/* ===========================================================
   گیل‌دانش — پوسته اصلی سایت
   پالت رنگی برگرفته از طبیعت گیلان: سبز جنگل، مه دریای خزر،
   کاغذ برنج و چوب گردو.
=========================================================== */

:root{
  --forest:   #1F4D3D;
  --forest-d: #163A2D;
  --moss:     #3E7C6B;
  --moss-l:   #5C9C89;
  --mist:     #E4EEE8;
  --paper:    #FBF8F1;
  --paper-d:  #F3EEE1;
  --wood:     #8B5E3C;
  --gold:     #C9A24B;
  --ink:      #1C2621;
  --ink-soft: #4B5750;
  --line:     #DCD6C6;
  --radius:   10px;
  --shadow:   0 6px 24px rgba(28,38,33,.08);
  --maxw:     1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Vazirmatn', Tahoma, sans-serif;
  font-size:16px;
  line-height:1.85;
  direction:rtl;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-weight:700; color:var(--forest-d); line-height:1.4; }
p{ margin:0; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }

/* ---------- دکمه‌ها ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:8px; font-weight:700; font-size:15px;
  border:1.5px solid transparent; cursor:pointer; transition:transform .15s ease, background .2s ease;
}
.btn-primary{ background:var(--forest); color:#fff; }
.btn-primary:hover{ background:var(--forest-d); transform:translateY(-1px); }
.btn-gold{ background:var(--gold); color:var(--forest-d); }
.btn-gold:hover{ transform:translateY(-1px); }
.btn-outline{ background:transparent; border-color:var(--forest); color:var(--forest); }
.btn-outline:hover{ background:var(--forest); color:#fff; }
.btn-block{ width:100%; }

/* ---------- هدر ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:var(--paper); border-bottom:1px solid var(--line);
}
.header-bar{
  display:flex; align-items:center; justify-content:space-between;
  gap:20px; padding:14px 0;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ width:46px; height:46px; }
.brand-text{ display:flex; flex-direction:column; }
.brand-name{ font-size:20px; font-weight:900; color:var(--forest-d); }
.brand-slogan{ font-size:12.5px; color:var(--moss); font-weight:500; }

.main-nav{ display:flex; align-items:center; gap:6px; }
.main-nav a{
  padding:9px 14px; border-radius:7px; font-size:15px; font-weight:500; color:var(--ink-soft);
  transition:background .15s ease, color .15s ease;
}
.main-nav a:hover, .main-nav a.active{ background:var(--mist); color:var(--forest-d); }

.header-actions{ display:flex; align-items:center; gap:10px; }

.login-dropdown{ position:relative; }
.login-toggle{
  display:flex; align-items:center; gap:7px;
  padding:11px 20px; border-radius:8px; border:1.5px solid var(--forest);
  color:var(--forest); font-weight:700; font-size:15px; background:transparent; cursor:pointer;
  font-family:inherit;
}
.login-toggle:hover{ background:var(--forest); color:#fff; }
.login-toggle .chev{ transition:transform .2s ease; font-size:11px; }
.login-dropdown.open .login-toggle .chev{ transform:rotate(180deg); }

.login-menu{
  position:absolute; top:calc(100% + 10px); left:0;
  width:230px; background:#fff; border:1px solid var(--line);
  border-radius:var(--radius); box-shadow:var(--shadow);
  padding:8px; display:none; flex-direction:column; gap:2px;
}
.login-dropdown.open .login-menu{ display:flex; }
.login-menu a{
  display:flex; align-items:center; gap:10px;
  padding:11px 12px; border-radius:7px; font-size:14.5px; font-weight:500; color:var(--ink);
}
.login-menu a:hover{ background:var(--mist); color:var(--forest-d); }
.login-menu .role-icon{
  width:30px; height:30px; border-radius:7px; background:var(--mist);
  display:flex; align-items:center; justify-content:center; font-size:16px; flex-shrink:0;
}

.nav-toggle{
  display:none; background:none; border:1.5px solid var(--line); border-radius:8px;
  width:44px; height:44px; cursor:pointer; font-size:20px; color:var(--forest);
}

/* ---------- هیرو ---------- */
.hero{
  position:relative; overflow:hidden;
  background:linear-gradient(180deg, var(--mist) 0%, var(--paper) 100%);
  border-bottom:1px solid var(--line);
}
.hero-inner{
  display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center;
  padding:64px 0 56px;
}
.hero-eyebrow{ color:var(--moss); font-weight:700; font-size:14.5px; margin-bottom:14px; }
.hero h1{
  font-size:42px; font-weight:900; color:var(--forest-d); letter-spacing:-.5px;
}
.hero h1 span{ color:var(--wood); }
.hero p.lead{
  margin-top:18px; font-size:17px; color:var(--ink-soft); max-width:52ch;
}
.hero-cta{ display:flex; gap:12px; margin-top:30px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:28px; margin-top:40px; flex-wrap:wrap; }
.hero-stat b{ display:block; font-size:26px; color:var(--forest-d); }
.hero-stat span{ font-size:13.5px; color:var(--ink-soft); }

.hero-art{ position:relative; }
.hero-art svg{ width:100%; height:auto; }

/* ---------- بخش‌های عمومی ---------- */
.section{ padding:64px 0; }
.section-alt{ background:var(--mist); }
.section-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:20px; margin-bottom:34px; flex-wrap:wrap;
}
.section-head h2{ font-size:28px; }
.section-head p{ color:var(--ink-soft); margin-top:8px; max-width:55ch; }
.section-link{ font-weight:700; color:var(--moss); border-bottom:1.5px solid var(--moss); padding-bottom:2px; white-space:nowrap; }

/* ---------- ویژگی‌ها ---------- */
.features{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.feature-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; display:flex; flex-direction:column; gap:12px;
}
.feature-icon{
  width:46px; height:46px; border-radius:9px; background:var(--forest);
  color:#fff; display:flex; align-items:center; justify-content:center; font-size:21px;
}
.feature-card h3{ font-size:17.5px; }
.feature-card p{ color:var(--ink-soft); font-size:14.5px; }

/* ---------- اخبار ---------- */
.news-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.news-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; display:flex; flex-direction:column;
}
.news-thumb{
  height:110px; background:linear-gradient(135deg, var(--forest) 0%, var(--moss) 100%);
  display:flex; align-items:center; justify-content:center; color:#fff; font-size:12.5px; font-weight:700;
}
.news-body{ padding:18px; display:flex; flex-direction:column; gap:10px; flex:1; }
.news-date{ font-size:12.5px; color:var(--moss); font-weight:700; }
.news-card h3{ font-size:15.5px; line-height:1.6; }
.news-card p{ font-size:13.5px; color:var(--ink-soft); flex:1; }
.news-more{ font-size:13.5px; font-weight:700; color:var(--forest); align-self:flex-start; }

/* ---------- فرم پیش‌ثبت‌نام ---------- */
.register{
  background:var(--forest); border-radius:16px; padding:48px;
  display:grid; grid-template-columns:.85fr 1.15fr; gap:44px; color:#fff;
}
.register-info h2{ color:#fff; font-size:27px; }
.register-info p{ color:#DDEAE3; margin-top:14px; }
.register-points{ margin-top:26px; display:flex; flex-direction:column; gap:12px; }
.register-points li{ display:flex; gap:10px; align-items:flex-start; font-size:14.5px; color:#EAF2ED; }
.register-points li::before{ content:"✓"; color:var(--gold); font-weight:900; }

.form-grid{
  background:#fff; border-radius:var(--radius); padding:28px;
  display:grid; grid-template-columns:1fr 1fr; gap:16px; color:var(--ink);
}
.form-grid .full{ grid-column:1 / -1; }
.field label{ display:block; font-size:13.5px; font-weight:700; margin-bottom:7px; color:var(--forest-d); }
.field input, .field select, .field textarea{
  width:100%; padding:11px 13px; border:1.5px solid var(--line); border-radius:8px;
  font-family:inherit; font-size:14.5px; background:var(--paper); color:var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:2px solid var(--moss); outline-offset:1px; border-color:var(--moss);
}
.field textarea{ resize:vertical; min-height:80px; }
.form-note{ font-size:12.5px; color:var(--ink-soft); }

/* ---------- فراخوان تماس ---------- */
.contact-band{
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  background:var(--paper-d); border:1px solid var(--line); border-radius:14px; padding:28px 34px; flex-wrap:wrap;
}
.contact-band h3{ font-size:19px; }
.contact-band p{ color:var(--ink-soft); margin-top:6px; }

/* ---------- فوتر ---------- */
.site-footer{ background:var(--forest-d); color:#DCE8E2; }
.footer-top{
  display:grid; grid-template-columns:1.3fr 1fr 1fr 1.1fr; gap:36px; padding:56px 0 36px;
}
.footer-brand{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.footer-brand img{ width:40px; height:40px; }
.footer-brand b{ color:#fff; font-size:18px; }
.footer-col p{ color:#B9CBC1; font-size:14px; line-height:1.9; }
.footer-col h4{ color:#fff; font-size:15px; margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:#CBDBD2; transition:color .15s ease; }
.footer-col a:hover{ color:var(--gold); }
.footer-col .ext::after{ content:"↗"; font-size:11px; margin-inline-start:5px; opacity:.7; }
.social-row{ display:flex; gap:10px; margin-top:16px; }
.social-row a{
  width:36px; height:36px; border-radius:8px; background:rgba(255,255,255,.08);
  display:flex; align-items:center; justify-content:center; font-size:15px;
}
.social-row a:hover{ background:var(--gold); color:var(--forest-d); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding:20px 0;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-size:13px; color:#9FB5AA;
}

/* ---------- ریسپانسیو ---------- */
@media (max-width:960px){
  .hero-inner{ grid-template-columns:1fr; padding:40px 0; }
  .hero-art{ order:-1; max-width:320px; margin:0 auto; }
  .features{ grid-template-columns:1fr 1fr; }
  .news-grid{ grid-template-columns:1fr 1fr; }
  .register{ grid-template-columns:1fr; padding:30px; }
  .form-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
}
@media (max-width:680px){
  .main-nav, .header-actions .login-toggle span.txt{ display:none; }
  .nav-toggle{ display:block; }
  .header-actions{ gap:8px; }
  .features{ grid-template-columns:1fr; }
  .news-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; padding:40px 0 24px; }
  .hero h1{ font-size:32px; }
  .contact-band{ flex-direction:column; align-items:flex-start; }
}

/* ---------- صفحه ورود ---------- */
.auth-wrap{
  min-height:calc(100vh - 300px); display:flex; align-items:center; justify-content:center;
  padding:56px 20px; background:var(--mist);
}
.auth-card{
  width:100%; max-width:420px; background:#fff; border:1px solid var(--line);
  border-radius:16px; padding:38px 32px; box-shadow:var(--shadow);
}
.auth-icon{
  width:58px; height:58px; border-radius:12px; background:var(--forest);
  color:#fff; display:flex; align-items:center; justify-content:center; font-size:26px; margin-bottom:16px;
}
.auth-card h1{ font-size:22px; }
.auth-card p.sub{ color:var(--ink-soft); font-size:14px; margin-top:8px; }
.auth-form{ margin-top:24px; display:flex; flex-direction:column; gap:16px; }
.auth-switch{ margin-top:22px; text-align:center; font-size:13.5px; color:var(--ink-soft); }
.auth-switch a{ color:var(--forest); font-weight:700; }
.auth-back{ display:inline-flex; align-items:center; gap:6px; font-size:13.5px; color:var(--moss); font-weight:700; margin-bottom:22px; }

/* منوی موبایل باز */
body.nav-open .main-nav{
  display:flex; position:absolute; top:100%; right:0; left:0;
  background:var(--paper); flex-direction:column; padding:12px; border-bottom:1px solid var(--line);
  box-shadow:var(--shadow);
}