/* =====================================================================
   Giriş Ekranı (giris-yap) — görsel katman
   ---------------------------------------------------------------------
   Sadece giris-yap.php yükler; kurallar `.gr-ekran` altında kapsanır.

   Arka planda fotoğraf YOK — tamamı CSS ile üretilen koyu bir sahne
   (yavaş süzülen renk bulutları + solan ızgara). Anka logosu beyaz
   çizgi olduğu için zemin bilerek koyu tutuldu.

   JS sözleşmesi (DEĞİŞTİRİLMEZ):
     form   : #GirisForm  (authentication.js submit'i buna bağlı)
     alanlar: input[name="id"], input[name="password"] — ikisinde de
              `paid` sınıfı var; sayısal tuş takımı bu sınıfa bağlanıyor.
     klavye : #virtualKeyboard + appendNumber() / deleteLast() / clearAll()
   ===================================================================== */

.gr-ekran {
    --gr-bordo: #c4102b;
    --gr-kirmizi: #ff4d6a;

    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    overflow: hidden;
    /* Zemin burada da veriliyor: tema `body`yi beyaza çekerse bile
       sahne koyu kalsın. */
    background: #07070f;
}

/* Renk bulutları — yavaşça süzülür */
.gr-ekran::before {
    content: "";
    position: fixed;
    inset: -25%;
    z-index: 0;
    background:
        radial-gradient(38% 42% at 18% 26%, rgba(196, 16, 43, .36) 0%, transparent 62%),
        radial-gradient(34% 38% at 82% 16%, rgba(36, 69, 126, .38) 0%, transparent 60%),
        radial-gradient(46% 48% at 68% 88%, rgba(141, 0, 27, .28) 0%, transparent 64%);
    filter: blur(26px);
    animation: gr-akis 28s ease-in-out infinite alternate;
    will-change: transform;
}

@keyframes gr-akis {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(-2.6%, 2.2%, 0) scale(1.07);
    }

    100% {
        transform: translate3d(2.2%, -2.6%, 0) scale(1.02);
    }
}

/* Kenarlara doğru silinen ince ızgara */
.gr-ekran::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(ellipse 72% 64% at 50% 45%, #000 18%, transparent 78%);
    mask-image: radial-gradient(ellipse 72% 64% at 50% 45%, #000 18%, transparent 78%);
}

@media (prefers-reduced-motion: reduce) {
    .gr-ekran::before {
        animation: none;
    }
}

.gr-ekran>* {
    position: relative;
    z-index: 1;
}

/* ---------------------------------------------------------------------
   Kart — koyu cam
   --------------------------------------------------------------------- */
.gr-kart {
    width: 100%;
    max-width: 430px;
    padding: 2rem 1.9rem 1.9rem;
    background: rgba(255, 255, 255, .045);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 20px;
    box-shadow:
        0 30px 70px rgba(0, 0, 0, .55),
        inset 0 1px 0 rgba(255, 255, 255, .08);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    backdrop-filter: blur(16px) saturate(120%);
}

/* Logo — beyaz çizgi, altında yumuşak ışık */
.gr-logo {
    display: block;
    text-align: center;
    margin-bottom: 1.5rem;
}

.gr-logo img {
    width: 100%;
    max-width: 250px;
    height: auto;
    filter: drop-shadow(0 0 22px rgba(255, 255, 255, .18));
}

.gr-baslik {
    text-align: center;
    color: #fff;
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: .01em;
    margin: 0 0 .3rem;
}

.gr-alt-baslik {
    display: block;
    text-align: center;
    color: rgba(255, 255, 255, .42);
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    margin-bottom: 1.6rem;
}

/* ---------------------------------------------------------------------
   Form
   --------------------------------------------------------------------- */
.gr-ekran .form-label {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .5);
    margin-bottom: .38rem;
}

.gr-ekran .form-label i {
    color: var(--gr-kirmizi);
    font-size: .9rem;
}

.gr-ekran .form-control {
    height: 50px;
    background-color: rgba(255, 255, 255, .06) !important;
    border: 1px solid rgba(255, 255, 255, .14) !important;
    border-radius: .65rem !important;
    padding: 0 .95rem !important;
    font-size: 1.1rem !important;
    font-weight: 700;
    letter-spacing: .1em;
    color: #fff !important;
    box-shadow: none !important;
    font-variant-numeric: tabular-nums;
    transition: background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
}

/* Odaklı alan = tuş takımının yazdığı alan */
.gr-ekran .form-control:focus {
    background-color: rgba(255, 255, 255, .1) !important;
    border-color: var(--gr-kirmizi) !important;
    box-shadow: 0 0 0 3px rgba(255, 77, 106, .18) !important;
}

/* Tarayıcı otomatik doldurma beyaz zemin basıyordu */
.gr-ekran .form-control:-webkit-autofill,
.gr-ekran .form-control:-webkit-autofill:focus {
    -webkit-text-fill-color: #fff;
    -webkit-box-shadow: 0 0 0 1000px #1a1a26 inset;
    caret-color: #fff;
}

.gr-alan+.gr-alan {
    margin-top: .85rem;
}

/* Giriş butonu */
.gr-ekran .btn-giris {
    width: 100%;
    height: 54px;
    margin-top: 1.2rem;
    background: linear-gradient(135deg, #c4102b 0%, #8d001b 100%);
    border: 0;
    color: #fff;
    border-radius: .7rem;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: .04em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    box-shadow: 0 10px 24px rgba(141, 0, 27, .42);
    transition: filter .15s ease, box-shadow .18s ease, transform .12s ease;
}

.gr-ekran .btn-giris:hover {
    color: #fff;
    filter: brightness(1.1);
    box-shadow: 0 14px 30px rgba(141, 0, 27, .52);
}

.gr-ekran .btn-giris:active {
    transform: translateY(1px);
}

/* ---------------------------------------------------------------------
   Sayısal tuş takımı
   ---------------------------------------------------------------------
   custom.js bunu yüzen pencere gibi kullanıyor (style.top/left verip
   dışarı tıklanınca display:none yapıyor). Karta gömdüğümüz için o
   davranışı JS'e dokunmadan etkisiz bırakıyoruz.
   --------------------------------------------------------------------- */
.gr-ekran #virtualKeyboard.keyboard-modal {
    position: static !important;
    display: block !important;
    width: auto !important;
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
    margin-top: 1.1rem;
    overflow: visible;
}

.gr-ekran #virtualKeyboard .keyboard-keys {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .5rem;
}

.gr-ekran #virtualKeyboard .btn {
    width: auto;
    height: 48px;
    border-radius: 10px;
    font-size: 1.22rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 !important;
    font-variant-numeric: tabular-nums;
    transition: background-color .12s ease, filter .12s ease, transform .1s ease;
}

.gr-ekran #virtualKeyboard .btn:active {
    transform: translateY(1px);
}

.gr-ekran #virtualKeyboard .btn.bg-info {
    background: rgba(255, 255, 255, .07) !important;
    border: 1px solid rgba(255, 255, 255, .12);
    color: #fff !important;
}

.gr-ekran #virtualKeyboard .btn.bg-info:hover {
    background: rgba(255, 255, 255, .13) !important;
}

.gr-ekran #virtualKeyboard .btn.bg-danger {
    background: linear-gradient(135deg, #c4102b 0%, #8d001b 100%) !important;
    border: 0;
    color: #fff !important;
    font-size: 1.05rem;
}

.gr-ekran #virtualKeyboard .btn.bg-danger:hover {
    filter: brightness(1.1);
}

/* ---------------------------------------------------------------------
   Dipnot
   --------------------------------------------------------------------- */
.gr-dipnot {
    margin-top: 1.3rem;
    text-align: center;
    font-size: .74rem;
}

.gr-dipnot a {
    color: rgba(255, 255, 255, .38);
    text-decoration: none;
    transition: color .15s ease;
}

.gr-dipnot a:hover {
    color: rgba(255, 255, 255, .7);
}

/* ---------------------------------------------------------------------
   Dar / alçak ekranlar
   --------------------------------------------------------------------- */
@media (max-height: 780px) {
    .gr-ekran {
        padding: 12px;
    }

    .gr-kart {
        padding: 1.4rem 1.6rem 1.5rem;
    }

    .gr-logo {
        margin-bottom: 1rem;
    }

    .gr-logo img {
        max-width: 200px;
    }

    .gr-alt-baslik {
        margin-bottom: 1.1rem;
    }

    .gr-ekran .form-control {
        height: 46px;
    }

    .gr-ekran #virtualKeyboard .btn {
        height: 42px;
        font-size: 1.1rem;
    }

    .gr-ekran .btn-giris {
        height: 48px;
        margin-top: .9rem;
    }

    .gr-dipnot {
        margin-top: .9rem;
    }
}

@media (max-width: 420px) {
    .gr-kart {
        padding: 1.3rem 1.2rem 1.4rem;
    }
}