/* ============================================================
   Valcat GTM Engineering School — shared styles
   Used by the hub page and every starting-path landing page.
   Brand tokens mirror valcat.co (blue -> purple gradient, Inter).
   ============================================================ */

:root{
  --blue:#3B5BDB; --blue-light:#4C6EF5;
  --purple:#845EF7; --purple-light:#B197FC;
  --ink:#0B1020; --ink-2:#121935;
  --text-dark:#111827; --text-gray:#4B5563; --text-light:#9CA3AF;
  --line:#E5E7EB; --bg:#FFFFFF; --bg-soft:#F8F9FC;
  --green:#10B981; --amber:#F59E0B;
  --grad:linear-gradient(135deg,var(--blue) 0%,var(--purple) 100%);
  --grad-hover:linear-gradient(135deg,var(--blue-light) 0%,var(--purple-light) 100%);
  --max:1160px; --r:14px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{overflow-x:hidden;max-width:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--text-dark);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}

.container{max-width:var(--max);margin:0 auto;padding:0 1.5rem}
section{padding:5.5rem 0}
.soft{background:var(--bg-soft)}
.center{text-align:center}

h1,h2,h3,h4{font-weight:800;line-height:1.15;letter-spacing:-0.025em}
h1{font-size:clamp(2.25rem,5vw,3.8rem)}
h2{font-size:clamp(1.85rem,3.6vw,2.7rem);margin-bottom:1rem}
h3{font-size:1.2rem;font-weight:700;letter-spacing:-0.015em}
p{font-size:1.0625rem;color:var(--text-gray)}
.lede{font-size:clamp(1.05rem,1.7vw,1.25rem);color:var(--text-gray);max-width:44rem}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;padding:1.05rem 2rem;border-radius:10px;font-weight:700;font-size:1.0625rem;text-decoration:none;border:none;cursor:pointer;font-family:inherit;transition:transform .25s ease,box-shadow .25s ease,background .25s ease}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 22px rgba(90,80,240,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(90,80,240,.4);background:var(--grad-hover)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(255,255,255,.22)}
.btn-ghost:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
.btn-block{width:100%}

/* ---------- nav ---------- */
header{position:sticky;top:0;z-index:900;background:rgba(11,16,32,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;max-width:1260px;margin:0 auto;padding:.85rem 1.5rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:#fff;font-weight:800;letter-spacing:-.02em;font-size:1.1rem}
.brand .mark{width:30px;height:30px;border-radius:8px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:.85rem;font-weight:800}
.brand small{display:block;font-size:.68rem;font-weight:600;color:var(--purple-light);letter-spacing:.09em;text-transform:uppercase;line-height:1}
.nav-links{display:flex;align-items:center;gap:1.6rem}
.nav-links a{color:rgba(255,255,255,.72);text-decoration:none;font-size:.94rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-cta{padding:.62rem 1.15rem;font-size:.94rem;border-radius:8px}
@media(max-width:880px){.nav-links a:not(.btn){display:none}}

/* ---------- hero ---------- */
.hero{background:radial-gradient(900px 520px at 78% -8%,rgba(132,94,247,.34),transparent 62%),radial-gradient(760px 460px at 8% 8%,rgba(59,91,219,.30),transparent 60%),linear-gradient(180deg,var(--ink) 0%,var(--ink-2) 100%);color:#fff;padding:5.25rem 0 4.75rem;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(760px 460px at 50% 22%,#000,transparent 78%);-webkit-mask-image:radial-gradient(760px 460px at 50% 22%,#000,transparent 78%)}
.hero .container{position:relative;z-index:2}
.hero h1{color:#fff;margin-bottom:1.25rem;max-width:20ch}
.hero p{color:rgba(255,255,255,.76)}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;background:rgba(132,94,247,.16);border:1px solid rgba(177,151,252,.36);color:#D8CCFF;font-size:.78rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;padding:.45rem .95rem;border-radius:999px;margin-bottom:1.5rem}
.dot{width:7px;height:7px;border-radius:50%;background:#34D399;box-shadow:0 0 0 4px rgba(52,211,153,.2);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.1rem}
.hero-note{margin-top:1.05rem;font-size:.92rem;color:rgba(255,255,255,.55)}
.crumb{font-size:.86rem;color:rgba(255,255,255,.5);margin-bottom:1.1rem}
.crumb a{color:rgba(255,255,255,.72);text-decoration:none}
.crumb a:hover{color:#fff}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13);border-radius:var(--r);overflow:hidden;margin-top:3.2rem}
.stat{background:rgba(11,16,32,.62);padding:1.4rem 1.2rem}
.stat b{display:block;font-size:1.6rem;font-weight:800;color:#fff;letter-spacing:-.03em}
.stat span{font-size:.82rem;color:rgba(255,255,255,.58);font-weight:500}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ---------- blocks ---------- */
.head{max-width:46rem;margin:0 auto 3rem;text-align:center}
.head p{font-size:1.1rem}
.head.left{margin-left:0;text-align:left}
.kicker{font-size:.78rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--purple);margin-bottom:.7rem}

.grid{display:grid;gap:1.35rem}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:940px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.7rem;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(17,24,39,.09);border-color:#D9DCF5}
.card h3{margin-bottom:.55rem}
.card p{font-size:.98rem}
.ico{width:42px;height:42px;border-radius:11px;background:linear-gradient(135deg,rgba(59,91,219,.12),rgba(132,94,247,.14));display:grid;place-items:center;font-size:1.2rem;margin-bottom:1.05rem}

/* ---------- research bars ---------- */
.research{background:#fff;border:1px solid var(--line);border-radius:18px;padding:2.2rem;box-shadow:0 14px 40px rgba(17,24,39,.06)}
.bar-row{display:grid;grid-template-columns:14rem 1fr 3.4rem;gap:1rem;align-items:center;padding:.62rem 0;border-bottom:1px dashed var(--line)}
.bar-row:last-child{border-bottom:none}
.bar-row .lbl{font-size:.96rem;font-weight:700;color:var(--text-dark)}
.bar-row .lbl small{display:block;font-weight:500;font-size:.82rem;color:var(--text-light)}
.bar{height:12px;border-radius:99px;background:#EEF0FA;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:var(--grad);width:0;transition:width 1.1s cubic-bezier(.16,1,.3,1)}
.bar-row .pct{font-size:1rem;font-weight:800;color:var(--blue);text-align:right}
.bar-row a{text-decoration:none}
.bar-row a:hover .lbl{color:var(--blue)}
@media(max-width:640px){.bar-row{grid-template-columns:1fr 3rem;gap:.5rem}.bar-row .bar{grid-column:1/-1;order:3}}
.source{font-size:.85rem;color:var(--text-light);margin-top:1.3rem;text-align:center}

/* ---------- path cards ---------- */
.path{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.7rem 1.5rem;display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .28s ease,box-shadow .28s ease,border-color .28s}
.path:hover{transform:translateY(-5px);box-shadow:0 16px 44px rgba(17,24,39,.1);border-color:#CFD4F2}
.path .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);background:rgba(59,91,219,.09);padding:.3rem .6rem;border-radius:6px;margin-bottom:.9rem;align-self:flex-start}
.path h3{font-size:1.18rem;margin-bottom:.45rem}
.path p{font-size:.95rem;margin-bottom:1rem}
.path .go{margin-top:auto;padding-top:.9rem;border-top:1px dashed var(--line);font-size:.9rem;font-weight:700;color:var(--purple)}

/* ---------- modules ---------- */
.mods{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
@media(max-width:760px){.mods{grid-template-columns:1fr}}
.mod{background:#fff;padding:1.5rem 1.6rem;display:flex;gap:1.05rem;transition:background .25s}
.mod:hover{background:#FBFBFE}
.mod .n{flex:0 0 auto;width:32px;height:32px;border-radius:9px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:.85rem;font-weight:800}
.mod h4{font-size:1.02rem;font-weight:700;margin-bottom:.28rem}
.mod p{font-size:.92rem;margin:0}

/* ---------- transform (before/after) ---------- */
.xform{display:grid;grid-template-columns:1fr auto 1fr;gap:1.6rem;align-items:stretch}
@media(max-width:820px){.xform{grid-template-columns:1fr;gap:1rem}.xform .arrow{transform:rotate(90deg);margin:0 auto}}
.xcol{border-radius:var(--r);padding:1.7rem}
.xnow{background:#fff;border:1px solid var(--line)}
.xnext{background:var(--ink);color:#fff;border:1px solid rgba(255,255,255,.1)}
.xcol h3{margin-bottom:1rem;font-size:1.05rem}
.xnext h3{color:#fff}
.xcol ul{list-style:none}
.xcol li{font-size:.98rem;padding-left:1.7rem;position:relative;margin-bottom:.75rem;line-height:1.5;color:var(--text-gray)}
.xnext li{color:rgba(255,255,255,.78)}
.xnow li::before{content:"✕";position:absolute;left:0;color:#EF4444;font-weight:800}
.xnext li::before{content:"✓";position:absolute;left:0;color:#34D399;font-weight:800}
.arrow{display:grid;place-items:center;font-size:1.8rem;color:var(--purple)}

/* ---------- process ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
@media(max-width:940px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.13);border-radius:var(--r);padding:1.6rem}
.step .n{font-size:.75rem;font-weight:800;letter-spacing:.12em;color:var(--purple-light);margin-bottom:.7rem;display:block}
.step h3{color:#fff;font-size:1.08rem;margin-bottom:.45rem}
.step p{font-size:.94rem;color:rgba(255,255,255,.66);margin:0}
.dark{background:linear-gradient(180deg,var(--ink) 0%,var(--ink-2) 100%);color:#fff}
.dark h2{color:#fff}
.dark .head p{color:rgba(255,255,255,.7)}
.dark .kicker{color:var(--purple-light)}

/* ---------- fit ---------- */
.fit{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.9rem}
.fit h3{margin-bottom:1.1rem;display:flex;align-items:center;gap:.6rem;font-size:1.1rem}
.fit ul{list-style:none}
.fit li{font-size:1rem;color:var(--text-gray);padding-left:1.9rem;position:relative;margin-bottom:.8rem;line-height:1.5}
.fit li::before{position:absolute;left:0;top:-1px;font-size:1.05rem;font-weight:800}
.yes li::before{content:"✓";color:var(--green)}
.no li::before{content:"✕";color:#EF4444}

/* ---------- payoff ---------- */
.payoff{background:var(--grad);color:#fff;border-radius:18px;padding:3rem 2.4rem;text-align:center}
.payoff h2{color:#fff;margin-bottom:.7rem}
.payoff p{color:rgba(255,255,255,.85);max-width:42rem;margin:0 auto}
.payoff .big{font-size:clamp(2.5rem,7vw,4.2rem);font-weight:800;letter-spacing:-.04em;line-height:1;margin:.4rem 0 .9rem}
.payoff .kicker{color:rgba(255,255,255,.82)}

/* ---------- faq ---------- */
.faq{max-width:47rem;margin:0 auto}
details{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:.8rem;overflow:hidden;transition:border-color .25s}
details[open]{border-color:#CFD4F2;box-shadow:0 8px 26px rgba(17,24,39,.06)}
summary{cursor:pointer;padding:1.15rem 1.4rem;font-weight:700;font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.35rem;font-weight:700;color:var(--purple);transition:transform .25s;flex:0 0 auto}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 1.4rem 1.25rem;font-size:.99rem;margin:0}

/* ---------- form ---------- */
.apply-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:3rem;align-items:start}
@media(max-width:920px){.apply-wrap{grid-template-columns:1fr;gap:2.2rem}}
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:2rem;box-shadow:0 18px 50px rgba(17,24,39,.09)}
.field{margin-bottom:1.05rem}
.field label{display:block;font-size:.86rem;font-weight:700;margin-bottom:.4rem;color:var(--text-dark)}
.field .req{color:#EF4444}
.field input,.field select,.field textarea{width:100%;padding:.82rem .95rem;border:1px solid var(--line);border-radius:9px;font-family:inherit;font-size:.98rem;color:var(--text-dark);background:#fff;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue-light);box-shadow:0 0 0 3px rgba(76,110,245,.14)}
.field textarea{resize:vertical;min-height:96px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:520px){.row2{grid-template-columns:1fr}}
.form-note{font-size:.83rem;color:var(--text-light);margin-top:.9rem;text-align:center}
.seats{display:flex;align-items:center;gap:.6rem;background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.3);color:#92400E;font-size:.88rem;font-weight:600;padding:.7rem .95rem;border-radius:9px;margin-bottom:1.4rem}
.ok-msg{display:none;text-align:center;padding:2rem 1rem}
.ok-msg .tick{width:56px;height:56px;border-radius:50%;background:rgba(16,185,129,.12);color:var(--green);display:grid;place-items:center;font-size:1.7rem;margin:0 auto 1.1rem}
.ok-msg h3{font-size:1.35rem;margin-bottom:.6rem}
.err-msg{display:none;background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.28);color:#B91C1C;font-size:.9rem;padding:.75rem .95rem;border-radius:9px;margin-top:.9rem}
.checklist{list-style:none;margin-top:1.6rem}
.checklist li{padding-left:1.9rem;position:relative;margin-bottom:.85rem;font-size:1rem;color:var(--text-gray)}
.checklist li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800;font-size:1.05rem}

/* ---------- footer ---------- */
footer{background:var(--ink);color:rgba(255,255,255,.6);padding:2.8rem 0;font-size:.92rem}
.foot{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center}
footer a{color:rgba(255,255,255,.78);text-decoration:none}
footer a:hover{color:#fff}
.foot-paths{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;margin-top:1.4rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.1);font-size:.86rem}

/* ---------- sticky mobile cta ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:950;padding:.75rem 1rem;background:rgba(11,16,32,.94);backdrop-filter:blur(10px);border-top:1px solid rgba(255,255,255,.1);display:none}
@media(max-width:720px){.sticky-cta{display:block}body{padding-bottom:76px}}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.rv.in{opacity:1;transform:none}
.stag > .rv:nth-child(2){transition-delay:.07s}
.stag > .rv:nth-child(3){transition-delay:.14s}
.stag > .rv:nth-child(4){transition-delay:.21s}
.stag > .rv:nth-child(5){transition-delay:.28s}
.stag > .rv:nth-child(6){transition-delay:.35s}
.stag > .rv:nth-child(7){transition-delay:.42s}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ---------- tool chips + stack map ---------- */
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{font-size:.86rem;font-weight:600;padding:.42rem .78rem;border-radius:8px;background:#fff;border:1px solid var(--line);color:var(--text-dark);white-space:nowrap}
.chip.on{background:rgba(59,91,219,.07);border-color:rgba(59,91,219,.26);color:var(--blue)}
.chip.dim{background:transparent;border-color:rgba(255,255,255,.2);color:rgba(255,255,255,.82)}
.stackmap{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
@media(max-width:780px){.stackmap{grid-template-columns:1fr}}
.sgrp{background:#fff;padding:1.5rem 1.6rem}
.sgrp h4{font-size:.78rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase;color:var(--purple);margin-bottom:.9rem}
.sgrp .note{font-size:.88rem;color:var(--text-light);margin-top:.75rem}
.today{background:var(--ink);border-radius:var(--r);padding:1.9rem;color:#fff}
.today h3{color:#fff;margin-bottom:.5rem}
.today p{color:rgba(255,255,255,.68);font-size:.98rem;margin-bottom:1.2rem}

/* ---------- week-by-week track ---------- */
.weeks{border-top:1px solid var(--line)}
.wk{display:grid;grid-template-columns:6.5rem 1fr;gap:1.4rem;padding:1.6rem 0;border-bottom:1px solid var(--line)}
@media(max-width:640px){.wk{grid-template-columns:1fr;gap:.6rem}}
.wk .wn{font-size:.78rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);padding-top:.2rem}
.wk h4{font-size:1.08rem;font-weight:700;margin-bottom:.45rem}
.wk > div > p{font-size:.97rem;margin-bottom:.85rem}
.wk .ship{font-size:.93rem;color:var(--text-dark);border-left:3px solid var(--green);padding-left:.85rem;margin-top:.95rem;line-height:1.5}
.wk .ship b{color:var(--green);font-weight:800;text-transform:uppercase;font-size:.74rem;letter-spacing:.09em;display:block;margin-bottom:.15rem}
.wk .chip{font-size:.8rem;padding:.32rem .6rem}
.seq{background:rgba(132,94,247,.06);border:1px solid rgba(132,94,247,.22);border-radius:var(--r);padding:1.5rem 1.7rem;margin-bottom:2.2rem}
.seq h3{font-size:1.05rem;margin-bottom:.7rem}
.seq p{font-size:.98rem;margin:0}
.seq p + p{margin-top:.6rem}