/* ============ سپهر سازان سرزمین پارس — styles.css ============ */
:root{
  --forest-950:#0b1710; --forest-900:#0e2016; --forest-800:#12291d; --forest-700:#1a3a2a;
  --forest-600:#245039; --forest-100:#dfe8e0; --ivory:#f4efe4; --ivory-dim:#e6dfd0;
  --gold:#c9a35a; --gold-soft:#e5c98d; --gold-deep:#a9823c;
  --ink:#22301f; --muted:#5c6a58;
  --radius:14px; --shadow:0 18px 40px rgba(11,23,16,.14);
  --max:1160px; --pad:clamp(1.1rem,4vw,2rem);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{
  font-family:Tahoma,Arial,sans-serif;
  background:var(--ivory); color:var(--ink); line-height:1.9; font-size:1rem;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img,svg{max-width:100%}
.container{max-width:var(--max);margin-inline:auto;padding-inline:var(--pad)}
.narrow{max-width:780px}
.section{padding-block:clamp(4rem,9vw,7rem)}
.section.alt{background:var(--forest-900);color:var(--ivory)}
.section.alt .section-lead,.section.alt .body-text{color:var(--ivory-dim)}
.skip-link{position:absolute;top:-100px;right:1rem;background:var(--gold);color:var(--forest-950);padding:.6rem 1.2rem;border-radius:8px;z-index:200;font-weight:700}
.skip-link:focus{top:1rem;right:.5rem}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}

/* ---- typography ---- */
.eyebrow{display:inline-block;font-size:.82rem;font-weight:700;letter-spacing:.18em;color:var(--gold-deep);margin-bottom:.9rem;text-transform:uppercase}
.section.alt .eyebrow,.hero .eyebrow{color:var(--gold-soft)}
.centered{display:block;text-align:center}
.section-title{font-size:clamp(1.7rem,4vw,2.6rem);font-weight:900;line-height:1.45;margin-bottom:1rem}
.section-lead{color:var(--muted);max-width:620px}
.lead{font-size:clamp(1.05rem,2.2vw,1.3rem);font-weight:500;margin-bottom:1rem}
.body-text{color:var(--muted);margin-bottom:1rem}
.gold-text{color:var(--gold-soft)}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.9rem 2rem;border-radius:999px;font-family:inherit;font-size:1rem;font-weight:700;text-decoration:none;cursor:pointer;border:1.5px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,color .25s}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:var(--forest-950);box-shadow:0 8px 22px rgba(201,163,90,.35)}
.btn-gold:hover{box-shadow:0 12px 28px rgba(201,163,90,.5)}
.btn-ghost{border-color:var(--gold);color:var(--gold);background:transparent}
.btn-ghost:hover{background:rgba(201,163,90,.12)}
.btn-sm{padding:.55rem 1.3rem;font-size:.9rem}

/* ---- header ---- */
.site-header{position:fixed;inset-inline:0;top:0;z-index:100;transition:background .3s,box-shadow .3s;padding-block:.9rem}
.site-header.scrolled{background:rgba(11,23,16,.92);backdrop-filter:blur(10px);box-shadow:0 6px 24px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:1rem;text-decoration:none;color:var(--ivory)}
.brand-mark{width:76px;height:76px;object-fit:contain;aspect-ratio:1/1;color:var(--gold-soft);flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-text strong{font-weight:900;font-size:1.2rem}
.brand-text small{font-size:.82rem;color:var(--gold-soft);letter-spacing:.12em}
.main-nav ul{display:flex;list-style:none;gap:.3rem}
.main-nav a{display:block;padding:.6rem 1.1rem;color:var(--ivory-dim);text-decoration:none;font-size:1rem;font-weight:500;border-radius:8px;transition:color .2s,background .2s}
.main-nav a:hover{color:var(--gold-soft)}
.main-nav a.active{color:var(--gold-soft);background:rgba(201,163,90,.12)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:.6rem;cursor:pointer}
.nav-toggle .bar{width:26px;height:2px;background:var(--ivory);transition:transform .3s,opacity .3s;border-radius:2px}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- hero ---- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;background:var(--forest-950);color:var(--ivory);overflow:hidden}
.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to left,rgba(11,23,16,.88) 0%,rgba(11,23,16,.55) 55%,rgba(11,23,16,.25) 100%)}
.hero-content{position:relative;z-index:2;max-width:760px;padding-block:7rem}
.hero .eyebrow{border:1px solid rgba(229,201,141,.4);padding:.35rem 1.1rem;border-radius:999px;background:rgba(229,201,141,.08)}
.hero-title{font-size:clamp(30px,4.2vw,58px);font-weight:900;line-height:1.65;margin-block:1.4rem 1.2rem;text-wrap:balance}
.hero-lead{font-size:clamp(1rem,2vw,1.2rem);color:var(--ivory-dim);max-width:540px;margin-bottom:2.2rem}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}
.scroll-hint{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);z-index:2;width:24px;height:42px;border:1.5px solid rgba(229,201,141,.6);border-radius:14px;display:flex;justify-content:center;padding-top:7px}
.scroll-hint span{width:3px;height:9px;background:var(--gold-soft);border-radius:2px;animation:hint 1.8s infinite}
@keyframes hint{0%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(12px)}100%{opacity:0}}

/* ---- intro ---- */
.intro{text-align:center}
.intro .section-title::after{content:"";display:block;width:64px;height:3px;background:var(--gold);margin:1.4rem auto 0;border-radius:2px}
.intro .lead{color:var(--ink)}

/* ---- services ---- */
.section-head{max-width:680px;margin-bottom:3rem}
.svc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.6rem}
.svc{background:var(--forest-800);border:1px solid rgba(229,201,141,.14);border-radius:var(--radius);padding:2rem 1.8rem;display:flex;flex-direction:column;position:relative;overflow:hidden;transition:border-color .3s,transform .3s,box-shadow .3s}
.svc:hover{border-color:rgba(229,201,141,.45);transform:translateY(-4px);box-shadow:var(--shadow)}
.svc::after{content:"";position:absolute;top:0;right:0;width:3px;height:0;background:linear-gradient(var(--gold-soft),var(--gold-deep));transition:height .4s}
.svc:hover::after{height:100%}
.svc-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.4rem}
.svc-num{font-size:2.6rem;font-weight:900;color:transparent;-webkit-text-stroke:1.2px var(--gold);line-height:1}
.svc-icon{width:40px;height:40px;color:var(--gold-soft)}
.svc-title{font-size:1.25rem;font-weight:900;color:var(--ivory);line-height:1.6;margin-bottom:.4rem}
.svc-sub{font-size:.92rem;color:var(--gold-soft);margin-bottom:1.2rem}
.svc-toggle{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;gap:.45rem;background:none;border:1px solid rgba(229,201,141,.4);color:var(--ivory-dim);font-family:inherit;font-size:.9rem;font-weight:600;padding:.5rem 1.1rem;border-radius:999px;cursor:pointer;transition:background .25s,color .25s}
.svc-toggle:hover{background:rgba(201,163,90,.15);color:var(--gold-soft)}
.svc-toggle .chev{width:16px;height:16px;transition:transform .3s}
.svc-toggle[aria-expanded="true"] .chev{transform:rotate(180deg)}
.svc-detail{margin-top:1.3rem;padding-top:1.3rem;border-top:1px dashed rgba(229,201,141,.25)}
.svc-prose{color:var(--ivory-dim);font-size:.95rem;margin-bottom:1rem}
.svc-head{color:var(--gold-soft);font-weight:700;font-size:.92rem;margin-bottom:.5rem}
.svc-list{list-style:none;margin-bottom:1.1rem;display:grid;gap:.45rem}
.svc-list li{position:relative;padding-right:1.4rem;color:var(--ivory-dim);font-size:.93rem}
.svc-list li::before{content:"";position:absolute;right:0;top:.65em;width:8px;height:8px;border:1.5px solid var(--gold);transform:rotate(45deg)}
.svc-approach{background:rgba(201,163,90,.09);border-right:3px solid var(--gold);padding:.85rem 1rem;border-radius:8px;color:var(--ivory);font-size:.92rem;margin-bottom:1.3rem}
.svc-approach strong{color:var(--gold-soft)}
.svc-cta{align-self:flex-start}

/* ---- approach steps ---- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.4rem;counter-reset:step}
.step{background:var(--ivory);border:1px solid rgba(201,163,90,.35);border-radius:var(--radius);padding:2rem 1.6rem;position:relative}
.step-num{position:absolute;top:-1.1rem;right:1.4rem;width:2.4rem;height:2.4rem;border-radius:50%;background:var(--gold);color:var(--forest-950);font-weight:900;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 14px rgba(201,163,90,.4)}
.step h3{font-size:1.05rem;font-weight:800;margin-bottom:.5rem;color:var(--forest-800)}
.step p{font-size:.92rem;color:var(--muted)}

/* ---- about ---- */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:center}
.about-art svg{width:100%;height:auto;opacity:.9}

/* ---- consultation ---- */
.consult-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:3rem;align-items:start}
.notice{margin-top:1.5rem;background:rgba(201,163,90,.1);border:1px solid rgba(201,163,90,.4);border-radius:var(--radius);padding:1.1rem 1.3rem;font-size:.9rem;color:var(--ivory-dim)}
.notice strong{color:var(--gold-soft)}
.consult-form{background:var(--forest-800);border:1px solid rgba(229,201,141,.2);border-radius:var(--radius);padding:2.2rem;display:grid;gap:1.2rem;box-shadow:var(--shadow)}
.field label{display:block;font-weight:700;font-size:.92rem;color:var(--ivory);margin-bottom:.4rem}
.req{color:var(--gold-soft)}
.field input,.field select,.field textarea{width:100%;background:var(--forest-950);border:1px solid rgba(229,201,141,.25);border-radius:10px;padding:.8rem 1rem;color:var(--ivory);font-family:inherit;font-size:.95rem;transition:border-color .2s}
.field textarea{resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold-soft);box-shadow:0 0 0 3px rgba(201,163,90,.18)}
.field-error{color:#f0b4a0;font-size:.83rem;margin-top:.35rem}
.field input.invalid,.field textarea.invalid{border-color:#d98a72}
.form-actions{display:flex;gap:.8rem;flex-wrap:wrap;align-items:center}
.form-status{font-size:.9rem;color:var(--gold-soft);min-height:1.4em}

/* ---- footer ---- */
.site-footer{background:var(--forest-950);color:var(--ivory-dim);padding-block:3.2rem 1.6rem}
.footer-inner{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding-bottom:2rem;border-bottom:1px solid rgba(229,201,141,.15)}
.footer-brand{display:flex;gap:.9rem;align-items:flex-start}
.footer-brand .brand-mark{width:46px;height:46px;color:var(--gold-soft)}
.footer-brand strong{color:var(--ivory);font-weight:900}
.tagline{font-size:.9rem;color:var(--gold-soft);margin-top:.3rem}
.footer-links{list-style:none;display:flex;gap:1.4rem;flex-wrap:wrap}
.footer-links a{color:var(--ivory-dim);text-decoration:none;font-size:.92rem;transition:color .2s}
.footer-links a:hover{color:var(--gold-soft)}
.footer-note{padding-top:1.4rem;font-size:.8rem;color:#93a294}

/* ---- reveal animation ---- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---- responsive ---- */
@media (max-width:920px){
  .about-grid,.consult-grid{grid-template-columns:1fr}
  .about-art{max-width:340px}
}
@media (max-width:820px){
  .brand-mark{width:56px;height:56px;object-fit:contain;aspect-ratio:1/1}
  .brand{gap:.8rem}
  .brand-text strong{font-size:1.05rem}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;inset:0 0 auto 0;top:0;background:rgba(11,23,16,.98);height:100vh;padding:6.5rem 2rem 2rem;transform:translateX(100%);transition:transform .35s ease;z-index:99;overflow-y:auto}
  .main-nav.open{transform:none}
  .main-nav ul{flex-direction:column;gap:.4rem}
  .main-nav a{font-size:1.15rem;padding:.9rem 1rem;border-bottom:1px solid rgba(229,201,141,.1)}
  .hero-content{padding-block:8rem 5rem}
  .consult-form{padding:1.5rem}
}

@font-face {
  font-family:'SepehrVazir';
  src:url('fonts/Vazir.ttf') format('truetype');
  font-weight:400;
  font-style:normal;
  font-display:swap;
}
body,h1,h2,h3,h4,h5,h6,nav,a,button,input,textarea,select {font-family:'SepehrVazir',Tahoma,sans-serif;}