotesk',sans-serif;
}
.who b{display:block;font-size:14px}
.who small{color:var(--muted);font-size:12.5px}
.stars{color:#fbbf24;font-size:13px;margin-bottom:12px;letter-spacing:2px}

/* Form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group.full{grid-column:1/-1}
label{display:block;font-size:13px;font-weight:500;margin-bottom:8px;color:var(--muted)}
input,textarea,select{
  width:100%;padding:13px 16px;border-radius:10px;
  background:rgba(10,18,36,.6);border:1px solid var(--line);
  color:var(--text);font-size:14.5px;font-family:inherit;
  transition:border-color .2s,box-shadow .2s;
}
input:focus,textarea:focus,select:focus{
  outline:none;border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(34,211,238,.1);
}
textarea{min-height:140px;resize:vertical}

/* Case study */
.case{
  display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:center;
  padding:40px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(17,29,56,.5),rgba(10,18,36,.5));
  border:1px solid var(--line);margin-bottom:32px;
}
.case:nth-child(even){grid-template-columns:1.2fr 1fr}
.case:nth-child(even) .case-visual{order:2}
.case-visual{
  aspect-ratio:4/3;border-radius:12px;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);position:relative;overflow:hidden;
  display:grid;place-items:center;font-family:'JetBrains Mono',monospace;
  color:var(--cyan);font-size:14px;
}
.case-visual::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(45deg,transparent 0 20px,rgba(34,211,238,.03) 20px 21px);
}
.case-body h3{font-family:'Space Grotesk',sans-serif;font-size:26px;margin-bottom:14px;letter-spacing:-.5px}
.case-body .meta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:16px;font-size:13px;color:var(--muted)}
.case-body .meta span b{color:var(--cyan)}
.case-body ul{list-style:none;margin-top:16px}
.case-body ul li{
  padding-left:22px;position:relative;margin-bottom:8px;font-size:14.5px;color:var(--muted);
}
.case-body ul li::before{
  content:"▸";position:absolute;left:0;color:var(--cyan);font-weight:bold;
}
.case-results{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px;
}
.case-results div{
  background:rgba(34,211,238,.05);border:1px solid rgba(34,211,238,.15);
  padding:12px;border-radius:10px;text-align:center;
}
.case-results b{display:block;color:var(--cyan);font-size:22px;font-family:'Space Grotesk',sans-serif}
.case-results small{color:var(--muted);font-size:11.5px}

/* Contact split */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:40px}
.contact-info{
  padding:32px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(34,211,238,.06),rgba(59,130,246,.03));
  border:1px solid var(--line);height:fit-content;
}
.contact-info h3{font-family:'Space Grotesk',sans-serif;font-size:22px;margin-bottom:10px}
.contact-info p{color:var(--muted);margin-bottom:24px;font-size:14.5px}
.contact-info .row{
  display:flex;align-items:center;gap:14px;padding:14px 0;
  border-bottom:1px solid var(--line);font-size:14px;
}
.contact-info .row:last-child{border-bottom:none}
.contact-info .row .ic{
  width:38px;height:38px;border-radius:10px;flex:0 0 38px;
  background:rgba(34,211,238,.1);color:var(--cyan);
  display:grid;place-items:center;font-size:16px;
}
.contact-info .row small{display:block;color:var(--muted);font-size:12px}

/* ===== FOOTER ===== */
footer{
  border-top:1px solid var(--line);background:rgba(5,9,20,.6);
  padding:56px 0 24px;margin-top:60px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px;max-width:280px}
.foot-col h4{
  font-size:13px;text-transform:uppercase;letter-spacing:1.5px;color:var(--cyan);
  margin-bottom:16px;font-weight:600;
}
.foot-col a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);
}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:10px;
  background:var(--bg-2);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--muted);
  transition:all .2s;
}
.socials a:hover{background:var(--cyan);color:#03121e;border-color:var(--cyan)}

/* Page banner (for inner pages) */
.page-banner{
  padding:60px 0 30px;text-align:center;position:relative;
}
.page-banner h1{
  font-family:'Space Grotesk',sans-serif;
  font-size:clamp(30px,4vw,48px);font-weight:700;letter-spacing:-1.2px;margin-bottom:14px;
}
.page-banner h1 .accent{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-banner p{color:var(--muted);max-width:640px;margin:0 auto;font-size:16px}
.breadcrumb{
  display:flex;justify-content:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}

/* Fade-in */
.reveal{opacity:0;transform:translateY(20px);transition:all .8s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media (max-width:960px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-grid,.contact-grid,.case,.case:nth-child(even){grid-template-columns:1fr}
  .case:nth-child(even) .case-visual{order:0}
  .hero-visual{max-width:360px;margin:0 auto}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4,.form-grid{grid-template-columns:1fr}
  .nav-links{
    position:fixed;top:70px;right:0;left:0;
    flex-direction:column;background:rgba(5,9,20,.98);
    padding:24px;gap:4px;border-bottom:1px solid var(--line);
    transform:translateY(-120%);transition:transform .3s;
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links a{width:100%;padding:12px}
  .burger{display:block}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:12px;text-align:center}
  section{padding:56px 0}
}