/* ================================================================
   SHARED STYLES — rdpfister.com  v2
   High-tech redesign: glassmorphism · canvas · neon · motion
================================================================ */

/* ── 1. VARIABLES ─────────────────────────────────────────────── */
:root {
  --bg-0:       #020817;
  --bg-1:       #050d1a;
  --bg-card:    rgba(255,255,255,.028);
  --bg-card-h:  rgba(255,255,255,.055);
  --blue:       #06b6d4;
  --blue-dim:   rgba(6,182,212,.08);
  --blue-glow:  rgba(6,182,212,.22);
  --purple:     #8b5cf6;
  --purple-dim: rgba(139,92,246,.08);
  --green:      #10b981;
  --green-dim:  rgba(16,185,129,.08);
  --orange:     #f97316;
  --rose:       #f43f5e;
  --text-hi:    #f1f5f9;
  --text-lo:    #94a3b8;
  --text-faint: #334155;
  --border:     rgba(255,255,255,.06);
  --border-h:   rgba(6,182,212,.32);
  --nav-bg:     transparent;
  --hero-grad:  linear-gradient(140deg,#f1f5f9 0%,#94a3b8 100%);
  --r:          14px;
  --r-sm:       9px;
  --ease:       all .3s cubic-bezier(.4,0,.2,1);
  --ease-spring:all .5s cubic-bezier(.34,1.56,.64,1);
}

[data-theme="light"] {
  --bg-0:       #f8fafc;
  --bg-1:       #f0f4f8;
  --bg-card:    rgba(255,255,255,.75);
  --bg-card-h:  rgba(255,255,255,.95);
  --blue:       #0284c7;
  --blue-dim:   rgba(2,132,199,.08);
  --blue-glow:  rgba(2,132,199,.2);
  --purple:     #7c3aed;
  --purple-dim: rgba(124,58,237,.08);
  --green:      #059669;
  --green-dim:  rgba(5,150,105,.08);
  --text-hi:    #0f172a;
  --text-lo:    #475569;
  --text-faint: #94a3b8;
  --border:     rgba(0,0,0,.07);
  --border-h:   rgba(2,132,199,.35);
  --hero-grad:  linear-gradient(140deg,#0f172a 0%,#475569 100%);
}

/* ── 2. RESET ─────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg-0);color:var(--text-hi);line-height:1.7;overflow-x:hidden;transition:background .3s,color .3s;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{display:block;max-width:100%}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:rgba(6,182,212,.35);border-radius:99px}
::selection{background:rgba(6,182,212,.18);color:var(--text-hi)}

/* ── 3. KEYFRAMES ─────────────────────────────────────────────── */
@keyframes gradient-flow{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
@keyframes shimmer{0%{background-position:-200% center}100%{background-position:200% center}}
@keyframes fade-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes scale-in{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
@keyframes spin-slow{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes pulse-ring{0%{box-shadow:0 0 0 0 var(--blue-glow)}70%{box-shadow:0 0 0 12px transparent}100%{box-shadow:0 0 0 0 transparent}}

/* ── 4. CUSTOM CURSOR ─────────────────────────────────────────── */
@media(hover:hover)and(pointer:fine){body{cursor:none}}
.c-dot{position:fixed;width:8px;height:8px;background:var(--blue);border-radius:50%;top:0;left:0;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);mix-blend-mode:screen;transition:transform .08s,width .2s,height .2s,opacity .2s}
.c-ring{position:fixed;width:36px;height:36px;border:1.5px solid rgba(6,182,212,.5);border-radius:50%;top:0;left:0;pointer-events:none;z-index:9998;transform:translate(-50%,-50%);transition:width .25s ease,height .25s ease,border-color .25s,opacity .2s}
.c-ring.big{width:56px;height:56px;border-color:rgba(6,182,212,.7)}
.c-ring.click{width:28px;height:28px;border-color:var(--blue)}

/* ── 5. PROGRESS BAR ──────────────────────────────────────────── */
#progress{position:fixed;top:0;left:0;height:2px;width:0%;z-index:1000;background:linear-gradient(90deg,var(--blue),var(--purple),var(--blue));background-size:200% 100%;animation:shimmer 2s linear infinite;border-radius:0 2px 2px 0;box-shadow:0 0 10px var(--blue-glow);transition:width .1s linear;pointer-events:none}

/* ── 6. NAVIGATION ────────────────────────────────────────────── */
#nav{position:fixed;top:0;left:0;right:0;z-index:500;transition:var(--ease)}
#nav::after{content:'';position:absolute;inset:0;background:transparent;backdrop-filter:blur(0px);border-bottom:1px solid transparent;transition:var(--ease);z-index:-1}
#nav.scrolled::after{background:rgba(2,8,23,.88);backdrop-filter:blur(24px) saturate(180%);border-bottom-color:var(--border)}
[data-theme="light"] #nav.scrolled::after{background:rgba(248,250,252,.92)}
.nav-inner{max-width:1100px;margin:0 auto;padding:0 28px;height:66px;display:flex;align-items:center;gap:28px;position:relative}
.nav-logo{font-size:16px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.nav-logo span{background:linear-gradient(135deg,var(--blue),var(--purple));background-size:200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradient-flow 5s ease infinite}
.nav-links{display:flex;list-style:none;gap:2px;margin-left:auto}
.nav-links a{font-size:13px;font-weight:500;color:var(--text-lo);padding:6px 12px;border-radius:var(--r-sm);transition:var(--ease);position:relative}
.nav-links a::after{content:'';position:absolute;bottom:2px;left:50%;right:50%;height:1.5px;background:var(--blue);border-radius:99px;transition:var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--text-hi);background:var(--bg-card)}
.nav-links a:hover::after,.nav-links a.active::after{left:10px;right:10px}
.nav-right{display:flex;align-items:center;gap:8px}
.theme-toggle,.nav-github{width:34px;height:34px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-sm);color:var(--text-lo);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--ease)}
.theme-toggle:hover,.nav-github:hover{background:var(--bg-card-h);color:var(--text-hi);border-color:var(--border-h);box-shadow:0 0 12px var(--blue-glow)}
.theme-toggle svg,.nav-github svg{width:15px;height:15px;pointer-events:none}
.nav-cta{font-size:13px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--blue),#6366f1);padding:8px 18px;border-radius:var(--r-sm);box-shadow:0 0 20px var(--blue-glow);transition:var(--ease);white-space:nowrap}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 32px var(--blue-glow),0 4px 16px rgba(6,182,212,.25)}

/* ── 7. PAGE HERO (inner pages) ───────────────────────────────── */
.page-bg{position:fixed;inset:0;z-index:-2;background:radial-gradient(ellipse 80% 55% at 50% -5%,rgba(6,182,212,.12) 0%,transparent 60%),radial-gradient(ellipse 55% 40% at 85% 85%,rgba(139,92,246,.09) 0%,transparent 60%),var(--bg-0)}
.page-dots{position:fixed;inset:0;z-index:-1;background-image:radial-gradient(circle,rgba(255,255,255,.045) 1px,transparent 1px);background-size:30px 30px;mask-image:radial-gradient(ellipse 100% 80% at 50% 0%,black,transparent)}
.page-hero{padding:152px 0 72px;position:relative}
.page-hero h1{font-size:clamp(36px,6.5vw,70px);font-weight:900;letter-spacing:-.04em;line-height:1.05;background:var(--hero-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px}
.page-hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--blue),var(--purple));background-size:200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradient-flow 5s ease infinite}
.page-hero p{font-size:16px;color:var(--text-lo);max-width:540px;line-height:1.85}

/* ── 8. TYPOGRAPHY ────────────────────────────────────────────── */
h1,h2,h3,h4,h5{font-weight:800;line-height:1.15;letter-spacing:-.03em}
em{font-style:normal;background:linear-gradient(135deg,var(--blue),var(--purple));background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradient-flow 5s ease infinite}
.label{font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;letter-spacing:2px;text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:8px;margin-bottom:12px}
.label::before{content:'';width:20px;height:1.5px;background:linear-gradient(90deg,transparent,var(--blue))}
.section-title{font-size:clamp(24px,4vw,40px);font-weight:900;letter-spacing:-.04em;background:var(--hero-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:48px}

/* ── 9. LAYOUT ────────────────────────────────────────────────── */
.container{max-width:1100px;margin:0 auto;padding:0 28px}
section{padding:96px 0}

/* ── 10. BUTTONS ──────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:inherit;font-size:14px;font-weight:600;padding:11px 22px;border-radius:var(--r-sm);border:none;cursor:pointer;transition:var(--ease);letter-spacing:-.01em;text-decoration:none;position:relative;overflow:hidden}
.btn::after{content:'';position:absolute;inset:0;background:rgba(255,255,255,0);transition:background .2s}
.btn:active::after{background:rgba(255,255,255,.08)}
.btn-fill{background:linear-gradient(135deg,var(--blue),#6366f1);color:#fff;box-shadow:0 0 24px var(--blue-glow)}
.btn-fill:hover{transform:translateY(-2px);box-shadow:0 0 36px var(--blue-glow),0 6px 24px rgba(6,182,212,.25)}
.btn-ghost{background:var(--bg-card);color:var(--text-hi);border:1px solid var(--border);backdrop-filter:blur(12px)}
.btn-ghost:hover{background:var(--bg-card-h);border-color:var(--border-h);transform:translateY(-2px);box-shadow:0 4px 20px rgba(6,182,212,.1)}

/* ── 11. BADGES ───────────────────────────────────────────────── */
.badge{font-size:11.5px;font-weight:500;padding:5px 13px;border-radius:100px;display:inline-block}
.badge-blue,.badge-cyan{background:var(--blue-dim);border:1px solid rgba(6,182,212,.22);color:var(--blue)}
.badge-green{background:var(--green-dim);border:1px solid rgba(16,185,129,.22);color:var(--green)}
.badge-purple,.badge-violet{background:var(--purple-dim);border:1px solid rgba(139,92,246,.22);color:var(--purple)}
.badge-orange{background:rgba(249,115,22,.08);border:1px solid rgba(249,115,22,.2);color:var(--orange)}

/* ── 12. CHIPS ────────────────────────────────────────────────── */
.chip{font-family:'JetBrains Mono',monospace;font-size:11px;padding:4px 10px;border-radius:5px;background:var(--blue-dim);border:1px solid rgba(6,182,212,.18);color:var(--blue);transition:var(--ease);display:inline-block;cursor:default}
.chip:hover{background:rgba(6,182,212,.15);border-color:rgba(6,182,212,.4);transform:translateY(-1px)}

/* ── 13. CARD ─────────────────────────────────────────────────── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);backdrop-filter:blur(20px);transition:var(--ease);position:relative;overflow:hidden}
.card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,182,212,.04) 0%,transparent 60%);opacity:0;transition:opacity .4s;pointer-events:none}
.card:hover{background:var(--bg-card-h);border-color:var(--border-h);transform:translateY(-4px);box-shadow:0 24px 64px rgba(0,0,0,.5),0 0 0 1px var(--border-h),inset 0 1px 0 rgba(255,255,255,.06)}
.card:hover::before{opacity:1}

/* Tilt card — JS adds transform */
.tilt{transform-style:preserve-3d;will-change:transform}
.tilt .card-shine{position:absolute;inset:0;pointer-events:none;border-radius:inherit;opacity:0;transition:opacity .3s}
.tilt:hover .card-shine{opacity:1}

/* ── 14. FOOTER ───────────────────────────────────────────────── */
footer{border-top:1px solid var(--border);padding:32px 0}
.footer-inner{max-width:1100px;margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.footer-copy{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--text-faint)}
.footer-links{display:flex;gap:24px}
.footer-links a{font-size:13px;color:var(--text-lo);transition:var(--ease)}
.footer-links a:hover{color:var(--blue)}

/* ── 15. SCROLL ANIMATIONS ────────────────────────────────────── */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1)}
.fade-up.visible{opacity:1;transform:none}

/* Stagger children */
.stagger>*{opacity:0;transform:translateY(20px);transition:opacity .6s cubic-bezier(.4,0,.2,1),transform .6s cubic-bezier(.4,0,.2,1)}
.stagger.visible>*:nth-child(1){opacity:1;transform:none;transition-delay:0ms}
.stagger.visible>*:nth-child(2){opacity:1;transform:none;transition-delay:75ms}
.stagger.visible>*:nth-child(3){opacity:1;transform:none;transition-delay:150ms}
.stagger.visible>*:nth-child(4){opacity:1;transform:none;transition-delay:225ms}
.stagger.visible>*:nth-child(5){opacity:1;transform:none;transition-delay:300ms}
.stagger.visible>*:nth-child(6){opacity:1;transform:none;transition-delay:375ms}
.stagger.visible>*:nth-child(7){opacity:1;transform:none;transition-delay:450ms}
.stagger.visible>*:nth-child(8){opacity:1;transform:none;transition-delay:525ms}

/* ── 16. RESPONSIVE ───────────────────────────────────────────── */
@media(max-width:860px){section{padding:72px 0}.nav-links{display:none}.nav-cta{display:none}}
@media(max-width:560px){.btn{justify-content:center}.page-hero h1{letter-spacing:-.025em}}
@media(max-width:480px){.footer-inner{flex-direction:column;text-align:center}}