/* ═══════════════════════════════════════════
   MAIN.CSS  –  Shared / Layout styles
   @Resource.Common_SiteTitle – Cognitive Training Platform
═══════════════════════════════════════════ */

:root {
  --bg:       #0C0F1A;
  --panel:    #131726;
  --panel2:   #1A1F33;
  --border:   rgba(255,255,255,0.07);
  --text:     #E8EBF8;
  --muted:    #6B7099;
  --faint:    #3A3F5C;

  --teal:   #0BBFA0;
  --green:  #2DB56A;
  --indigo: #5B6CF9;
  --amber:  #F5A623;
  --rose:   #E84C7D;
  --sky:    #3AABF0;

  --cat1: #5B6CF9;
  --cat2: #F5A623;
  --cat3: #0BBFA0;
  --cat4: #E84C7D;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Heebo', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  direction: rtl;
}

body::before {
  content:''; position:fixed; inset:0; pointer-events:none; z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 40px 40px;
}
body::after {
  content:''; position:fixed; inset:0; pointer-events:none; z-index:0;
  background:
    radial-gradient(ellipse 55% 40% at 50% -10%, rgba(91,108,249,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 10% 80%,  rgba(11,191,160,0.09) 0%, transparent 60%),
    radial-gradient(ellipse 35% 30% at 90% 70%,  rgba(232,76,125,0.08) 0%, transparent 60%);
}

main { position:relative; z-index:2; }

/* ══════════════ TOPBAR ══════════════ */
.topbar {
  position: sticky; top:0; z-index: 100;
  background: rgba(12,15,26,0.88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}
.topbar-inner {
  max-width: 1400px; margin:0 auto;
  display: flex; align-items: center; gap: 20px;
  padding: 0 28px; height: 62px;
}

.brand-link { text-decoration:none; flex-shrink:0; }
.brand {
  font-family: 'Secular One', sans-serif;
  font-size: 19px; letter-spacing:-.3px;
  background: linear-gradient(90deg, #fff 40%, var(--indigo));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height:1.1;
}
.brand-sub {
  font-size: 9px; font-weight: 500; letter-spacing: 1.8px;
  text-transform: uppercase; color: var(--muted);
}

/* Nav links */
.topbar-nav { display:flex; gap:2px; }
.nav-link {
  padding: 7px 13px; border-radius: 8px; font-size: 13px; font-weight: 500;
  color: var(--muted); text-decoration: none; transition: .18s; white-space:nowrap;
}
.nav-link:hover { color: var(--text); background: var(--panel); }
.nav-link.active { color: #fff; background: var(--panel2); font-weight:600; }

/* Auth buttons */
.topbar-auth {
  margin-right: auto;
  display: flex; align-items: center; gap: 10px;
  position: relative;
}

.auth-btn {
  padding: 8px 18px; border-radius: 8px;
  font-size: 13px; font-weight: 700; font-family:'Heebo',sans-serif;
  text-decoration: none; letter-spacing:.2px; transition:.18s;
  white-space:nowrap; cursor:pointer;
}
.auth-login {
  background: transparent; color: var(--text);
  border: 1.5px solid var(--border);
}
.auth-login:hover { border-color: rgba(255,255,255,.25); color:#fff; background:var(--panel); }

.auth-register {
  background: var(--indigo); color: #fff;
  border: 1.5px solid transparent;
  box-shadow: 0 4px 14px rgba(91,108,249,.35);
}
.auth-register:hover { filter:brightness(1.12); transform:translateY(-1px); }

/* AI toggle */
.ai-advisor {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 14px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--panel);
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--text); white-space:nowrap;
}
.toggle {
  width: 34px; height: 19px; border-radius: 10px;
  background: var(--faint); position: relative; cursor: pointer;
  transition: background .25s;
}
.toggle::after {
  content:''; position:absolute; top:3px; right:3px;
  width:13px; height:13px; border-radius:50%; background:#fff;
  transition: right .25s;
}
.toggle.on { background: var(--indigo); }
.toggle.on::after { right: calc(100% - 16px); }

/* ── Auth user wrap (shared by logged-in & guest) ── */
.auth-user-wrap { position: relative; }

/* User chip button */
.user-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 12px 5px 5px; border-radius: 22px;
  border: 1px solid var(--border); background: var(--panel);
  cursor: pointer; transition: border-color .18s, background .18s;
  user-select: none; font-family: 'Heebo', sans-serif;
}
.user-chip:hover,
.user-chip[aria-expanded="true"] {
  border-color: rgba(255,255,255,.2);
  background: var(--panel2);
}

/* Guest variant – slightly dimmer */
.user-chip--guest { opacity: .85; }
.user-chip--guest:hover { opacity: 1; }

.user-avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--indigo), #8b5cf6);
  display: grid; place-items: center;
  font-size: 12px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.user-avatar--guest {
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--muted);
}
.user-name { font-size: 13px; font-weight: 600; color: var(--text); }

.chevron {
  color: var(--muted); flex-shrink: 0;
  transition: transform .2s;
}
.user-chip[aria-expanded="true"] .chevron { transform: rotate(180deg); }

/* ── Dropdown panel ── */
.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 16px 48px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.04);
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(.97);
  transform-origin: top left;
  transition: opacity .2s, transform .2s, visibility .2s;
  z-index: 300; overflow: hidden;
}
.user-dropdown.open {
  opacity: 1; visibility: visible; transform: none;
}

/* Logged-in header */
.dropdown-user-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px 12px;
}
.dropdown-user-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--indigo), #8b5cf6);
  display: grid; place-items: center;
  font-size: 14px; font-weight: 800; color: #fff;
}
.dropdown-user-name { font-size: 13px; font-weight: 700; color: var(--text); }
.dropdown-user-role { font-size: 10px; color: var(--muted); margin-top: 2px; letter-spacing: .3px; }

/* Guest header */
.dropdown-guest-header {
  padding: 14px 16px 10px;
  font-size: 13px; font-weight: 700; color: var(--text);
  border-bottom: 1px solid var(--border);
}

/* Divider */
.dropdown-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* Items */
.dropdown-item {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 10px 16px;
  font-size: 13px; font-weight: 500; color: var(--text);
  text-decoration: none; background: transparent; border: none;
  cursor: pointer; font-family: 'Heebo', sans-serif;
  text-align: right; direction: rtl;
  transition: background .14s;
}
.dropdown-item svg { flex-shrink: 0; color: var(--muted); }
.dropdown-item:hover { background: rgba(255,255,255,.06); }
.dropdown-item:hover svg { color: var(--text); }

/* Specific variants */
.dropdown-logout { color: var(--rose); }
.dropdown-logout svg { color: var(--rose); opacity: .7; }
.dropdown-logout:hover { background: rgba(232,76,125,.08); }

.dropdown-login {
  color: var(--text);
  font-weight: 600;
}
.dropdown-register {
  color: var(--indigo);
  font-weight: 700;
}
.dropdown-register svg { color: var(--indigo); }
.dropdown-register:hover { background: rgba(91,108,249,.08); }

/* ══════════════ FOOTER ══════════════ */
.site-footer {
  position: relative; z-index:2;
  border-top: 1px solid var(--border);
  background: rgba(12,15,26,.8);
  padding: 16px 28px;
  margin-top: 40px;
}
.footer-inner {
  max-width:1400px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
}
.footer-brand { font-size:12px; color:var(--muted); }
.footer-links { display:flex; gap:20px; }
.footer-links a { font-size:12px; color:var(--muted); text-decoration:none; transition:.15s; }
.footer-links a:hover { color:var(--text); }