/* Stools-Lufy Digital · Finans - giris ekrani
   Ayni kimlik: sicak komur zemin, cift renkli marka isareti. */

:root {
    --bg-0: #131210;
    --bg-1: #1a1917;
    --bg-2: #23211d;
    --border: #302d28;
    --border-strong: #423e37;
    --fg-0: #f0ede6;
    --fg-1: #aaa494;
    --fg-2: #766f60;
    --fg-3: #524d42;

    --teal: #2dd4bf;
    --coral: #ff8c5f;
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.13);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-0);
    color: var(--fg-0);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    font-size: 14px;
    line-height: 1.5;
}

.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 380px;
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 30px 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    /* Ust kenar: iki firmanin renkleri */
    border-top: 3px solid transparent;
    background-clip: padding-box;
    position: relative;
}
.login-card::before {
    content: "";
    position: absolute;
    top: -3px; left: 16px; right: 16px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: linear-gradient(90deg, var(--teal) 0 50%, var(--coral) 50% 100%);
}

.login-head { text-align: center; margin-bottom: 22px; }

.brand-mark {
    width: 52px; height: 52px;
    margin: 0 auto 14px;
    border-radius: 13px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    font-weight: 800; font-size: 19px;
}
.brand-mark span {
    display: flex; align-items: center; justify-content: center;
    color: #131210;
}
.brand-mark span:first-child { background: var(--teal); }
.brand-mark span:last-child { background: var(--coral); }

.login-head h1 { margin: 0; font-size: 18px; font-weight: 650; letter-spacing: -0.02em; }
.login-head .sub {
    margin: 5px 0 0;
    color: var(--fg-2);
    font-size: 11.5px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.alert {
    background: var(--danger-soft);
    border: 1px solid rgba(248, 113, 113, 0.35);
    color: var(--danger);
    border-radius: 8px;
    padding: 10px 13px;
    font-size: 13px;
    margin-bottom: 16px;
}

form { display: flex; flex-direction: column; gap: 15px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: 12px; font-weight: 600; color: var(--fg-1); }

input[type="text"], input[type="password"] {
    width: 100%;
    background: var(--bg-0);
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    color: var(--fg-0);
    padding: 11px 13px;
    font-size: 14px;
    font-family: inherit;
}
input:focus { border-color: var(--teal); outline: none; }

.password-wrap { position: relative; display: flex; }
.password-wrap input { padding-right: 70px; }
.toggle-pw {
    position: absolute;
    right: 6px; top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--fg-2);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
}
.toggle-pw:hover { color: var(--fg-0); }
.toggle-pw:focus-visible { outline: 2px solid var(--teal); outline-offset: 1px; }

.btn-primary {
    margin-top: 4px;
    background: var(--fg-0);
    color: var(--bg-0);
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-size: 14px;
    font-weight: 650;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-primary:hover { background: #fff; }
.btn-primary:disabled { opacity: 0.6; cursor: default; }
.btn-primary:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

.login-foot {
    margin-top: 22px;
    text-align: center;
    color: var(--fg-3);
}

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