:root {
    /* Colores de Login SAP Fiori */
    --primary-color: #0070f2;
    --primary-dark: #004080;
    --text-main: #32363a;
    --text-muted: #6a6d70;
    --font-family: 'Roboto', Arial, sans-serif;
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    /* IMAGEN DE FONDO RESTAURADA */
    background: url('../img/fondo.png') center center / cover no-repeat fixed;
}

.overlay-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.6);
    z-index: 0;
}

.login-container {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.90);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    width: 100%;
    max-width: 420px;
    padding: 50px 40px;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
    border: 1px solid #d9d9d9;
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.form-header {
    text-align: center;
    margin-bottom: 35px;
}

.form-header .logo {
    max-width: 180px;
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.05));
}

.form-header h2 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 0 0 8px 0;
    letter-spacing: -0.5px;
}

.form-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
    font-weight: 600;
}

.input-group {
    position: relative;
    margin-bottom: 15px;
}

.input-group i.icon-left {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1.1rem;
    transition: var(--transition);
}

.input-group input {
    width: 100%;
    padding: 14px 14px 14px 45px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--text-main);
    box-sizing: border-box;
    transition: var(--transition);
    background: #ffffff;
    outline: none;
    font-weight: 500;
}

.input-group input:focus {
    border-color: var(--primary-color);
    background: #f2f7fd;
    box-shadow: 0 0 0 2px rgba(0, 112, 242, 0.2);
}

.input-group input:focus + i.icon-left {
    color: var(--primary-color);
}

.icon-right {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
    border: none;
    background: none;
    padding: 0;
}

.icon-right:hover {
    color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 4px;
    background: var(--primary-color);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 15px;
    font-family: var(--font-family);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-submit:hover { background: var(--primary-hover); }
.btn-submit:active { transform: translateY(0); }

.form-footer { text-align: center; margin-top: 30px; border-top: 1px solid rgba(226, 232, 240, 0.6); padding-top: 20px; }
.form-footer p { font-size: 0.8rem; color: var(--text-muted); margin: 0; font-weight: 600; }

@media (max-width: 480px) {
    .login-container { padding: 35px 25px; width: 90%; border-radius: 20px; }
    .form-header h2 { font-size: 1.15rem; }
    .input-group input { padding: 14px 14px 14px 40px; font-size: 0.95rem; }
}