/* ===========================================================
   RVZ Bilişim — Projeler Girdabı · "Teknik Şema" yönü
   Refined technical / blueprint dark. No glow-slop.
   =========================================================== */
*{margin:0;padding:0;box-sizing:border-box}
/* ---- LIGHT BLUE theme (default) ---- */
:root{
  --ink:#eaf2fc; --ink2:#f3f8fe; --panel:#ffffff; --panel2:#f1f6fd;
  --line:#d3e2f5; --line2:#bcd2ee; --rule:#dce8f7;
  --fg:#11233b; --muted:#5b738f; --faint:#90a6c2;
  --accent:#1a5cdb; --accent2:#3d7bea;
  --hatch:rgba(26,92,219,.045); --grid:rgba(26,92,219,.10); --fine:rgba(26,92,219,.05);
  --edge:#cfe0f4; --shadow:24,52,98;
  --ov-bg:rgba(225,236,250,.86); --ringc:#9bbbe6;

  --ch-server:#1a5cdb;  --ch-security:#7c3aed;
  --ch-cloud:#0891b2;    --ch-network:#ea580c;

  --font:'Inter',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
/* ---- DARK theme (toggle) ---- */
body[data-theme=dark]{
  --ink:#0a0e13; --ink2:#0d121a; --panel:#10171f; --panel2:#15202b;
  --line:#1b2530; --line2:#2a3946; --rule:#202a35;
  --fg:#e9eef2; --muted:#8696a1; --faint:#54636e;
  --accent:#4f8cff; --accent2:#86b2ff;
  --hatch:rgba(255,255,255,.012); --grid:#1b2530; --fine:rgba(120,150,180,.05);
  --edge:#05070b; --shadow:0,0,0;
  --ov-bg:rgba(6,9,13,.86); --ringc:#36505f;
  --ch-server:#5b8dff;  --ch-security:#a382ff;
  --ch-cloud:#3fc6d4;   --ch-network:#e8a13c;
}
html,body{background:var(--ink);color:var(--fg);font-family:var(--font);-webkit-font-smoothing:antialiased}
body{position:relative;min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#fff}

/* ---- ambient: hairline blueprint grid + vignette (no blur glows) ---- */
.bg-grid{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:46px 46px;
  mask:radial-gradient(135% 110% at 50% 42%,#000 42%,transparent 86%)}
.bg-fine{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(var(--fine) 1px,transparent 1px),
                   linear-gradient(90deg,var(--fine) 1px,transparent 1px);
  background-size:46px 46px;background-position:11px 11px;
  mask:radial-gradient(120% 100% at 50% 42%,#000 35%,transparent 80%)}
.bg-vignette{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(140% 130% at 50% 38%,transparent 52%,var(--edge) 100%)}

/* crop marks at page frame (editorial / print) */
.frame-marks{position:fixed;inset:18px;z-index:1;pointer-events:none}
.frame-marks::before,.frame-marks::after{content:"";position:absolute;width:13px;height:13px}
.frame-marks::before{top:0;left:0;border-top:1px solid var(--line2);border-left:1px solid var(--line2)}
.frame-marks::after{bottom:0;right:0;border-bottom:1px solid var(--line2);border-right:1px solid var(--line2)}
.frame-marks i{position:absolute;width:13px;height:13px}
.frame-marks i.tr{top:0;right:0;border-top:1px solid var(--line2);border-right:1px solid var(--line2)}
.frame-marks i.bl{bottom:0;left:0;border-bottom:1px solid var(--line2);border-left:1px solid var(--line2)}

/* ---- top bar ---- */
.topbar{position:relative;z-index:6;display:flex;align-items:center;justify-content:space-between;
  padding:24px clamp(22px,5vw,60px);border-bottom:1px solid var(--line)}
.brand{font-family:var(--mono);font-weight:700;letter-spacing:.2em;font-size:13px}
.brand b{color:var(--accent2)}
.topbar nav{display:flex;gap:30px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted)}
.topbar nav a.active,.topbar nav a:hover{color:var(--fg)}
.topbar .meta{font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:.1em}
.topbar .right{display:flex;align-items:center;gap:18px}
.theme-toggle{display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted);
  background:var(--panel2);border:1px solid var(--line2);border-radius:999px;padding:7px 13px;transition:.2s}
.theme-toggle:hover{color:var(--fg);border-color:var(--accent)}
.theme-toggle .ic{width:12px;height:12px;border-radius:50%;border:1.5px solid currentColor;
  background:linear-gradient(90deg,currentColor 50%,transparent 50%)}
@media(max-width:860px){.topbar nav,.topbar .meta{display:none}}

/* ---- hero ---- */
.hero{position:relative;z-index:5;max-width:1180px;margin:0 auto;padding:60px clamp(22px,5vw,60px) 6px;
  display:grid;grid-template-columns:1fr auto;align-items:end;gap:30px}
.hero-l{max-width:680px}
.kicker{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--accent);text-transform:uppercase;margin-bottom:22px}
.kicker .bar{height:1px;width:54px;background:var(--line2)}
.kicker .idx{color:var(--accent2)}
.hero h1{font-size:clamp(40px,6.4vw,82px);font-weight:600;line-height:.98;letter-spacing:-.025em}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#1a5cdb,#3d7bea 60%,#2b7cff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--accent)}
.hero p{margin-top:24px;max-width:520px;color:var(--muted);font-size:16px;line-height:1.62}
.hero p b{color:var(--fg);font-weight:600}
.hero-r{font-family:var(--mono);font-size:11.5px;color:var(--faint);text-align:right;line-height:1.9;
  border-left:1px solid var(--line);padding-left:18px}
.hero-r b{color:var(--muted);font-weight:500}
@media(max-width:860px){.hero{grid-template-columns:1fr}.hero-r{display:none}}

/* ---- vortex stage ---- */
.vortex{position:relative;z-index:4;height:min(84vh,820px);min-height:600px;width:100%;
  user-select:none;overflow:visible}
.stage{position:absolute;inset:0}

/* center brand hub — cards orbit around this */
.hub{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);z-index:2;
  text-align:center;pointer-events:none;width:max-content;
  transition:opacity .4s ease}
.hub::before{content:"";position:absolute;left:50%;top:50%;width:440px;height:300px;
  transform:translate(-50%,-50%);z-index:-1;border-radius:50%;
  background:radial-gradient(ellipse,var(--ink) 34%,transparent 72%)}
.hub-eyebrow{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.34em;
  text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.hub-logo{display:block;font-size:clamp(48px,6.2vw,84px);font-weight:700;letter-spacing:-.03em;
  line-height:.82;color:var(--fg)}
.hub-name{display:block;font-size:clamp(15px,1.7vw,22px);font-weight:600;letter-spacing:.46em;
  color:var(--accent);margin-top:12px;padding-left:.46em}
.hub-rule{display:block;width:48px;height:2px;background:var(--accent);opacity:.55;margin:18px auto 0}

/* plate layer */
.plates{position:absolute;inset:0;z-index:3}
.pl{position:absolute;left:50%;top:46%;width:208px;margin-left:-104px;margin-top:-112px;
  cursor:pointer;will-change:transform,opacity;opacity:0;
  --cc:var(--ch-server)}
.pl[data-cat=server]{--cc:var(--ch-server)}
.pl[data-cat=security]{--cc:var(--ch-security)}
.pl[data-cat=cloud]{--cc:var(--ch-cloud)}
.pl[data-cat=network]{--cc:var(--ch-network)}
.pl-in{position:relative;background:var(--panel);border:1px solid var(--line2);border-left:3px solid var(--cc);
  border-radius:4px;box-shadow:0 18px 38px -14px rgba(var(--shadow),.34),0 3px 10px -2px rgba(var(--shadow),.16);
  transition:border-color .2s,box-shadow .2s,transform .2s}
.pl.hot .pl-in{border-color:var(--accent);
  box-shadow:0 28px 56px -14px rgba(var(--shadow),.44),0 0 0 1px var(--accent)}
.pl.hot{z-index:300}
/* corner registration ticks */
.pl-in::before,.pl-in::after{content:"";position:absolute;width:7px;height:7px;opacity:.5;transition:opacity .2s}
.pl-in::before{top:-1px;right:-1px;border-top:1px solid var(--cc);border-right:1px solid var(--cc)}
.pl-in::after{bottom:-1px;left:-1px;border-bottom:1px solid var(--cc);border-left:1px solid var(--cc)}
.pl.hot .pl-in::before,.pl.hot .pl-in::after{opacity:1}
.pl-top{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;
  border-bottom:1px solid var(--line);font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--faint)}
.pl-code{display:flex;align-items:center;gap:7px;color:var(--cc)}
.pl-code .sq{width:7px;height:7px;background:var(--cc)}
.pl-fig{margin:12px 12px 0;height:78px;border:1px solid var(--line);border-radius:2px;display:grid;place-items:center;
  background:repeating-linear-gradient(45deg,transparent,transparent 7px,var(--hatch) 7px,var(--hatch) 8px)}
.pl-fig svg{width:74%;height:74%}
.pl-body{padding:11px 12px 13px}
.pl-cat{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--cc)}
.pl-title{margin-top:6px;font-size:14px;font-weight:600;line-height:1.24;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pl-foot{display:flex;align-items:center;justify-content:space-between;margin-top:11px;
  font-family:var(--mono);font-size:10.5px;color:var(--faint)}
.pl-foot .go{color:var(--muted);opacity:0;transform:translateX(-4px);transition:.2s}
.pl.hot .pl-foot .go{opacity:1;transform:none;color:var(--accent2)}

/* hud + legend */
.hud{position:absolute;left:0;right:0;bottom:6px;z-index:5;display:flex;align-items:center;
  justify-content:space-between;padding:0 clamp(22px,5vw,60px);pointer-events:none}
.hud-now{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted)}
.hud-now b{color:var(--fg);font-weight:500}
.hud-now .az{color:var(--accent2)}
.legend{display:flex;gap:16px;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--faint)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:8px;height:8px;display:inline-block}
.hud-hint{position:absolute;left:50%;bottom:6px;transform:translateX(-50%);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--faint)}
@media(max-width:680px){.legend,.hud-hint{display:none}}

/* ===================== DETAIL · SPEC SHEET ===================== */
.detail{position:fixed;inset:0;z-index:500;display:none;background:var(--ov-bg);
  backdrop-filter:blur(3px);--cc:var(--ch-server)}
.detail.on{display:block}
.sheet{position:absolute;inset:clamp(18px,4vh,46px) clamp(18px,5vw,70px);
  background:var(--ink2);border:1px solid var(--line2);border-radius:4px;
  display:flex;flex-direction:column;opacity:1;transform:none;
  box-shadow:0 50px 120px -40px rgba(var(--shadow),.55);overflow:hidden}
.detail.on .sheet{animation:sheetIn .5s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes sheetIn{from{opacity:0;transform:translateY(16px) scale(.99)}to{opacity:1;transform:none}}
.sheet-hd{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;
  border-bottom:1px solid var(--line);font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--faint)}
.sheet-hd .l{display:flex;gap:18px;align-items:center}
.sheet-hd .tag{color:var(--cc)}
.sheet-close{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);cursor:pointer;
  background:none;border:1px solid var(--line2);border-radius:3px;padding:8px 14px;transition:.2s}
.sheet-close:hover{color:var(--fg);border-color:var(--accent)}
.sheet-body{flex:1;display:grid;grid-template-columns:1.04fr .96fr;min-height:0;overflow:auto}
.sb-l{padding:clamp(26px,4vw,52px);border-right:1px solid var(--line);display:flex;flex-direction:column}
.sb-r{padding:clamp(26px,4vw,52px);display:flex;flex-direction:column}
.d-meta{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:12px;letter-spacing:.1em}
.d-cat{color:#fff;background:var(--cc);padding:4px 10px;border-radius:2px;font-size:10.5px;letter-spacing:.14em}
.d-year{color:var(--faint)}
.d-title{font-size:clamp(28px,3.6vw,46px);font-weight:600;line-height:1.04;letter-spacing:-.02em;margin-top:24px}
.d-desc{margin-top:22px;max-width:520px;color:var(--muted);font-size:16px;line-height:1.66}
.d-cta{display:flex;gap:12px;margin-top:auto;padding-top:34px;flex-wrap:wrap}
.btn-main{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;
  background:var(--accent);color:#fff;padding:13px 22px;border-radius:3px;transition:.18s}
.btn-main:hover{background:var(--accent2);color:#fff}
.btn-ghost{display:inline-flex;align-items:center;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;
  color:var(--fg);padding:13px 20px;border-radius:3px;border:1px solid var(--line2);transition:.18s}
.btn-ghost:hover{border-color:var(--accent)}

/* technical figure */
.d-fig{position:relative;border:1px solid var(--line2);border-radius:3px;height:clamp(180px,30vh,290px);
  display:grid;place-items:center;
  background:repeating-linear-gradient(45deg,transparent,transparent 9px,var(--hatch) 9px,var(--hatch) 10px)}
.d-fig::before,.d-fig::after{content:"";position:absolute;width:12px;height:12px}
.d-fig::before{top:7px;left:7px;border-top:1px solid var(--cc);border-left:1px solid var(--cc)}
.d-fig::after{bottom:7px;right:7px;border-bottom:1px solid var(--cc);border-right:1px solid var(--cc)}
.d-fig svg{width:46%;height:46%}
.d-figcap{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--faint);margin-top:10px}
/* spec table */
.spec{margin-top:26px;border-top:1px solid var(--line2)}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:15px 2px;border-bottom:1px solid var(--rule)}
.spec-row .k{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.spec-row .ln{flex:1;border-bottom:1px dotted var(--line2);transform:translateY(-3px)}
.spec-row .v{font-size:22px;font-weight:600;letter-spacing:-.01em;color:var(--fg);white-space:nowrap}
.spec-row .v small{font-family:var(--mono);font-size:12px;font-weight:400;color:var(--cc);margin-left:2px}

/* rows rest visible; staggered entrance animates FROM hidden */
.detail.on .rv{animation:rvUp .5s cubic-bezier(.2,.7,.2,1) backwards;animation-delay:calc(var(--i,0)*55ms + 140ms)}
@keyframes rvUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

@media(max-width:880px){
  .sheet{inset:12px}
  .sheet-body{grid-template-columns:1fr}
  .sb-l{border-right:none;border-bottom:1px solid var(--line)}
}
@media(prefers-reduced-motion:reduce){
  .rings .spin,.radar i{animation:none}
}