/* ============================================================
   JCMC — Personal site  ·  Juan Carlo Mejía Chang / infoNode
   Bauhaus / minimalist · purple-led · Mark D identity
   ============================================================ */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  --carbon:#101820; --ink:#0A0A0A; --graphite:#2B2B2B;
  --steel:#5C5C5C; --mist:#ADB3B9; --cloud:#F3F4F6; --white:#FFFFFF;
  --purple:#7A4FA3; --purple-soft:#AA84C6; --navy:#003153; --slate:#677AA1;
  --green:#5F9E3F; --orange:#E8853A; --red:#C6362F; --yellow:#F2C230;
  --bg:var(--white); --bg-alt:var(--cloud); --surface:var(--white);
  --text:var(--carbon); --text-muted:var(--steel);
  --border:#E5E7EB; --accent:var(--purple); --accent-2:var(--navy);
  --link:var(--purple); --ring:rgba(122,79,163,.35);
  --font:'Jost','Century Gothic','Futura',system-ui,-apple-system,sans-serif;
  --tracking:0.12em;
  --radius:14px; --radius-lg:22px; --maxw:1120px;
  --shadow:0 1px 2px rgba(16,24,32,.04), 0 8px 30px rgba(16,24,32,.06);
  --ease:cubic-bezier(.2,.7,.2,1);
}
[data-theme="dark"] {
  --bg:var(--carbon); --bg-alt:#161E27; --surface:#161E27;
  --text:var(--white); --text-muted:var(--mist);
  --border:#2A333D; --accent:var(--purple-soft);
  --link:var(--purple-soft); --ring:rgba(170,132,198,.4);
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 34px rgba(0,0,0,.35);
}

/* ---------- 2. RESET / BASE ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);
  line-height:1.65;font-weight:400;letter-spacing:.01em;
  transition:background .4s var(--ease),color .4s var(--ease);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.15;font-weight:700;letter-spacing:-.01em}
section{padding:96px 0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.accent{color:var(--accent)}
.muted{color:var(--text-muted)}
.kicker{font-size:.78rem;letter-spacing:var(--tracking);text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:10px}
.section-title{font-size:clamp(1.7rem,3.4vw,2.5rem);margin-bottom:14px}
.section-lead{color:var(--text-muted);max-width:60ch;margin-bottom:44px;font-size:1.05rem}

/* ---------- 3. HEADER / NAV ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--border);
  transition:background .4s var(--ease),border-color .4s var(--ease)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo{height:34px;width:auto}
.brand .logo-dark{display:none}
[data-theme="dark"] .brand .logo-light{display:none}
[data-theme="dark"] .brand .logo-dark{display:block}
.brand .tagchip{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-muted);border:1px solid var(--border);padding:3px 8px;border-radius:999px;font-weight:600}
.brand .tagchip b{color:var(--accent);font-weight:700}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{color:var(--text);font-size:.95rem;font-weight:500;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;
  background:var(--accent);transition:width .25s var(--ease)}
.nav-links a:hover{text-decoration:none}
.nav-links a:hover::after{width:100%}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;transition:.2s var(--ease)}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.nav-toggle{display:none}

/* ---------- 4. HERO ---------- */
.hero{padding:150px 0 90px;position:relative;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;
  background:url(../img/hero-desk.jpg) center/cover no-repeat;background-attachment:fixed}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(115deg,rgba(16,24,32,.94) 0%,rgba(16,24,32,.82) 42%,rgba(122,79,163,.58) 100%)}
.hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.3rem,5.2vw,3.9rem);letter-spacing:-.02em;margin-bottom:8px;color:#fff}
.hero h1 .accent{color:var(--purple-soft)}
.hero .kicker{color:var(--purple-soft)}
.hero .rotator{font-size:clamp(1.05rem,2.4vw,1.5rem);font-weight:600;color:var(--purple-soft);
  min-height:1.6em;margin:6px 0 18px}
.hero .rotator .caret{display:inline-block;width:2px;height:1.05em;background:var(--purple-soft);
  margin-left:2px;vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.hero p.lede{font-size:1.12rem;color:#D9DEE3;max-width:52ch;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:12px;
  font-weight:600;font-size:.98rem;cursor:pointer;border:1px solid transparent;transition:.2s var(--ease)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{filter:brightness(1.06);text-decoration:none;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06);text-decoration:none}
.hero-portrait{justify-self:center;width:min(300px,78%);border-radius:22px;
  border:1px solid rgba(255,255,255,.22);box-shadow:0 26px 64px rgba(0,0,0,.55)}
.trust{display:flex;align-items:center;gap:30px;margin-top:60px;flex-wrap:wrap;
  padding-top:30px;border-top:1px solid rgba(255,255,255,.16)}
.trust-stat{display:flex;align-items:baseline;gap:10px;flex:0 0 auto}
.trust-stat .num{font-size:clamp(2.2rem,4vw,3rem);font-weight:700;color:var(--purple-soft);letter-spacing:-.02em}
.trust-stat .lbl{font-size:.92rem;line-height:1.2;color:#C7CDD3}
.trust-worked{flex:1 1 320px;min-width:260px}
.trust-label{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:#9AA1A8;margin-bottom:10px;font-weight:600}
.trust-logos{display:flex;flex-wrap:wrap;gap:8px 10px}
.trust-logos span{font-size:.86rem;font-weight:500;color:#EDEFF1;
  padding:6px 12px;border:1px solid rgba(255,255,255,.22);border-radius:999px;white-space:nowrap;transition:.2s var(--ease)}
.trust-logos span:hover{border-color:var(--purple-soft);color:#fff}

/* ---------- 5. SECTION BANNERS ---------- */
.sec-banner{position:relative;padding:66px 0;margin-bottom:56px;overflow:hidden;
  background-color:var(--carbon);background-size:cover;background-position:center 38%;background-repeat:no-repeat}
.banner-about{background-image:linear-gradient(90deg,rgba(16,24,32,.86) 0%,rgba(16,24,32,.45) 58%,rgba(16,24,32,.30) 100%),url(../img/art-bridge.jpg)}
.banner-skills{background-image:linear-gradient(90deg,rgba(16,24,32,.86) 0%,rgba(16,24,32,.45) 58%,rgba(16,24,32,.30) 100%),url(../img/art-lights.jpg)}
.banner-resume{background-image:linear-gradient(90deg,rgba(16,24,32,.86) 0%,rgba(16,24,32,.48) 58%,rgba(16,24,32,.32) 100%),url(../img/art-sunset.jpg)}
.banner-contact{background-image:linear-gradient(90deg,rgba(16,24,32,.86) 0%,rgba(16,24,32,.45) 58%,rgba(16,24,32,.30) 100%),url(../img/art-mirror.jpg);background-position:center 30%}
.sec-banner .container{position:relative;z-index:1}
.sec-banner .kicker{color:var(--purple-soft)}
.sec-banner .section-title{color:#fff;margin-bottom:0}
.sec-banner .section-lead{color:#E4E7EA;margin:12px 0 0}
.sec-banner .section-title,.sec-banner .section-lead{text-shadow:0 2px 14px rgba(0,0,0,.45)}
section.has-banner{padding-top:0}

/* ---------- 6. ABOUT ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.about p{margin-bottom:16px;color:var(--text)}
.about-portrait{float:right;width:210px;border-radius:14px;margin:4px 0 16px 24px;
  border:1px solid var(--border);box-shadow:var(--shadow)}
.about .now{background:var(--bg-alt);border:1px solid var(--border);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:22px 24px}
.about .now h4{font-size:1.05rem;margin-bottom:8px}
.about .now .role-meta{font-size:.9rem;color:var(--text-muted);margin-bottom:10px}

/* ---------- 7. SKILLS ---------- */
.skill-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.skill-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);transition:.25s var(--ease)}
.skill-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.skill-card .ic{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:1.2rem;margin-bottom:14px}
.skill-card h3{font-size:1.08rem;margin-bottom:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:.82rem;padding:5px 11px;border-radius:999px;background:var(--bg-alt);
  border:1px solid var(--border);color:var(--text-muted)}

/* ---------- 8. TIMELINE / RESUME ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:18px;top:6px;bottom:6px;width:2px;background:var(--border)}
.tl-item{position:relative;padding:0 0 40px 56px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:9px;top:4px;width:20px;height:20px;border-radius:50%;
  background:var(--bg);border:3px solid var(--accent)}
.tl-item.current .tl-dot{background:var(--accent);box-shadow:0 0 0 5px var(--ring)}
.tl-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:10px}
.tl-headings{flex:1 1 auto;min-width:0}
.tl-right{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.tl-role{font-size:1.15rem;font-weight:700}
.tl-date{font-size:.85rem;color:var(--text-muted);font-weight:600;white-space:nowrap}
.tl-org{color:var(--accent-2);font-weight:600;margin:2px 0 3px}
[data-theme="dark"] .tl-org{color:var(--purple-soft)}
.tl-report{font-size:.85rem;color:var(--text-muted)}
.tl-desc{color:var(--text)}
.tl-desc li{position:relative;padding-left:18px;margin-bottom:6px;color:var(--text-muted)}
.tl-desc li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.badge-now{display:inline-block;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  background:var(--accent);color:#fff;padding:2px 9px;border-radius:999px;font-weight:700;margin-left:8px}
/* company logo chip */
.tl-logo{width:118px;height:66px;border-radius:10px;background:#fff;
  border:1px solid var(--border);display:grid;place-items:center;padding:9px;box-shadow:var(--shadow)}
.tl-logo img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}

.cards-2{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:8px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.panel h3{font-size:1.15rem;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.list-row{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed var(--border)}
.list-row:last-child{border-bottom:none}
.list-row .r{color:var(--text-muted);font-size:.9rem;text-align:right;white-space:nowrap}
.list-row .l{font-weight:500}

/* ---------- 9. CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px}
.contact-info .row{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px}
.contact-info .ic{width:42px;height:42px;border-radius:10px;flex:0 0 auto;display:grid;place-items:center;
  background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:1.1rem}
.contact-info .row .k{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}
.contact-info .row .v{font-weight:600}
.form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:7px}
.field input,.field textarea{width:100%;padding:13px 15px;border-radius:11px;border:1px solid var(--border);
  background:var(--bg);color:var(--text);font-family:inherit;font-size:.98rem;transition:.2s var(--ease)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--ring)}
.field textarea{resize:vertical;min-height:130px}
.form-note{font-size:.82rem;color:var(--text-muted);margin-top:6px}
.form-status{margin-top:14px;padding:12px 16px;border-radius:11px;font-size:.92rem;display:none}
.form-status.ok{display:block;background:color-mix(in srgb,var(--green) 16%,transparent);color:var(--green);border:1px solid var(--green)}
.form-status.err{display:block;background:color-mix(in srgb,var(--red) 14%,transparent);color:var(--red);border:1px solid var(--red)}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}

/* ---------- 10. FOOTER ---------- */
.site-footer{border-top:1px solid var(--border);padding:44px 0;background:var(--bg-alt)}
.footer-in{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.footer-in .wm{height:30px}
.footer-in .wm-dark{display:none}
[data-theme="dark"] .footer-in .wm-light{display:none}
[data-theme="dark"] .footer-in .wm-dark{display:block}
.copy{font-size:.85rem;color:var(--text-muted)}

/* ---------- 11. REVEAL ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- 12. RESPONSIVE ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-portrait{grid-row:1;width:min(240px,60%)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:30px}
  .skill-grid{grid-template-columns:1fr 1fr}
  .cards-2{grid-template-columns:1fr}
  .nav-links{position:fixed;inset:70px 0 auto 0;flex-direction:column;gap:0;
    background:var(--bg);border-bottom:1px solid var(--border);
    padding:8px 24px 20px;transform:translateY(-120%);transition:transform .3s var(--ease)}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 0;width:100%;border-bottom:1px solid var(--border)}
  .nav-links a::after{display:none}
  .nav-toggle{display:grid}
  .brand .tagchip{display:none}
}
@media (max-width:768px){
  .hero::before{background-attachment:scroll}
  .sec-banner{padding:52px 0;margin-bottom:42px}
  .tl-logo{width:92px;height:54px}
}
@media (max-width:520px){
  section{padding:70px 0}
  .skill-grid{grid-template-columns:1fr}
  .tl-date{white-space:normal}
  .about-portrait{float:none;width:100%;margin:0 0 18px}
  .trust{gap:20px}
  .tl-head{flex-direction:column}
  .tl-right{flex-direction:row;align-items:center;order:-1;gap:14px}
}