/* =========================================================
   ARKH Advisory — brand stylesheet
   Palette derived from logo gradient + Kandinsky/neuron banner
   ========================================================= */

:root{
  /* Logo gradient */
  --grad: linear-gradient(120deg,#1C9FD8 0%,#7A2AA0 32%,#D81C7E 52%,#ED1C5A 68%,#F47C20 100%);
  --grad-soft: linear-gradient(120deg,#1C9FD8 0%,#D81C7E 55%,#F47C20 100%);

  /* Core colors */
  --ink:#14304A;          /* deep navy — text & headings */
  --ink-soft:#3C536A;     /* secondary text */
  --teal:#2A7A99;         /* banner neuron blue */
  --orange:#E8842B;       /* banner warm accent */
  --magenta:#D81C7E;      /* logo magenta */
  --red:#ED1C5A;          /* vesicle red */

  /* Surfaces */
  --paper:#F6EFE0;        /* banner cream background */
  --paper-2:#FBF6EC;      /* lighter cream */
  --white:#FFFFFF;
  --card:#FFFDF8;
  --line:#E4DAC6;         /* hairline on cream */

  --maxw:1120px;
  --radius:16px;
  --shadow:0 10px 40px rgba(20,48,74,.08);
  --shadow-lg:0 18px 60px rgba(20,48,74,.14);

  --serif:"Spectral",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.15;margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5vw,3.4rem)}
h2{font-size:clamp(1.7rem,3.5vw,2.5rem)}
h3{font-size:1.3rem}
p{margin:0 0 1rem}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--tight{padding:56px 0}
.eyebrow{font-family:var(--sans);font-weight:700;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--magenta);margin-bottom:14px}
.lead{font-size:1.18rem;color:var(--ink-soft)}
.center{text-align:center}
.center .lead{max-width:680px;margin-left:auto;margin-right:auto}

/* ---------- Buttons ---------- */
.btn{display:inline-block;font-weight:600;font-family:var(--sans);padding:14px 26px;border-radius:999px;border:0;cursor:pointer;font-size:1rem;transition:transform .15s ease,box-shadow .15s ease}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(216,28,126,.28)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(216,28,126,.36);text-decoration:none}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;text-decoration:none}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{transform:translateY(-2px);text-decoration:none}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,239,224,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 24px;max-width:var(--maxw);margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:600;font-size:1.25rem;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand img{height:42px;width:auto}
.brand small{display:block;font-family:var(--sans);font-weight:500;font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft);margin-top:-2px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--ink);font-weight:500;font-size:.98rem}
.nav-links a.btn{color:#fff}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--ink);cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--paper)}
.hero-overlay{position:relative;background-image:url('images/banner.jpg');background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;text-align:center;min-height:clamp(380px,46vw,600px)}
.hero-overlay::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 60% 72% at 50% 50%,rgba(246,239,224,.95) 0%,rgba(246,239,224,.82) 38%,rgba(246,239,224,.4) 68%,rgba(246,239,224,0) 100%)}
.hero-text{position:relative;z-index:1;max-width:760px;padding:46px 24px}
.hero-text h1{margin-bottom:.35em}
.hero-text h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-text .lead{margin:10px auto 0;max-width:600px}
.proof-strip{margin-top:22px;font-size:.84rem;color:var(--ink-soft);letter-spacing:.01em}
.proof-strip b{color:var(--ink)}
.hero-cta{margin-top:28px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media(max-width:640px){
  .hero-overlay::before{background:radial-gradient(ellipse 92% 80% at 50% 50%,rgba(246,239,224,.97) 0%,rgba(246,239,224,.9) 55%,rgba(246,239,224,.55) 100%)}
}

/* ---------- Value pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}
@media(max-width:900px){.grid4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid4{grid-template-columns:1fr}}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow)}
.pillar .ic{width:46px;height:46px;border-radius:12px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.pillar .ic svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:2}
.pillar h3{margin-bottom:8px}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px}
.svc{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--shadow);position:relative;overflow:hidden}
.svc::before{content:"";position:absolute;left:0;top:0;height:5px;width:100%;background:var(--grad)}
.svc h3{margin-top:6px}
.svc .tag{font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--magenta);margin-bottom:6px}
.svc ul{margin:8px 0 18px;padding-left:18px;color:var(--ink-soft)}
.svc ul li{margin-bottom:5px}
.svc .best{margin-top:auto;font-size:.9rem;color:var(--ink-soft);font-style:italic}

/* ---------- Focus tags ---------- */
.focus{background:var(--ink);color:#EAF1F6}
.focus h2,.focus .eyebrow{color:#fff}
.focus .eyebrow{color:#F4A6C8}
.chips{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 18px}
.chip{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:9px 18px;font-size:.92rem}
.focus .note{color:#AEC2D1;max-width:720px}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:38px 0}
.stat{text-align:center;padding:18px}
.stat .num{font-family:var(--serif);font-size:2.8rem;font-weight:600;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.stat .lbl{font-size:.95rem;color:var(--ink-soft);margin-top:8px}
.trust{text-align:center;color:var(--ink-soft);font-size:.98rem;border-top:1px solid var(--line);padding-top:24px}
details.pubs{max-width:820px;margin:26px auto 0;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:6px 22px}
details.pubs summary{cursor:pointer;font-weight:600;padding:14px 0;color:var(--ink)}
details.pubs ol{color:var(--ink-soft);font-size:.95rem;line-height:1.6}
details.pubs li{margin-bottom:10px}

/* ---------- Fit ---------- */
.fit-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:34px}
.fit-card{border-radius:var(--radius);padding:30px 28px;border:1px solid var(--line)}
.fit-yes{background:#F0F7EF;border-color:#CDE6C9}
.fit-no{background:#FBF2EC;border-color:#F0D9CB}
.fit-card h3{display:flex;align-items:center;gap:10px}
.fit-card ul{list-style:none;padding:0;margin:14px 0 0}
.fit-card li{padding-left:30px;position:relative;margin-bottom:12px;color:var(--ink-soft)}
.fit-yes li::before{content:"✓";position:absolute;left:0;color:#3E9B4F;font-weight:800}
.fit-no li::before{content:"✕";position:absolute;left:0;color:#C6552E;font-weight:800}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow)}
.step .n{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;font-family:var(--serif);font-weight:600;font-size:1.3rem;display:flex;align-items:center;justify-content:center;margin-bottom:16px}

/* ---------- About ---------- */
.about-inner{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:center}
.about-photo{position:relative}
.about-photo img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/5}
.about-photo .ph-fallback{border-radius:var(--radius);box-shadow:var(--shadow-lg);aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;background:var(--grad);color:#fff;font-family:var(--serif);font-size:5rem}
.about-meta{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px}
.about-meta a,.about-meta span{font-size:.86rem;background:var(--paper-2);border:1px solid var(--line);border-radius:999px;padding:7px 15px;color:var(--ink)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#fff;text-align:center}
.cta-band h2{color:#fff}
.cta-band .lead{color:#C6D6E2;max-width:600px;margin:0 auto 26px}
.cta-band .btn-row{justify-content:center}
.contact-line{margin-top:26px;font-size:.92rem;color:#9FB6C6}
.contact-line a{color:#F4A6C8}

/* ---------- Footer ---------- */
.site-footer{background:#0F2438;color:#9FB6C6;font-size:.9rem;padding:46px 0 30px}
.foot-top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.foot-brand{display:flex;align-items:center;gap:12px;color:#fff;font-family:var(--serif);font-size:1.2rem}
.foot-brand img{height:38px}
.foot-links a{color:#C6D6E2;display:block;margin-bottom:8px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.82rem}
.foot-note{max-width:520px;color:#7E97A8}

/* ---------- Forms (request prices / contact) ---------- */
.form-wrap{max-width:760px;margin:0 auto}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 32px;box-shadow:var(--shadow);margin-top:26px}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field-full{grid-column:1 / -1}
.form-grid label{display:block;font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:6px}
.form-grid .req{color:var(--magenta)}
.form-grid input,.form-grid select,.form-grid textarea{width:100%;font-family:var(--sans);font-size:1rem;color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:11px 13px;transition:border-color .15s ease}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{outline:none;border-color:var(--magenta)}
.form-grid textarea{min-height:120px;resize:vertical}
.checks{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:4px}
.checks label{display:flex;align-items:center;gap:8px;font-weight:500;font-size:.95rem;margin:0;cursor:pointer}
.checks input{width:auto}
.form-actions{margin-top:24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-note{font-size:.84rem;color:var(--ink-soft);max-width:520px}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}

/* ---------- Legal page ---------- */
.legal{background:var(--paper-2);min-height:60vh}
.legal-body{max-width:820px;margin:0 auto}
.legal-body h2{margin-top:36px}
.legal-body dl{display:grid;grid-template-columns:max-content 1fr;gap:8px 24px;margin:0 0 20px}
.legal-body dt{font-weight:700;color:var(--ink)}
.legal-body dd{margin:0;color:var(--ink-soft)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-inner,.about-inner{grid-template-columns:1fr;gap:34px}
  .pillars,.services-grid,.steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .fit-cols{grid-template-columns:1fr}
  .nav-links{position:fixed;inset:64px 0 auto 0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:20px 24px;gap:18px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .25s ease;box-shadow:var(--shadow)}
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:block}
}