/* ================================================================
   PORTFOLIOCDL v4 — Dark/Light · Glassmorphism · Rich Animations
   Fonts: Clash Display + Satoshi (Fontshare)
   Layout: titles centered, content full-width left-aligned
   ================================================================ */

@import url('https://api.fontshare.com/v2/css?f[]=clash-display@400,500,600,700&f[]=satoshi@300,400,500,700&display=swap');

/* ── Light tokens ──────────────────────────────────────────── */
:root {
  --bg:              #f4f1eb;
  --surface:         #ffffff;
  --glass-bg:        rgba(255,255,255,0.58);
  --glass-bg-strong: rgba(255,255,255,0.86);
  --glass-border:    rgba(255,255,255,0.80);
  --glass-shadow:    0 4px 28px rgba(15,32,68,0.08), 0 1px 6px rgba(15,32,68,0.04);
  --glass-shadow-lg: 0 18px 54px rgba(15,32,68,0.13), 0 4px 14px rgba(15,32,68,0.07);
  --navy:    #0f2044;
  --blue:    #2563eb;
  --blue-l:  #60a5fa;
  --grad:    linear-gradient(135deg,#2563eb 0%,#7c3aed 100%);
  --text:    #0f2044;
  --muted:   #5a6a80;
  --light:   #94a3b8;
  --div:     rgba(15,32,68,0.08);
  --chip:    rgba(37,99,235,0.07);
  --chipb:   rgba(37,99,235,0.16);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-pill:999px;
  --ease: cubic-bezier(.4,0,.2,1);
  --spring: cubic-bezier(.34,1.56,.64,1);
  --out: cubic-bezier(0,0,.2,1);
  --tf:.16s; --tm:.30s; --ts:.65s;
}

/* ── Dark tokens ───────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:              #080f1e;
  --surface:         #0f1929;
  --glass-bg:        rgba(10,18,35,0.72);
  --glass-bg-strong: rgba(10,18,35,0.93);
  --glass-border:    rgba(255,255,255,0.07);
  --glass-shadow:    0 4px 28px rgba(0,0,0,0.45), 0 1px 6px rgba(0,0,0,0.32);
  --glass-shadow-lg: 0 18px 54px rgba(0,0,0,0.58), 0 4px 14px rgba(0,0,0,0.40);
  --navy:  #e2e8f0;
  --blue:  #60a5fa;
  --blue-l:#93c5fd;
  --grad:  linear-gradient(135deg,#60a5fa 0%,#a78bfa 100%);
  --text:  #e2e8f0;
  --muted: #94a3b8;
  --light: #475569;
  --div:   rgba(255,255,255,0.07);
  --chip:  rgba(96,165,250,0.10);
  --chipb: rgba(96,165,250,0.22);
}

/* ── Reset ─────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}

body {
  font-family:'Satoshi',system-ui,sans-serif;
  background:var(--bg); color:var(--text);
  line-height:1.7; min-height:100vh; overflow-x:hidden;
  transition:background .45s var(--ease),color .45s var(--ease);
}

/* Background ambiance */
body::before {
  content:''; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(ellipse 68% 52% at 10% 6%,   rgba(96,165,250,.12) 0%,transparent 58%),
    radial-gradient(ellipse 52% 68% at 90% 92%,  rgba(124,58,237,.08) 0%,transparent 58%),
    radial-gradient(ellipse 58% 44% at 58% 52%,  rgba(37,99,235,.05)  0%,transparent 55%);
  animation:bgDrift 24s ease-in-out infinite alternate;
}
[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse 68% 52% at 10% 6%,   rgba(37,99,235,.17) 0%,transparent 58%),
    radial-gradient(ellipse 52% 68% at 90% 92%,  rgba(124,58,237,.14) 0%,transparent 58%),
    radial-gradient(ellipse 58% 44% at 58% 52%,  rgba(96,165,250,.06) 0%,transparent 55%);
}
@keyframes bgDrift{0%{transform:scale(1) translate(0,0);}50%{transform:scale(1.05) translate(1%,1%);}100%{transform:scale(1.02) translate(-1%,-.5%);}}

#particles-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.42;}

header,main,.page-hero,.hero,section,footer,
.main-wrap,.main-wrap-sm,.nav-section{position:relative;z-index:1;}

/* ── Typography ────────────────────────────────────────────── */
h1,h2,h3,h4{font-family:'Clash Display',serif;font-weight:600;line-height:1.15;letter-spacing:-.025em;color:var(--navy);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

/* ════════════════════════════════════════
   NAVBAR — pill, logo+sep+links, no gap
   ════════════════════════════════════════ */
header {
  position:fixed; top:14px; left:50%; transform:translateX(-50%);
  width:min(1200px,calc(100vw - 24px)); z-index:1000;
  background:var(--glass-bg-strong);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1px solid var(--glass-border); border-radius:var(--r-pill);
  padding:0 8px 0 20px; height:52px;
  display:flex; align-items:center;
  box-shadow:var(--glass-shadow);
  animation:navIn .6s var(--out) both;
  transition:background .45s var(--ease),border-color .45s var(--ease),box-shadow .45s var(--ease);
}
@keyframes navIn{from{opacity:0;transform:translateX(-50%) translateY(-14px);}to{opacity:1;transform:translateX(-50%) translateY(0);}}

.site-logo{font-family:'Clash Display',serif;font-size:1.06rem;font-weight:700;color:var(--navy);letter-spacing:-.03em;flex-shrink:0;white-space:nowrap;transition:color .45s var(--ease);}
.site-logo .accent{color:var(--blue);}

.nav-sep{width:1px;height:18px;background:var(--div);margin:0 8px;flex-shrink:0;transition:background .45s var(--ease);}

nav{flex:1;}
nav ul{list-style:none;display:flex;align-items:center;gap:1px;}
nav>ul>li>a,nav>ul>li>span{display:block;padding:6px 10px;font-size:.79rem;font-weight:500;color:var(--muted);border-radius:var(--r-sm);transition:color var(--tf) var(--ease),background var(--tf) var(--ease);cursor:pointer;white-space:nowrap;}
nav>ul>li>a:hover,nav>ul>li>span:hover{color:var(--blue);background:var(--chip);}

.dropdown{position:relative;}
.dropdown>a::after,.dropdown>span::after{content:'▾';font-size:.58rem;margin-left:3px;opacity:.5;}
.submenu{position:absolute;top:calc(100% + 7px);right:0;min-width:168px;background:var(--glass-bg-strong);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--glass-border);border-radius:var(--r-md);box-shadow:var(--glass-shadow-lg);list-style:none;padding:5px;opacity:0;pointer-events:none;transform:translateY(5px);transition:opacity var(--tm) var(--ease),transform var(--tm) var(--out);z-index:300;}
.dropdown:hover .submenu,.dropdown:focus-within .submenu{opacity:1;pointer-events:all;transform:translateY(0);}
.submenu li a{display:block;padding:8px 12px;font-size:.81rem;font-weight:500;color:var(--muted);border-radius:var(--r-sm);transition:background var(--tf) var(--ease),color var(--tf) var(--ease);}
.submenu li a:hover{background:var(--chip);color:var(--blue);}

/* Theme toggle */
.theme-toggle{width:34px;height:34px;border-radius:var(--r-sm);background:var(--chip);border:1px solid var(--chipb);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.95rem;flex-shrink:0;margin-left:8px;transition:background var(--tf) var(--ease),transform .2s var(--spring),border-color .45s var(--ease);}
.theme-toggle:hover{background:rgba(37,99,235,.15);transform:scale(1.1) rotate(10deg);}

/* ════════════════════════════════════════
   PAGE HERO — title centered, rest left
   ════════════════════════════════════════ */
.page-hero {
  padding: 118px 0 44px;
  text-align: center;         /* titles centered */
}

.page-hero-label{display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:var(--blue);background:var(--chip);border:1px solid var(--chipb);border-radius:var(--r-pill);padding:4px 13px;margin-bottom:12px;animation:fadeUp .5s .1s var(--out) both;}
.page-hero h1{font-size:clamp(1.9rem,4vw,2.9rem);animation:fadeUp .5s .2s var(--out) both;margin-bottom:8px;}
.page-hero p{font-size:.98rem;color:var(--muted);font-weight:400;animation:fadeUp .5s .3s var(--out) both;max-width:520px;margin:0 auto;}

/* ── Wrappers ──────────────────────────────────────────────── */
.main-wrap   {max-width:1160px;margin:0 auto;padding:0 40px 100px;}
.main-wrap-sm{max-width: 820px;margin:0 auto;padding:0 32px 100px;}

/* ── Glass Card ────────────────────────────────────────────── */
.glass-card{background:var(--glass-bg);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border:1px solid var(--glass-border);border-radius:var(--r-lg);padding:32px 36px;box-shadow:var(--glass-shadow);transition:box-shadow var(--tm) var(--ease),background .45s var(--ease),border-color .45s var(--ease);}

/* ── Section ───────────────────────────────────────────────── */
.section{padding:24px 0;border-top:1px solid var(--div);transition:border-color .45s var(--ease);}
.section:first-child{border-top:none;padding-top:4px;}
.section h2{font-size:1.18rem;margin-bottom:11px;}
.section p,.section li{color:var(--muted);font-size:.94rem;}
.section ul{margin:8px 0 0 18px;}
.section li{margin:6px 0;}

/* ── Accent box ────────────────────────────────────────────── */
.accent-box{position:relative;padding:14px 18px 14px 26px;background:var(--chip);border:1px solid var(--chipb);border-radius:var(--r-md);margin:12px 0;transition:background .45s var(--ease),border-color .45s var(--ease);}
.accent-box::before{content:'';position:absolute;left:9px;top:12px;bottom:12px;width:3px;border-radius:3px;background:var(--grad);}
.accent-box p{color:var(--muted);font-size:.94rem;}

/* ── Badges ────────────────────────────────────────────────── */
.badges{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px;}
.badge{padding:4px 12px;border-radius:var(--r-pill);background:var(--chip);border:1px solid var(--chipb);font-size:.79rem;font-weight:500;color:var(--blue);white-space:nowrap;transition:background var(--tf),transform var(--tf) var(--spring),border-color .45s var(--ease);}
.badge:hover{background:rgba(37,99,235,.14);transform:translateY(-2px);}

/* ── Meta pills ────────────────────────────────────────────── */
.meta-pills{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px;}
.meta-pill{padding:4px 12px;border-radius:var(--r-pill);background:var(--chip);border:1px solid var(--chipb);font-size:.77rem;font-weight:500;color:var(--muted);transition:background .45s var(--ease),border-color .45s var(--ease);}

/* ── Buttons ───────────────────────────────────────────────── */
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--r-md);font-family:'Satoshi',sans-serif;font-weight:500;font-size:.875rem;cursor:pointer;transition:all var(--tm) var(--spring);text-decoration:none;border:none;white-space:nowrap;}
.btn-ghost{background:var(--glass-bg);backdrop-filter:blur(10px);border:1px solid var(--glass-border);color:var(--navy);box-shadow:var(--glass-shadow);transition:background var(--tm) var(--ease),transform var(--tm) var(--spring),box-shadow var(--tm) var(--ease),border-color .45s var(--ease),color .45s var(--ease);}
.btn-ghost:hover{background:var(--glass-bg-strong);transform:translateY(-2px);box-shadow:var(--glass-shadow-lg);}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 18px rgba(37,99,235,.32);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(37,99,235,.44);}

/* ── Page footer ───────────────────────────────────────────── */
.page-footer{text-align:center;margin-top:40px;padding-top:24px;border-top:1px solid var(--div);color:var(--light);font-size:.83rem;transition:border-color .45s var(--ease),color .45s var(--ease);}

/* ════════════════════════════════════════
   SCROLL REVEAL — staggered & directional
   ════════════════════════════════════════ */
.reveal       {opacity:0;transform:translateY(28px);transition:opacity var(--ts) var(--out),transform var(--ts) var(--out);}
.reveal.visible{opacity:1;transform:translateY(0);}
.reveal-left  {opacity:0;transform:translateX(-28px);transition:opacity var(--ts) var(--out),transform var(--ts) var(--out);}
.reveal-right {opacity:0;transform:translateX(28px); transition:opacity var(--ts) var(--out),transform var(--ts) var(--out);}
.reveal-left.visible,.reveal-right.visible{opacity:1;transform:translate(0);}
.reveal-scale {opacity:0;transform:scale(.92);transition:opacity var(--ts) var(--out),transform var(--ts) var(--out);}
.reveal-scale.visible{opacity:1;transform:scale(1);}
.delay-1{transition-delay:.07s}.delay-2{transition-delay:.14s}.delay-3{transition-delay:.21s}.delay-4{transition-delay:.28s}.delay-5{transition-delay:.35s}.delay-6{transition-delay:.42s}

/* ── Keyframes ─────────────────────────────────────────────── */
@keyframes fadeUp {from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
@keyframes fadeIn {from{opacity:0;}to{opacity:1;}}
@keyframes float  {0%,100%{transform:translateY(0);}50%{transform:translateY(-9px);}}
@keyframes shimmer{0%{background-position:-400px 0;}100%{background-position:400px 0;}}
@keyframes pulseRing{0%{transform:scale(1);opacity:.6;}100%{transform:scale(1.5);opacity:0;}}

/* ── Responsive ────────────────────────────────────────────── */
@media(max-width:900px){
  header{padding:0 6px 0 14px;height:48px;}
  nav>ul>li>a,nav>ul>li>span{padding:5px 6px;font-size:.72rem;}
  .glass-card{padding:20px 18px;}
  .main-wrap{padding:0 18px 70px;}.main-wrap-sm{padding:0 16px 70px;}
  .page-hero{padding:98px 16px 36px;}
}
@media(max-width:560px){
  nav>ul{gap:0;}nav>ul>li>a,nav>ul>li>span{padding:4px 4px;font-size:.67rem;}
  .theme-toggle{width:28px;height:28px;font-size:.8rem;margin-left:3px;}
}