/* =========================================================
   Anthony Mwambu Wafula — Profile Site
   Navy-blue theme · aliton.co.ke
   ========================================================= */

:root{
  --navy-900:#081229;
  --navy-800:#0b1c3f;
  --navy-700:#0f2750;
  --navy-600:#143160;
  --navy-500:#1d4080;
  --navy:#1e3a8a;
  --accent:#38bdf8;       /* cyan highlight */
  --accent-2:#22d3ee;
  --gold:#f4c453;         /* warm secondary accent */
  --ink:#0f1b33;
  --text:#374559;
  --muted:#6b7892;
  --line:#e4e9f2;
  --bg:#ffffff;
  --bg-alt:#f4f7fc;
  --card:#ffffff;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 4px 14px rgba(15,39,80,.07);
  --shadow:0 18px 45px rgba(15,39,80,.12);
  --shadow-lg:0 30px 70px rgba(8,18,41,.28);
  --maxw:1140px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:'Inter',system-ui,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,.brand-text{font-family:'Poppins',sans-serif;color:var(--ink);line-height:1.15}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(100% - 2.4rem,var(--maxw));margin-inline:auto}
section{position:relative}

/* ---------- Buttons ---------- */
.btn{
  --b:var(--navy);
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:'Poppins',sans-serif;font-weight:600;font-size:.98rem;
  padding:.85rem 1.5rem;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;position:relative;overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,color .3s;
  will-change:transform;
}
.btn .arrow{transition:transform .3s var(--ease)}
.btn:hover .arrow{transform:translateX(5px)}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-accent{
  background:linear-gradient(120deg,var(--accent),var(--navy));
  color:#fff;box-shadow:0 12px 26px rgba(30,58,138,.35);
}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(56,189,248,.45)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.btn-sm{padding:.55rem 1.05rem;font-size:.9rem}
.btn-block{display:flex;justify-content:center;width:100%;margin-top:1.2rem}

/* ---------- Navbar ---------- */
.navbar{
  position:fixed;inset:0 0 auto 0;z-index:50;
  background:rgba(8,18,41,.0);
  transition:background .4s,box-shadow .4s,padding .4s;
  padding:.55rem 0;
}
.navbar.scrolled{
  background:rgba(8,18,41,.92);
  backdrop-filter:blur(12px);
  box-shadow:0 6px 24px rgba(0,0,0,.25);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.65rem;color:#fff}
.brand-mark{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--navy));
  font-family:'Poppins';font-weight:800;font-size:1.3rem;color:#fff;
  box-shadow:0 6px 16px rgba(56,189,248,.4);
}
.brand-text{display:flex;flex-direction:column;font-size:1.05rem;font-weight:700;color:#fff;line-height:1.1}
.brand-text small{font-size:.66rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-family:'Inter'}
.nav-links{display:flex;align-items:center;gap:.35rem}
.nav-link{
  color:#dfe7f5;font-weight:500;font-size:.95rem;padding:.5rem .8rem;border-radius:8px;
  position:relative;transition:color .25s;
}
.nav-link::after{
  content:"";position:absolute;left:.8rem;right:.8rem;bottom:.32rem;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);border-radius:2px;
}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-cta{margin-left:.5rem}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:.4rem}
.nav-toggle span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:.3s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:7.5rem 0 4rem;
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(56,189,248,.18),transparent 60%),
    radial-gradient(900px 500px at -10% 110%,rgba(34,211,238,.12),transparent 55%),
    linear-gradient(160deg,var(--navy-900),var(--navy-700) 55%,var(--navy-600));
  color:#eaf1ff;overflow:hidden;
}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.hero-glow{
  position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.35),transparent 65%);
  top:-120px;right:-120px;filter:blur(20px);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center}
.eyebrow{color:var(--accent);font-weight:600;letter-spacing:.18em;font-size:.78rem;text-transform:uppercase;margin-bottom:1rem}
.hero h1{color:#fff;font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:800;letter-spacing:-.5px}
.grad{background:linear-gradient(100deg,var(--accent),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin:1.3rem 0 2rem;color:#c5d3ee;font-size:1.08rem;max-width:33rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1.8rem}
.hero-badges{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{
  font-size:.82rem;font-weight:500;color:#dbe7ff;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
  padding:.4rem .9rem;border-radius:999px;backdrop-filter:blur(4px);
  transition:.3s var(--ease);
}
.chip:hover{transform:translateY(-3px);border-color:var(--accent);color:#fff;background:rgba(56,189,248,.18)}

/* Hero photo */
.hero-photo{position:relative;display:grid;place-items:center}
.photo-ring{
  position:relative;width:min(340px,72vw);aspect-ratio:1;border-radius:50%;
  display:grid;place-items:center;
  background:conic-gradient(from 0deg,var(--accent),var(--gold),var(--accent));
  padding:6px;animation:spin 14s linear infinite;
  box-shadow:0 30px 80px rgba(8,18,41,.6);
}
.photo-ring img{
  width:100%;height:100%;border-radius:50%;object-fit:cover;
  border:6px solid var(--navy-800);animation:spin 14s linear infinite reverse;
}
@keyframes spin{to{transform:rotate(360deg)}}
.orbit{position:absolute;inset:-16px;border:1.5px dashed rgba(255,255,255,.18);border-radius:50%;animation:spin 9s linear infinite}
.orbit-2{inset:-34px;animation-duration:13s;animation-direction:reverse;border-color:rgba(56,189,248,.25)}
.electron{position:absolute;top:-5px;left:50%;width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px var(--accent)}
.orbit-2 .electron{background:var(--gold);box-shadow:0 0 14px var(--gold)}
.floaty{
  position:absolute;font-family:'Poppins';font-weight:700;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  width:54px;height:54px;display:grid;place-items:center;border-radius:14px;
  font-size:1.1rem;backdrop-filter:blur(6px);box-shadow:var(--shadow-sm);
}
.floaty-1{top:4%;left:2%}
.floaty-2{bottom:8%;left:-4%;font-size:.9rem}
.floaty-3{top:10%;right:0}
.floaty-4{bottom:2%;right:6%}

/* ---------- Stats ---------- */
.stats{background:var(--navy-800);color:#fff;padding:2.4rem 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;text-align:center}
.stat{padding:1rem;border-radius:var(--radius);transition:.35s var(--ease)}
.stat:hover{background:rgba(255,255,255,.05);transform:translateY(-4px)}
.stat-num{display:block;font-family:'Poppins';font-weight:800;font-size:2.5rem;
  background:linear-gradient(120deg,var(--accent),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{color:#aebfe0;font-size:.92rem;letter-spacing:.03em}

/* ---------- Sections ---------- */
.section{padding:5.5rem 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:46rem;margin-bottom:3rem}
.kicker{color:var(--accent);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:.78rem}
.section-head h2{font-size:clamp(1.7rem,3.3vw,2.5rem);margin:.5rem 0;font-weight:700}
.section-sub{color:var(--muted);font-size:1.05rem}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.5fr .85fr;gap:2.5rem;align-items:start}
.about-text p{margin-bottom:1.1rem}
.skills-title{margin:1.8rem 0 1rem;font-size:1.15rem}
.skills{display:flex;flex-wrap:wrap;gap:.6rem}
.skill{
  font-size:.88rem;font-weight:500;color:var(--navy);
  background:#eaf1ff;border:1px solid #d6e3fb;padding:.45rem 1rem;border-radius:999px;
  cursor:default;transition:.3s var(--ease);
}
.skill:hover,.skill:focus{transform:translateY(-4px) scale(1.05);background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:0 10px 20px rgba(30,58,138,.3)}
.about-card{
  background:linear-gradient(160deg,var(--navy-800),var(--navy-600));
  color:#fff;border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow);
  position:sticky;top:90px;
}
.about-card h3{color:#fff;margin-bottom:1.2rem}
.facts{list-style:none;display:grid;gap:.9rem}
.facts li{display:flex;flex-direction:column;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:.7rem}
.facts span{font-size:.78rem;letter-spacing:.05em;text-transform:uppercase;color:var(--accent)}
.facts strong{color:#fff;font-weight:600}

/* ---------- Cards / Subjects ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:2rem 1.6rem;box-shadow:var(--shadow-sm);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:4px;
  background:linear-gradient(90deg,var(--accent),var(--gold));
  transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease);
}
.card:hover{transform:translateY(-10px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card-icon{
  width:60px;height:60px;border-radius:16px;display:grid;place-items:center;
  font-size:1.7rem;margin-bottom:1.1rem;
  background:linear-gradient(140deg,#eaf1ff,#d6e3fb);
  transition:.4s var(--ease);
}
.card:hover .card-icon{transform:rotate(-8deg) scale(1.08);background:linear-gradient(140deg,var(--accent),var(--navy));color:#fff}
.card h3{font-size:1.2rem;margin-bottom:.6rem}
.card p{font-size:.93rem;color:var(--muted)}
.card-tags{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;margin-top:1rem}
.card-tags li{font-size:.72rem;font-weight:600;color:var(--navy);background:#eef3fc;padding:.25rem .6rem;border-radius:6px}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin:0 0 3rem;padding-left:1.6rem}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--accent),var(--line))}
.tl-item{position:relative;padding-left:1.8rem;margin-bottom:1.6rem}
.tl-dot{position:absolute;left:-1.6rem;top:.4rem;width:15px;height:15px;border-radius:50%;
  background:var(--accent);border:3px solid #fff;box-shadow:0 0 0 3px rgba(56,189,248,.3);transition:.3s var(--ease)}
.tl-item:hover .tl-dot{transform:scale(1.25);box-shadow:0 0 0 6px rgba(56,189,248,.25)}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem 1.6rem;box-shadow:var(--shadow-sm);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.tl-card:hover{transform:translateX(6px);box-shadow:var(--shadow)}
.tl-date{display:inline-block;font-size:.78rem;font-weight:600;color:var(--accent-2);
  background:#e9fbff;padding:.25rem .7rem;border-radius:999px;margin-bottom:.5rem}
.tl-card h3{font-size:1.12rem}
.tl-org{color:var(--navy);font-weight:600;margin:.15rem 0 .7rem}
.tl-card ul{margin-left:1.1rem;color:var(--muted);font-size:.93rem}
.tl-card li{margin-bottom:.25rem}

.edu-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.edu-card{display:flex;gap:1rem;align-items:center;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:1.4rem 1.6rem;box-shadow:var(--shadow-sm);transition:.35s var(--ease)}
.edu-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--accent)}
.edu-icon{font-size:1.8rem;width:56px;height:56px;display:grid;place-items:center;border-radius:14px;background:#eaf1ff}
.edu-card h3{font-size:1.05rem}
.edu-card p{font-size:.9rem;color:var(--muted)}

/* ---------- Forms ---------- */
.form{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:2.2rem;box-shadow:var(--shadow);max-width:860px;
}
.lesson-form{margin-inline:auto}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.field{margin-bottom:1.1rem;display:flex;flex-direction:column}
.field label{font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:.4rem}
.field label span{color:#e25563}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:.97rem;color:var(--ink);
  padding:.8rem .95rem;border:1.5px solid var(--line);border-radius:12px;
  background:#fbfdff;transition:border-color .25s,box-shadow .25s,background .25s;
}
.field textarea{resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;
  box-shadow:0 0 0 4px rgba(56,189,248,.16);
}
.field input.invalid,.field select.invalid,.field textarea.invalid{border-color:#e25563;box-shadow:0 0 0 4px rgba(226,85,99,.12)}
.field .shake{animation:shake .4s var(--ease)}
@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-foot{display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap;margin-top:.5rem}
.form-status{font-size:.92rem;font-weight:500;margin:0}
.form-status.ok{color:#16a34a}
.form-status.err{color:#e25563}
.btn.loading{opacity:.75;pointer-events:none}
.btn.loading::after{
  content:"";width:16px;height:16px;border:2px solid rgba(255,255,255,.5);
  border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;
}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:1.8rem;align-items:start}
.contact-info{
  background:linear-gradient(160deg,var(--navy-800),var(--navy-600));color:#fff;
  border-radius:var(--radius-lg);padding:2.2rem;box-shadow:var(--shadow);
}
.contact-info h3{color:#fff;margin-bottom:.7rem}
.contact-info>p{color:#c5d3ee;font-size:.96rem}
.contact-list{list-style:none;margin:1.6rem 0;display:grid;gap:1.1rem}
.contact-list li{display:flex;gap:.9rem;align-items:center}
.ci-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:rgba(255,255,255,.1);font-size:1.2rem;flex:none;transition:.3s var(--ease)}
.contact-list li:hover .ci-icon{background:var(--accent);transform:translateY(-3px)}
.contact-list small{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
.contact-list a,.contact-list strong{color:#fff;font-weight:600}
.contact-list a:hover{color:var(--accent)}
.ci-note{font-size:.85rem;color:#9fb2d8;border-top:1px solid rgba(255,255,255,.12);padding-top:1rem}
.contact-form{max-width:none}

/* ---------- Footer ---------- */
.footer{background:var(--navy-900);color:#c5d3ee;padding-top:2.6rem}
.footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.4rem;padding-bottom:1.8rem}
.footer-brand{display:flex;align-items:center;gap:.8rem}
.footer-brand strong{display:block;color:#fff}
.footer-brand small{color:#9fb2d8}
.footer-links{display:flex;flex-wrap:wrap;gap:1.2rem}
.footer-links a{color:#c5d3ee;font-size:.92rem;transition:color .25s}
.footer-links a:hover{color:var(--accent)}
.footer-email{color:var(--accent);font-weight:600}
.footer-bar{border-top:1px solid rgba(255,255,255,.1);padding:1.1rem 0;font-size:.86rem}
.footer-bar .container{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.to-top{color:#9fb2d8;transition:color .25s}
.to-top:hover{color:#fff}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;text-align:center;gap:2.4rem}
  .hero-text{order:2}
  .hero-photo{order:1}
  .hero-actions,.hero-badges{justify-content:center}
  .lead{margin-inline:auto}
  .about-grid{grid-template-columns:1fr}
  .about-card{position:static}
  .cards{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .nav-links{
    position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:.2rem;
    background:rgba(8,18,41,.98);backdrop-filter:blur(12px);padding:1rem 1.4rem 1.6rem;
    clip-path:inset(0 0 100% 0);transition:clip-path .4s var(--ease);
  }
  .nav-links.open{clip-path:inset(0 0 0 0)}
  .nav-link{padding:.85rem .6rem}
  .nav-link::after{display:none}
  .nav-cta{margin:.6rem 0 0;text-align:center;justify-content:center}
  .navbar{background:rgba(8,18,41,.92);backdrop-filter:blur(12px)}
  .nav-toggle{display:flex}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .form-row{grid-template-columns:1fr}
  .edu-grid{grid-template-columns:1fr}
}
@media(max-width:520px){
  .cards{grid-template-columns:1fr}
  .form{padding:1.6rem 1.2rem}
  .footer-bar .container{flex-direction:column;text-align:center}
}

/* Reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}