/* ══════════════════════════════════════════════════════
   BASIL SERMINI · style.css  — 2026 Interactive Redesign
   ══════════════════════════════════════════════════════ */

/* ── Reset & Base ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;scroll-padding-top:5.5rem;}
body{font-family:'Inter',sans-serif;line-height:1.65;overflow-x:hidden;}
img{display:block;max-width:100%;height:auto;}
a{text-decoration:none;color:inherit;}
button{cursor:pointer;border:none;background:none;font-family:inherit;}
ul{list-style:none;}
input,textarea{font-family:'Inter',sans-serif;}

/* ── CSS Custom Properties ── */
:root{
  --bg:#F7F9FC;--bg2:#FFFFFF;--bg3:#E8F4F3;
  --text:#111111;--muted:#6B7280;--border:rgba(0,0,0,0.09);
  --accent:#004943;--accent2:#331B00;--accent-mix:#004943;
  --radius:16px;--radius-sm:10px;
  --shadow:0 4px 24px rgba(0,0,0,.07);
  --shadow-lg:0 16px 48px rgba(0,0,0,.12);
  --tr:all .25s cubic-bezier(.4,0,.2,1);
  --nav-height:70px;
  --section-pad:100px 6%;
}
[data-theme="dark"]{
  --bg:#0B0B14;--bg2:#12121E;--bg3:#191929;
  --text:#E8E8F2;--muted:#9CA3AF;--border:rgba(255,255,255,0.08);
  --shadow:0 4px 24px rgba(0,0,0,.3);
  --shadow-lg:0 16px 48px rgba(0,0,0,.4);
}

/* ── Cursor (desktop only) ── */
@media(hover:hover){
  body{cursor:none;}
  #cursor-outer{
    position:fixed;pointer-events:none;z-index:9999;
    width:38px;height:38px;border-radius:50%;
    border:2px solid var(--accent);opacity:.55;
    top:0;left:0;transform:translate(-50%,-50%);
    transition:width .2s,height .2s,opacity .2s,border-color .2s;
  }
  #cursor-dot{
    position:fixed;pointer-events:none;z-index:9999;
    width:7px;height:7px;border-radius:50%;
    background:var(--accent);
    top:0;left:0;transform:translate(-50%,-50%);
  }
  #cursor-outer.hov{width:56px;height:56px;opacity:.3;}
}
@media(hover:none){#cursor-outer,#cursor-dot{display:none;}}
@media(max-width:900px){#cursor-outer,#cursor-dot{display:none;}}

/* ── Scroll Progress ── */
#scroll-progress{
  position:fixed;top:0;left:0;height:3px;z-index:2000;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  width:0;transition:width .05s linear;
}

/* ── Navbar ── */
#navbar{
  position:fixed;top:1.25rem;left:50%;transform:translateX(-50%);
  z-index:900;width:calc(100% - 3rem);max-width:1120px;
}
.nav-inner{
  display:flex;align-items:center;gap:1rem;
  background:rgba(0,0,0,.38);backdrop-filter:blur(20px) saturate(180%);
  border:1px solid rgba(255,255,255,.12);border-radius:50px;
  padding:.5rem .75rem .5rem 1.25rem;
  box-shadow:0 8px 32px rgba(0,0,0,.2);
  transition:background .35s,border-color .35s,box-shadow .35s;
}
#navbar.nav-scrolled .nav-inner{
  background:rgba(249,248,245,.9);border-color:rgba(0,0,0,.08);
  box-shadow:0 8px 40px rgba(0,0,0,.1);
}
[data-theme="dark"] #navbar.nav-scrolled .nav-inner{
  background:rgba(11,11,20,.92);border-color:rgba(255,255,255,.08);
}
.nav-logo{
  font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.1rem;
  color:#fff;letter-spacing:.02em;flex-shrink:0;
  transition:color .3s;
}
.nav-logo span{color:var(--accent);}
#navbar.nav-scrolled .nav-logo{color:var(--text);}
.nav-links{
  display:flex;align-items:center;gap:.15rem;flex:1;justify-content:center;
}
.nav-link{
  font-family:'Space Grotesk',sans-serif;font-size:.82rem;font-weight:600;
  color:rgba(255,255,255,.72);padding:.4rem .75rem;border-radius:50px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  transition:color .25s,background .25s,border-color .25s;white-space:nowrap;
}
.nav-link:hover,.nav-link.active{color:#fff;background:radial-gradient(circle, rgba(255,255,255,.18) 0%, rgba(255,255,255,0) 70%);border-color:rgba(255,255,255,.18);}
#navbar.nav-scrolled .nav-link{color:var(--muted);background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.07);}
#navbar.nav-scrolled .nav-link:hover,#navbar.nav-scrolled .nav-link.active{
  color:var(--accent);background:radial-gradient(circle, rgba(0,73,67,.2) 0%, rgba(0,73,67,0) 70%);border-color:rgba(0,73,67,.2);
}
.nav-actions{display:flex;align-items:center;gap:.5rem;flex-shrink:0;margin-left:auto;}
#themeToggle{
  width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.8);font-size:.9rem;transition:var(--tr);background:rgba(255,255,255,.1);
}
#themeToggle:hover{background:rgba(255,255,255,.2);}
#navbar.nav-scrolled #themeToggle{color:var(--muted);background:var(--bg3);}
.hamburger{
  display:none;flex-direction:column;gap:5px;padding:.5rem;
  width:34px;height:34px;justify-content:center;align-items:center;
}
.hamburger span{display:block;width:20px;height:2px;background:rgba(255,255,255,.8);border-radius:2px;transition:var(--tr);}
#navbar.nav-scrolled .hamburger span{background:var(--text);}

/* ── Mobile Overlay ── */
.mob-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(0,0,0,.95);backdrop-filter:blur(20px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .3s;
}
.mob-overlay.open{opacity:1;pointer-events:all;}
.mob-overlay-close{
  position:absolute;top:1.5rem;right:1.5rem;
  color:#fff;font-size:1.4rem;padding:.5rem;
}
.mob-overlay-nav{display:flex;flex-direction:column;gap:.1rem;width:min(300px,80vw);}
.mob-nav-link{
  position:relative;
  display:block;
  font-family:'Space Grotesk',sans-serif;font-size:2rem;font-weight:700;
  color:rgba(255,255,255,.72);
  padding:.55rem 1.2rem;
  transition:color .22s;
}
.mob-nav-link::before{
  content:attr(data-sym);
  position:absolute;top:50%;transform:translateY(-50%);
  font-family:'Space Mono',monospace;font-size:4.5rem;font-weight:700;
  color:rgba(0,210,165,.1);
  transition:color .22s;pointer-events:none;line-height:1;
}
.mob-nav-link:nth-child(odd)::before{left:-.4rem;}
.mob-nav-link:nth-child(even)::before{right:-.4rem;}
.mob-nav-link:hover{color:#fff;}
.mob-nav-link:hover::before{color:rgba(0,210,165,.28);}

/* ── Mobile Bottom Bar — always dark glass, like top nav ── */
.mob-bottom-bar{
  display:none;position:fixed;
  bottom:1.2rem;left:50%;transform:translateX(-50%);
  z-index:800;
  /* Same dark-glass DNA as .nav-inner — works on any background */
  background:rgba(0,0,0,.65);
  backdrop-filter:blur(24px) saturate(120%);-webkit-backdrop-filter:blur(24px) saturate(120%);
  border:1px solid rgba(255,255,255,.1);
  border-radius:2rem;padding:.32rem .38rem;gap:.05rem;
  box-shadow:
    0 0 22px 3px rgba(0,210,165,.48),
    0 0 55px 8px rgba(0,210,165,.22),
    0 0 100px 16px rgba(0,210,165,.1),
    0 12px 40px rgba(0,0,0,.65);
  width:max-content;
  will-change:transform;
}
.mob-bottom-bar::before{
  content:'';position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(ellipse 90% 65% at 50% 115%, rgba(0,210,165,.3) 0%, transparent 58%);
  pointer-events:none;
}
.mbb-tab{
  display:flex;flex-direction:column;align-items:center;gap:.18rem;
  padding:.44rem .46rem;border-radius:1.6rem;
  font-family:'Space Grotesk',sans-serif;
  font-size:.52rem;font-weight:700;color:rgba(255,255,255,.6);letter-spacing:.07em;
  text-transform:uppercase;
  transition:color .22s,background .22s,transform .18s;
  position:relative;-webkit-tap-highlight-color:transparent;
}
.mbb-tab i{font-size:.85rem;transition:transform .22s;}
.mbb-tab::before{
  content:attr(data-sym);
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  font-family:'Space Mono',monospace;font-size:1.6rem;font-weight:700;
  color:rgba(0,210,165,0);text-shadow:none;
  transition:color .28s,text-shadow .28s;
  pointer-events:none;line-height:1;z-index:0;
}
.mbb-tab.active{color:rgba(0,210,165,1);background:radial-gradient(circle, rgba(0,210,165,.25) 0%, rgba(0,210,165,0) 70%);}
.mbb-tab.active i{transform:translateY(-2px);}
.mbb-tab.active::before{
  color:rgba(0,210,165,.18);
  filter:blur(1px);
  text-shadow:none;
}
.mbb-tab:active{animation:mbbTap .22s ease;}
@keyframes mbbTap{0%{transform:scale(1);}40%{transform:scale(.86);}100%{transform:scale(1);}}

/* ── Hero ── */
#hero{
  position:relative;min-height:100vh;
  background:#080812;overflow:hidden;
  display:flex;flex-direction:column;justify-content:center;
}
#mathCanvas{position:absolute;inset:0;width:100%;height:100%;}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(8,8,18,.75) 0%,rgba(8,8,18,.45) 100%);
}
.hero-content{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr auto;gap:4rem;align-items:center;
  padding:6rem 8% 5rem;max-width:1300px;width:100%;margin:0 auto;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:rgba(255,255,255,.6);margin-bottom:1.5rem;
}
.live-dot{
  width:8px;height:8px;border-radius:50%;background:#22c55e;flex-shrink:0;
  animation:pulse-green 2s ease-in-out infinite;
}
@keyframes pulse-green{0%,100%{box-shadow:0 0 0 0 rgba(0,73,67,.4);}50%{box-shadow:0 0 0 6px rgba(0,73,67,0);}}
.hero-name{
  font-family:'Space Grotesk',sans-serif;font-weight:800;line-height:.9;
  font-size:clamp(3.5rem,9vw,8.5rem);color:#fff;
  margin-bottom:1.5rem;overflow:hidden;
}
.name-row{display:block;overflow:hidden;}
.name-inner{
  display:block;
  transform:translateY(105%);opacity:0;
  transition:transform .9s cubic-bezier(.16,1,.3,1),opacity .5s;
}
.name-row-2 .name-inner{transition-delay:.15s;}
.hero-name.anim .name-inner{transform:translateY(0);opacity:1;}
.hero-role{
  font-family:'Space Grotesk',sans-serif;font-size:1.05rem;font-weight:500;
  color:rgba(255,255,255,.65);margin-bottom:1rem;
  display:flex;align-items:center;gap:.35rem;flex-wrap:nowrap;
}
.tw-wrap{display:inline-flex;align-items:center;gap:0;white-space:nowrap;}
@media(max-width:620px){
  .hero-role{flex-direction:column;align-items:flex-start;gap:.2rem;}
  .tw-wrap{white-space:nowrap;}
}
.typewriter-text{color:var(--accent);font-weight:700;}
.tw-cursor{color:var(--accent);animation:blink .9s step-end infinite;}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:0;}}
.hero-tagline{
  font-size:1rem;color:rgba(255,255,255,.5);max-width:460px;
  line-height:1.7;margin-bottom:2.5rem;
}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;}
.btn-hero-primary{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.9rem 2rem;border-radius:50px;font-weight:700;font-size:.92rem;
  background:linear-gradient(135deg,var(--accent),var(--accent-mix));
  color:#fff;box-shadow:0 8px 32px rgba(0,73,67,.4);
  transition:transform .25s,box-shadow .25s;
}
.btn-hero-primary:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,73,67,.5);}
.btn-hero-ghost{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.9rem 2rem;border-radius:50px;font-weight:700;font-size:.92rem;
  color:rgba(255,255,255,.85);border:1.5px solid rgba(255,255,255,.2);
  transition:var(--tr);
}
.btn-hero-ghost:hover{border-color:rgba(255,255,255,.6);color:#fff;}
/* Photo */
.hero-right{position:relative;}
.hero-photo-wrap{position:relative;width:260px;}
.hero-photo-ring{
  width:260px;height:260px;border-radius:50%;
  border:3px solid rgba(0,73,67,.6);
  box-shadow:0 0 0 12px rgba(0,73,67,.1),0 0 60px rgba(0,73,67,.2);
  overflow:hidden;
}
.hero-photo{width:100%;height:100%;object-fit:cover;object-position:top;}
.photo-badge{
  position:absolute;display:flex;align-items:center;gap:.5rem;
  background:rgba(255,255,255,.1);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.2);border-radius:50px;
  padding:.45rem 1rem;font-size:.75rem;color:rgba(255,255,255,.85);font-weight:600;
  white-space:nowrap;
}
.pb-a{top:10%;right:-30%;animation:float-badge 4s ease-in-out infinite;}
.pb-b{bottom:18%;right:-25%;animation:float-badge 5s ease-in-out infinite .7s;}
.pb-c{top:50%;left:-40%;animation:float-badge 4.5s ease-in-out infinite 1.2s;}
@keyframes float-badge{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}
/* Stats bar */
.hero-stats-bar{
  position:absolute;bottom:0;left:0;right:0;z-index:3;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.08);padding:1.4rem 0;
}
.h-stat{text-align:center;padding:0 3.5rem;}
.h-sep{width:1px;height:44px;background:rgba(255,255,255,.12);}
.h-stat-n{
  font-family:'Space Grotesk',sans-serif;font-size:2rem;font-weight:800;
  color:#fff;line-height:1;display:flex;align-items:baseline;justify-content:center;gap:.1rem;
}
.h-plus{font-size:1.4rem;color:var(--accent);}
.h-stat-l{font-size:.68rem;color:rgba(255,255,255,.45);letter-spacing:.1em;text-transform:uppercase;margin-top:.3rem;}
.scroll-cue{
  position:absolute;bottom:6.5rem;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  color:rgba(255,255,255,.35);animation:sc-bounce 2.2s ease-in-out infinite;
}
.sc-line{width:1px;height:40px;background:linear-gradient(to bottom,transparent,rgba(255,255,255,.35));}
@keyframes sc-bounce{0%,100%{transform:translateX(-50%) translateY(0);}50%{transform:translateX(-50%) translateY(7px);}}

/* ── Section Shared ── */
section{padding:var(--section-pad);background:var(--bg);}
.container{max-width:1100px;margin:0 auto;}
.section-head{text-align:center;margin-bottom:4rem;}
.section-label{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);
  background:rgba(0,73,67,.1);border:1px solid rgba(0,73,67,.2);
  padding:.3rem .9rem;border-radius:50px;margin-bottom:1rem;
}
.section-title{font-family:'Space Grotesk',sans-serif;font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1.15;color:var(--text);}
.grad{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.section-desc{font-size:1rem;color:var(--muted);max-width:560px;margin:.9rem auto 0;line-height:1.7;}

/* ── Mathematical Styling ── */
/* Graph-paper background for alternating sections */
#about,#skills,#expertise,#contact{
  background-image:
    linear-gradient(rgba(0,73,67,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,73,67,.09) 1px,transparent 1px);
  background-size:40px 40px;
}
[data-theme="dark"] #about,
[data-theme="dark"] #skills,
[data-theme="dark"] #expertise,
[data-theme="dark"] #contact{
  background-image:
    linear-gradient(rgba(0,210,165,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,210,165,.1) 1px,transparent 1px);
  background-size:40px 40px;
}
/* Math symbol float on section-head */
.section-head{position:relative;}
.section-head::before{
  content:attr(data-sym);
  position:absolute;right:-2rem;top:-1.5rem;
  font-family:'Space Mono',monospace;font-size:6rem;font-weight:700;
  color:var(--accent);opacity:.16;line-height:1;pointer-events:none;
  user-select:none;
  animation:mathSymFloat 6s ease-in-out infinite;
}
@keyframes mathSymFloat{
  0%,100%{transform:translateY(0) scale(1);}
  50%{transform:translateY(-10px) scale(1.07);}
}
/* Math section labels with prefix symbol */
.section-label::before{
  content:attr(data-sym) ' ';
  font-family:'Space Mono',monospace;font-weight:700;opacity:.7;
}
/* Section numbers in monospace */
.phil-num{font-family:'Space Mono',monospace;}
/* Formula band in hero */
.hero-stats-bar::before{
  content:'∫ dx · ∑ · √ · π · Δ · ∞';
  position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);
  font-family:'Space Mono',monospace;font-size:2.5rem;font-weight:700;
  color:rgba(0,210,165,.13);text-align:center;letter-spacing:.5em;
  pointer-events:none;user-select:none;white-space:nowrap;overflow:hidden;
}
/* Decorative math axis on Experience section */
#experience{
  background-image:
    linear-gradient(rgba(0,73,67,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,73,67,.09) 1px,transparent 1px);
  background-size:40px 40px;
}
[data-theme="dark"] #experience{
  background-image:
    linear-gradient(rgba(0,210,165,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,210,165,.1) 1px,transparent 1px);
}
/* Hero formula strip */
.hero-formula{
  display:flex;align-items:center;gap:1.5rem;
  margin-top:2rem;font-family:'Space Mono',monospace;
  font-size:.75rem;color:rgba(255,255,255,.22);letter-spacing:.05em;
  flex-wrap:wrap;
}
.hero-formula span{color:rgba(0,210,165,.75);}

/* ── Reveal Animation ── */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1);}
.reveal.revealed{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}

/* ── About Bento Grid ── */
#about{background:var(--bg);}
.bento-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-template-areas:
    "prof prof stat-y stat-c"
    "bio  bio  bio   stat-k"
    "info info lang  lang";
  gap:1rem;
}
.bento-card{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.75rem;
  transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s;
  will-change:transform;
}
.bento-card:hover{box-shadow:var(--shadow-lg);}
.bento-profile{grid-area:prof;display:flex;align-items:center;gap:1.25rem;position:relative;overflow:hidden;}
.bento-profile::after{
  content:'y = mx + c';
  position:absolute;bottom:.8rem;left:0;right:0;
  font-family:'Space Mono',monospace;font-size:1.2rem;font-weight:700;
  color:var(--accent);opacity:.06;text-align:center;
  pointer-events:none;user-select:none;letter-spacing:.05em;
}
.bento-photo{width:80px;height:80px;border-radius:50%;object-fit:cover;object-position:top;border:3px solid var(--accent);flex-shrink:0;}
.bento-name{font-family:'Space Grotesk',sans-serif;font-size:1.2rem;font-weight:700;color:var(--text);}
.bento-role{font-size:.85rem;color:var(--muted);margin:.2rem 0;}
.bento-loc{font-size:.78rem;color:var(--muted);margin-top:.4rem;}
.bento-loc i,.bento-avail i{margin-right:.3rem;}
.bento-avail{display:flex;align-items:center;gap:.5rem;font-size:.75rem;color:#22c55e;font-weight:600;margin-top:.5rem;}
.avail-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;animation:pulse-green 2s ease-in-out infinite;flex-shrink:0;}
.bento-stat{grid-area:stat-y;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;}
.bento-stat:nth-child(3){grid-area:stat-c;}
.bento-stat:nth-child(4){grid-area:stat-k;}
.bs-icon{position:absolute;top:1rem;right:1rem;font-size:2rem;color:var(--border);transition:color .3s;}
.bento-card:hover .bs-icon{color:rgba(0,73,67,.15);}
.bs-num{
  font-family:'Space Grotesk',sans-serif;font-size:3.5rem;font-weight:800;line-height:1;
  color:var(--text);
}
.bs-plus{font-size:2rem;font-weight:800;color:var(--accent);line-height:1;}
.bs-label{font-size:.8rem;color:var(--muted);margin-top:.35rem;line-height:1.4;}
.bs-countries{display:flex;flex-direction:column;gap:.3rem;margin-top:.6rem;}
.bs-countries span{font-size:.75rem;color:rgba(255,255,255,.75);display:flex;align-items:center;gap:.35rem;}
.bs-accent{background:linear-gradient(135deg,var(--accent) 0%,#331B00 100%);border-color:transparent;}
.bs-accent .bs-num,.bs-accent .bs-plus,.bs-accent .bs-label,.bs-accent .bs-icon{color:#fff;}
.bs-purple{background:linear-gradient(135deg,var(--accent2) 0%,#331B00 100%);border-color:transparent;}
.bs-purple .bs-num,.bs-purple .bs-label{color:#fff;}
.bento-bio{grid-area:bio;font-size:.92rem;line-height:1.75;color:var(--text);}
.bento-bio strong{color:var(--accent);}
.qual-pills{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1.25rem;}
.qpill{
  display:inline-flex;align-items:center;gap:.35rem;
  font-size:.76rem;font-weight:600;color:var(--accent);
  background:rgba(0,73,67,.1);border:1px solid rgba(0,73,67,.2);
  padding:.25rem .75rem;border-radius:50px;
}
.bento-info{grid-area:info;}
.binfo-title{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem;}
.binfo-list{display:flex;flex-direction:column;gap:.6rem;}
.binfo-item{
  display:flex;align-items:center;gap:.75rem;font-size:.84rem;color:var(--text);
  padding:.6rem .9rem;border-radius:var(--radius-sm);background:var(--bg3);
  transition:var(--tr);
}
.binfo-item:hover{background:rgba(0,73,67,.08);color:var(--accent);}
.binfo-item i{color:var(--accent);width:16px;text-align:center;flex-shrink:0;}
.bento-langs{grid-area:lang;background:var(--bg3);}
.bl-title{font-family:'Space Grotesk',sans-serif;font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:1.25rem;}
.bl-grid{display:flex;flex-direction:column;gap:.9rem;}
.bl-item{display:grid;grid-template-columns:70px 1fr 60px;align-items:center;gap:.75rem;}
.bl-name{font-size:.85rem;font-weight:600;color:var(--text);}
.bl-bar{height:6px;border-radius:6px;background:var(--border);overflow:hidden;}
.bl-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--accent),var(--accent2));width:0;transition:width 1.2s cubic-bezier(.4,0,.2,1);}
.bl-lvl{font-size:.72rem;color:var(--muted);text-align:right;}

/* ── Education ── */
#education{background:var(--bg2);}
.edu-layout{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;}
.timeline{position:relative;padding-left:2rem;}
.timeline::before{content:'';position:absolute;left:0;top:6px;bottom:0;width:2px;background:linear-gradient(to bottom,var(--accent),var(--accent2),transparent);}
.tl-item{position:relative;padding-bottom:2.5rem;}
.tl-dot{position:absolute;left:calc(-2rem - 5px);top:.3rem;width:12px;height:12px;border-radius:50%;background:var(--accent);border:2px solid var(--bg2);box-shadow:0 0 0 4px rgba(0,73,67,.2);}
.tl-year{font-size:.75rem;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:.35rem;text-transform:uppercase;}
.tl-title{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:.2rem;}
.tl-inst{font-size:.88rem;color:var(--muted);}
.tl-extra{font-size:.78rem;color:var(--muted);margin-top:.3rem;}
.certs-head{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem;}
.cert-card{
  display:flex;align-items:center;gap:1rem;padding:1.1rem 1.25rem;
  background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);
  margin-bottom:.75rem;transition:var(--tr);
}
.cert-card:hover{border-color:var(--accent);background:var(--bg2);box-shadow:var(--shadow);}
.cert-icon{
  width:40px;height:40px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;
}
.cert-name{font-size:.9rem;font-weight:700;color:var(--text);}
.cert-detail{font-size:.78rem;color:var(--muted);margin-top:.15rem;}

/* ── Skills ── */
#skills{background:var(--bg);}
.skills-layout{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;}
.skills-sub{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:1.5rem;}
.rings-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;}
.ring-wrap{display:flex;flex-direction:column;align-items:center;gap:.6rem;}
.ring-box{position:relative;width:90px;height:90px;}
.ring-svg{width:100%;height:100%;transform:rotate(-90deg);}
.ring-bg{fill:none;stroke:var(--bg3);stroke-width:5;}
.ring-fg{fill:none;stroke:var(--accent);stroke-width:5;stroke-linecap:round;stroke-dasharray:213.628;stroke-dashoffset:213.628;transition:stroke-dashoffset 1.3s cubic-bezier(.4,0,.2,1);}
.ring-pct{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:800;color:var(--text);font-family:'Space Grotesk',sans-serif;}
.ring-lbl{font-size:.75rem;font-weight:600;color:var(--muted);text-align:center;}
.stag-group{display:flex;flex-wrap:wrap;gap:.5rem;}
.stag{
  display:inline-flex;align-items:center;gap:.4rem;
  font-size:.8rem;font-weight:600;color:var(--muted);
  background:var(--bg3);border:1px solid var(--border);
  padding:.35rem .85rem;border-radius:50px;transition:var(--tr);
}
.stag:hover{border-color:var(--accent);color:var(--accent);}
.stag-a{color:var(--accent);background:rgba(0,73,67,.08);border-color:rgba(0,73,67,.2);}
.stag-a:hover{background:rgba(0,73,67,.15);}

/* ── Experience ── */
#experience{background:var(--bg2);}
.exp-timeline{position:relative;padding-left:2.5rem;max-width:820px;}
.exp-timeline::before{content:'';position:absolute;left:0;top:6px;bottom:0;width:2px;background:linear-gradient(to bottom,var(--accent),var(--accent2),transparent);}
.exp-tl-item{position:relative;padding-bottom:3.5rem;}
.exp-tl-item:last-child{padding-bottom:0;}
.exp-tl-dot{
  position:absolute;left:calc(-2.5rem - 6px);top:.3rem;
  width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  border:2px solid var(--bg2);box-shadow:0 0 0 4px rgba(0,73,67,.2);
}
.exp-tl-item:first-child .exp-tl-dot{animation:pulse-dot 2.5s ease-in-out infinite;}
@keyframes pulse-dot{0%,100%{box-shadow:0 0 0 4px rgba(0,73,67,.3),0 0 20px rgba(0,73,67,.2);}50%{box-shadow:0 0 0 9px rgba(0,73,67,.1),0 0 30px rgba(0,73,67,.25);}}
.exp-tl-body{background:transparent;border:none;border-radius:0;padding:0;box-shadow:none;display:flex;flex-direction:column;}
.exp-tl-item:hover .exp-tl-body{transform:none;box-shadow:none;border-left-color:transparent;}
.exp-tl-year{order:2;font-size:.75rem;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:.3rem;display:flex;align-items:center;gap:.4rem;flex-wrap:wrap;text-transform:uppercase;}
.exp-tl-badge{display:inline-block;background:rgba(0,73,67,.15);border:1px solid rgba(0,73,67,.3);color:#004943;font-size:.68rem;font-weight:700;padding:.1rem .55rem;border-radius:50px;letter-spacing:.06em;text-transform:none;}
[data-theme="dark"] .exp-tl-badge{color:#6EE7B7;}
.exp-tl-school{order:1;font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:.2rem;}
.exp-tl-tags{order:3;display:flex;flex-wrap:wrap;gap:.3rem .75rem;margin-bottom:.75rem;}
.exp-type{order:4;display:inline-flex;align-items:center;gap:.3rem;font-size:.78rem;color:var(--muted);background:none;border:none;padding:0;}
.exp-list{order:5;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:.3rem .9rem;}
.exp-list li{display:flex;align-items:flex-start;gap:.5rem;font-size:.86rem;color:var(--muted);padding:.1rem 0;}
.exp-list li i{color:var(--accent);margin-top:.24rem;font-size:.6rem;flex-shrink:0;opacity:.7;}

/* ── Expertise Marquee ── */
#expertise{background:var(--bg);overflow:hidden;padding:var(--section-pad);}
.marquee-wrap{display:flex;flex-direction:column;gap:.75rem;margin-top:1rem;}
.marquee-fade{
  overflow:hidden;
  -webkit-mask-image:linear-gradient(to right,transparent,black 8%,black 92%,transparent);
  mask-image:linear-gradient(to right,transparent,black 8%,black 92%,transparent);
}
.marquee-inner{
  display:flex;gap:.75rem;width:max-content;
  animation:mq-fwd 35s linear infinite;
}
.marquee-rev{animation:mq-rev 28s linear infinite;}
.marquee-fade:hover .marquee-inner{animation-play-state:paused;}
@keyframes mq-fwd{0%{transform:translateX(0);}100%{transform:translateX(-50%);}}
@keyframes mq-rev{0%{transform:translateX(-50%);}100%{transform:translateX(0);}}
.mq-chip{
  display:inline-flex;align-items:center;gap:.5rem;flex-shrink:0;
  padding:.6rem 1.25rem;border-radius:50px;
  font-size:.82rem;font-weight:600;
  background:var(--bg2);border:1px solid var(--border);color:var(--text);
  transition:var(--tr);cursor:default;white-space:nowrap;
}
.mq-chip:hover{border-color:var(--accent);color:var(--accent);}
.mq-chip i{color:var(--accent);}
.mq-alt{background:var(--bg3);color:var(--muted);}
.mq-alt i{color:var(--accent2);}
.mq-alt:hover{border-color:var(--accent2);color:var(--accent2);}

/* ── Philosophy ── */
#philosophy{background:var(--bg2);padding:var(--section-pad);position:relative;}
#philosophy::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(var(--border) 1px,transparent 1px);
  background-size:28px 28px;opacity:.6;pointer-events:none;
}
.philosophy-inner{position:relative;z-index:1;}
.phil-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:4rem;
}
.phil-card{
  background:var(--bg3);border:1px solid var(--border);
  border-radius:var(--radius);padding:2rem 1.75rem;
  position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.phil-card:hover{border-color:var(--accent);box-shadow:0 12px 40px rgba(0,73,67,.1);}
.phil-num{
  position:absolute;top:1rem;right:1.25rem;
  font-family:'Space Mono',monospace;font-size:3rem;font-weight:700;
  color:var(--border);line-height:1;
}
.phil-icon{color:var(--accent);font-size:1.6rem;margin-bottom:1rem;}
.phil-title{font-family:'Space Grotesk',sans-serif;font-size:1rem;font-weight:700;color:var(--text);margin-bottom:.6rem;}
.phil-text{font-size:.88rem;color:var(--muted);line-height:1.7;}
.phil-quote{
  text-align:center;max-width:680px;margin:0 auto;
  padding:2.5rem;background:var(--bg3);border-radius:var(--radius);
  border:1px solid var(--border);
}
.phil-quote i{color:var(--accent);font-size:1.5rem;margin-bottom:.75rem;display:block;}
.phil-quote p{font-size:1.05rem;color:var(--text);line-height:1.75;font-style:italic;}
.phil-quote em{color:var(--accent);font-style:normal;font-weight:700;}

/* ── Contact ── */
#contact{background:var(--bg);}
.contact-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:3rem;align-items:start;}
.contact-left{display:flex;flex-direction:column;gap:.75rem;}
.c-card{
  display:flex;align-items:center;gap:1rem;padding:1.1rem 1.25rem;
  background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-sm);
  transition:var(--tr);position:relative;
}
.c-card:hover{border-color:var(--accent);box-shadow:var(--shadow);}
.c-icon{width:40px;height:40px;border-radius:10px;flex-shrink:0;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:.95rem;}
.c-label{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}
.c-val{font-size:.9rem;font-weight:600;color:var(--text);margin-top:.1rem;}
.c-arr{margin-left:auto;color:var(--muted);font-size:.75rem;flex-shrink:0;}
.contact-form{display:flex;flex-direction:column;gap:1.1rem;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.form-group{display:flex;flex-direction:column;gap:.4rem;}
.form-group label{font-size:.8rem;font-weight:600;color:var(--muted);letter-spacing:.05em;}
.form-group input,.form-group textarea{
  padding:.8rem 1.1rem;background:var(--bg2);border:1.5px solid var(--border);
  border-radius:var(--radius-sm);font-size:.9rem;color:var(--text);
  transition:border-color .25s,box-shadow .25s;outline:none;resize:vertical;
}
.form-group input:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,73,67,.12);}
.btn-submit{
  display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
  padding:.95rem 2.25rem;border-radius:50px;font-weight:700;font-size:.92rem;
  background:linear-gradient(135deg,var(--accent),var(--accent-mix));
  color:#fff;box-shadow:0 8px 28px rgba(0,73,67,.35);
  transition:transform .25s,box-shadow .25s;align-self:flex-start;
}
.btn-submit:hover{transform:translateY(-3px);box-shadow:0 12px 36px rgba(0,73,67,.45);}

/* ── Footer ── */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:2.5rem 6%;}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;}
.footer-brand{font-family:'Space Grotesk',sans-serif;font-size:1.3rem;font-weight:800;color:var(--text);}
.footer-links{display:flex;gap:2rem;flex-wrap:wrap;justify-content:center;}
.footer-links a{font-size:.85rem;color:var(--muted);transition:color .2s;}
.footer-links a:hover{color:var(--accent);}
.footer-copy{font-size:.78rem;color:var(--muted);}

/* ── Back to top ── */
#btt{
  position:fixed;bottom:2rem;right:1.5rem;z-index:800;
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-size:.9rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 20px rgba(0,73,67,.35);
  opacity:0;pointer-events:none;
  transition:opacity .3s,transform .3s;
}
#btt.show{opacity:1;pointer-events:auto;}
#btt:hover{transform:translateY(-3px);}

/* ── SVG Gradient Def (hidden) ── */
body::after{content:'';display:none;}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .bento-grid{
    grid-template-columns:1fr 1fr;
    grid-template-areas:
      "prof   stat-y"
      "prof   stat-c"
      "stat-k stat-k"
      "bio    bio"
      "info   info"
      "lang   lang";
  }
  .bento-stat:nth-child(3){grid-area:stat-c;}
  .bento-stat:nth-child(4){grid-area:stat-k;}
  .edu-layout{grid-template-columns:1fr;}
  .skills-layout{grid-template-columns:1fr;}
  .phil-grid{grid-template-columns:1fr 1fr;}
  .contact-layout{grid-template-columns:1fr;}
}
@media(max-width:900px){
  .hero-content{grid-template-columns:1fr;gap:2rem;padding:7rem 6% 7rem;}
  .hero-right{display:flex;justify-content:center;order:-1;overflow:visible;padding:0 48px;}
  .hero-photo-wrap{width:220px;}
  .hero-photo-ring{width:220px;height:220px;}
  .pb-a{right:-20%;}
  .pb-b{right:-15%;bottom:10%;}
  .pb-c{left:-30%;}
  .hero-stats-bar{flex-wrap:wrap;gap:.5rem;padding:1rem;}
  .h-stat{padding:0 1.5rem;}
  .hamburger{display:flex;}
  .nav-links{display:none;}
  .mob-bottom-bar{display:flex;}
  section{scroll-margin-top:5.5rem;}
  footer{padding-bottom:6rem;}
  #btt{bottom:5.5rem;}
}
@media(max-width:700px){
  :root{--section-pad:90px 5% 100px;}
  .bento-grid{
    grid-template-columns:1fr;
    grid-template-areas:"prof" "stat-y" "stat-c" "stat-k" "bio" "info" "lang";
  }
  .bento-profile{flex-direction:column;text-align:center;}
  .bento-avail{justify-content:center;}
  .rings-grid{grid-template-columns:repeat(2,1fr);}
  .phil-grid{grid-template-columns:1fr;}
  .exp-list{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .h-stat{padding:0 1rem;}
  .h-sep{height:30px;}
  .hero-name{font-size:clamp(2.8rem,14vw,5rem);}
  .photo-badge{font-size:.67rem;padding:.32rem .7rem;gap:.35rem;}
}
@media(max-width:480px){
  .hero-photo-wrap{width:180px;}
  .hero-photo-ring{width:180px;height:180px;}
  .pb-c{display:none;}
  .bl-item{grid-template-columns:60px 1fr 50px;}
  .section-head::before{font-size:3.5rem;right:0;top:-.5rem;}
  .hero-formula{font-size:.7rem;gap:1rem;}
}