/* =========================
   TESL4 — styles.css (v1)
   Clean, fast, mobile-first
   ========================= */

/* Reset */
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
img{ max-width:100%; height:auto; }
a{ color:inherit; }

/* Theme */
:root{
  --bg:#0b0f17;
  --bg2:#0f172a;
  --card:rgba(255,255,255,.06);
  --card2:rgba(255,255,255,.08);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.72);
  --line:rgba(255,255,255,.12);
  --accent:#7c3aed;  /* purple */
  --accent2:#22c55e; /* green */
  --warn:#f59e0b;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --radius:18px;
}

body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:
    radial-gradient(900px 600px at 20% 0%, rgba(124,58,237,.25), transparent 60%),
    radial-gradient(900px 600px at 80% 20%, rgba(34,197,94,.18), transparent 55%),
    linear-gradient(180deg, var(--bg), #070b12);
  color:var(--text);
  line-height:1.5;
}

.container{
  width:min(1100px, calc(100% - 32px));
  margin:0 auto;
  padding:22px 0 40px;
}

/* Links */
.nav a, .footer a{
  text-decoration:none;
}
.nav a:hover, .footer a:hover{
  text-decoration:underline;
  text-decoration-color: rgba(255,255,255,.35);
}

/* Nav */
.nav{
  position:sticky;
  top:0;
  z-index:2000;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(11,15,23,.78);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  width:min(1100px, calc(100% - 32px));
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  letter-spacing:.4px;
}
.logo{
  width:14px;
  height:14px;
  border-radius:999px;
  display:inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 18px rgba(124,58,237,.35);
}
.brand-text{ font-weight:900; }

/* Desktop nav links */
.navlinks{
  display:flex;
  align-items:center;
  gap:14px;
  font-weight:600;
  color:var(--muted);
}
.navlinks a{
  padding:8px 10px;
  border-radius:12px;
}
.navlinks a.active{
  color:var(--text);
  background: rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.10);
}

/* CTA button */
.cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:14px;
  font-weight:800;
  color:#0b0f17;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border:0;
  box-shadow: var(--shadow);
  text-decoration:none !important;
}
.cta:hover{
  filter: brightness(1.05);
  text-decoration:none !important;
}

/* Mobile nav toggle */
.nav-toggle{
  display:none;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color:var(--text);
  border-radius:12px;
  padding:8px 10px;
  font-size:18px;
  cursor:pointer;
}

/* Mobile overlay + drawer (default hidden) */
.nav-overlay{
  display:none;
}
.nav-drawer{
  display:none;
}

/* Hero */
.hero{
  margin-top:10px;
}
.kicker{
  display:inline-block;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color:var(--muted);
  font-weight:700;
  letter-spacing:.2px;
  font-size:13px;
}
.h1{
  font-size: clamp(30px, 4vw, 48px);
  line-height:1.08;
  margin:14px 0 10px;
  letter-spacing:-.5px;
}
.sub{
  margin:0;
  color:var(--muted);
  font-size:16px;
  max-width: 75ch;
}

/* Panels / cards */
.panel{
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding:16px;
  box-shadow: var(--shadow);
}

.hr{
  height:1px;
  background: rgba(255,255,255,.12);
  margin:14px 0;
}

.small{
  color:var(--muted);
  font-size:13px;
}

/* Grid */
.grid2{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:16px;
}

/* Inputs */
label{
  display:block;
  margin-top:10px;
  margin-bottom:6px;
  color: rgba(255,255,255,.85);
  font-weight:700;
  font-size:13px;
}
.input{
  width:100%;
  padding:11px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline: none;
}
.input:focus{
  border-color: rgba(124,58,237,.55);
  box-shadow: 0 0 0 3px rgba(124,58,237,.20);
}

/* Badge */
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-weight:800;
  font-size:12px;
}
.dot{
  width:8px;
  height:8px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 10px rgba(124,58,237,.35);
}

/* Good / Warn text */
.good{ color: #86efac; }
.warn{ color: #fbbf24; }

/* Footer */
.footer{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.10);
  color: var(--muted);
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
}

/* =========================
   Mobile
   ========================= */
@media (max-width: 900px){
  .grid2{ grid-template-columns: 1fr; }
}

@media (max-width: 768px){
  /* Hide desktop links, show burger */
  .navlinks{ display:none; }
  .nav-toggle{ display:inline-flex; }

  /* Drawer + overlay */
  .nav-overlay{
    display:block;
    position:fixed;
    inset:0;
    background: rgba(0,0,0,.45);
    opacity:0;
    pointer-events:none;
    transition: opacity .25s ease;
    z-index:3000;
  }

  .nav-drawer{
    display:block;
    position:fixed !important;
    top:0 !important;
    right:-110% !important; /* fully off-screen by default */
    width:min(85vw, 360px) !important;
    height:100dvh !important;
    background: rgba(11,15,23,.96) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-left:1px solid rgba(255,255,255,.12) !important;
    transition: right .3s ease !important;
    z-index:3001 !important;
    overflow-y:auto;
    padding:14px;
  }

  .nav.open .nav-drawer{ right:0 !important; }
  .nav.open .nav-overlay{
    opacity:1 !important;
    pointer-events:auto !important;
  }

  .nav-drawer a{
    display:block;
    padding:12px 10px;
    border-radius:14px;
    color: var(--text);
    border:1px solid transparent;
    text-decoration:none;
  }
  .nav-drawer a:hover{
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.10);
  }
  .nav-drawer a.active{
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.10);
  }
}