/* ===========================================
   National A.I Company – Login (Cansu Theme)
   Magenta / Fuşya + Siyah + Beyaz
   =========================================== */

*, *::before, *::after { box-sizing: border-box; }

:root{
  /* Açık tema */
  --bg: #fff5f8;
  --bg-2: #ffe4ec;
  --panel: #ffffff;
  --text: #1a1a1a;
  --muted: #6b7280;
  --border: #ffd6e2;

  /* Logo renkleri */
  --brand-a: #d1006f;   /* fuşya */
  --brand-b: #ff2d8d;   /* açık pembe */
  --brand-c: #7a003c;   /* koyu magenta */

  --brand:   var(--brand-a);
  --brand-2: var(--brand-b);
  --brand-3: var(--brand-c);

  --ok: #16a34a;
  --error: #ef4444;

  --radius: 18px;
  --shadow: 0 18px 48px rgba(209,0,111,.18);
  --ring: 0 0 0 4px rgba(255,45,141,.25);
  --transition: 180ms ease;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial;
}

/* Koyu mod */
@media (prefers-color-scheme: dark){
  :root{
    --bg: #0f0a0d;
    --bg-2: #1a0f14cc;
    --panel: #140c10;
    --text: #f5f5f5;
    --muted: #f9a8d4;
    --border: #3a1a28;
    --shadow: 0 16px 48px rgba(0,0,0,.6);
    --ring: 0 0 0 3px rgba(209,0,111,.4);
  }
}

html, body { height: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); }

/* === Arka Plan === */
.login-body{
  min-height: 100%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(1100px 560px at 88% -8%, rgba(255,45,141,.25), transparent 60%),
    radial-gradient(1000px 620px at -10% 100%, rgba(209,0,111,.25), transparent 60%),
    linear-gradient(180deg, var(--bg), #ffffff);
  padding: 28px;
  position: relative;
  isolation: isolate;
}
.login-body::after{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(0deg, rgba(255,45,141,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,45,141,.06) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events:none;
  z-index:-1;
}

/* === Container === */
.login-container{
  width: 100%;
  max-width: 480px;
  background: linear-gradient(180deg, var(--panel), #fff0f5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 30px 26px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: pop var(--transition);
}

@keyframes pop{
  from{ opacity: 0; transform: translateY(8px) scale(.985); }
  to{ opacity: 1; transform: translateY(0) scale(1); }
}

/* === Logo === */
.logo-box{
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}
.logo-img{
  height: 80px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(255,45,141,.35));
}

/* === Başlık === */
.login-container h2{
  text-align: center;
  margin: 12px 0 18px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .2px;
  background: linear-gradient(90deg, var(--brand-a), var(--brand-b), var(--brand-c));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* === Hata === */
.error{
  margin: 0 0 14px;
  padding: 10px 12px;
  background: rgba(239, 68, 68, .1);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, .3);
  border-radius: 12px;
  font-size: 14px;
}

/* === Form === */
form{
  display: grid;
  gap: 12px;
}

input[type="text"],
input[type="password"]{
  width: 100%;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: #0b0b0b;
  outline: none;
  font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input::placeholder{ color: var(--muted); }

input:focus{
  border-color: var(--brand-b);
  box-shadow: var(--ring);
}

/* === Buton === */
button[type="submit"]{
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, var(--brand-a), var(--brand-b), var(--brand-c));
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 14px 28px rgba(122,0,60,.35);
}

button:hover{ filter: brightness(1.05); }
button:active{ transform: translateY(1px); }
button[disabled]{ opacity: .7; cursor: not-allowed; }

/* === Alt metin === */
.helper{
  margin-top: 10px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.helper a{
  background: linear-gradient(90deg, var(--brand-b), var(--brand-a));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-decoration: none;
  font-weight: 700;
}
.helper a:hover{ text-decoration: underline; }

/* === Responsive === */
@media (max-width: 520px){
  .login-container{ padding: 24px 18px 18px; border-radius: 14px; }
  .logo-img{ height: 70px; }
}

@media (prefers-reduced-motion: reduce){
  * { animation: none !important; transition: none !important; }
}