/* ═══════════════════════════════════════════════
   shared.css  —  Muhammad Ahmed Zia Portfolio
   Obsidian Nexus design system
═══════════════════════════════════════════════ */

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:#091421;color:#d9e3f7;
  font-family:'Manrope',sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:radial-gradient(circle at 2px 2px,rgba(70,241,211,.045) 1px,transparent 0);
  background-size:40px 40px;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.022;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── CSS VARS ── */
:root{
  --teal:#46f1d3;--teal-dim:#26dec2;--teal-fix:#55fbde;
  --amber:#ffb955;--amber-lo:#dc9100;
  --violet:#d8d3ff;--violet-dim:#bab4ff;
  --bg:#091421;--bg-low:#050f1c;
  --surf-lo:#121c2a;--surf:#16202e;--surf-hi:#212a39;--surf-top:#2b3544;
  --text:#d9e3f7;--sub:#bacac5;
  --line:#3b4a46;--outline:#84948f;
  --on-teal:#00382f;--on-amber:#291800;
  --ease:cubic-bezier(.4,0,.2,1);
}

/* ── SCAN LINE ── */
.scan-line{
  position:fixed;left:0;top:0;width:100%;height:1px;z-index:9998;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(70,241,211,.2),transparent);
  animation:scan 14s linear infinite;
}
@keyframes scan{0%{top:0}100%{top:100vh}}

/* ── TYPOGRAPHY ── */
.syne{font-family:'Syne',sans-serif}
.mono{font-family:'JetBrains Mono',monospace}
.label{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--teal)}
.label-sub{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--sub)}
.text-grad{
  background:linear-gradient(135deg,var(--teal) 0%,var(--teal-fix) 50%,var(--teal-dim) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.text-amber-grad{
  background:linear-gradient(135deg,var(--amber),#ff8c42);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}

/* ── LAYOUT ── */
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.page-top{padding-top:64px}
.section{padding:96px 0}

/* ── PULSE ── */
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.55)}}
.pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);animation:pulse 2s ease-in-out infinite;flex-shrink:0}

/* ── BOUNCE ── */
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(9px)}}
.bounce{animation:bounce 2.2s ease-in-out infinite}

/* ── FADE-UP ANIMS ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
.fu{animation:fadeUp .75s var(--ease) both}
.d1{animation-delay:.08s}.d2{animation-delay:.18s}.d3{animation-delay:.3s}
.d4{animation-delay:.44s}.d5{animation-delay:.58s}

/* ── SCROLL REVEAL ── */
.sr{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.sr.vis{opacity:1;transform:translateY(0)}

/* ── ORB ── */
.orb{position:absolute;border-radius:50%;filter:blur(130px);pointer-events:none}

/* ── NAV ── */
#nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(9,20,33,.9);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(70,241,211,.08);transition:background .3s;
}
#nav.scrolled{background:rgba(5,12,24,.97)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none}
.nav-avatar-wrap{display:flex;align-items:center;gap:10px}
.nav-avatar{width:34px;height:34px;border-radius:50%;border:1.5px solid rgba(70,241,211,.3);overflow:hidden;background:var(--surf-hi)}
.logo-name{font-family:'Syne',sans-serif;font-size:16px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.logo-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);animation:pulse 2s ease-in-out infinite}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-link{
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--sub);text-decoration:none;position:relative;padding-bottom:3px;transition:color .25s;
}
.nav-link::after{content:"";position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--teal);transition:width .3s var(--ease)}
.nav-link:hover,.nav-link.active{color:var(--teal)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-cta{
  font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.15em;text-transform:uppercase;
  background:var(--teal);color:var(--on-teal);padding:8px 20px;border:none;cursor:pointer;
  text-decoration:none;display:inline-flex;align-items:center;
  transition:all .3s var(--ease);
}
.nav-cta:hover{background:var(--amber);color:var(--on-amber);box-shadow:0 0 25px rgba(255,185,85,.35);transform:translateY(-1px)}
.nav-hamburger{display:none;background:none;border:none;color:var(--sub);cursor:pointer;line-height:1}
#mobile-nav{display:none;flex-direction:column;background:#0a1622;border-top:1px solid rgba(59,74,70,.4);padding:20px 24px;gap:14px}
#mobile-nav.open{display:flex}

/* ── BUTTONS ── */
.btn{
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:8px;
  transition:all .3s var(--ease);text-decoration:none;white-space:nowrap;border:none;
}
.btn-yellow{
  background:var(--amber);color:var(--on-amber);
  padding:13px 26px;border-radius:9999px;
}
.btn-yellow:hover{background:#ffc96a;box-shadow:0 0 30px rgba(255,185,85,.45);transform:translateY(-2px)}
.btn-arrow{font-size:16px;font-weight:700;line-height:1}
.btn-ghost-round{
  background:transparent;color:var(--text);
  padding:12px 26px;border-radius:9999px;
  border:1.5px solid rgba(132,148,143,.35);font-size:11px;
}
.btn-ghost-round:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-teal{background:var(--teal);color:var(--on-teal);padding:14px 32px;border-radius:4px}
.btn-teal:hover{background:var(--teal-fix);box-shadow:0 0 28px rgba(70,241,211,.3);transform:translateY(-2px)}

/* ── ICON BUTTON (round, dark) ── */
.btn-icon-round{
  width:46px;height:46px;border-radius:50%;
  background:var(--surf-hi);border:1.5px solid rgba(70,241,211,.15);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .3s;text-decoration:none;flex-shrink:0;
}
.btn-icon-round svg{color:var(--sub);transition:color .3s}
.btn-icon-round:hover{border-color:var(--amber);background:rgba(255,185,85,.12);transform:translateY(-2px)}
.btn-icon-round:hover svg{color:var(--amber)}
.btn-icon-sm{
  width:34px;height:34px;border-radius:50%;
  background:var(--surf-hi);border:1px solid rgba(70,241,211,.12);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .3s;text-decoration:none;flex-shrink:0;
}
.btn-icon-sm svg{color:var(--sub);transition:color .3s}
.btn-icon-sm:hover{border-color:var(--teal);background:rgba(70,241,211,.1)}
.btn-icon-sm:hover svg{color:var(--teal)}

/* ── CARDS ── */
.card{
  background:var(--surf);border:1px solid rgba(70,241,211,.1);border-radius:12px;
  transition:border-color .4s,box-shadow .4s,transform .4s var(--ease);
}
.card:hover{border-color:rgba(70,241,211,.28);box-shadow:0 0 35px rgba(70,241,211,.06);transform:translateY(-4px)}
.glass{
  background:rgba(22,32,46,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(70,241,211,.13);border-radius:10px;
}

/* ── CHIPS ── */
.chip{
  display:inline-flex;align-items:center;
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.06em;
  border-radius:9999px;padding:4px 12px;border:1px solid;transition:all .2s;
}
.chip-teal{border-color:rgba(70,241,211,.3);color:var(--teal)}
.chip-amber{border-color:rgba(255,185,85,.3);color:var(--amber)}
.chip-violet{border-color:rgba(186,180,255,.3);color:var(--violet-dim)}
.chip-dim{border-color:rgba(59,74,70,.5);color:var(--sub)}
.chip-dim:hover{border-color:rgba(70,241,211,.35);color:var(--teal)}

/* ── SKILL BAR ── */
.skill-track{height:3px;background:rgba(70,241,211,.1);border-radius:9999px;overflow:hidden}
.skill-fill{height:100%;background:linear-gradient(90deg,var(--teal),rgba(70,241,211,.4));border-radius:9999px;width:0;transition:width 1.6s var(--ease)}

/* ── MARQUEE TICKER ── */
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.marquee-wrap{
  overflow:hidden;
  border-top:1px solid rgba(59,74,70,.2);border-bottom:1px solid rgba(59,74,70,.2);
  padding:12px 0;background:rgba(5,15,28,.5);
}
.marquee-inner{display:flex;animation:marquee 30s linear infinite;white-space:nowrap}
.m-item{
  display:inline-flex;align-items:center;gap:10px;padding:0 30px;
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(132,148,143,.45);
}
.m-dot{width:3px;height:3px;border-radius:50%;background:var(--teal);opacity:.4;flex-shrink:0}
.m-hi{color:var(--teal);opacity:.75}

/* ── HERO ── */
.hero-section{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:60px;align-items:center}
.available-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(70,241,211,.08);border:1px solid rgba(70,241,211,.2);
  border-radius:9999px;padding:6px 16px;margin-bottom:28px;
}
.available-badge span{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--teal);letter-spacing:.12em}
.hero-title{font-size:clamp(30px,3.8vw,56px);font-weight:800;line-height:.96;letter-spacing:-.04em;margin-bottom:22px;color:var(--text)}
.hero-role{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--teal);letter-spacing:.06em;margin-bottom:12px}
.hero-bio{font-size:15px;color:var(--sub);line-height:1.7;max-width:500px;margin-bottom:34px}
.hero-btns{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:44px}
.hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:28px}
.stat-item{display:flex;flex-direction:column;gap:4px}
.stat-num{font-family:'JetBrains Mono',monospace;font-size:26px;font-weight:600;color:var(--teal)}
.stat-label{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:var(--sub);opacity:.55}
.stat-divider{width:1px;height:32px;background:rgba(59,74,70,.5)}

/* ── PHOTO FRAME ── */
.hero-right{position:relative}
.photo-halo{position:absolute;inset:-24px;background:rgba(70,241,211,.07);filter:blur(60px);border-radius:50%;pointer-events:none}
.photo-frame{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid rgba(70,241,211,.15);box-shadow:0 0 40px rgba(70,241,211,.05);
  aspect-ratio:3/4;background:#121c2a;
}
.photo-placeholder{width:100%;height:100%;position:relative;display:flex;align-items:flex-end;justify-content:center}
.photo-placeholder-label{
  position:absolute;bottom:20px;font-family:'JetBrains Mono',monospace;
  font-size:9px;color:rgba(70,241,211,.35);letter-spacing:.15em;text-transform:uppercase;
}
.photo-badge{
  position:absolute;top:14px;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:6px;
  background:rgba(9,20,33,.85);backdrop-filter:blur(8px);
  border:1px solid rgba(70,241,211,.18);border-radius:9999px;padding:5px 14px;white-space:nowrap;
}
.photo-badge span:last-child{font-family:'JetBrains Mono',monospace;font-size:9px;color:var(--teal);letter-spacing:.15em}
.photo-strip-teal{position:absolute;top:0;right:0;width:3px;height:56px;background:var(--teal)}
.photo-strip-amber{position:absolute;top:0;left:0;width:3px;height:56px;background:var(--amber)}
.photo-tag{position:absolute;bottom:-14px;left:-14px;padding:12px 18px}

/* ── SCROLL HINT ── */
.scroll-hint{
  position:absolute;bottom:24px;left:50%;
  display:flex;flex-direction:column;align-items:center;gap:4px;
  opacity:.3;
}

/* ── SECTION HEADER ── */
.section-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:48px;flex-wrap:wrap;gap:16px}
.section-title{font-size:clamp(30px,4vw,48px);font-weight:700;letter-spacing:-.02em}

/* ── PROJECTS ── */
.proj-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.proj-card{padding:0;overflow:hidden;cursor:pointer}
.proj-thumb{height:220px;position:relative;overflow:hidden;flex-shrink:0}
.proj-thumb-strip{position:absolute;top:0;left:0;width:3px;height:52px}
.proj-thumb-fade{position:absolute;bottom:0;left:0;right:0;height:56px;background:linear-gradient(to top,var(--surf),transparent)}
.proj-body{padding:28px}
.proj-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}
.proj-name{font-size:20px;font-weight:700;color:var(--text)}
.proj-sub{font-size:10px;margin-bottom:10px;display:block}
.proj-desc{color:var(--sub);font-size:14px;line-height:1.65;margin-bottom:18px}
.proj-chips{display:flex;flex-wrap:wrap;gap:6px}

/* ── SKILLS ── */
.skills-section{background:rgba(5,15,28,.4)}
.skill-group{margin-bottom:48px}
.skill-group:last-child{margin-bottom:0}
.skill-group-header{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.skill-group-title{font-size:20px;font-weight:700;color:var(--text)}
.skill-hr{flex:1;height:1px}
.skill-hr.teal{background:linear-gradient(90deg,rgba(70,241,211,.22),transparent)}
.skill-hr.amber{background:linear-gradient(90deg,rgba(255,185,85,.22),transparent)}
.skill-hr.violet{background:linear-gradient(90deg,rgba(186,180,255,.22),transparent)}
.lang-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.skill-bar-card{padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.skill-bar-row{display:flex;justify-content:space-between;align-items:center}
.skill-name{font-size:13px;color:var(--text)}
.skill-pct{font-size:11px}
.fw-grid{display:flex;flex-wrap:wrap;gap:10px}
.fw-card{padding:14px 20px;display:flex;align-items:center;gap:10px;cursor:default}
.fw-icon{font-size:17px}
.fw-icon.teal{color:var(--teal)}
.fw-icon.amber{color:var(--amber)}
.fw-icon.violet{color:var(--violet-dim)}
.fw-icon.dim{color:var(--sub)}
.fw-name{font-size:13px;color:var(--text)}
.db-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.db-card{padding:24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;cursor:default}
.db-icon{font-size:30px}
.db-name{font-size:12px;color:var(--text)}
.platform-wrap{display:flex;flex-wrap:wrap;gap:10px}
.platform-chip{padding:8px 18px;font-size:12px}

/* ── PAGE HEADER (inner pages) ── */
.page-header{
  padding:110px 0 56px;
  border-bottom:1px solid rgba(59,74,70,.3);
  position:relative;overflow:hidden;
}
.page-header .label{display:block;margin-bottom:14px}
.page-header h1{font-family:'Syne',sans-serif;font-size:clamp(38px,6vw,72px);font-weight:800;line-height:.95;letter-spacing:-.03em}

/* ── TIMELINE ── */
.timeline{position:relative;padding-left:32px}
.timeline-spine{position:absolute;left:0;top:0;width:1px;height:100%;background:linear-gradient(to bottom,var(--teal),transparent);opacity:.22}
.timeline-dot{position:absolute;left:-9px;top:4px;width:18px;height:18px;border-radius:50%;border:3px solid var(--bg)}
.timeline-entry{position:relative;margin-bottom:40px}
.timeline-entry:last-child{margin-bottom:0}

/* ── FORM FIELDS ── */
.field{
  width:100%;background:#0e1b29;border:1px solid rgba(59,74,70,.5);
  color:var(--text);font-family:'JetBrains Mono',monospace;font-size:13px;
  padding:12px 16px;outline:none;border-radius:4px;
  transition:border-color .3s,box-shadow .3s;
}
.field:focus{border-color:var(--teal);box-shadow:0 0 0 1px rgba(70,241,211,.18)}
.field::placeholder{color:rgba(132,148,143,.42)}
.field-label{
  font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.15em;text-transform:uppercase;
  color:rgba(132,148,143,.6);display:block;margin-bottom:8px;
}
select.field{cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23bacac5' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px;
}

/* ── FOOTER ── */
footer{border-top:1px solid rgba(59,74,70,.3);padding:48px 0 32px}
.footer-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;margin-bottom:24px}
.footer-brand{font-family:'Syne',sans-serif;font-size:16px;font-weight:800;color:var(--text)}
.footer-links{display:flex;gap:24px;flex-wrap:wrap}
.footer-link{color:var(--sub);text-decoration:none;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;transition:color .2s}
.footer-link:hover{color:var(--teal)}
.footer-copy{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--sub);opacity:.45}
.footer-status{display:flex;align-items:center;gap:7px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid rgba(59,74,70,.3);padding-top:20px}

/* ── SCROLLBAR ── */
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--teal-dim)}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr!important}
  #hero-photo{display:none}
}
@media(max-width:768px){
  #desknav,.nav-right{display:none!important}
  .nav-hamburger{display:block!important}
  .section{padding:64px 0}
  .container{padding:0 16px}
  .proj-grid{grid-template-columns:1fr!important}
  .lang-grid{grid-template-columns:1fr 1fr!important}
  .db-grid{grid-template-columns:1fr 1fr!important}
  .section-header{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .lang-grid{grid-template-columns:1fr!important}
  .hero-btns{gap:10px}
  .btn-yellow{padding:11px 20px;font-size:11px}
}