/* =========================================================
   Mehdi Askari — Portfolio
   Design concept: a Network Operations Center wall display.
   Token system below; every color has a semantic job.
   ========================================================= */

:root{
  /* -- Void / Panels -- */
  --void:        #0A0F1A;
  --void-2:      #0D1422;
  --panel:       rgba(255,255,255,0.035);
  --panel-solid: #121A2B;
  --line:        rgba(255,255,255,0.09);
  --line-soft:   rgba(255,255,255,0.05);

  /* -- Ink -- */
  --ink:      #EDF2FB;
  --ink-dim:  #A6B2C6;
  --muted:    #6E7D96;
  --faint:    #414E64;

  /* -- Domain accents (also used in the topology diagram & status strip) -- */
  --network:    #43D9E8;  /* cyan   — Networking          */
  --directory:  #9B8CFF;  /* violet — Directory Services  */
  --mail:       #FF7AA8;  /* rose   — Email & Messaging   */
  --monitoring: #FFB648;  /* amber  — Monitoring          */
  --status:     #33D693;  /* green  — availability/status */

  --network-dim:    rgba(67,217,232,0.12);
  --directory-dim:  rgba(155,140,255,0.12);
  --mail-dim:       rgba(255,122,168,0.12);
  --monitoring-dim: rgba(255,182,72,0.12);
  --status-dim:     rgba(51,214,147,0.14);

  --display: 'Sora', ui-sans-serif, sans-serif;
  --body:    'Manrope', ui-sans-serif, sans-serif;
  --mono:    'Space Mono', ui-monospace, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  margin:0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--body);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

::selection{ background: var(--network); color:#04141A; }
a{ color:inherit; }
img{ display:block; max-width:100%; }

/* faint noise + vignette for depth */
body::before{
  content:"";
  position:fixed; inset:0;
  background:
    radial-gradient(ellipse 60% 40% at 15% 0%, rgba(67,217,232,0.10), transparent 60%),
    radial-gradient(ellipse 50% 40% at 100% 10%, rgba(155,140,255,0.08), transparent 60%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(255,122,168,0.06), transparent 60%);
  pointer-events:none;
  z-index:0;
}

.wrap{ max-width:1160px; margin:0 auto; padding:0 30px; position:relative; z-index:1; }

h1,h2,h3{ font-family:var(--display); font-weight:700; letter-spacing:-0.01em; margin:0; }
code,.mono{ font-family:var(--mono); }

.eyebrow{
  font-family:var(--mono); font-size:12px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--network); display:inline-flex; align-items:center; gap:9px;
}
.eyebrow::before{
  content:""; width:7px; height:7px; border-radius:50%;
  background:var(--network); box-shadow:0 0 0 4px var(--network-dim), 0 0 10px var(--network);
}

/* =================== NAV =================== */
.nav{
  position:sticky; top:0; z-index:80;
  background:rgba(10,15,26,0.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, background .25s ease;
}
.nav.scrolled{ border-color:var(--line); background:rgba(10,15,26,0.86); }
.nav-inner{ display:flex; align-items:center; justify-content:space-between; padding:18px 30px; max-width:1160px; margin:0 auto; }
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink); font-family:var(--display); font-weight:700; font-size:17px; }
.brand .mark{
  width:30px; height:30px; border-radius:9px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg, var(--network), var(--directory));
  color:#04141A; font-family:var(--mono); font-weight:700; font-size:12px;
}
.nav-links{ display:flex; gap:30px; list-style:none; margin:0; padding:0; }
.nav-links a{ text-decoration:none; color:var(--ink-dim); font-size:14.5px; font-weight:500; transition:color .15s ease; }
.nav-links a:hover{ color:var(--network); }
.nav-cta{ display:flex; align-items:center; gap:14px; }
.btn{
  font-family:var(--mono); font-size:13px; font-weight:500;
  padding:10px 18px; border-radius:9px; border:1px solid var(--line);
  background:var(--panel); color:var(--ink); text-decoration:none; cursor:pointer;
  display:inline-flex; align-items:center; gap:8px;
  transition:border-color .18s ease, transform .18s ease, background .18s ease;
}
.btn:hover{ border-color:var(--network); transform:translateY(-1px); }
.btn-solid{ background:linear-gradient(135deg, var(--network), #2FB9C8); color:#04141A; border-color:transparent; font-weight:700; }
.btn-solid:hover{ filter:brightness(1.08); }

.nav-toggle{ display:none; width:38px; height:38px; border-radius:8px; border:1px solid var(--line); background:var(--panel); cursor:pointer; align-items:center; justify-content:center; }
.nav-toggle span{ position:relative; width:16px; height:2px; background:var(--ink); display:block; }
.nav-toggle span::before,.nav-toggle span::after{ content:""; position:absolute; left:0; width:16px; height:2px; background:var(--ink); transition:transform .2s ease; }
.nav-toggle span::before{ top:-5px; } .nav-toggle span::after{ top:5px; }

/* =================== HERO =================== */
.hero{ position:relative; padding:110px 0 60px; overflow:hidden; }
.hero-glow{
  position:absolute; inset:-10% -10% auto -10%; height:600px; z-index:0; pointer-events:none;
  background: radial-gradient(480px circle at var(--mx,50%) var(--my,20%), rgba(67,217,232,0.14), transparent 60%);
  transition: background .1s ease;
}
.hero-grid{ display:grid; grid-template-columns:1.05fr 0.95fr; gap:40px; align-items:center; position:relative; z-index:1; }

.hero h1{ font-size:clamp(36px,5.4vw,58px); line-height:1.06; margin:20px 0 22px; }
.hero h1 .hl{
  background:linear-gradient(90deg, var(--network), var(--directory));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lede{ font-size:17.5px; color:var(--ink-dim); max-width:48ch; margin:0 0 30px; }

.chip-row{ display:flex; gap:12px; flex-wrap:wrap; }

/* =================== TOPOLOGY DIAGRAM =================== */
.topology{ position:relative; }
.topology svg{ width:100%; height:auto; overflow:visible; }
.ring{ animation: spin 40s linear infinite; transform-origin:260px 260px; }
@keyframes spin{ to{ transform:rotate(360deg); } }
.node-label{ font-family:var(--mono); font-size:11px; fill:var(--ink-dim); }
.hub-pulse{ animation:pulse 2.6s ease-in-out infinite; transform-origin:260px 260px; }
@keyframes pulse{ 0%,100%{ opacity:.55; transform:scale(1);} 50%{ opacity:0; transform:scale(1.5);} }

/* svg color utilities (var() in raw SVG attributes is unreliable, so route through classes) */
.fill-void{ fill:var(--void-2); }
.fill-ink{ fill:var(--ink); }
.fill-network{ fill:var(--network); } .stroke-network{ stroke:var(--network); }
.fill-directory{ fill:var(--directory); } .stroke-directory{ stroke:var(--directory); }
.fill-mail{ fill:var(--mail); } .stroke-mail{ stroke:var(--mail); }
.fill-monitoring{ fill:var(--monitoring); } .stroke-monitoring{ stroke:var(--monitoring); }
.stroke-line{ stroke:var(--line); }
.node-text{ font-family:var(--mono); }

/* =================== STATUS STRIP =================== */
.status-strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:rgba(255,255,255,0.02); position:relative; z-index:1; }
.status-inner{ display:flex; align-items:center; gap:30px; padding:18px 0; overflow-x:auto; }
.status-tag{ font-family:var(--mono); font-size:11px; color:var(--muted); text-transform:uppercase; letter-spacing:.08em; white-space:nowrap; }
.status-item{ display:flex; align-items:center; gap:9px; white-space:nowrap; }
.status-item .dot{ width:8px; height:8px; border-radius:50%; flex-shrink:0; }
.status-item span{ font-family:var(--mono); font-size:13px; color:var(--ink-dim); }

/* =================== SECTIONS =================== */
section{ padding:100px 0; position:relative; z-index:1; opacity:0; transform:translateY(26px); transition:opacity .6s ease, transform .6s ease; }
section.visible{ opacity:1; transform:translateY(0); }
.section-head{ max-width:620px; margin-bottom:50px; }
.section-head h2{ font-size:clamp(26px,3.4vw,38px); margin:16px 0 14px; }
.section-head p{ color:var(--muted); font-size:15.5px; }

/* =================== ABOUT =================== */
.about-wrap{ display:grid; grid-template-columns:230px 1fr; gap:50px; align-items:start; }
.about-badge{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:26px; text-align:center; position:sticky; top:100px;
}
.about-badge img{
  width:132px; height:132px; border-radius:50%; margin:0 auto 16px; object-fit:cover;
  border:2px solid var(--void); box-shadow:0 0 0 3px var(--network), 0 0 24px rgba(67,217,232,0.35);
}
.about-badge .ab-name{ font-family:var(--display); font-weight:700; font-size:15px; color:var(--ink); }
.about-badge .ab-role{ font-family:var(--mono); font-size:11px; color:var(--muted); letter-spacing:.06em; margin-top:4px; }
.about-badge hr{ border:none; border-top:1px dashed var(--line); margin:16px 0; }
.about-badge .ab-meta{ font-family:var(--mono); font-size:11.5px; color:var(--ink-dim); }
.pull-quote{
  font-family:var(--display); font-weight:600; font-size:clamp(20px,2.4vw,27px); line-height:1.4;
  color:var(--ink); border-left:3px solid var(--network); padding-left:24px; margin:0 0 26px;
}
.about-copy p{ font-size:16px; color:var(--ink-dim); margin:0 0 16px; }

/* =================== DOMAIN CARDS =================== */
.domains{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.domain{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:28px 24px; position:relative; overflow:hidden;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.domain:hover{ transform:translateY(-4px); background:rgba(255,255,255,0.055); }
.domain .d-icon{ width:44px; height:44px; border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; }
.domain .d-icon svg{ width:22px; height:22px; }
.domain h3{ font-size:16px; margin-bottom:10px; }
.domain p{ font-size:13.5px; color:var(--muted); margin:0; line-height:1.6; }
.domain.c-network .d-icon{ background:var(--network-dim); color:var(--network); }
.domain.c-directory .d-icon{ background:var(--directory-dim); color:var(--directory); }
.domain.c-mail .d-icon{ background:var(--mail-dim); color:var(--mail); }
.domain.c-monitoring .d-icon{ background:var(--monitoring-dim); color:var(--monitoring); }
.domain:hover.c-network{ border-color:rgba(67,217,232,0.4); }
.domain:hover.c-directory{ border-color:rgba(155,140,255,0.4); }
.domain:hover.c-mail{ border-color:rgba(255,122,168,0.4); }
.domain:hover.c-monitoring{ border-color:rgba(255,182,72,0.4); }

/* =================== PROJECT (xping) =================== */
.project-card{
  display:grid; grid-template-columns:1fr 1fr; gap:0;
  background:var(--panel-solid); border:1px solid var(--line); border-radius:var(--radius-lg);
  overflow:hidden;
}
.project-copy{ padding:44px; display:flex; flex-direction:column; justify-content:center; gap:16px; }
.project-tag{ display:inline-flex; align-items:center; gap:8px; font-family:var(--mono); font-size:11px; color:var(--network); text-transform:uppercase; letter-spacing:.1em; }
.project-copy h3{ font-size:26px; }
.project-copy p{ color:var(--ink-dim); font-size:15px; margin:0; }
.project-links{ display:flex; gap:12px; margin-top:6px; }
.project-term{ background:#0B111C; padding:30px; font-family:var(--mono); font-size:12.5px; border-left:1px solid var(--line); display:flex; flex-direction:column; justify-content:center; }
.project-term .pt-bar{ display:flex; gap:6px; margin-bottom:16px; }
.project-term .pt-bar span{ width:9px; height:9px; border-radius:50%; }
.project-term .pt1{ background:#FF7AA8; } .project-term .pt2{ background:#FFB648; } .project-term .pt3{ background:#43D9E8; }
.project-term div.line{ color:var(--ink-dim); margin-bottom:5px; white-space:pre; }
.project-term .g{ color:var(--network); } .project-term .m{ color:var(--muted); } .project-term .h{ color:var(--ink); }

/* =================== TOOLKIT =================== */
.toolkit{ display:flex; flex-wrap:wrap; gap:10px; }
.tool-tag{
  font-family:var(--mono); font-size:13px; color:var(--ink-dim);
  border:1px solid var(--line); border-radius:20px; padding:9px 16px;
  background:var(--panel);
}

/* =================== CONTACT =================== */
.contact-wrap{ display:grid; grid-template-columns:1.15fr 0.85fr; gap:44px; align-items:start; }
.contact-wrap > p{ font-size:16.5px; color:var(--ink-dim); max-width:48ch; margin:0 0 30px; }
.big-email{
  font-family:var(--display); font-size:clamp(24px,3.4vw,36px); font-weight:700;
  color:var(--ink); text-decoration:none; display:inline-block; position:relative; margin-bottom:8px;
}
.big-email::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px;
  background:linear-gradient(90deg, var(--network), var(--directory));
  transform:scaleX(0); transform-origin:left; transition:transform .3s ease;
}
.big-email:hover::after{ transform:scaleX(1); }
.contact-meta{ font-family:var(--mono); font-size:13px; color:var(--muted); margin-bottom:36px; }

.social-panel{ background:var(--panel); border:1px solid var(--line); border-radius:var(--radius-lg); padding:28px; }
.social-panel .s-label{ font-family:var(--mono); font-size:11px; color:var(--muted); text-transform:uppercase; letter-spacing:.08em; margin-bottom:20px; display:block; }
.social-links{ display:flex; gap:10px; margin-bottom:24px; }
.social-links a{
  width:46px; height:46px; border-radius:11px; border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center; text-decoration:none; color:var(--ink-dim);
  transition:all .18s ease;
}
.social-links a:hover{ background:var(--network); border-color:var(--network); color:#04141A; transform:translateY(-2px); }
.social-links svg{ width:19px; height:19px; }
.avail{ display:flex; align-items:center; gap:9px; font-family:var(--mono); font-size:12.5px; color:var(--status); }
.avail .dot{ width:7px; height:7px; border-radius:50%; background:var(--status); box-shadow:0 0 0 4px var(--status-dim), 0 0 8px var(--status); }

/* =================== FOOTER =================== */
footer{ border-top:1px solid var(--line); padding:40px 0; position:relative; z-index:1; }
.footer-inner{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px; }
footer .f-left{ font-family:var(--mono); font-size:12.5px; color:var(--muted); }
footer .f-right{ font-family:var(--mono); font-size:12.5px; color:var(--faint); }

/* =================== BACK TO TOP =================== */
.totop{
  position:fixed; right:24px; bottom:24px; width:46px; height:46px; border-radius:50%;
  background:var(--panel-solid); border:1px solid var(--line); color:var(--ink-dim);
  display:flex; align-items:center; justify-content:center; text-decoration:none;
  opacity:0; transform:translateY(10px) scale(.9); pointer-events:none;
  transition:all .25s ease; z-index:70; backdrop-filter:blur(8px);
}
.totop.show{ opacity:1; transform:translateY(0) scale(1); pointer-events:auto; }
.totop:hover{ border-color:var(--network); color:var(--network); }
.totop svg{ width:18px; height:18px; }

/* =================== RESPONSIVE =================== */
@media (max-width:960px){
  .hero-grid{ grid-template-columns:1fr; }
  .about-wrap{ grid-template-columns:1fr; }
  .about-badge{ position:static; max-width:260px; margin:0 auto; }
  .domains{ grid-template-columns:repeat(2,1fr); }
  .project-card{ grid-template-columns:1fr; }
  .project-term{ border-left:none; border-top:1px solid var(--line); }
  .contact-wrap{ grid-template-columns:1fr; }
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-links.open{
    display:flex; flex-direction:column; position:absolute; top:100%; left:0; right:0;
    background:rgba(10,15,26,0.97); border-bottom:1px solid var(--line); padding:20px 30px; gap:18px;
  }
}
@media (max-width:560px){
  .domains{ grid-template-columns:1fr; }
  .wrap{ padding:0 20px; }
  .hero{ padding:74px 0 40px; }
  section{ padding:64px 0; }
  .project-copy{ padding:30px; }
  .project-term{ padding:24px; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
}

:focus-visible{ outline:2px solid var(--network); outline-offset:2px; }