/* =========================================
   ULTRON UI - LOGIN (v4.0)
   Theme: Neon Command
   ========================================= */
:root {
    --bg-deep: #070b11;
    --bg-soft: #0e141d;
    --panel: #121a24;
    --panel-strong: #161f2b;
    --neon: #00ff41;
    --danger: #ff3333;
    --text: #f5f7f8;
    --text-soft: #a5adb4;
    --border: #1f2935;
    --font-main: "Space Grotesk", "Sora", sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
}

body {
    background-color: var(--bg-deep);
    background-image:
        radial-gradient(circle at 12% 10%, rgba(0, 255, 65, 0.12), transparent 45%),
        radial-gradient(circle at 88% 12%, rgba(0, 243, 255, 0.1), transparent 45%),
        radial-gradient(circle at 90% 90%, rgba(255, 51, 51, 0.08), transparent 40%),
        linear-gradient(180deg, rgba(7, 11, 17, 0.9), rgba(4, 7, 11, 0.98));
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: linear-gradient(180deg, rgba(8, 12, 18, 0.05), rgba(0, 0, 0, 0.8));
    pointer-events: none;
    z-index: 0;
}

.login-container {
    width: 100%;
    max-width: 440px;
    padding: 24px;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.login-card {
    width: 100%;
    background: linear-gradient(180deg, rgba(18, 26, 36, 0.95), rgba(12, 18, 26, 0.98));
    border: 1px solid var(--border);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55), 0 0 40px rgba(0, 255, 65, 0.08);
    padding: 2.8rem 2.4rem;
    border-radius: 18px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    animation: loginIn 0.55s ease-out both;
}

.login-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 22px;
    right: 22px;
    height: 2px;
    background: var(--neon);
    box-shadow: 0 0 18px rgba(0, 255, 65, 0.35);
    opacity: 0.75;
}

h1 {
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 1.8rem;
    font-size: 1.9rem;
    text-shadow: 0 0 25px rgba(0, 255, 65, 0.3);
}

form { width: 100%; }

.form-group {
    margin-bottom: 1.1rem;
    width: 100%;
    text-align: left;
}

label {
    display: block;
    color: var(--text-soft);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    margin-left: 4px;
}

input {
    width: 100%;
    background: #0b1118;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 14px 16px;
    font-size: 1rem;
    outline: none;
    transition: all 0.25s ease;
    border-radius: 10px;
}

input:focus {
    border-color: var(--neon);
    box-shadow: 0 0 18px rgba(0, 255, 65, 0.15);
    background: #0f1722;
}

.btn-login {
    width: 100%;
    padding: 14px;
    margin-top: 1.3rem;
    background: transparent;
    color: var(--neon);
    border: 1px solid var(--neon);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: 0.25s ease;
    border-radius: 10px;
}

.btn-login:hover {
    background: var(--neon);
    color: #000;
    box-shadow: 0 0 25px rgba(0, 255, 65, 0.4);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.modal-status {
    margin-top: 18px;
    font-size: 0.9rem;
    min-height: 20px;
    font-weight: 500;
}

.modal-status.loading { color: #fff; }
.modal-status.error { color: var(--danger); }
.modal-status.success { color: var(--neon); }

.sys-id {
    position: fixed;
    bottom: 12px;
    right: 18px;
    color: #5f6670;
    font-size: 0.7rem;
    font-family: monospace;
    letter-spacing: 0.05em;
    z-index: 1;
}

@keyframes loginIn {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 520px) {
    .login-container {
        padding: 16px;
    }

    .login-card {
        padding: 2.4rem 2rem;
    }
}